[INFO] fetching crate lavish-compiler 0.4.0...
[INFO] testing lavish-compiler-0.4.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate lavish-compiler 0.4.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate lavish-compiler 0.4.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate lavish-compiler 0.4.0
[INFO] finished tweaking crates.io crate lavish-compiler 0.4.0
[INFO] tweaked toml for crates.io crate lavish-compiler 0.4.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded netbuf v0.4.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", 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] b2b64dcc35a6a311bf55f4229b46cbc744b30ee598f526c6ec31eee193dcbd51
[INFO] running `Command { std: "docker" "start" "-a" "b2b64dcc35a6a311bf55f4229b46cbc744b30ee598f526c6ec31eee193dcbd51", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b2b64dcc35a6a311bf55f4229b46cbc744b30ee598f526c6ec31eee193dcbd51", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2b64dcc35a6a311bf55f4229b46cbc744b30ee598f526c6ec31eee193dcbd51", kill_on_drop: false }`
[INFO] [stdout] b2b64dcc35a6a311bf55f4229b46cbc744b30ee598f526c6ec31eee193dcbd51
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "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] ea35dfa5459439a2d564e54875b3bca9c198662d2adb5b792cd57030febf0a13
[INFO] running `Command { std: "docker" "start" "-a" "ea35dfa5459439a2d564e54875b3bca9c198662d2adb5b792cd57030febf0a13", kill_on_drop: false }`
[INFO] [stderr]    Compiling simple-error v0.2.3
[INFO] [stderr]    Compiling colored v1.9.3
[INFO] [stderr]    Compiling env_logger v0.6.2
[INFO] [stderr]    Compiling lavish-compiler v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/ast/anchored.rs:89:32
[INFO] [stdout]    |
[INFO] [stdout] 89 |     pub(crate) frames: Vec<&'a Frame>,
[INFO] [stdout]    |                                ^^^^^ help: use `dyn`: `dyn Frame`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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/ast/anchored.rs:94:27
[INFO] [stdout]    |
[INFO] [stdout] 94 |     pub fn new(frame: &'a Frame) -> Self {
[INFO] [stdout]    |                           ^^^^^ help: use `dyn`: `dyn Frame`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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/ast/anchored.rs:100:35
[INFO] [stdout]     |
[INFO] [stdout] 100 |     pub fn push(&self, frame: &'a Frame) -> Self {
[INFO] [stdout]     |                                   ^^^^^ help: use `dyn`: `dyn Frame`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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/ast/anchored.rs:274:41
[INFO] [stdout]     |
[INFO] [stdout] 274 |     pub fn for_each_fun(&self, cb: &mut FnMut(Anchored<&FunctionDecl>)) {
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(Anchored<&FunctionDecl>)`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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/ast/anchored.rs:280:44
[INFO] [stdout]     |
[INFO] [stdout] 280 |     pub fn for_each_struct(&self, cb: &mut FnMut(Anchored<&StructDecl>)) {
[INFO] [stdout]     |                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(Anchored<&StructDecl>)`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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/ast/anchored.rs:286:42
[INFO] [stdout]     |
[INFO] [stdout] 286 |     pub fn for_each_enum(&self, cb: &mut FnMut(Anchored<&EnumDecl>)) {
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(Anchored<&EnumDecl>)`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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/ast/anchored.rs:292:47
[INFO] [stdout]     |
[INFO] [stdout] 292 |     pub fn for_each_namespace(&self, cb: &mut FnMut(Anchored<&NamespaceBody>)) {
[INFO] [stdout]     |                                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(Anchored<&NamespaceBody>)`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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/ast/anchored.rs:298:51
[INFO] [stdout]     |
[INFO] [stdout] 298 |     pub fn for_each_fun_of_schema(&self, cb: &mut FnMut(Anchored<&FunctionDecl>)) {
[INFO] [stdout]     |                                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(Anchored<&FunctionDecl>)`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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/ast/anchored.rs:306:54
[INFO] [stdout]     |
