Nov 17 16:26:47.605 INFO testing CGQAQ/Rust_Learn against try#2e026d6e5d7621634147ad4c8074f1d964dbb1be for pr-55982
Nov 17 16:26:47.607 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-1/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-55982/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +2e026d6e5d7621634147ad4c8074f1d964dbb1be-alt build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Nov 17 16:26:48.116 INFO [stdout] bc20d2229071094d0ffe85b14a9644b157f2f48f79ef9622cf67a2555b60680e
Nov 17 16:26:48.119 INFO running `"docker" "start" "-a" "bc20d2229071094d0ffe85b14a9644b157f2f48f79ef9622cf67a2555b60680e"`
Nov 17 16:26:49.034 INFO [stderr] usermod: no changes
Nov 17 16:26:49.067 INFO [stderr] warning: An explicit [[bin]] section is specified in Cargo.toml which currently
Nov 17 16:26:49.067 INFO [stderr] disables Cargo from automatically inferring other binary targets.
Nov 17 16:26:49.067 INFO [stderr] This inference behavior will change in the Rust 2018 edition and the following
Nov 17 16:26:49.067 INFO [stderr] files will be included as a binary target:
Nov 17 16:26:49.067 INFO [stderr] 
Nov 17 16:26:49.067 INFO [stderr] * /source/src/main.rs
Nov 17 16:26:49.067 INFO [stderr] 
Nov 17 16:26:49.067 INFO [stderr] This is likely to break cargo build or cargo test as these files may not be
Nov 17 16:26:49.067 INFO [stderr] ready to be compiled as a binary target today. You can future-proof yourself
Nov 17 16:26:49.067 INFO [stderr] and disable this warning by adding `autobins = false` to your [package]
Nov 17 16:26:49.067 INFO [stderr] section. You may also move the files to a location where Cargo would not
Nov 17 16:26:49.067 INFO [stderr] automatically infer them to be a target, such as in subfolders.
Nov 17 16:26:49.067 INFO [stderr] 
Nov 17 16:26:49.067 INFO [stderr] For more information on this warning you can consult
Nov 17 16:26:49.067 INFO [stderr] https://github.com/rust-lang/cargo/issues/5330
Nov 17 16:26:49.067 INFO [stderr] warning: path `/source/src/main.rs` was erroneously implicitly accepted for binary `main`,
Nov 17 16:26:49.067 INFO [stderr] please set bin.path in Cargo.toml
Nov 17 16:26:49.067 INFO [stderr]    Compiling learn v0.1.0 (/source)
Nov 17 16:26:49.378 INFO [stderr] warning: variable does not need to be mutable
Nov 17 16:26:49.378 INFO [stderr]   --> src/bin/mthread.rs:11:9
Nov 17 16:26:49.378 INFO [stderr]    |
Nov 17 16:26:49.378 INFO [stderr] 11 |     let mut ptr = Arc::new(Mutex::new("hello world!".chars()));
Nov 17 16:26:49.378 INFO [stderr]    |         ----^^^
Nov 17 16:26:49.378 INFO [stderr]    |         |
Nov 17 16:26:49.378 INFO [stderr]    |         help: remove this `mut`
Nov 17 16:26:49.378 INFO [stderr]    |
Nov 17 16:26:49.378 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 17 16:26:49.378 INFO [stderr] 
Nov 17 16:26:49.378 INFO [stderr] warning: variable does not need to be mutable
Nov 17 16:26:49.378 INFO [stderr]   --> src/bin/mthread.rs:27:13
Nov 17 16:26:49.378 INFO [stderr]    |
Nov 17 16:26:49.378 INFO [stderr] 27 |         let mut ptr = ptr.clone();
Nov 17 16:26:49.378 INFO [stderr]    |             ----^^^
Nov 17 16:26:49.378 INFO [stderr]    |             |
Nov 17 16:26:49.378 INFO [stderr]    |             help: remove this `mut`
Nov 17 16:26:49.378 INFO [stderr] 
Nov 17 16:26:49.378 INFO [stderr] warning: variable does not need to be mutable
Nov 17 16:26:49.378 INFO [stderr]   --> src/bin/mthread.rs:29:13
