[INFO] fetching crate phile 0.1.4...
[INFO] testing phile-0.1.4 against 1.54.0 for beta-1.55-1
[INFO] extracting crate phile 0.1.4 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate phile 0.1.4 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate phile 0.1.4
[INFO] finished tweaking crates.io crate phile 0.1.4
[INFO] tweaked toml for crates.io crate phile 0.1.4 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 416ab3117e7ad0ce2c142b000bfaeab92391d68d1b5ed830f00fad8f43b201d9
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "416ab3117e7ad0ce2c142b000bfaeab92391d68d1b5ed830f00fad8f43b201d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "416ab3117e7ad0ce2c142b000bfaeab92391d68d1b5ed830f00fad8f43b201d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "416ab3117e7ad0ce2c142b000bfaeab92391d68d1b5ed830f00fad8f43b201d9", kill_on_drop: false }`
[INFO] [stdout] 416ab3117e7ad0ce2c142b000bfaeab92391d68d1b5ed830f00fad8f43b201d9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f114871fa64bc8ee1628b748e8566bb30f09a8c65ef161a5209c2282bf03ac0c
[INFO] running `Command { std: "docker" "start" "-a" "f114871fa64bc8ee1628b748e8566bb30f09a8c65ef161a5209c2282bf03ac0c", kill_on_drop: false }`
[INFO] [stderr]    Compiling phile v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/error.rs:112:56
[INFO] [stdout]     |
[INFO] [stdout] 112 |     pub fn pretty_print<P: AsRef<str>>(&self, wr: &mut io::Write, sources: &[P]) -> io::Result<()> {
[INFO] [stdout]     |                                                        ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/error.rs:151:32
[INFO] [stdout]     |
[INFO] [stdout] 151 |     fn cause(&self) -> Option<&std::error::Error> {
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parser.rs:521:28
[INFO] [stdout]     |
[INFO] [stdout] 521 |         let node_ctors: &[&Fn(Box<Exp<'a>>) -> ExpKind] = &[
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(Box<Exp<'a>>) -> ExpKind`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/dalgen/go/mod.rs:112:92
[INFO] [stdout]     |
[INFO] [stdout] 112 |     fn writers_for_types<'b, I>(&mut self, types: I) -> Result<BTreeMap<String, Rc<RefCell<io::Write>>>>
[INFO] [stdout]     |                                                                                            ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/dalgen/go/mod.rs:130:73
[INFO] [stdout]     |
[INFO] [stdout] 130 |     fn writer_with_preamble(&mut self, name: &str) -> Result<Rc<RefCell<io::Write>>> {
[INFO] [stdout]     |                                                                         ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/dalgen/go/mod.rs:140:18
[INFO] [stdout]     |
[INFO] [stdout] 140 |         wr: &mut io::Write,
[INFO] [stdout]     |                  ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/dalgen/go/mod.rs:173:18
[INFO] [stdout]     |
[INFO] [stdout] 173 |         wr: &mut io::Write,
[INFO] [stdout]     |                  ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/dalgen/go/mod.rs:220:24
[INFO] [stdout]     |
[INFO] [stdout] 220 | fn write_type(wr: &mut io::Write, ty: &WkType, params: &CodegenParams) -> Result<()> {
[INFO] [stdout]     |                        ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/dalgen/go/mod.rs:251:33
[INFO] [stdout]     |
[INFO] [stdout] 251 | fn write_optional_type(wr: &mut io::Write, wrapped: &WkType, params: &CodegenParams) -> Result<()> {
[INFO] [stdout]     |                                 ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/dalgen/go/mod.rs:255:32
[INFO] [stdout]     |
[INFO] [stdout] 255 | fn write_pointer_type(wr: &mut io::Write, pointed: &WkType, params: &CodegenParams) -> Result<()> {
[INFO] [stdout]     |                                ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/dalgen/go/mod.rs:259:30
[INFO] [stdout]     |
[INFO] [stdout] 259 | fn write_array_type(wr: &mut io::Write, element: &WkType, params: &CodegenParams) -> Result<()> {
[INFO] [stdout]     |                              ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/dalgen/go/mod.rs:263:30
[INFO] [stdout]     |
[INFO] [stdout] 263 | fn write_tuple_type(wr: &mut io::Write, types: &[WkType], params: &CodegenParams) -> Result<()> {
[INFO] [stdout]     |                              ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/dalgen/go/mod.rs:275:33
[INFO] [stdout]     |
[INFO] [stdout] 275 | fn write_function_type(wr: &mut io::Write, ty: &FunctionType, params: &CodegenParams) -> Result<()> {
[INFO] [stdout]     |                                 ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/dalgen/go/mod.rs:292:26
[INFO] [stdout]     |
[INFO] [stdout] 292 | fn write_header(wr: &mut io::Write, params: &CodegenParams) -> Result<()> {
[INFO] [stdout]     |                          ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/dalgen/go/mod.rs:300:34
[INFO] [stdout]     |
[INFO] [stdout] 300 | fn write_comment_header(wr: &mut io::Write) -> io::Result<()> {
[INFO] [stdout]     |                                  ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/dalgen/go/mod.rs:310:29
[INFO] [stdout]     |
[INFO] [stdout] 310 | fn write_namespace(wr: &mut io::Write, params: &CodegenParams) -> Result<()> {
[INFO] [stdout]     |                             ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/dalgen/go/mod.rs:321:27
[INFO] [stdout]     |
[INFO] [stdout] 321 | fn write_imports(wr: &mut io::Write, params: &CodegenParams) -> io::Result<()> {
[INFO] [stdout]     |                           ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/dalgen/go/mod.rs:335:30
[INFO] [stdout]     |
[INFO] [stdout] 335 | fn write_dummy_uses(wr: &mut io::Write, params: &CodegenParams) -> io::Result<()> {
[INFO] [stdout]     |                              ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/dalgen/go/mod.rs:367:23
[INFO] [stdout]     |
[INFO] [stdout] 367 |                 '\x20'...'\x7e' => f.write_char(ch)?, // printable
[INFO] [stdout]     |                       ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/dalgen/go/mod.rs:368:27
[INFO] [stdout]     |
[INFO] [stdout] 368 |                 '\u{0000}'...'\u{ffff}' => write!(f, r"\u{:04x}", ch as u32)?,
[INFO] [stdout]     |                           ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/dalgen/go/mod.rs:403:18
[INFO] [stdout]     |
[INFO] [stdout] 403 |     wr:     &mut io::Write,
[INFO] [stdout]     |                  ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/dalgen/go/mod.rs:421:27
[INFO] [stdout]     |
[INFO] [stdout] 421 | fn generate_expr(wr: &mut io::Write, expr: &RcExpr, params: &CodegenParams) -> Result<()> {
[INFO] [stdout]     |                           ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/dalgen/go/mod.rs:455:34
[INFO] [stdout]     |
[INFO] [stdout] 455 | fn generate_nil_literal(wr: &mut io::Write, id: &ExprId, params: &CodegenParams) -> Result<()> {
[INFO] [stdout]     |                                  ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/dalgen/go/mod.rs:462:35
[INFO] [stdout]     |
[INFO] [stdout] 462 | fn generate_bool_literal(wr: &mut io::Write, id: &ExprId, b: bool, params: &CodegenParams) -> Result<()> {
[INFO] [stdout]     |                                   ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/dalgen/go/mod.rs:469:34
[INFO] [stdout]     |
[INFO] [stdout] 469 | fn generate_int_literal(wr: &mut io::Write, id: &ExprId, n: u64, params: &CodegenParams) -> Result<()> {
[INFO] [stdout]     |                                  ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/dalgen/go/mod.rs:476:36
[INFO] [stdout]     |
[INFO] [stdout] 476 | fn generate_float_literal(wr: &mut io::Write, id: &ExprId, x: f64, params: &CodegenParams) -> Result<()> {
[INFO] [stdout]     |                                    ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/dalgen/go/mod.rs:483:37
[INFO] [stdout]     |
[INFO] [stdout] 483 | fn generate_string_literal(wr: &mut io::Write, id: &ExprId, s: &str, params: &CodegenParams) -> Result<()> {
[INFO] [stdout]     |                                     ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/dalgen/go/mod.rs:490:27
[INFO] [stdout]     |
[INFO] [stdout] 490 | fn generate_load(wr: &mut io::Write, id: &ExprId, expr: &WkExpr, params: &CodegenParams) -> Result<()> {
[INFO] [stdout]     |                           ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/dalgen/go/mod.rs:500:29
[INFO] [stdout]     |
[INFO] [stdout] 500 | fn generate_ignore(wr: &mut io::Write, id: &ExprId, expr: &RcExpr, params: &CodegenParams) -> Result<()> {