[INFO] [stdout] 306 |     pub fn for_each_struct_of_schema(&self, cb: &mut FnMut(Anchored<&StructDecl>)) {
[INFO] [stdout]     |                                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(Anchored<&StructDecl>)`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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/ast/anchored.rs:316:52
[INFO] [stdout]     |
[INFO] [stdout] 316 |     pub fn for_each_enum_of_schema(&self, cb: &mut FnMut(Anchored<&EnumDecl>)) {
[INFO] [stdout]     |                                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(Anchored<&EnumDecl>)`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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/ast/anchored.rs:332:51
[INFO] [stdout]     |
[INFO] [stdout] 332 |     pub fn for_each_fun_of_schema(&self, cb: &mut FnMut(Anchored<&FunctionDecl>)) {
[INFO] [stdout]     |                                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(Anchored<&FunctionDecl>)`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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/ast/anchored.rs:341:54
[INFO] [stdout]     |
[INFO] [stdout] 341 |     pub fn for_each_struct_of_schema(&self, cb: &mut FnMut(Anchored<&StructDecl>)) {
[INFO] [stdout]     |                                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(Anchored<&StructDecl>)`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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/ast/anchored.rs:350:52
[INFO] [stdout]     |
[INFO] [stdout] 350 |     pub fn for_each_enum_of_schema(&self, cb: &mut FnMut(Anchored<&EnumDecl>)) {
[INFO] [stdout]     |                                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(Anchored<&EnumDecl>)`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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/codegen/output.rs:35:21
[INFO] [stdout]    |
[INFO] [stdout] 35 |     writer: &'a mut fmt::Write,
[INFO] [stdout]    |                     ^^^^^^^^^^ help: use `dyn`: `dyn fmt::Write`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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/codegen/output.rs:47:32
[INFO] [stdout]    |
[INFO] [stdout] 47 |     pub fn new(writer: &'a mut fmt::Write) -> Self {
[INFO] [stdout]    |                                ^^^^^^^^^^ help: use `dyn`: `dyn fmt::Write`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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/codegen/output.rs:120:35
[INFO] [stdout]     |
[INFO] [stdout] 120 |     pub fn fmt<F>(writer: &'a mut fmt::Write, f: F) -> std::fmt::Result
[INFO] [stdout]     |                                   ^^^^^^^^^^ help: use `dyn`: `dyn fmt::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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/codegen/rust/ir/lang.rs:45:22
[INFO] [stdout]    |
[INFO] [stdout] 45 |     body: Option<Box<Fn(&mut Scope) + 'a>>,
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut Scope) + 'a`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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/codegen/rust/ir/lang.rs:193:22
[INFO] [stdout]     |
[INFO] [stdout] 193 |     body: Option<Box<Fn(&mut Scope) + 'a>>,
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut Scope) + 'a`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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/codegen/rust/ir/protocol.rs:193:37
[INFO] [stdout]     |
[INFO] [stdout] 193 |     fn for_each_fun(&self, cb: &mut FnMut(ast::Anchored<&ast::FunctionDecl>)) {
[INFO] [stdout]     |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(ast::Anchored<&ast::FunctionDecl>)`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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/codegen/rust/ir/types.rs:5:64
[INFO] [stdout]   |
[INFO] [stdout] 5 |     fn as_rust<'a>(&'a self, stack: &'a ast::Stack<'a>) -> Box<fmt::Display + 'a>;
[INFO] [stdout]   |                                                                ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn fmt::Display + 'a`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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/codegen/rust/ir/types.rs:11:64
[INFO] [stdout]    |
[INFO] [stdout] 11 |     fn as_rust<'a>(&'a self, stack: &'a ast::Stack<'a>) -> Box<fmt::Display + 'a> {
[INFO] [stdout]    |                                                                ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn fmt::Display + 'a`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 21 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.96s