Nov 17 16:26:49.378 INFO [stderr]    |
Nov 17 16:26:49.378 INFO [stderr] 29 |         let mut tx = tx.clone();
Nov 17 16:26:49.378 INFO [stderr]    |             ----^^
Nov 17 16:26:49.378 INFO [stderr]    |             |
Nov 17 16:26:49.378 INFO [stderr]    |             help: remove this `mut`
Nov 17 16:26:49.378 INFO [stderr] 
Nov 17 16:26:49.379 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 17 16:26:49.379 INFO [stderr]   --> src/bin/mthread.rs:20:21
Nov 17 16:26:49.379 INFO [stderr]    |
Nov 17 16:26:49.379 INFO [stderr] 20 |                     a.send(1);
Nov 17 16:26:49.379 INFO [stderr]    |                     ^^^^^^^^^^
Nov 17 16:26:49.379 INFO [stderr]    |
Nov 17 16:26:49.379 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 17 16:26:49.379 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 17 16:26:49.379 INFO [stderr] 
Nov 17 16:26:49.379 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 17 16:26:49.379 INFO [stderr]   --> src/bin/mthread.rs:34:17
Nov 17 16:26:49.379 INFO [stderr]    |
Nov 17 16:26:49.379 INFO [stderr] 34 |                 tx.send(d);
Nov 17 16:26:49.379 INFO [stderr]    |                 ^^^^^^^^^^^
Nov 17 16:26:49.379 INFO [stderr]    |
Nov 17 16:26:49.379 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 17 16:26:49.379 INFO [stderr] 
Nov 17 16:26:50.592 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.54s
Nov 17 16:26:50.597 INFO [stderr] su: No module specific data is present
Nov 17 16:26:51.195 INFO running `"docker" "inspect" "bc20d2229071094d0ffe85b14a9644b157f2f48f79ef9622cf67a2555b60680e"`
Nov 17 16:26:51.365 INFO running `"docker" "rm" "-f" "bc20d2229071094d0ffe85b14a9644b157f2f48f79ef9622cf67a2555b60680e"`
Nov 17 16:26:51.559 INFO [stdout] bc20d2229071094d0ffe85b14a9644b157f2f48f79ef9622cf67a2555b60680e
Nov 17 16:26:51.565 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-1/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-55982/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +2e026d6e5d7621634147ad4c8074f1d964dbb1be-alt test --frozen --no-run" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Nov 17 16:26:51.907 INFO [stdout] 82191a60c2c94cb48f1e1036a84865cf6e76c36f3dee2c6fb41dee37c971964d
Nov 17 16:26:51.909 INFO running `"docker" "start" "-a" "82191a60c2c94cb48f1e1036a84865cf6e76c36f3dee2c6fb41dee37c971964d"`
Nov 17 16:26:52.678 INFO [stderr] usermod: no changes
Nov 17 16:26:52.782 INFO [stderr] warning: An explicit [[bin]] section is specified in Cargo.toml which currently
Nov 17 16:26:52.782 INFO [stderr] disables Cargo from automatically inferring other binary targets.
Nov 17 16:26:52.782 INFO [stderr] This inference behavior will change in the Rust 2018 edition and the following
Nov 17 16:26:52.782 INFO [stderr] files will be included as a binary target:
Nov 17 16:26:52.782 INFO [stderr] 
Nov 17 16:26:52.782 INFO [stderr] * /source/src/main.rs
Nov 17 16:26:52.782 INFO [stderr] 
Nov 17 16:26:52.782 INFO [stderr] This is likely to break cargo build or cargo test as these files may not be
Nov 17 16:26:52.782 INFO [stderr] ready to be compiled as a binary target today. You can future-proof yourself
Nov 17 16:26:52.782 INFO [stderr] and disable this warning by adding `autobins = false` to your [package]
Nov 17 16:26:52.782 INFO [stderr] section. You may also move the files to a location where Cargo would not
Nov 17 16:26:52.782 INFO [stderr] automatically infer them to be a target, such as in subfolders.