[INFO] [stdout]     |                             ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/dalgen/go/mod.rs:508:31
[INFO] [stdout]     |
[INFO] [stdout] 508 | fn generate_sequence(wr: &mut io::Write, id: &ExprId, exprs: &[RcExpr], params: &CodegenParams) -> Result<()> {
[INFO] [stdout]     |                               ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/dalgen/go/mod.rs:527:18
[INFO] [stdout]     |
[INFO] [stdout] 527 |     wr:     &mut io::Write,
[INFO] [stdout]     |                  ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/dalgen/go/mod.rs:582:27
[INFO] [stdout]     |
[INFO] [stdout] 582 | fn write_expr_id(wr: &mut io::Write, id: &ExprId, params: &CodegenParams) -> io::Result<()> {
[INFO] [stdout]     |                           ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/dalgen/go/mod.rs:595:29
[INFO] [stdout]     |
[INFO] [stdout] 595 | fn write_expr_decl(wr: &mut io::Write, expr: &RcExpr, params: &CodegenParams) -> Result<()> {
[INFO] [stdout]     |                             ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/dalgen/mod.rs:143:27
[INFO] [stdout]     |
[INFO] [stdout] 143 | pub type WriterProvider = FnMut(&str) -> Result<Rc<RefCell<io::Write>>>;
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&str) -> Result<Rc<RefCell<io::Write>>>`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/dalgen/mod.rs:143:60
[INFO] [stdout]     |
[INFO] [stdout] 143 | pub type WriterProvider = FnMut(&str) -> Result<Rc<RefCell<io::Write>>>;
[INFO] [stdout]     |                                                            ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/error.rs:141:46
[INFO] [stdout]     |
[INFO] [stdout] 141 |             Error::IO(ref err)        => err.description(),
[INFO] [stdout]     |                                              ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/error.rs:142:46
[INFO] [stdout]     |
[INFO] [stdout] 142 |             Error::Borrow(ref err)    => err.description(),
[INFO] [stdout]     |                                              ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/error.rs:143:46
[INFO] [stdout]     |
[INFO] [stdout] 143 |             Error::BorrowMut(ref err) => err.description(),
[INFO] [stdout]     |                                              ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 38 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.69s
[INFO] running `Command { std: "docker" "inspect" "f114871fa64bc8ee1628b748e8566bb30f09a8c65ef161a5209c2282bf03ac0c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f114871fa64bc8ee1628b748e8566bb30f09a8c65ef161a5209c2282bf03ac0c", kill_on_drop: false }`
[INFO] [stdout] f114871fa64bc8ee1628b748e8566bb30f09a8c65ef161a5209c2282bf03ac0c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0bcd5ac7bedeebfa434c7e5c45a385bf24dd3b215c296e04ce6de693f40ffd5b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "0bcd5ac7bedeebfa434c7e5c45a385bf24dd3b215c296e04ce6de693f40ffd5b", kill_on_drop: false }`
[INFO] [stderr]    Compiling itertools v0.7.11
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/error.rs:112:56
[INFO] [stdout]     |
[INFO] [stdout] 112 |     pub fn pretty_print<P: AsRef<str>>(&self, wr: &mut io::Write, sources: &[P]) -> io::Result<()> {
[INFO] [stdout]     |                                                        ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/error.rs:151:32
[INFO] [stdout]     |
[INFO] [stdout] 151 |     fn cause(&self) -> Option<&std::error::Error> {
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parser.rs:521:28
[INFO] [stdout]     |
[INFO] [stdout] 521 |         let node_ctors: &[&Fn(Box<Exp<'a>>) -> ExpKind] = &[
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(Box<Exp<'a>>) -> ExpKind`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/dalgen/go/mod.rs:112:92
[INFO] [stdout]     |
[INFO] [stdout] 112 |     fn writers_for_types<'b, I>(&mut self, types: I) -> Result<BTreeMap<String, Rc<RefCell<io::Write>>>>
[INFO] [stdout]     |                                                                                            ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/dalgen/go/mod.rs:130:73
[INFO] [stdout]     |
[INFO] [stdout] 130 |     fn writer_with_preamble(&mut self, name: &str) -> Result<Rc<RefCell<io::Write>>> {
[INFO] [stdout]     |                                                                         ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/dalgen/go/mod.rs:140:18
[INFO] [stdout]     |
[INFO] [stdout] 140 |         wr: &mut io::Write,
[INFO] [stdout]     |                  ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/dalgen/go/mod.rs:173:18
[INFO] [stdout]     |
[INFO] [stdout] 173 |         wr: &mut io::Write,
[INFO] [stdout]     |                  ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/dalgen/go/mod.rs:220:24
[INFO] [stdout]     |
[INFO] [stdout] 220 | fn write_type(wr: &mut io::Write, ty: &WkType, params: &CodegenParams) -> Result<()> {
[INFO] [stdout]     |                        ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/dalgen/go/mod.rs:251:33
[INFO] [stdout]     |
[INFO] [stdout] 251 | fn write_optional_type(wr: &mut io::Write, wrapped: &WkType, params: &CodegenParams) -> Result<()> {
[INFO] [stdout]     |                                 ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/dalgen/go/mod.rs:255:32
[INFO] [stdout]     |
[INFO] [stdout] 255 | fn write_pointer_type(wr: &mut io::Write, pointed: &WkType, params: &CodegenParams) -> Result<()> {
[INFO] [stdout]     |                                ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/dalgen/go/mod.rs:259:30
[INFO] [stdout]     |
[INFO] [stdout] 259 | fn write_array_type(wr: &mut io::Write, element: &WkType, params: &CodegenParams) -> Result<()> {
[INFO] [stdout]     |                              ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/dalgen/go/mod.rs:263:30
[INFO] [stdout]     |
[INFO] [stdout] 263 | fn write_tuple_type(wr: &mut io::Write, types: &[WkType], params: &CodegenParams) -> Result<()> {
[INFO] [stdout]     |                              ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/dalgen/go/mod.rs:275:33
[INFO] [stdout]     |
[INFO] [stdout] 275 | fn write_function_type(wr: &mut io::Write, ty: &FunctionType, params: &CodegenParams) -> Result<()> {
[INFO] [stdout]     |                                 ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/dalgen/go/mod.rs:292:26
[INFO] [stdout]     |
[INFO] [stdout] 292 | fn write_header(wr: &mut io::Write, params: &CodegenParams) -> Result<()> {
[INFO] [stdout]     |                          ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/dalgen/go/mod.rs:300:34
[INFO] [stdout]     |
[INFO] [stdout] 300 | fn write_comment_header(wr: &mut io::Write) -> io::Result<()> {
[INFO] [stdout]     |                                  ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/dalgen/go/mod.rs:310:29
[INFO] [stdout]     |
[INFO] [stdout] 310 | fn write_namespace(wr: &mut io::Write, params: &CodegenParams) -> Result<()> {
[INFO] [stdout]     |                             ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/dalgen/go/mod.rs:321:27
[INFO] [stdout]     |
[INFO] [stdout] 321 | fn write_imports(wr: &mut io::Write, params: &CodegenParams) -> io::Result<()> {
[INFO] [stdout]     |                           ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/dalgen/go/mod.rs:335:30
[INFO] [stdout]     |
[INFO] [stdout] 335 | fn write_dummy_uses(wr: &mut io::Write, params: &CodegenParams) -> io::Result<()> {
[INFO] [stdout]     |                              ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/dalgen/go/mod.rs:367:23
[INFO] [stdout]     |
[INFO] [stdout] 367 |                 '\x20'...'\x7e' => f.write_char(ch)?, // printable
[INFO] [stdout]     |                       ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/dalgen/go/mod.rs:368:27
[INFO] [stdout]     |
[INFO] [stdout] 368 |                 '\u{0000}'...'\u{ffff}' => write!(f, r"\u{:04x}", ch as u32)?,
[INFO] [stdout]     |                           ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/dalgen/go/mod.rs:403:18
[INFO] [stdout]     |
[INFO] [stdout] 403 |     wr:     &mut io::Write,
[INFO] [stdout]     |                  ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/dalgen/go/mod.rs:421:27
[INFO] [stdout]     |
[INFO] [stdout] 421 | fn generate_expr(wr: &mut io::Write, expr: &RcExpr, params: &CodegenParams) -> Result<()> {