[INFO] running `Command { std: "docker" "inspect" "ea35dfa5459439a2d564e54875b3bca9c198662d2adb5b792cd57030febf0a13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea35dfa5459439a2d564e54875b3bca9c198662d2adb5b792cd57030febf0a13", kill_on_drop: false }`
[INFO] [stdout] ea35dfa5459439a2d564e54875b3bca9c198662d2adb5b792cd57030febf0a13
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e5c55e51779319ae1a760c9c090f479de1ccb5a1c93a656d4a7d4c3e74ae938d
[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" "e5c55e51779319ae1a760c9c090f479de1ccb5a1c93a656d4a7d4c3e74ae938d", kill_on_drop: false }`
[INFO] [stderr]    Compiling netbuf v0.4.1
[INFO] [stderr]    Compiling vte_generate_state_changes v0.1.1
[INFO] [stderr]    Compiling vte v0.10.1
[INFO] [stderr]    Compiling strip-ansi-escapes v0.1.1
[INFO] [stderr]    Compiling lavish-compiler v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/ast/anchored.rs:89:32
[INFO] [stdout]    |
[INFO] [stdout] 89 |     pub(crate) frames: Vec<&'a Frame>,
[INFO] [stdout]    |                                ^^^^^ help: use `dyn`: `dyn Frame`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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/ast/anchored.rs:94:27
[INFO] [stdout]    |
[INFO] [stdout] 94 |     pub fn new(frame: &'a Frame) -> Self {
[INFO] [stdout]    |                           ^^^^^ help: use `dyn`: `dyn Frame`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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/ast/anchored.rs:100:35
[INFO] [stdout]     |
[INFO] [stdout] 100 |     pub fn push(&self, frame: &'a Frame) -> Self {
[INFO] [stdout]     |                                   ^^^^^ help: use `dyn`: `dyn Frame`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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/ast/anchored.rs:274:41
[INFO] [stdout]     |
[INFO] [stdout] 274 |     pub fn for_each_fun(&self, cb: &mut FnMut(Anchored<&FunctionDecl>)) {
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(Anchored<&FunctionDecl>)`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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/ast/anchored.rs:280:44
[INFO] [stdout]     |
[INFO] [stdout] 280 |     pub fn for_each_struct(&self, cb: &mut FnMut(Anchored<&StructDecl>)) {
[INFO] [stdout]     |                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(Anchored<&StructDecl>)`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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/ast/anchored.rs:286:42
[INFO] [stdout]     |
[INFO] [stdout] 286 |     pub fn for_each_enum(&self, cb: &mut FnMut(Anchored<&EnumDecl>)) {
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(Anchored<&EnumDecl>)`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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/ast/anchored.rs:292:47
[INFO] [stdout]     |
[INFO] [stdout] 292 |     pub fn for_each_namespace(&self, cb: &mut FnMut(Anchored<&NamespaceBody>)) {
[INFO] [stdout]     |                                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(Anchored<&NamespaceBody>)`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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/ast/anchored.rs:298:51
[INFO] [stdout]     |
[INFO] [stdout] 298 |     pub fn for_each_fun_of_schema(&self, cb: &mut FnMut(Anchored<&FunctionDecl>)) {
[INFO] [stdout]     |                                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(Anchored<&FunctionDecl>)`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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/ast/anchored.rs:306:54
[INFO] [stdout]     |
[INFO] [stdout] 306 |     pub fn for_each_struct_of_schema(&self, cb: &mut FnMut(Anchored<&StructDecl>)) {
[INFO] [stdout]     |                                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(Anchored<&StructDecl>)`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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/ast/anchored.rs:316:52
[INFO] [stdout]     |
[INFO] [stdout] 316 |     pub fn for_each_enum_of_schema(&self, cb: &mut FnMut(Anchored<&EnumDecl>)) {
[INFO] [stdout]     |                                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(Anchored<&EnumDecl>)`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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/ast/anchored.rs:332:51
