[INFO] fetching crate dgen 0.1.1...
[INFO] testing dgen-0.1.1 against 1.54.0 for beta-1.55-1
[INFO] extracting crate dgen 0.1.1 into /workspace/builds/worker-69/source
[INFO] validating manifest of crates.io crate dgen 0.1.1 on toolchain 1.54.0
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[INFO] started tweaking crates.io crate dgen 0.1.1
[INFO] finished tweaking crates.io crate dgen 0.1.1
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[INFO] [stdout] 5028b2378f345a56b39c88ba44fa6e2d5391717a345cba563e6b2e2f02698c94
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[INFO] [stderr]    Compiling rand_core v0.4.2
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[INFO] [stderr]    Compiling dgen v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Itertools` is imported redundantly
[INFO] [stdout]    --> src/interpreter/errors.rs:119:9
[INFO] [stdout]     |
[INFO] [stdout] 5   | use itertools::Itertools;
[INFO] [stdout]     |     -------------------- the item `Itertools` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 119 |     use itertools::Itertools;
[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]   --> src/prototype.rs:88:44
[INFO] [stdout]    |
[INFO] [stdout] 88 | pub type BuiltinFunctionCreator = &'static Fn(Arguments) -> CreateFunctionResult;
[INFO] [stdout]    |                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(Arguments) -> CreateFunctionResult`
[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/writer/mod.rs:7:23
[INFO] [stdout]   |
[INFO] [stdout] 7 |     delegate: &'a mut Write,
[INFO] [stdout]   |                       ^^^^^ help: use `dyn`: `dyn 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/writer/mod.rs:26:34
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub fn new(delegate: &'a mut Write) -> TrackingWriter<'a> {
[INFO] [stdout]    |                                  ^^^^^ help: use `dyn`: `dyn 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/writer/mod.rs:43:32
[INFO] [stdout]    |
[INFO] [stdout] 43 |     pub fn new(writer: &'a mut Write) -> DataGenOutput<'a> {
[INFO] [stdout]    |                                ^^^^^ help: use `dyn`: `dyn 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/lib.rs:56:25
[INFO] [stdout]    |
[INFO] [stdout] 56 | pub type DynFun<T> = Rc<RunnableFunction<T>>;
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn RunnableFunction<T>`
[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: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `failure::Error::cause`: please use 'as_fail()' method instead
[INFO] [stdout]   --> src/main.rs:34:46
[INFO] [stdout]    |
[INFO] [stdout] 34 |                     eprintln!("cause: {}", e.cause());
[INFO] [stdout]    |                                              ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 58.75s
[INFO] running `Command { std: "docker" "inspect" "5028b2378f345a56b39c88ba44fa6e2d5391717a345cba563e6b2e2f02698c94", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5028b2378f345a56b39c88ba44fa6e2d5391717a345cba563e6b2e2f02698c94", kill_on_drop: false }`
[INFO] [stdout] 5028b2378f345a56b39c88ba44fa6e2d5391717a345cba563e6b2e2f02698c94
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-69/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-69/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] ba8d1136c36a1bd356e0e17d2945e81f4316a7970196c502c10b533502032fee
[INFO] running `Command { std: "docker" "start" "-a" "ba8d1136c36a1bd356e0e17d2945e81f4316a7970196c502c10b533502032fee", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] warning: the item `Itertools` is imported redundantly
[INFO] [stdout]    --> src/interpreter/errors.rs:119:9
[INFO] [stdout]     |
[INFO] [stdout] 5   | use itertools::Itertools;
[INFO] [stdout]     |     -------------------- the item `Itertools` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 119 |     use itertools::Itertools;
[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]   --> src/prototype.rs:88:44
[INFO] [stdout]    |
[INFO] [stdout] 88 | pub type BuiltinFunctionCreator = &'static Fn(Arguments) -> CreateFunctionResult;
[INFO] [stdout]    |                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(Arguments) -> CreateFunctionResult`
[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/writer/mod.rs:7:23
[INFO] [stdout]   |
[INFO] [stdout] 7 |     delegate: &'a mut Write,