[INFO] [stdout]     |                           ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/dalgen/go/mod.rs:455:34
[INFO] [stdout]     |
[INFO] [stdout] 455 | fn generate_nil_literal(wr: &mut io::Write, id: &ExprId, params: &CodegenParams) -> Result<()> {
[INFO] [stdout]     |                                  ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/dalgen/go/mod.rs:462:35
[INFO] [stdout]     |
[INFO] [stdout] 462 | fn generate_bool_literal(wr: &mut io::Write, id: &ExprId, b: bool, params: &CodegenParams) -> Result<()> {
[INFO] [stdout]     |                                   ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/dalgen/go/mod.rs:469:34
[INFO] [stdout]     |
[INFO] [stdout] 469 | fn generate_int_literal(wr: &mut io::Write, id: &ExprId, n: u64, params: &CodegenParams) -> Result<()> {
[INFO] [stdout]     |                                  ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/dalgen/go/mod.rs:476:36
[INFO] [stdout]     |
[INFO] [stdout] 476 | fn generate_float_literal(wr: &mut io::Write, id: &ExprId, x: f64, params: &CodegenParams) -> Result<()> {
[INFO] [stdout]     |                                    ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/dalgen/go/mod.rs:483:37
[INFO] [stdout]     |
[INFO] [stdout] 483 | fn generate_string_literal(wr: &mut io::Write, id: &ExprId, s: &str, params: &CodegenParams) -> Result<()> {
[INFO] [stdout]     |                                     ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/dalgen/go/mod.rs:490:27
[INFO] [stdout]     |
[INFO] [stdout] 490 | fn generate_load(wr: &mut io::Write, id: &ExprId, expr: &WkExpr, params: &CodegenParams) -> Result<()> {
[INFO] [stdout]     |                           ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/dalgen/go/mod.rs:500:29
[INFO] [stdout]     |
[INFO] [stdout] 500 | fn generate_ignore(wr: &mut io::Write, id: &ExprId, expr: &RcExpr, params: &CodegenParams) -> Result<()> {
[INFO] [stdout]     |                             ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/dalgen/go/mod.rs:508:31
[INFO] [stdout]     |
[INFO] [stdout] 508 | fn generate_sequence(wr: &mut io::Write, id: &ExprId, exprs: &[RcExpr], params: &CodegenParams) -> Result<()> {
[INFO] [stdout]     |                               ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/dalgen/go/mod.rs:527:18
[INFO] [stdout]     |
[INFO] [stdout] 527 |     wr:     &mut io::Write,
[INFO] [stdout]     |                  ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/dalgen/go/mod.rs:582:27
[INFO] [stdout]     |
[INFO] [stdout] 582 | fn write_expr_id(wr: &mut io::Write, id: &ExprId, params: &CodegenParams) -> io::Result<()> {
[INFO] [stdout]     |                           ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/dalgen/go/mod.rs:595:29
[INFO] [stdout]     |
[INFO] [stdout] 595 | fn write_expr_decl(wr: &mut io::Write, expr: &RcExpr, params: &CodegenParams) -> Result<()> {
[INFO] [stdout]     |                             ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/dalgen/mod.rs:143:27
[INFO] [stdout]     |
[INFO] [stdout] 143 | pub type WriterProvider = FnMut(&str) -> Result<Rc<RefCell<io::Write>>>;
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&str) -> Result<Rc<RefCell<io::Write>>>`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/dalgen/mod.rs:143:60
[INFO] [stdout]     |
[INFO] [stdout] 143 | pub type WriterProvider = FnMut(&str) -> Result<Rc<RefCell<io::Write>>>;
[INFO] [stdout]     |                                                            ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/error.rs:141:46
[INFO] [stdout]     |
[INFO] [stdout] 141 |             Error::IO(ref err)        => err.description(),
[INFO] [stdout]     |                                              ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/error.rs:142:46
[INFO] [stdout]     |
[INFO] [stdout] 142 |             Error::Borrow(ref err)    => err.description(),
[INFO] [stdout]     |                                              ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling quickcheck v0.4.1
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/error.rs:143:46
[INFO] [stdout]     |
[INFO] [stdout] 143 |             Error::BorrowMut(ref err) => err.description(),
[INFO] [stdout]     |                                              ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 38 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling phile v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `unicode_xid::UnicodeXID`
[INFO] [stdout]   --> tests/lexer.rs:50:5
[INFO] [stdout]    |
[INFO] [stdout] 50 | use unicode_xid::UnicodeXID;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> tests/lexer.rs:149:29
[INFO] [stdout]     |
[INFO] [stdout] 149 |     fn shrink(&self) -> Box<Iterator<Item=Self>> {
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=Self>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> tests/lexer.rs:209:29
[INFO] [stdout]     |
[INFO] [stdout] 209 |     fn shrink(&self) -> Box<Iterator<Item=Self>> {
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=Self>`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> tests/lexer.rs:243:29
[INFO] [stdout]     |
[INFO] [stdout] 243 |     fn shrink(&self) -> Box<Iterator<Item=Self>> {
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=Self>`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> tests/lexer.rs:311:29
[INFO] [stdout]     |
[INFO] [stdout] 311 |     fn shrink(&self) -> Box<Iterator<Item=Self>> {
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=Self>`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> tests/lexer.rs:378:29
[INFO] [stdout]     |
[INFO] [stdout] 378 |     fn shrink(&self) -> Box<Iterator<Item=Self>> {
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=Self>`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> tests/lexer.rs:494:27
[INFO] [stdout]     |
[INFO] [stdout] 494 |         let exponent: Box<Iterator<Item=char>> = if g.gen() {
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=char>`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> tests/lexer.rs:497:27
[INFO] [stdout]     |
[INFO] [stdout] 497 |             let sign: Box<Iterator<Item=char>> = if g.gen() {
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=char>`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> tests/lexer.rs:514:33
[INFO] [stdout]     |
[INFO] [stdout] 514 |     fn shrink_int(&self) -> Box<Iterator<Item=Self>> {
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=Self>`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> tests/lexer.rs:558:29
[INFO] [stdout]     |
[INFO] [stdout] 558 |     fn shrink(&self) -> Box<Iterator<Item=Self>> {
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=Self>`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> tests/lexer.rs:660:29
[INFO] [stdout]     |
[INFO] [stdout] 660 |     fn shrink(&self) -> Box<Iterator<Item=Self>> {
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=Self>`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> tests/parser.rs:1065:21
[INFO] [stdout]      |
[INFO] [stdout] 1065 | type RangeGen = Box<Fn(usize, std::ops::Range<usize>) -> Range>;
[INFO] [stdout]      |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(usize, std::ops::Range<usize>) -> Range`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]      = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]      = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> tests/parser.rs:1066:24
[INFO] [stdout]      |
[INFO] [stdout] 1066 | type EvalExpTest = Box<Fn(Vec<(&str, Exp)>) -> ()>;
[INFO] [stdout]      |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(Vec<(&str, Exp)>) -> ()`
[INFO] [stdout]      |
[INFO] [stdout]      = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]      = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> tests/parser.rs:1067:23
[INFO] [stdout]      |
[INFO] [stdout] 1067 | type EvalTyTest = Box<Fn(Vec<(&str, Ty)>) -> ()>;
[INFO] [stdout]      |                       ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(Vec<(&str, Ty)>) -> ()`
[INFO] [stdout]      |
[INFO] [stdout]      = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]      = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated trait `std::ascii::AsciiExt`: use inherent methods instead
[INFO] [stdout]   --> tests/lexer.rs:47:5
[INFO] [stdout]    |
[INFO] [stdout] 47 | use std::ascii::AsciiExt;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]    --> tests/lexer.rs:797:5
[INFO] [stdout]     |
[INFO] [stdout] 797 | /     lazy_static! {