[INFO] [stdout]     |
[INFO] [stdout] 332 |     pub fn for_each_fun_of_schema(&self, cb: &mut FnMut(Anchored<&FunctionDecl>)) {
[INFO] [stdout]     |                                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(Anchored<&FunctionDecl>)`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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/ast/anchored.rs:341:54
[INFO] [stdout]     |
[INFO] [stdout] 341 |     pub fn for_each_struct_of_schema(&self, cb: &mut FnMut(Anchored<&StructDecl>)) {
[INFO] [stdout]     |                                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(Anchored<&StructDecl>)`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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/ast/anchored.rs:350:52
[INFO] [stdout]     |
[INFO] [stdout] 350 |     pub fn for_each_enum_of_schema(&self, cb: &mut FnMut(Anchored<&EnumDecl>)) {
[INFO] [stdout]     |                                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(Anchored<&EnumDecl>)`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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/codegen/output.rs:35:21
[INFO] [stdout]    |
[INFO] [stdout] 35 |     writer: &'a mut fmt::Write,
[INFO] [stdout]    |                     ^^^^^^^^^^ help: use `dyn`: `dyn fmt::Write`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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/codegen/output.rs:47:32
[INFO] [stdout]    |
[INFO] [stdout] 47 |     pub fn new(writer: &'a mut fmt::Write) -> Self {
[INFO] [stdout]    |                                ^^^^^^^^^^ help: use `dyn`: `dyn fmt::Write`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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/codegen/output.rs:120:35
[INFO] [stdout]     |
[INFO] [stdout] 120 |     pub fn fmt<F>(writer: &'a mut fmt::Write, f: F) -> std::fmt::Result
[INFO] [stdout]     |                                   ^^^^^^^^^^ help: use `dyn`: `dyn fmt::Write`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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/codegen/rust/ir/lang.rs:45:22
[INFO] [stdout]    |
[INFO] [stdout] 45 |     body: Option<Box<Fn(&mut Scope) + 'a>>,
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut Scope) + 'a`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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/codegen/rust/ir/lang.rs:193:22
[INFO] [stdout]     |
[INFO] [stdout] 193 |     body: Option<Box<Fn(&mut Scope) + 'a>>,
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut Scope) + 'a`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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/codegen/rust/ir/protocol.rs:193:37
[INFO] [stdout]     |
[INFO] [stdout] 193 |     fn for_each_fun(&self, cb: &mut FnMut(ast::Anchored<&ast::FunctionDecl>)) {
[INFO] [stdout]     |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(ast::Anchored<&ast::FunctionDecl>)`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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/codegen/rust/ir/types.rs:5:64
[INFO] [stdout]   |
[INFO] [stdout] 5 |     fn as_rust<'a>(&'a self, stack: &'a ast::Stack<'a>) -> Box<fmt::Display + 'a>;
[INFO] [stdout]   |                                                                ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn fmt::Display + 'a`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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/codegen/rust/ir/types.rs:11:64
[INFO] [stdout]    |
[INFO] [stdout] 11 |     fn as_rust<'a>(&'a self, stack: &'a ast::Stack<'a>) -> Box<fmt::Display + 'a> {
[INFO] [stdout]    |                                                                ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn fmt::Display + 'a`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 21 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 5.12s
[INFO] running `Command { std: "docker" "inspect" "e5c55e51779319ae1a760c9c090f479de1ccb5a1c93a656d4a7d4c3e74ae938d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e5c55e51779319ae1a760c9c090f479de1ccb5a1c93a656d4a7d4c3e74ae938d", kill_on_drop: false }`
[INFO] [stdout] e5c55e51779319ae1a760c9c090f479de1ccb5a1c93a656d4a7d4c3e74ae938d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", 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] 9508203f59a9eb642eb15690dd617ffe0ed8918d85aafa5b026514cf0c00becf