[INFO] [stdout]   |                       ^^^^^ help: use `dyn`: `dyn 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/writer/mod.rs:26:34
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub fn new(delegate: &'a mut Write) -> TrackingWriter<'a> {
[INFO] [stdout]    |                                  ^^^^^ help: use `dyn`: `dyn 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] [stderr]    Compiling dgen v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/writer/mod.rs:43:32
[INFO] [stdout]    |
[INFO] [stdout] 43 |     pub fn new(writer: &'a mut Write) -> DataGenOutput<'a> {
[INFO] [stdout]    |                                ^^^^^ help: use `dyn`: `dyn 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/lib.rs:56:25
[INFO] [stdout]    |
[INFO] [stdout] 56 | pub type DynFun<T> = Rc<RunnableFunction<T>>;
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn RunnableFunction<T>`
[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: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `failure::Error::cause`: please use 'as_fail()' method instead
[INFO] [stdout]   --> src/main.rs:34:46
[INFO] [stdout]    |
[INFO] [stdout] 34 |                     eprintln!("cause: {}", e.cause());
[INFO] [stdout]    |                                              ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Itertools` is imported redundantly
[INFO] [stdout]    --> src/interpreter/errors.rs:119:9
[INFO] [stdout]     |
[INFO] [stdout] 5   | use itertools::Itertools;
[INFO] [stdout]     |     -------------------- the item `Itertools` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 119 |     use itertools::Itertools;
[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]   --> src/prototype.rs:88:44
[INFO] [stdout]    |
[INFO] [stdout] 88 | pub type BuiltinFunctionCreator = &'static Fn(Arguments) -> CreateFunctionResult;
[INFO] [stdout]    |                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(Arguments) -> CreateFunctionResult`
[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/writer/mod.rs:7:23
[INFO] [stdout]   |
[INFO] [stdout] 7 |     delegate: &'a mut Write,
[INFO] [stdout]   |                       ^^^^^ help: use `dyn`: `dyn 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/writer/mod.rs:26:34
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub fn new(delegate: &'a mut Write) -> TrackingWriter<'a> {
[INFO] [stdout]    |                                  ^^^^^ help: use `dyn`: `dyn 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/writer/mod.rs:43:32
[INFO] [stdout]    |
[INFO] [stdout] 43 |     pub fn new(writer: &'a mut Write) -> DataGenOutput<'a> {
[INFO] [stdout]    |                                ^^^^^ help: use `dyn`: `dyn 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/lib.rs:56:25
[INFO] [stdout]    |
[INFO] [stdout] 56 | pub type DynFun<T> = Rc<RunnableFunction<T>>;
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn RunnableFunction<T>`
[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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 7.81s
[INFO] running `Command { std: "docker" "inspect" "ba8d1136c36a1bd356e0e17d2945e81f4316a7970196c502c10b533502032fee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba8d1136c36a1bd356e0e17d2945e81f4316a7970196c502c10b533502032fee", kill_on_drop: false }`
[INFO] [stdout] ba8d1136c36a1bd356e0e17d2945e81f4316a7970196c502c10b533502032fee
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-69/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-69/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] 1b8620461a25a824c5f563dd2824e4dedf9a7ba22ed5433798e6903e865b0b83
[INFO] running `Command { std: "docker" "start" "-a" "1b8620461a25a824c5f563dd2824e4dedf9a7ba22ed5433798e6903e865b0b83", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: the item `Itertools` is imported redundantly
[INFO] [stderr]    --> src/interpreter/errors.rs:119:9
[INFO] [stderr]     |
[INFO] [stderr] 5   | use itertools::Itertools;
[INFO] [stderr]     |     -------------------- the item `Itertools` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 119 |     use itertools::Itertools;
[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]   --> src/prototype.rs:88:44
[INFO] [stderr]    |
[INFO] [stderr] 88 | pub type BuiltinFunctionCreator = &'static Fn(Arguments) -> CreateFunctionResult;
[INFO] [stderr]    |                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(Arguments) -> CreateFunctionResult`