[INFO] [stdout] 798 | |         static ref re: Regex = Regex::new(r"^[_\p{XID_Start}]$").unwrap();
[INFO] [stdout] 799 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `__lazy_static_create` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]    --> tests/lexer.rs:808:5
[INFO] [stdout]     |
[INFO] [stdout] 808 | /     lazy_static! {
[INFO] [stdout] 809 | |         static ref re: Regex = Regex::new(r"^\p{XID_Continue}$").unwrap();
[INFO] [stdout] 810 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `__lazy_static_create` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/error.rs:112:56
[INFO] [stdout]     |
[INFO] [stdout] 112 |     pub fn pretty_print<P: AsRef<str>>(&self, wr: &mut io::Write, sources: &[P]) -> io::Result<()> {
[INFO] [stdout]     |                                                        ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/error.rs:151:32
[INFO] [stdout]     |
[INFO] [stdout] 151 |     fn cause(&self) -> Option<&std::error::Error> {
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> tests/parser.rs:90:5
[INFO] [stdout]    |
[INFO] [stdout] 90 | /     lazy_static! {
[INFO] [stdout] 91 | |         static ref regex: Regex = Regex::new(r"^ *(\^_*\^) *$").unwrap();
[INFO] [stdout] 92 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `__lazy_static_create` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parser.rs:521:28
[INFO] [stdout]     |
[INFO] [stdout] 521 |         let node_ctors: &[&Fn(Box<Exp<'a>>) -> ExpKind] = &[
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(Box<Exp<'a>>) -> ExpKind`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/dalgen/go/mod.rs:112:92
[INFO] [stdout]     |
[INFO] [stdout] 112 |     fn writers_for_types<'b, I>(&mut self, types: I) -> Result<BTreeMap<String, Rc<RefCell<io::Write>>>>
[INFO] [stdout]     |                                                                                            ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/dalgen/go/mod.rs:130:73
[INFO] [stdout]     |
[INFO] [stdout] 130 |     fn writer_with_preamble(&mut self, name: &str) -> Result<Rc<RefCell<io::Write>>> {
[INFO] [stdout]     |                                                                         ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/dalgen/go/mod.rs:140:18
[INFO] [stdout]     |
[INFO] [stdout] 140 |         wr: &mut io::Write,
[INFO] [stdout]     |                  ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/dalgen/go/mod.rs:173:18
[INFO] [stdout]     |
[INFO] [stdout] 173 |         wr: &mut io::Write,
[INFO] [stdout]     |                  ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/dalgen/go/mod.rs:220:24
[INFO] [stdout]     |
[INFO] [stdout] 220 | fn write_type(wr: &mut io::Write, ty: &WkType, params: &CodegenParams) -> Result<()> {
[INFO] [stdout]     |                        ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/dalgen/go/mod.rs:251:33
[INFO] [stdout]     |
[INFO] [stdout] 251 | fn write_optional_type(wr: &mut io::Write, wrapped: &WkType, params: &CodegenParams) -> Result<()> {
[INFO] [stdout]     |                                 ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/dalgen/go/mod.rs:255:32
[INFO] [stdout]     |
[INFO] [stdout] 255 | fn write_pointer_type(wr: &mut io::Write, pointed: &WkType, params: &CodegenParams) -> Result<()> {
[INFO] [stdout]     |                                ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/dalgen/go/mod.rs:259:30
[INFO] [stdout]     |
[INFO] [stdout] 259 | fn write_array_type(wr: &mut io::Write, element: &WkType, params: &CodegenParams) -> Result<()> {
[INFO] [stdout]     |                              ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/dalgen/go/mod.rs:263:30
[INFO] [stdout]     |
[INFO] [stdout] 263 | fn write_tuple_type(wr: &mut io::Write, types: &[WkType], params: &CodegenParams) -> Result<()> {
[INFO] [stdout]     |                              ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/dalgen/go/mod.rs:275:33
[INFO] [stdout]     |
[INFO] [stdout] 275 | fn write_function_type(wr: &mut io::Write, ty: &FunctionType, params: &CodegenParams) -> Result<()> {
[INFO] [stdout]     |                                 ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/dalgen/go/mod.rs:292:26
[INFO] [stdout]     |
[INFO] [stdout] 292 | fn write_header(wr: &mut io::Write, params: &CodegenParams) -> Result<()> {
[INFO] [stdout]     |                          ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/dalgen/go/mod.rs:300:34
[INFO] [stdout]     |
[INFO] [stdout] 300 | fn write_comment_header(wr: &mut io::Write) -> io::Result<()> {
[INFO] [stdout]     |                                  ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/dalgen/go/mod.rs:310:29
[INFO] [stdout]     |
[INFO] [stdout] 310 | fn write_namespace(wr: &mut io::Write, params: &CodegenParams) -> Result<()> {
[INFO] [stdout]     |                             ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/dalgen/go/mod.rs:321:27
[INFO] [stdout]     |
[INFO] [stdout] 321 | fn write_imports(wr: &mut io::Write, params: &CodegenParams) -> io::Result<()> {
[INFO] [stdout]     |                           ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/dalgen/go/mod.rs:335:30
[INFO] [stdout]     |
[INFO] [stdout] 335 | fn write_dummy_uses(wr: &mut io::Write, params: &CodegenParams) -> io::Result<()> {
[INFO] [stdout]     |                              ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/dalgen/go/mod.rs:367:23
[INFO] [stdout]     |
[INFO] [stdout] 367 |                 '\x20'...'\x7e' => f.write_char(ch)?, // printable
[INFO] [stdout]     |                       ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> src/dalgen/go/mod.rs:368:27
[INFO] [stdout]     |
[INFO] [stdout] 368 |                 '\u{0000}'...'\u{ffff}' => write!(f, r"\u{:04x}", ch as u32)?,
[INFO] [stdout]     |                           ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/dalgen/go/mod.rs:403:18
[INFO] [stdout]     |
[INFO] [stdout] 403 |     wr:     &mut io::Write,
[INFO] [stdout]     |                  ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/dalgen/go/mod.rs:421:27
[INFO] [stdout]     |
[INFO] [stdout] 421 | fn generate_expr(wr: &mut io::Write, expr: &RcExpr, params: &CodegenParams) -> Result<()> {
[INFO] [stdout]     |                           ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/dalgen/go/mod.rs:455:34
[INFO] [stdout]     |
[INFO] [stdout] 455 | fn generate_nil_literal(wr: &mut io::Write, id: &ExprId, params: &CodegenParams) -> Result<()> {
[INFO] [stdout]     |                                  ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/dalgen/go/mod.rs:462:35
[INFO] [stdout]     |
[INFO] [stdout] 462 | fn generate_bool_literal(wr: &mut io::Write, id: &ExprId, b: bool, params: &CodegenParams) -> Result<()> {
[INFO] [stdout]     |                                   ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/dalgen/go/mod.rs:469:34
[INFO] [stdout]     |
[INFO] [stdout] 469 | fn generate_int_literal(wr: &mut io::Write, id: &ExprId, n: u64, params: &CodegenParams) -> Result<()> {
[INFO] [stdout]     |                                  ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/dalgen/go/mod.rs:476:36
[INFO] [stdout]     |
[INFO] [stdout] 476 | fn generate_float_literal(wr: &mut io::Write, id: &ExprId, x: f64, params: &CodegenParams) -> Result<()> {
[INFO] [stdout]     |                                    ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/dalgen/go/mod.rs:483:37
[INFO] [stdout]     |
[INFO] [stdout] 483 | fn generate_string_literal(wr: &mut io::Write, id: &ExprId, s: &str, params: &CodegenParams) -> Result<()> {
[INFO] [stdout]     |                                     ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/dalgen/go/mod.rs:490:27
[INFO] [stdout]     |
[INFO] [stdout] 490 | fn generate_load(wr: &mut io::Write, id: &ExprId, expr: &WkExpr, params: &CodegenParams) -> Result<()> {
[INFO] [stdout]     |                           ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/dalgen/go/mod.rs:500:29
[INFO] [stdout]     |
[INFO] [stdout] 500 | fn generate_ignore(wr: &mut io::Write, id: &ExprId, expr: &RcExpr, params: &CodegenParams) -> Result<()> {
[INFO] [stdout]     |                             ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/dalgen/go/mod.rs:508:31
[INFO] [stdout]     |
[INFO] [stdout] 508 | fn generate_sequence(wr: &mut io::Write, id: &ExprId, exprs: &[RcExpr], params: &CodegenParams) -> Result<()> {