Nov 17 16:26:52.783 INFO [stderr] 
Nov 17 16:26:52.783 INFO [stderr] For more information on this warning you can consult
Nov 17 16:26:52.783 INFO [stderr] https://github.com/rust-lang/cargo/issues/5330
Nov 17 16:26:52.783 INFO [stderr] warning: path `/source/src/main.rs` was erroneously implicitly accepted for binary `main`,
Nov 17 16:26:52.783 INFO [stderr] please set bin.path in Cargo.toml
Nov 17 16:26:52.784 INFO [stderr]    Compiling learn v0.1.0 (/source)
Nov 17 16:26:53.361 INFO [stderr] warning: variable does not need to be mutable
Nov 17 16:26:53.362 INFO [stderr]   --> src/bin/mthread.rs:11:9
Nov 17 16:26:53.363 INFO [stderr]    |
Nov 17 16:26:53.364 INFO [stderr] 11 |     let mut ptr = Arc::new(Mutex::new("hello world!".chars()));
Nov 17 16:26:53.364 INFO [stderr]    |         ----^^^
Nov 17 16:26:53.364 INFO [stderr]    |         |
Nov 17 16:26:53.364 INFO [stderr]    |         help: remove this `mut`
Nov 17 16:26:53.364 INFO [stderr]    |
Nov 17 16:26:53.365 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 17 16:26:53.365 INFO [stderr] 
Nov 17 16:26:53.366 INFO [stderr] warning: variable does not need to be mutable
Nov 17 16:26:53.366 INFO [stderr]   --> src/bin/mthread.rs:27:13
Nov 17 16:26:53.366 INFO [stderr]    |
Nov 17 16:26:53.366 INFO [stderr] 27 |         let mut ptr = ptr.clone();
Nov 17 16:26:53.366 INFO [stderr]    |             ----^^^
Nov 17 16:26:53.366 INFO [stderr]    |             |
Nov 17 16:26:53.366 INFO [stderr]    |             help: remove this `mut`
Nov 17 16:26:53.366 INFO [stderr] 
Nov 17 16:26:53.366 INFO [stderr] warning: variable does not need to be mutable
Nov 17 16:26:53.366 INFO [stderr]   --> src/bin/mthread.rs:29:13
Nov 17 16:26:53.366 INFO [stderr]    |
Nov 17 16:26:53.366 INFO [stderr] 29 |         let mut tx = tx.clone();
Nov 17 16:26:53.367 INFO [stderr]    |             ----^^
Nov 17 16:26:53.367 INFO [stderr]    |             |
Nov 17 16:26:53.367 INFO [stderr]    |             help: remove this `mut`
Nov 17 16:26:53.367 INFO [stderr] 
Nov 17 16:26:53.369 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 17 16:26:53.369 INFO [stderr]   --> src/bin/mthread.rs:20:21
Nov 17 16:26:53.369 INFO [stderr]    |
Nov 17 16:26:53.369 INFO [stderr] 20 |                     a.send(1);
Nov 17 16:26:53.370 INFO [stderr]    |                     ^^^^^^^^^^
Nov 17 16:26:53.370 INFO [stderr]    |
Nov 17 16:26:53.370 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 17 16:26:53.370 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 17 16:26:53.370 INFO [stderr] 
Nov 17 16:26:53.371 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 17 16:26:53.371 INFO [stderr]   --> src/bin/mthread.rs:34:17
Nov 17 16:26:53.371 INFO [stderr]    |
Nov 17 16:26:53.371 INFO [stderr] 34 |                 tx.send(d);
Nov 17 16:26:53.371 INFO [stderr]    |                 ^^^^^^^^^^^
Nov 17 16:26:53.371 INFO [stderr]    |
Nov 17 16:26:53.371 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 17 16:26:53.371 INFO [stderr] 
Nov 17 16:26:53.655 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.92s
Nov 17 16:26:53.657 INFO [stderr] su: No module specific data is present
Nov 17 16:26:54.102 INFO running `"docker" "inspect" "82191a60c2c94cb48f1e1036a84865cf6e76c36f3dee2c6fb41dee37c971964d"`
Nov 17 16:26:54.159 INFO running `"docker" "rm" "-f" "82191a60c2c94cb48f1e1036a84865cf6e76c36f3dee2c6fb41dee37c971964d"`
Nov 17 16:26:54.235 INFO [stdout] 82191a60c2c94cb48f1e1036a84865cf6e76c36f3dee2c6fb41dee37c971964d
Nov 17 16:26:54.240 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-1/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-55982/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +2e026d6e5d7621634147ad4c8074f1d964dbb1be-alt test --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Nov 17 16:26:54.564 INFO [stdout] 31eb88635685597100f7954cfe9bf591a60e4429736134533e0a7eaf5681c384
Nov 17 16:26:54.565 INFO running `"docker" "start" "-a" "31eb88635685597100f7954cfe9bf591a60e4429736134533e0a7eaf5681c384"`
Nov 17 16:26:55.304 INFO [stderr] usermod: no changes
Nov 17 16:26:55.338 INFO [stderr] warning: An explicit [[bin]] section is specified in Cargo.toml which currently
Nov 17 16:26:55.338 INFO [stderr] disables Cargo from automatically inferring other binary targets.