[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/writer/mod.rs:7:23
[INFO] [stderr]   |
[INFO] [stderr] 7 |     delegate: &'a mut Write,
[INFO] [stderr]   |                       ^^^^^ help: use `dyn`: `dyn 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/writer/mod.rs:26:34
[INFO] [stderr]    |
[INFO] [stderr] 26 |     pub fn new(delegate: &'a mut Write) -> TrackingWriter<'a> {
[INFO] [stderr]    |                                  ^^^^^ help: use `dyn`: `dyn 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/writer/mod.rs:43:32
[INFO] [stderr]    |
[INFO] [stderr] 43 |     pub fn new(writer: &'a mut Write) -> DataGenOutput<'a> {
[INFO] [stderr]    |                                ^^^^^ help: use `dyn`: `dyn 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/lib.rs:56:25
[INFO] [stderr]    |
[INFO] [stderr] 56 | pub type DynFun<T> = Rc<RunnableFunction<T>>;
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn RunnableFunction<T>`
[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: 6 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: the item `Itertools` is imported redundantly
[INFO] [stderr]    --> src/interpreter/errors.rs:119:9
[INFO] [stderr]     |
[INFO] [stderr] 5   | use itertools::Itertools;
[INFO] [stderr]     |     -------------------- the item `Itertools` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 119 |     use itertools::Itertools;
[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]   --> src/prototype.rs:88:44
[INFO] [stderr]    |
[INFO] [stderr] 88 | pub type BuiltinFunctionCreator = &'static Fn(Arguments) -> CreateFunctionResult;
[INFO] [stderr]    |                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(Arguments) -> CreateFunctionResult`
[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/writer/mod.rs:7:23
[INFO] [stderr]   |
[INFO] [stderr] 7 |     delegate: &'a mut Write,
[INFO] [stderr]   |                       ^^^^^ help: use `dyn`: `dyn 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/writer/mod.rs:26:34
[INFO] [stderr]    |
[INFO] [stderr] 26 |     pub fn new(delegate: &'a mut Write) -> TrackingWriter<'a> {
[INFO] [stderr]    |                                  ^^^^^ help: use `dyn`: `dyn 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/writer/mod.rs:43:32
[INFO] [stderr]    |
[INFO] [stderr] 43 |     pub fn new(writer: &'a mut Write) -> DataGenOutput<'a> {
[INFO] [stderr]    |                                ^^^^^ help: use `dyn`: `dyn 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/lib.rs:56:25
[INFO] [stderr]    |
[INFO] [stderr] 56 | pub type DynFun<T> = Rc<RunnableFunction<T>>;
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn RunnableFunction<T>`
[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: 6 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `failure::Error::cause`: please use 'as_fail()' method instead
[INFO] [stderr]   --> src/main.rs:34:46
[INFO] [stderr]    |
[INFO] [stderr] 34 |                     eprintln!("cause: {}", e.cause());
[INFO] [stderr]    |                                              ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.32s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/dgen-9006918796570107)
[INFO] [stdout] 
[INFO] [stdout] running 58 tests
[INFO] [stdout] test builtins::from_file::test::produces_words_from_file_with_crlf_line_endings ... ok
[INFO] [stdout] test builtins::from_file::test::produces_words_from_file_with_lf_line_endings ... ok
[INFO] [stdout] test interpreter::errors::parse_err_is_displayed_correctly ... ok
[INFO] [stdout] test interpreter::parse_test::parses_empty_bin_literal ... ok
[INFO] [stdout] test interpreter::parse_test::parses_decimal_literal_token_with_positive_sign ... ok
[INFO] [stdout] test interpreter::parse_test::parses_bin_literal ... ok
[INFO] [stdout] test interpreter::parse_test::parses_basic_string_literal_token ... ok
[INFO] [stdout] test interpreter::parse_test::parses_nested_function_calls ... ok
[INFO] [stdout] test interpreter::parse_test::parses_unsigned_int_literal_token ... ok
[INFO] [stdout] test interpreter::parse_test::parses_newline_escaped_char_literal ... ok
[INFO] [stdout] test interpreter::parse_test::parses_signed_int_literal_positive_token ... ok
[INFO] [stdout] test interpreter::parse_test::parses_boolean_literal_false_token ... ok
[INFO] [stdout] test interpreter::parse_test::parses_string_literal_with_unicode_escape_sequences ... ok