[INFO] [stdout]     |                               ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/dalgen/go/mod.rs:527:18
[INFO] [stdout]     |
[INFO] [stdout] 527 |     wr:     &mut io::Write,
[INFO] [stdout]     |                  ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/dalgen/go/mod.rs:582:27
[INFO] [stdout]     |
[INFO] [stdout] 582 | fn write_expr_id(wr: &mut io::Write, id: &ExprId, params: &CodegenParams) -> io::Result<()> {
[INFO] [stdout]     |                           ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/dalgen/go/mod.rs:595:29
[INFO] [stdout]     |
[INFO] [stdout] 595 | fn write_expr_decl(wr: &mut io::Write, expr: &RcExpr, params: &CodegenParams) -> Result<()> {
[INFO] [stdout]     |                             ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/dalgen/mod.rs:143:27
[INFO] [stdout]     |
[INFO] [stdout] 143 | pub type WriterProvider = FnMut(&str) -> Result<Rc<RefCell<io::Write>>>;
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&str) -> Result<Rc<RefCell<io::Write>>>`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/dalgen/mod.rs:143:60
[INFO] [stdout]     |
[INFO] [stdout] 143 | pub type WriterProvider = FnMut(&str) -> Result<Rc<RefCell<io::Write>>>;
[INFO] [stdout]     |                                                            ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ascii::AsciiExt`
[INFO] [stdout]   --> tests/lexer.rs:47:5
[INFO] [stdout]    |
[INFO] [stdout] 47 | use std::ascii::AsciiExt;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/error.rs:141:46
[INFO] [stdout]     |
[INFO] [stdout] 141 |             Error::IO(ref err)        => err.description(),
[INFO] [stdout]     |                                              ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/error.rs:142:46
[INFO] [stdout]     |
[INFO] [stdout] 142 |             Error::Borrow(ref err)    => err.description(),
[INFO] [stdout]     |                                              ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/error.rs:143:46
[INFO] [stdout]     |
[INFO] [stdout] 143 |             Error::BorrowMut(ref err) => err.description(),
[INFO] [stdout]     |                                              ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `is_hor_ws`
[INFO] [stdout]    --> tests/lexer.rs:774:4
[INFO] [stdout]     |
[INFO] [stdout] 774 | fn is_hor_ws(ch: char) -> bool {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 38 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 16 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 5.05s
[INFO] running `Command { std: "docker" "inspect" "0bcd5ac7bedeebfa434c7e5c45a385bf24dd3b215c296e04ce6de693f40ffd5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0bcd5ac7bedeebfa434c7e5c45a385bf24dd3b215c296e04ce6de693f40ffd5b", kill_on_drop: false }`
[INFO] [stdout] 0bcd5ac7bedeebfa434c7e5c45a385bf24dd3b215c296e04ce6de693f40ffd5b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ebc11d3e55f92b3bae9f466d8da91776ae852f1d055c5932f2091a1cb59c3bdb
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "ebc11d3e55f92b3bae9f466d8da91776ae852f1d055c5932f2091a1cb59c3bdb", kill_on_drop: false }`
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/error.rs:112:56
[INFO] [stderr]     |
[INFO] [stderr] 112 |     pub fn pretty_print<P: AsRef<str>>(&self, wr: &mut io::Write, sources: &[P]) -> io::Result<()> {
[INFO] [stderr]     |                                                        ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/error.rs:151:32
[INFO] [stderr]     |
[INFO] [stderr] 151 |     fn cause(&self) -> Option<&std::error::Error> {
[INFO] [stderr]     |                                ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser.rs:521:28
[INFO] [stderr]     |
[INFO] [stderr] 521 |         let node_ctors: &[&Fn(Box<Exp<'a>>) -> ExpKind] = &[
[INFO] [stderr]     |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(Box<Exp<'a>>) -> ExpKind`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/dalgen/go/mod.rs:112:92
[INFO] [stderr]     |
[INFO] [stderr] 112 |     fn writers_for_types<'b, I>(&mut self, types: I) -> Result<BTreeMap<String, Rc<RefCell<io::Write>>>>
[INFO] [stderr]     |                                                                                            ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/dalgen/go/mod.rs:130:73
[INFO] [stderr]     |
[INFO] [stderr] 130 |     fn writer_with_preamble(&mut self, name: &str) -> Result<Rc<RefCell<io::Write>>> {
[INFO] [stderr]     |                                                                         ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/dalgen/go/mod.rs:140:18
[INFO] [stderr]     |
[INFO] [stderr] 140 |         wr: &mut io::Write,
[INFO] [stderr]     |                  ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/dalgen/go/mod.rs:173:18
[INFO] [stderr]     |
[INFO] [stderr] 173 |         wr: &mut io::Write,
[INFO] [stderr]     |                  ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/dalgen/go/mod.rs:220:24
[INFO] [stderr]     |
[INFO] [stderr] 220 | fn write_type(wr: &mut io::Write, ty: &WkType, params: &CodegenParams) -> Result<()> {
[INFO] [stderr]     |                        ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/dalgen/go/mod.rs:251:33
[INFO] [stderr]     |
[INFO] [stderr] 251 | fn write_optional_type(wr: &mut io::Write, wrapped: &WkType, params: &CodegenParams) -> Result<()> {
[INFO] [stderr]     |                                 ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/dalgen/go/mod.rs:255:32
[INFO] [stderr]     |
[INFO] [stderr] 255 | fn write_pointer_type(wr: &mut io::Write, pointed: &WkType, params: &CodegenParams) -> Result<()> {
[INFO] [stderr]     |                                ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/dalgen/go/mod.rs:259:30
[INFO] [stderr]     |
[INFO] [stderr] 259 | fn write_array_type(wr: &mut io::Write, element: &WkType, params: &CodegenParams) -> Result<()> {
[INFO] [stderr]     |                              ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/dalgen/go/mod.rs:263:30
[INFO] [stderr]     |
[INFO] [stderr] 263 | fn write_tuple_type(wr: &mut io::Write, types: &[WkType], params: &CodegenParams) -> Result<()> {
[INFO] [stderr]     |                              ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/dalgen/go/mod.rs:275:33
[INFO] [stderr]     |
[INFO] [stderr] 275 | fn write_function_type(wr: &mut io::Write, ty: &FunctionType, params: &CodegenParams) -> Result<()> {
[INFO] [stderr]     |                                 ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/dalgen/go/mod.rs:292:26
[INFO] [stderr]     |
[INFO] [stderr] 292 | fn write_header(wr: &mut io::Write, params: &CodegenParams) -> Result<()> {
[INFO] [stderr]     |                          ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/dalgen/go/mod.rs:300:34
[INFO] [stderr]     |
[INFO] [stderr] 300 | fn write_comment_header(wr: &mut io::Write) -> io::Result<()> {
[INFO] [stderr]     |                                  ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/dalgen/go/mod.rs:310:29
[INFO] [stderr]     |
[INFO] [stderr] 310 | fn write_namespace(wr: &mut io::Write, params: &CodegenParams) -> Result<()> {
[INFO] [stderr]     |                             ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/dalgen/go/mod.rs:321:27
[INFO] [stderr]     |
[INFO] [stderr] 321 | fn write_imports(wr: &mut io::Write, params: &CodegenParams) -> io::Result<()> {
[INFO] [stderr]     |                           ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/dalgen/go/mod.rs:335:30
[INFO] [stderr]     |
[INFO] [stderr] 335 | fn write_dummy_uses(wr: &mut io::Write, params: &CodegenParams) -> io::Result<()> {
[INFO] [stderr]     |                              ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/dalgen/go/mod.rs:367:23
[INFO] [stderr]     |
[INFO] [stderr] 367 |                 '\x20'...'\x7e' => f.write_char(ch)?, // printable
[INFO] [stderr]     |                       ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/dalgen/go/mod.rs:368:27
[INFO] [stderr]     |
[INFO] [stderr] 368 |                 '\u{0000}'...'\u{ffff}' => write!(f, r"\u{:04x}", ch as u32)?,
[INFO] [stderr]     |                           ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/dalgen/go/mod.rs:403:18
[INFO] [stderr]     |
[INFO] [stderr] 403 |     wr:     &mut io::Write,
[INFO] [stderr]     |                  ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/dalgen/go/mod.rs:421:27
[INFO] [stderr]     |
[INFO] [stderr] 421 | fn generate_expr(wr: &mut io::Write, expr: &RcExpr, params: &CodegenParams) -> Result<()> {