[INFO] running `Command { std: "docker" "start" "-a" "9508203f59a9eb642eb15690dd617ffe0ed8918d85aafa5b026514cf0c00becf", kill_on_drop: false }`
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ast/anchored.rs:89:32
[INFO] [stderr]    |
[INFO] [stderr] 89 |     pub(crate) frames: Vec<&'a Frame>,
[INFO] [stderr]    |                                ^^^^^ help: use `dyn`: `dyn Frame`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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/ast/anchored.rs:94:27
[INFO] [stderr]    |
[INFO] [stderr] 94 |     pub fn new(frame: &'a Frame) -> Self {
[INFO] [stderr]    |                           ^^^^^ help: use `dyn`: `dyn Frame`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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/ast/anchored.rs:100:35
[INFO] [stderr]     |
[INFO] [stderr] 100 |     pub fn push(&self, frame: &'a Frame) -> Self {
[INFO] [stderr]     |                                   ^^^^^ help: use `dyn`: `dyn Frame`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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/ast/anchored.rs:274:41
[INFO] [stderr]     |
[INFO] [stderr] 274 |     pub fn for_each_fun(&self, cb: &mut FnMut(Anchored<&FunctionDecl>)) {
[INFO] [stderr]     |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(Anchored<&FunctionDecl>)`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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/ast/anchored.rs:280:44
[INFO] [stderr]     |
[INFO] [stderr] 280 |     pub fn for_each_struct(&self, cb: &mut FnMut(Anchored<&StructDecl>)) {
[INFO] [stderr]     |                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(Anchored<&StructDecl>)`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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/ast/anchored.rs:286:42
[INFO] [stderr]     |
[INFO] [stderr] 286 |     pub fn for_each_enum(&self, cb: &mut FnMut(Anchored<&EnumDecl>)) {
[INFO] [stderr]     |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(Anchored<&EnumDecl>)`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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/ast/anchored.rs:292:47
[INFO] [stderr]     |
[INFO] [stderr] 292 |     pub fn for_each_namespace(&self, cb: &mut FnMut(Anchored<&NamespaceBody>)) {
[INFO] [stderr]     |                                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(Anchored<&NamespaceBody>)`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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/ast/anchored.rs:298:51
[INFO] [stderr]     |
[INFO] [stderr] 298 |     pub fn for_each_fun_of_schema(&self, cb: &mut FnMut(Anchored<&FunctionDecl>)) {
[INFO] [stderr]     |                                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(Anchored<&FunctionDecl>)`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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/ast/anchored.rs:306:54
[INFO] [stderr]     |
[INFO] [stderr] 306 |     pub fn for_each_struct_of_schema(&self, cb: &mut FnMut(Anchored<&StructDecl>)) {
[INFO] [stderr]     |                                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(Anchored<&StructDecl>)`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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/ast/anchored.rs:316:52
[INFO] [stderr]     |
[INFO] [stderr] 316 |     pub fn for_each_enum_of_schema(&self, cb: &mut FnMut(Anchored<&EnumDecl>)) {
[INFO] [stderr]     |                                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(Anchored<&EnumDecl>)`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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/ast/anchored.rs:332:51
[INFO] [stderr]     |
[INFO] [stderr] 332 |     pub fn for_each_fun_of_schema(&self, cb: &mut FnMut(Anchored<&FunctionDecl>)) {
[INFO] [stderr]     |                                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(Anchored<&FunctionDecl>)`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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/ast/anchored.rs:341:54
[INFO] [stderr]     |
[INFO] [stderr] 341 |     pub fn for_each_struct_of_schema(&self, cb: &mut FnMut(Anchored<&StructDecl>)) {
[INFO] [stderr]     |                                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(Anchored<&StructDecl>)`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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/ast/anchored.rs:350:52
[INFO] [stderr]     |