[INFO] [stdout] test interpreter::parse_test::parses_boolean_literal_true_token ... ok
[INFO] [stdout] test interpreter::parse_test::parses_mapped_function_call_withou_args ... ok
[INFO] [stdout] test interpreter::parse_test::parses_function_call_with_literal_arguments ... ok
[INFO] [stdout] test interpreter::parse_test::parses_decimal_literal_token_with_negative_sign ... ok
[INFO] [stdout] test interpreter::parse_test::parses_decimal_literal_token ... ok
[INFO] [stdout] test interpreter::parse_test::parses_basic_char_literal ... ok
[INFO] [stdout] test interpreter::parse_test::parses_unsigned_int_hex_literal_token ... ok
[INFO] [stdout] test interpreter::parse_test::parses_program_with_macro_definitions ... ok
[INFO] [stdout] test interpreter::parse_test::parses_mapped_function_call ... ok
[INFO] [stdout] test interpreter::parse_test::parses_signed_int_literal_negative_token ... ok
[INFO] [stdout] test interpreter::parse_test::parses_unicode_char_literal ... ok
[INFO] [stdout] test builtins::concat::test::binary_is_concatenated ... ok
[INFO] [stdout] test interpreter::parse_test::parses_function_call_with_zero_arguments ... ok
[INFO] [stdout] test interpreter::parse_test::parses_string_literal_with_escaped_quotes ... ok
[INFO] [stdout] test interpreter::parse_test::parses_string_literal_with_whitespace_chars_and_escape_sequences ... ok
[INFO] [stdout] test interpreter::parse_test::parses_string_literal_that_is_all_whitespace ... ok
[INFO] [stdout] test builtins::byte_order::test::uint_is_converted_to_little_endian_binary ... ok
[INFO] [stdout] test builtins::strings::test::string_bytes_supports_a_lot_of_encodings ... ok
[INFO] [stdout] test fun_test::declare_and_use_function_with_mapper ... ok
[INFO] [stdout] test builtins::strings::test::use_custom_string_function ... ok
[INFO] [stdout] test builtins::bin_length::test::bin_length_returns_length_of_binary ... ok
[INFO] [stdout] test builtins::byte_order::test::int_is_converted_to_big_endian_binary ... ok
[INFO] [stdout] test fun_test::use_std_boolean_function ... ok
[INFO] [stdout] test builtins::byte_order::test::decimal_is_converted_to_big_endian_binary ... ok
[INFO] [stdout] test builtins::strings::test::string_length_returns_length_of_string ... ok
[INFO] [stdout] test fun_test::use_binary_functions ... ok
[INFO] [stdout] test builtins::byte_order::test::int_is_converted_to_little_endian_binary ... ok
[INFO] [stdout] test builtins::concat::test::strings_are_concatenated ... ok
[INFO] [stdout] test builtins::byte_order::test::uint_is_converted_to_big_endian_binary ... ok
[INFO] [stdout] test builtins::sequence::test::bin_sequence ... ok
[INFO] [stdout] test builtins::repeat_delim::test::repeat_delimited_creates_binary_output ... ok
[INFO] [stdout] test fun_test::signed_integer_functions ... ok
[INFO] [stdout] test fun_test::stable_select_a_generator ... ok
[INFO] [stdout] test builtins::repeat_delim::test::repeat_delimited_creates_string_output ... ok
[INFO] [stdout] test fun_test::declare_and_use_functions ... ok
[INFO] [stdout] test fun_test::mapping_a_mapped_function ... ok
[INFO] [stdout] test builtins::strings::test::utf8_bytes_returns_encoded_string ... ok
[INFO] [stdout] test builtins::sequence::test::bin_wrapping_sequence ... ok
[INFO] [stdout] test builtins::strings::test::generate_ascii_strings ... ok
[INFO] [stdout] test builtins::env::test::returns_the_value_of_an_environment_variable ... ok
[INFO] [stdout] test builtins::strings::test::std_unicode_string_fun ... ok
[INFO] [stdout] test builtins::sequence::test::char_sequence ... ok
[INFO] [stdout] test builtins::sequence::test::char_wrapping_sequence ... ok
[INFO] [stdout] test fun_test::pass_mapped_function_as_function_argument ... ok
[INFO] [stdout] test builtins::byte_order::test::decimal_is_converted_to_little_endian_binary ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 58 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 4.42s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/dgen-7ba10045b4f01a32)
[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]    Doc-tests dgen
[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] running `Command { std: "docker" "inspect" "1b8620461a25a824c5f563dd2824e4dedf9a7ba22ed5433798e6903e865b0b83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b8620461a25a824c5f563dd2824e4dedf9a7ba22ed5433798e6903e865b0b83", kill_on_drop: false }`
[INFO] [stdout] 1b8620461a25a824c5f563dd2824e4dedf9a7ba22ed5433798e6903e865b0b83