[INFO] [stderr]     |                           ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/dalgen/go/mod.rs:455:34
[INFO] [stderr]     |
[INFO] [stderr] 455 | fn generate_nil_literal(wr: &mut io::Write, id: &ExprId, params: &CodegenParams) -> Result<()> {
[INFO] [stderr]     |                                  ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/dalgen/go/mod.rs:462:35
[INFO] [stderr]     |
[INFO] [stderr] 462 | fn generate_bool_literal(wr: &mut io::Write, id: &ExprId, b: bool, params: &CodegenParams) -> Result<()> {
[INFO] [stderr]     |                                   ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/dalgen/go/mod.rs:469:34
[INFO] [stderr]     |
[INFO] [stderr] 469 | fn generate_int_literal(wr: &mut io::Write, id: &ExprId, n: u64, params: &CodegenParams) -> Result<()> {
[INFO] [stderr]     |                                  ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/dalgen/go/mod.rs:476:36
[INFO] [stderr]     |
[INFO] [stderr] 476 | fn generate_float_literal(wr: &mut io::Write, id: &ExprId, x: f64, params: &CodegenParams) -> Result<()> {
[INFO] [stderr]     |                                    ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/dalgen/go/mod.rs:483:37
[INFO] [stderr]     |
[INFO] [stderr] 483 | fn generate_string_literal(wr: &mut io::Write, id: &ExprId, s: &str, params: &CodegenParams) -> Result<()> {
[INFO] [stderr]     |                                     ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/dalgen/go/mod.rs:490:27
[INFO] [stderr]     |
[INFO] [stderr] 490 | fn generate_load(wr: &mut io::Write, id: &ExprId, expr: &WkExpr, params: &CodegenParams) -> Result<()> {
[INFO] [stderr]     |                           ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/dalgen/go/mod.rs:500:29
[INFO] [stderr]     |
[INFO] [stderr] 500 | fn generate_ignore(wr: &mut io::Write, id: &ExprId, expr: &RcExpr, params: &CodegenParams) -> Result<()> {
[INFO] [stderr]     |                             ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/dalgen/go/mod.rs:508:31
[INFO] [stderr]     |
[INFO] [stderr] 508 | fn generate_sequence(wr: &mut io::Write, id: &ExprId, exprs: &[RcExpr], params: &CodegenParams) -> Result<()> {
[INFO] [stderr]     |                               ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/dalgen/go/mod.rs:527:18
[INFO] [stderr]     |
[INFO] [stderr] 527 |     wr:     &mut io::Write,
[INFO] [stderr]     |                  ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/dalgen/go/mod.rs:582:27
[INFO] [stderr]     |
[INFO] [stderr] 582 | fn write_expr_id(wr: &mut io::Write, id: &ExprId, params: &CodegenParams) -> io::Result<()> {
[INFO] [stderr]     |                           ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/dalgen/go/mod.rs:595:29
[INFO] [stderr]     |
[INFO] [stderr] 595 | fn write_expr_decl(wr: &mut io::Write, expr: &RcExpr, params: &CodegenParams) -> Result<()> {
[INFO] [stderr]     |                             ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/dalgen/mod.rs:143:27
[INFO] [stderr]     |
[INFO] [stderr] 143 | pub type WriterProvider = FnMut(&str) -> Result<Rc<RefCell<io::Write>>>;
[INFO] [stderr]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&str) -> Result<Rc<RefCell<io::Write>>>`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/dalgen/mod.rs:143:60
[INFO] [stderr]     |
[INFO] [stderr] 143 | pub type WriterProvider = FnMut(&str) -> Result<Rc<RefCell<io::Write>>>;
[INFO] [stderr]     |                                                            ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]    --> src/error.rs:141:46
[INFO] [stderr]     |
[INFO] [stderr] 141 |             Error::IO(ref err)        => err.description(),
[INFO] [stderr]     |                                              ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]    --> src/error.rs:142:46
[INFO] [stderr]     |
[INFO] [stderr] 142 |             Error::Borrow(ref err)    => err.description(),
[INFO] [stderr]     |                                              ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]    --> src/error.rs:143:46
[INFO] [stderr]     |
[INFO] [stderr] 143 |             Error::BorrowMut(ref err) => err.description(),
[INFO] [stderr]     |                                              ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 38 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> tests/parser.rs:1065:21
[INFO] [stderr]      |
[INFO] [stderr] 1065 | type RangeGen = Box<Fn(usize, std::ops::Range<usize>) -> Range>;
[INFO] [stderr]      |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(usize, std::ops::Range<usize>) -> Range`
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr]      = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]      = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> tests/parser.rs:1066:24
[INFO] [stderr]      |
[INFO] [stderr] 1066 | type EvalExpTest = Box<Fn(Vec<(&str, Exp)>) -> ()>;
[INFO] [stderr]      |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(Vec<(&str, Exp)>) -> ()`
[INFO] [stderr]      |
[INFO] [stderr]      = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]      = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]     --> tests/parser.rs:1067:23
[INFO] [stderr]      |
[INFO] [stderr] 1067 | type EvalTyTest = Box<Fn(Vec<(&str, Ty)>) -> ()>;
[INFO] [stderr]      |                       ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(Vec<(&str, Ty)>) -> ()`
[INFO] [stderr]      |
[INFO] [stderr]      = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]      = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stderr]   --> tests/parser.rs:90:5
[INFO] [stderr]    |
[INFO] [stderr] 90 | /     lazy_static! {
[INFO] [stderr] 91 | |         static ref regex: Regex = Regex::new(r"^ *(\^_*\^) *$").unwrap();
[INFO] [stderr] 92 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]    = note: this warning originates in the macro `__lazy_static_create` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `unicode_xid::UnicodeXID`
[INFO] [stderr]   --> tests/lexer.rs:50:5
[INFO] [stderr]    |
[INFO] [stderr] 50 | use unicode_xid::UnicodeXID;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> tests/lexer.rs:149:29
[INFO] [stderr]     |
[INFO] [stderr] 149 |     fn shrink(&self) -> Box<Iterator<Item=Self>> {
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=Self>`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> tests/lexer.rs:209:29
[INFO] [stderr]     |
[INFO] [stderr] 209 |     fn shrink(&self) -> Box<Iterator<Item=Self>> {
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=Self>`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> tests/lexer.rs:243:29
[INFO] [stderr]     |
[INFO] [stderr] 243 |     fn shrink(&self) -> Box<Iterator<Item=Self>> {
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=Self>`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> tests/lexer.rs:311:29
[INFO] [stderr]     |
[INFO] [stderr] 311 |     fn shrink(&self) -> Box<Iterator<Item=Self>> {
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=Self>`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> tests/lexer.rs:378:29
[INFO] [stderr]     |
[INFO] [stderr] 378 |     fn shrink(&self) -> Box<Iterator<Item=Self>> {
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=Self>`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> tests/lexer.rs:494:27
[INFO] [stderr]     |
[INFO] [stderr] 494 |         let exponent: Box<Iterator<Item=char>> = if g.gen() {
[INFO] [stderr]     |                           ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=char>`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> tests/lexer.rs:497:27
[INFO] [stderr]     |
[INFO] [stderr] 497 |             let sign: Box<Iterator<Item=char>> = if g.gen() {
[INFO] [stderr]     |                           ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=char>`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> tests/lexer.rs:514:33
[INFO] [stderr]     |
[INFO] [stderr] 514 |     fn shrink_int(&self) -> Box<Iterator<Item=Self>> {
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=Self>`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> tests/lexer.rs:558:29
[INFO] [stderr]     |
[INFO] [stderr] 558 |     fn shrink(&self) -> Box<Iterator<Item=Self>> {
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=Self>`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> tests/lexer.rs:660:29
[INFO] [stderr]     |
[INFO] [stderr] 660 |     fn shrink(&self) -> Box<Iterator<Item=Self>> {