[INFO] [stderr] 350 |     pub fn for_each_enum_of_schema(&self, cb: &mut FnMut(Anchored<&EnumDecl>)) {
[INFO] [stderr]     |                                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(Anchored<&EnumDecl>)`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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/codegen/output.rs:35:21
[INFO] [stderr]    |
[INFO] [stderr] 35 |     writer: &'a mut fmt::Write,
[INFO] [stderr]    |                     ^^^^^^^^^^ help: use `dyn`: `dyn fmt::Write`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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/codegen/output.rs:47:32
[INFO] [stderr]    |
[INFO] [stderr] 47 |     pub fn new(writer: &'a mut fmt::Write) -> Self {
[INFO] [stderr]    |                                ^^^^^^^^^^ help: use `dyn`: `dyn fmt::Write`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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/codegen/output.rs:120:35
[INFO] [stderr]     |
[INFO] [stderr] 120 |     pub fn fmt<F>(writer: &'a mut fmt::Write, f: F) -> std::fmt::Result
[INFO] [stderr]     |                                   ^^^^^^^^^^ help: use `dyn`: `dyn fmt::Write`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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/codegen/rust/ir/lang.rs:45:22
[INFO] [stderr]    |
[INFO] [stderr] 45 |     body: Option<Box<Fn(&mut Scope) + 'a>>,
[INFO] [stderr]    |                      ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut Scope) + 'a`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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/codegen/rust/ir/lang.rs:193:22
[INFO] [stderr]     |
[INFO] [stderr] 193 |     body: Option<Box<Fn(&mut Scope) + 'a>>,
[INFO] [stderr]     |                      ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut Scope) + 'a`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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/codegen/rust/ir/protocol.rs:193:37
[INFO] [stderr]     |
[INFO] [stderr] 193 |     fn for_each_fun(&self, cb: &mut FnMut(ast::Anchored<&ast::FunctionDecl>)) {
[INFO] [stderr]     |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(ast::Anchored<&ast::FunctionDecl>)`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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/codegen/rust/ir/types.rs:5:64
[INFO] [stderr]   |
[INFO] [stderr] 5 |     fn as_rust<'a>(&'a self, stack: &'a ast::Stack<'a>) -> Box<fmt::Display + 'a>;
[INFO] [stderr]   |                                                                ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn fmt::Display + 'a`
[INFO] [stderr]   |
[INFO] [stderr]   = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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/codegen/rust/ir/types.rs:11:64
[INFO] [stderr]    |
[INFO] [stderr] 11 |     fn as_rust<'a>(&'a self, stack: &'a ast::Stack<'a>) -> Box<fmt::Display + 'a> {
[INFO] [stderr]    |                                                                ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn fmt::Display + 'a`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: `lavish-compiler` (bin "lavish" test) generated 21 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/lavish-fb50794e284ede2a)
[INFO] [stdout] 
[INFO] [stdout] running 14 tests
[INFO] [stdout] test codegen::output::tests::test_scope ... ok
[INFO] [stdout] test parser::tests::build_local ... ok
[INFO] [stdout] test parser::tests::struct_cookie ... ok
[INFO] [stdout] test parser::tests::fn_nested ... ok
[INFO] [stdout] test parser::tests::target_rust ... ok
[INFO] [stdout] test parser::tests::struct_comments ... ok
[INFO] [stdout] test parser::tests::fn_simple ... ok
[INFO] [stdout] test parser::tests::struct_incomplete ... ok
[INFO] [stdout] test parser::tests::target_go ... ok
[INFO] [stdout] test parser::tests::build_remote ... ok
[INFO] [stdout] test parser::tests::target_unknown ... ok
[INFO] [stdout] test parser::tests::fn_namespaced ... ok
[INFO] [stdout] test parser::tests::enums ... ok
[INFO] [stdout] test parser::tests::nf_simple ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 14 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "9508203f59a9eb642eb15690dd617ffe0ed8918d85aafa5b026514cf0c00becf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9508203f59a9eb642eb15690dd617ffe0ed8918d85aafa5b026514cf0c00becf", kill_on_drop: false }`
[INFO] [stdout] 9508203f59a9eb642eb15690dd617ffe0ed8918d85aafa5b026514cf0c00becf