Nov 17 16:26:55.338 INFO [stderr] This inference behavior will change in the Rust 2018 edition and the following
Nov 17 16:26:55.338 INFO [stderr] files will be included as a binary target:
Nov 17 16:26:55.338 INFO [stderr] 
Nov 17 16:26:55.338 INFO [stderr] * /source/src/main.rs
Nov 17 16:26:55.338 INFO [stderr] 
Nov 17 16:26:55.338 INFO [stderr] This is likely to break cargo build or cargo test as these files may not be
Nov 17 16:26:55.338 INFO [stderr] ready to be compiled as a binary target today. You can future-proof yourself
Nov 17 16:26:55.338 INFO [stderr] and disable this warning by adding `autobins = false` to your [package]
Nov 17 16:26:55.338 INFO [stderr] section. You may also move the files to a location where Cargo would not
Nov 17 16:26:55.338 INFO [stderr] automatically infer them to be a target, such as in subfolders.
Nov 17 16:26:55.338 INFO [stderr] 
Nov 17 16:26:55.338 INFO [stderr] For more information on this warning you can consult
Nov 17 16:26:55.338 INFO [stderr] https://github.com/rust-lang/cargo/issues/5330
Nov 17 16:26:55.338 INFO [stderr] warning: path `/source/src/main.rs` was erroneously implicitly accepted for binary `main`,
Nov 17 16:26:55.338 INFO [stderr] please set bin.path in Cargo.toml
Nov 17 16:26:55.346 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
Nov 17 16:26:55.346 INFO [stderr]      Running /target/debug/deps/demo-585b2be551b65742
Nov 17 16:26:55.348 INFO [stdout] 
Nov 17 16:26:55.349 INFO [stdout] running 0 tests
Nov 17 16:26:55.349 INFO [stdout] 
Nov 17 16:26:55.349 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Nov 17 16:26:55.349 INFO [stdout] 
Nov 17 16:26:55.349 INFO [stderr]      Running /target/debug/deps/main-fb73a5c9b9205c3f
Nov 17 16:26:55.350 INFO [stdout] 
Nov 17 16:26:55.350 INFO [stdout] running 0 tests
Nov 17 16:26:55.350 INFO [stdout] 
Nov 17 16:26:55.350 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Nov 17 16:26:55.350 INFO [stdout] 
Nov 17 16:26:55.351 INFO [stderr]      Running /target/debug/deps/mthread-4bfa533ecbfa1f4d
Nov 17 16:26:55.352 INFO [stdout] 
Nov 17 16:26:55.352 INFO [stdout] running 0 tests
Nov 17 16:26:55.352 INFO [stdout] 
Nov 17 16:26:55.352 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Nov 17 16:26:55.352 INFO [stdout] 
Nov 17 16:26:55.354 INFO [stderr] su: No module specific data is present
Nov 17 16:26:55.635 INFO running `"docker" "inspect" "31eb88635685597100f7954cfe9bf591a60e4429736134533e0a7eaf5681c384"`
Nov 17 16:26:55.721 INFO running `"docker" "rm" "-f" "31eb88635685597100f7954cfe9bf591a60e4429736134533e0a7eaf5681c384"`
Nov 17 16:26:55.819 INFO [stdout] 31eb88635685597100f7954cfe9bf591a60e4429736134533e0a7eaf5681c384