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=Self>`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated trait `std::ascii::AsciiExt`: use inherent methods instead
[INFO] [stderr]   --> tests/lexer.rs:47:5
[INFO] [stderr]    |
[INFO] [stderr] 47 | use std::ascii::AsciiExt;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stderr]    --> tests/lexer.rs:797:5
[INFO] [stderr]     |
[INFO] [stderr] 797 | /     lazy_static! {
[INFO] [stderr] 798 | |         static ref re: Regex = Regex::new(r"^[_\p{XID_Start}]$").unwrap();
[INFO] [stderr] 799 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in the macro `__lazy_static_create` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stderr]    --> tests/lexer.rs:808:5
[INFO] [stderr]     |
[INFO] [stderr] 808 | /     lazy_static! {
[INFO] [stderr] 809 | |         static ref re: Regex = Regex::new(r"^\p{XID_Continue}$").unwrap();
[INFO] [stderr] 810 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in the macro `__lazy_static_create` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::ascii::AsciiExt`
[INFO] [stderr]   --> tests/lexer.rs:47:5
[INFO] [stderr]    |
[INFO] [stderr] 47 | use std::ascii::AsciiExt;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `is_hor_ws`
[INFO] [stderr]    --> tests/lexer.rs:774:4
[INFO] [stderr]     |
[INFO] [stderr] 774 | fn is_hor_ws(ch: char) -> bool {
[INFO] [stderr]     |    ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 16 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/error.rs:112:56
[INFO] [stderr]     |
[INFO] [stderr] 112 |     pub fn pretty_print<P: AsRef<str>>(&self, wr: &mut io::Write, sources: &[P]) -> io::Result<()> {
[INFO] [stderr]     |                                                        ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/error.rs:151:32
[INFO] [stderr]     |
[INFO] [stderr] 151 |     fn cause(&self) -> Option<&std::error::Error> {
[INFO] [stderr]     |                                ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/parser.rs:521:28
[INFO] [stderr]     |
[INFO] [stderr] 521 |         let node_ctors: &[&Fn(Box<Exp<'a>>) -> ExpKind] = &[
[INFO] [stderr]     |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(Box<Exp<'a>>) -> ExpKind`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/dalgen/go/mod.rs:112:92
[INFO] [stderr]     |
[INFO] [stderr] 112 |     fn writers_for_types<'b, I>(&mut self, types: I) -> Result<BTreeMap<String, Rc<RefCell<io::Write>>>>
[INFO] [stderr]     |                                                                                            ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/dalgen/go/mod.rs:130:73
[INFO] [stderr]     |
[INFO] [stderr] 130 |     fn writer_with_preamble(&mut self, name: &str) -> Result<Rc<RefCell<io::Write>>> {
[INFO] [stderr]     |                                                                         ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/dalgen/go/mod.rs:140:18
[INFO] [stderr]     |
[INFO] [stderr] 140 |         wr: &mut io::Write,
[INFO] [stderr]     |                  ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/dalgen/go/mod.rs:173:18
[INFO] [stderr]     |
[INFO] [stderr] 173 |         wr: &mut io::Write,
[INFO] [stderr]     |                  ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/dalgen/go/mod.rs:220:24
[INFO] [stderr]     |
[INFO] [stderr] 220 | fn write_type(wr: &mut io::Write, ty: &WkType, params: &CodegenParams) -> Result<()> {
[INFO] [stderr]     |                        ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/dalgen/go/mod.rs:251:33
[INFO] [stderr]     |
[INFO] [stderr] 251 | fn write_optional_type(wr: &mut io::Write, wrapped: &WkType, params: &CodegenParams) -> Result<()> {
[INFO] [stderr]     |                                 ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/dalgen/go/mod.rs:255:32
[INFO] [stderr]     |
[INFO] [stderr] 255 | fn write_pointer_type(wr: &mut io::Write, pointed: &WkType, params: &CodegenParams) -> Result<()> {
[INFO] [stderr]     |                                ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/dalgen/go/mod.rs:259:30
[INFO] [stderr]     |
[INFO] [stderr] 259 | fn write_array_type(wr: &mut io::Write, element: &WkType, params: &CodegenParams) -> Result<()> {
[INFO] [stderr]     |                              ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/dalgen/go/mod.rs:263:30
[INFO] [stderr]     |
[INFO] [stderr] 263 | fn write_tuple_type(wr: &mut io::Write, types: &[WkType], params: &CodegenParams) -> Result<()> {
[INFO] [stderr]     |                              ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/dalgen/go/mod.rs:275:33
[INFO] [stderr]     |
[INFO] [stderr] 275 | fn write_function_type(wr: &mut io::Write, ty: &FunctionType, params: &CodegenParams) -> Result<()> {
[INFO] [stderr]     |                                 ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/dalgen/go/mod.rs:292:26
[INFO] [stderr]     |
[INFO] [stderr] 292 | fn write_header(wr: &mut io::Write, params: &CodegenParams) -> Result<()> {
[INFO] [stderr]     |                          ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/dalgen/go/mod.rs:300:34
[INFO] [stderr]     |
[INFO] [stderr] 300 | fn write_comment_header(wr: &mut io::Write) -> io::Result<()> {
[INFO] [stderr]     |                                  ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/dalgen/go/mod.rs:310:29
[INFO] [stderr]     |
[INFO] [stderr] 310 | fn write_namespace(wr: &mut io::Write, params: &CodegenParams) -> Result<()> {
[INFO] [stderr]     |                             ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/dalgen/go/mod.rs:321:27
[INFO] [stderr]     |
[INFO] [stderr] 321 | fn write_imports(wr: &mut io::Write, params: &CodegenParams) -> io::Result<()> {
[INFO] [stderr]     |                           ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/dalgen/go/mod.rs:335:30
[INFO] [stderr]     |
[INFO] [stderr] 335 | fn write_dummy_uses(wr: &mut io::Write, params: &CodegenParams) -> io::Result<()> {
[INFO] [stderr]     |                              ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/dalgen/go/mod.rs:367:23
[INFO] [stderr]     |
[INFO] [stderr] 367 |                 '\x20'...'\x7e' => f.write_char(ch)?, // printable
[INFO] [stderr]     |                       ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/dalgen/go/mod.rs:368:27
[INFO] [stderr]     |
[INFO] [stderr] 368 |                 '\u{0000}'...'\u{ffff}' => write!(f, r"\u{:04x}", ch as u32)?,
[INFO] [stderr]     |                           ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/dalgen/go/mod.rs:403:18
[INFO] [stderr]     |
[INFO] [stderr] 403 |     wr:     &mut io::Write,
[INFO] [stderr]     |                  ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/dalgen/go/mod.rs:421:27
[INFO] [stderr]     |
[INFO] [stderr] 421 | fn generate_expr(wr: &mut io::Write, expr: &RcExpr, params: &CodegenParams) -> Result<()> {
[INFO] [stderr]     |                           ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/dalgen/go/mod.rs:455:34
[INFO] [stderr]     |
[INFO] [stderr] 455 | fn generate_nil_literal(wr: &mut io::Write, id: &ExprId, params: &CodegenParams) -> Result<()> {
[INFO] [stderr]     |                                  ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/dalgen/go/mod.rs:462:35
[INFO] [stderr]     |
[INFO] [stderr] 462 | fn generate_bool_literal(wr: &mut io::Write, id: &ExprId, b: bool, params: &CodegenParams) -> Result<()> {
[INFO] [stderr]     |                                   ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/dalgen/go/mod.rs:469:34
[INFO] [stderr]     |
[INFO] [stderr] 469 | fn generate_int_literal(wr: &mut io::Write, id: &ExprId, n: u64, params: &CodegenParams) -> Result<()> {
[INFO] [stderr]     |                                  ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/dalgen/go/mod.rs:476:36
[INFO] [stderr]     |
[INFO] [stderr] 476 | fn generate_float_literal(wr: &mut io::Write, id: &ExprId, x: f64, params: &CodegenParams) -> Result<()> {
[INFO] [stderr]     |                                    ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/dalgen/go/mod.rs:483:37
[INFO] [stderr]     |
[INFO] [stderr] 483 | fn generate_string_literal(wr: &mut io::Write, id: &ExprId, s: &str, params: &CodegenParams) -> Result<()> {
[INFO] [stderr]     |                                     ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/dalgen/go/mod.rs:490:27
[INFO] [stderr]     |
[INFO] [stderr] 490 | fn generate_load(wr: &mut io::Write, id: &ExprId, expr: &WkExpr, params: &CodegenParams) -> Result<()> {
[INFO] [stderr]     |                           ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/dalgen/go/mod.rs:500:29
[INFO] [stderr]     |
[INFO] [stderr] 500 | fn generate_ignore(wr: &mut io::Write, id: &ExprId, expr: &RcExpr, params: &CodegenParams) -> Result<()> {
[INFO] [stderr]     |                             ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/dalgen/go/mod.rs:508:31
[INFO] [stderr]     |
[INFO] [stderr] 508 | fn generate_sequence(wr: &mut io::Write, id: &ExprId, exprs: &[RcExpr], params: &CodegenParams) -> Result<()> {
[INFO] [stderr]     |                               ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/dalgen/go/mod.rs:527:18
[INFO] [stderr]     |
[INFO] [stderr] 527 |     wr:     &mut io::Write,
[INFO] [stderr]     |                  ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/dalgen/go/mod.rs:582:27
[INFO] [stderr]     |
[INFO] [stderr] 582 | fn write_expr_id(wr: &mut io::Write, id: &ExprId, params: &CodegenParams) -> io::Result<()> {
[INFO] [stderr]     |                           ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/dalgen/go/mod.rs:595:29
[INFO] [stderr]     |
[INFO] [stderr] 595 | fn write_expr_decl(wr: &mut io::Write, expr: &RcExpr, params: &CodegenParams) -> Result<()> {
[INFO] [stderr]     |                             ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/dalgen/mod.rs:143:27
[INFO] [stderr]     |
[INFO] [stderr] 143 | pub type WriterProvider = FnMut(&str) -> Result<Rc<RefCell<io::Write>>>;
[INFO] [stderr]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(&str) -> Result<Rc<RefCell<io::Write>>>`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/dalgen/mod.rs:143:60
[INFO] [stderr]     |
[INFO] [stderr] 143 | pub type WriterProvider = FnMut(&str) -> Result<Rc<RefCell<io::Write>>>;
[INFO] [stderr]     |                                                            ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]    --> src/error.rs:141:46
[INFO] [stderr]     |
[INFO] [stderr] 141 |             Error::IO(ref err)        => err.description(),
[INFO] [stderr]     |                                              ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]    --> src/error.rs:142:46
[INFO] [stderr]     |
[INFO] [stderr] 142 |             Error::Borrow(ref err)    => err.description(),
[INFO] [stderr]     |                                              ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]    --> src/error.rs:143:46
[INFO] [stderr]     |
[INFO] [stderr] 143 |             Error::BorrowMut(ref err) => err.description(),
[INFO] [stderr]     |                                              ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 38 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/phile-784d2e1b6ef16933)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/lexer.rs (/opt/rustwide/target/debug/deps/lexer-e3bba1097b7d1135)
[INFO] [stdout] 
[INFO] [stdout] running 30 tests
[INFO] [stdout] test shrink_valid_string_items ... ok
[INFO] [stdout] test shrink_valid_whitespace_items ... ok
[INFO] [stdout] test shrink_valid_number_items ... ok
[INFO] [stdout] test shrink_valid_line_comment_items ... ok
[INFO] [stdout] test shrink_valid_punctuation ... ok
[INFO] [stdout] test shrink_valid_source ... ok
[INFO] [stdout] test shrink_valid_whitespace_size ... ok
[INFO] [stdout] test multiple_empty_sources ... ok
[INFO] [stdout] test shrink_valid_word_items ... ok
[INFO] [stdout] test shrink_valid_string_size ... ok
[INFO] [stdout] test single_empty_source ... ok
[INFO] [stdout] test shrink_valid_line_comment_size ... ok
[INFO] [stdout] test unicode_digit_is_not_numeric ... ok
[INFO] [stdout] test no_sources ... ok
[INFO] [stdout] test windows_newline_in_comment ... ok
[INFO] [stdout] test identifier_with_inner_unicode_digit ... ok
[INFO] [stdout] test shrink_valid_word_size ... ok
[INFO] [stdout] test ascii_digit_is_numeric ... ok
[INFO] [stdout] test valid_string ... ok
[INFO] [stdout] test invalid_source ... ok
[INFO] [stdout] test all_valid_punctuation ... ok
[INFO] [stdout] test valid_punct ... ok
[INFO] [stdout] test valid_line_comment ... ok
[INFO] [stdout] test interesting_valid_sources ... ok
[INFO] [stdout] test any_valid_token ... ok
[INFO] [stdout] test valid_number ... ok
[INFO] [stdout] test random_sources ... ok
[INFO] [stdout] test valid_whitespace ... ok
[INFO] [stdout] test valid_word ... ok
[INFO] [stdout] test valid_source ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 30 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 16.15s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/parser.rs (/opt/rustwide/target/debug/deps/parser-fbf8a7ff5ad8a325)
[INFO] [stdout] 
[INFO] [stdout] running 54 tests
[INFO] [stdout] test empty_source ... ok
[INFO] [stdout] test invalid_atomic_expression ... ok
[INFO] [stdout] test invalid_atomic_type ... ok
[INFO] [stdout] test invalid_conditional_expression ... ok
[INFO] [stdout] test invalid_array_expression ... ok
[INFO] [stdout] test invalid_cast_expression ... ok
[INFO] [stdout] test invalid_block_expression ... ok
[INFO] [stdout] test invalid_postfix_type ... ok
[INFO] [stdout] test invalid_prefix_type ... ok
[INFO] [stdout] test invalid_binary_expression ... ok
[INFO] [stdout] test statement_position_and_multiline_range ... ok
[INFO] [stdout] test invalid_prefix_expression ... ok
[INFO] [stdout] test invalid_array_type ... ok
[INFO] [stdout] test valid_additive_expression ... ok
[INFO] [stdout] test valid_and_expression ... ok
[INFO] [stdout] test invalid_function_type ... ok
[INFO] [stdout] test invalid_impl_def ... ok
[INFO] [stdout] test valid_cast_expression ... ok
[INFO] [stdout] test invalid_fn_def ... ok
[INFO] [stdout] test valid_closure ... ok
[INFO] [stdout] test invalid_tuple_type ... ok
[INFO] [stdout] test valid_array_type ... ok
[INFO] [stdout] test invalid_tuple_expression ... ok
[INFO] [stdout] test invalid_if_expression ... ok
[INFO] [stdout] test valid_function_call ... ok
[INFO] [stdout] test invalid_call_expression ... ok
[INFO] [stdout] test valid_comparison_expression ... ok
[INFO] [stdout] test valid_atomic_expression ... ok
[INFO] [stdout] test valid_conditional_expression ... ok
[INFO] [stdout] test valid_if_expression ... ok
[INFO] [stdout] test valid_comparison_expression_noassoc ... ok
[INFO] [stdout] test valid_enum_decl ... ok
[INFO] [stdout] test invalid_function_expression ... ok
[INFO] [stdout] test valid_function_type ... ok
[INFO] [stdout] test valid_impl_def ... ok
[INFO] [stdout] test valid_multiplicative_expression ... ok
[INFO] [stdout] test valid_non_atomic_term ... ok
[INFO] [stdout] test valid_member_access ... ok
[INFO] [stdout] test valid_postfix_type ... ok
[INFO] [stdout] test valid_named_type ... ok
[INFO] [stdout] test valid_prefix_expression ... ok
[INFO] [stdout] test valid_or_expression ... ok
[INFO] [stdout] test invalid_enum_decl ... ok
[INFO] [stdout] test valid_range_expression ... ok
[INFO] [stdout] test valid_prefix_type ... ok
[INFO] [stdout] test valid_struct_or_class_decl ... ok
[INFO] [stdout] test valid_variable_decl ... ok
[INFO] [stdout] test valid_subscript ... ok
[INFO] [stdout] test valid_tuple_type ... ok
[INFO] [stdout] test invalid_subscript_expression ... ok
[INFO] [stdout] test invalid_toplevel ... ok
[INFO] [stdout] test invalid_member_access_expression ... ok
[INFO] [stdout] test invalid_struct_or_class_decl ... ok
[INFO] [stdout] test valid_fn_def ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 54 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 41.23s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests phile
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> /opt/rustwide/workdir/src/dalgen/go/mod.rs:367:23
[INFO] [stderr]     |
[INFO] [stderr] 367 |                 '\x20'...'\x7e' => f.write_char(ch)?, // printable
[INFO] [stderr]     |                       ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> /opt/rustwide/workdir/src/dalgen/go/mod.rs:368:27
[INFO] [stderr]     |
[INFO] [stderr] 368 |                 '\u{0000}'...'\u{ffff}' => write!(f, r"\u{:04x}", ch as u32)?,
[INFO] [stderr]     |                           ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stdout] running 0 tests
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ebc11d3e55f92b3bae9f466d8da91776ae852f1d055c5932f2091a1cb59c3bdb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ebc11d3e55f92b3bae9f466d8da91776ae852f1d055c5932f2091a1cb59c3bdb", kill_on_drop: false }`
[INFO] [stdout] ebc11d3e55f92b3bae9f466d8da91776ae852f1d055c5932f2091a1cb59c3bdb
