Dec 02 08:56:37.727 INFO testing CGQAQ/Rust_Learn against master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61 for beta-1.31-5
Dec 02 08:56:37.727 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-5/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/beta-1.31-5/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/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 +8940af3cea4a9a9deabcaf843b2f8cad9a83fc61-alt build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 02 08:56:38.288 INFO [stdout] ad6483ef9fe60059a145a1ce54b3819d8480546e1ff525217fb59e0c4f065916
Dec 02 08:56:38.290 INFO running `"docker" "start" "-a" "ad6483ef9fe60059a145a1ce54b3819d8480546e1ff525217fb59e0c4f065916"`
Dec 02 08:56:40.015 INFO [stderr] usermod: no changes
Dec 02 08:56:40.067 INFO [stderr] warning: An explicit [[bin]] section is specified in Cargo.toml which currently
Dec 02 08:56:40.067 INFO [stderr] disables Cargo from automatically inferring other binary targets.
Dec 02 08:56:40.067 INFO [stderr] This inference behavior will change in the Rust 2018 edition and the following
Dec 02 08:56:40.067 INFO [stderr] files will be included as a binary target:
Dec 02 08:56:40.067 INFO [stderr] 
Dec 02 08:56:40.067 INFO [stderr] * /source/src/main.rs
Dec 02 08:56:40.067 INFO [stderr] 
Dec 02 08:56:40.067 INFO [stderr] This is likely to break cargo build or cargo test as these files may not be
Dec 02 08:56:40.067 INFO [stderr] ready to be compiled as a binary target today. You can future-proof yourself
Dec 02 08:56:40.067 INFO [stderr] and disable this warning by adding `autobins = false` to your [package]
Dec 02 08:56:40.067 INFO [stderr] section. You may also move the files to a location where Cargo would not
Dec 02 08:56:40.067 INFO [stderr] automatically infer them to be a target, such as in subfolders.
Dec 02 08:56:40.067 INFO [stderr] 
Dec 02 08:56:40.067 INFO [stderr] For more information on this warning you can consult
Dec 02 08:56:40.067 INFO [stderr] https://github.com/rust-lang/cargo/issues/5330
Dec 02 08:56:40.067 INFO [stderr] warning: path `/source/src/main.rs` was erroneously implicitly accepted for binary `main`,
Dec 02 08:56:40.067 INFO [stderr] please set bin.path in Cargo.toml
Dec 02 08:56:40.075 INFO [stderr]    Compiling learn v0.1.0 (/source)
Dec 02 08:56:41.283 INFO [stderr] warning: variable does not need to be mutable
Dec 02 08:56:41.283 INFO [stderr]   --> src/bin/mthread.rs:11:9
Dec 02 08:56:41.283 INFO [stderr]    |
Dec 02 08:56:41.283 INFO [stderr] 11 |     let mut ptr = Arc::new(Mutex::new("hello world!".chars()));
Dec 02 08:56:41.283 INFO [stderr]    |         ----^^^
Dec 02 08:56:41.283 INFO [stderr]    |         |
Dec 02 08:56:41.283 INFO [stderr]    |         help: remove this `mut`
Dec 02 08:56:41.283 INFO [stderr]    |
Dec 02 08:56:41.283 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 02 08:56:41.283 INFO [stderr] 
Dec 02 08:56:41.283 INFO [stderr] warning: variable does not need to be mutable
Dec 02 08:56:41.283 INFO [stderr]   --> src/bin/mthread.rs:27:13
Dec 02 08:56:41.283 INFO [stderr]    |
Dec 02 08:56:41.283 INFO [stderr] 27 |         let mut ptr = ptr.clone();
Dec 02 08:56:41.283 INFO [stderr]    |             ----^^^
Dec 02 08:56:41.283 INFO [stderr]    |             |
Dec 02 08:56:41.283 INFO [stderr]    |             help: remove this `mut`
Dec 02 08:56:41.283 INFO [stderr] 
Dec 02 08:56:41.283 INFO [stderr] warning: variable does not need to be mutable
Dec 02 08:56:41.283 INFO [stderr]   --> src/bin/mthread.rs:29:13
Dec 02 08:56:41.283 INFO [stderr]    |
Dec 02 08:56:41.284 INFO [stderr] 29 |         let mut tx = tx.clone();
Dec 02 08:56:41.284 INFO [stderr]    |             ----^^
Dec 02 08:56:41.284 INFO [stderr]    |             |
Dec 02 08:56:41.284 INFO [stderr]    |             help: remove this `mut`
Dec 02 08:56:41.284 INFO [stderr] 
Dec 02 08:56:41.284 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 02 08:56:41.284 INFO [stderr]   --> src/bin/mthread.rs:20:21
Dec 02 08:56:41.284 INFO [stderr]    |
Dec 02 08:56:41.284 INFO [stderr] 20 |                     a.send(1);
Dec 02 08:56:41.284 INFO [stderr]    |                     ^^^^^^^^^^
Dec 02 08:56:41.284 INFO [stderr]    |
Dec 02 08:56:41.284 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 02 08:56:41.284 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 02 08:56:41.284 INFO [stderr] 
Dec 02 08:56:41.284 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 02 08:56:41.284 INFO [stderr]   --> src/bin/mthread.rs:34:17
Dec 02 08:56:41.284 INFO [stderr]    |
Dec 02 08:56:41.284 INFO [stderr] 34 |                 tx.send(d);
Dec 02 08:56:41.284 INFO [stderr]    |                 ^^^^^^^^^^^
Dec 02 08:56:41.284 INFO [stderr]    |
Dec 02 08:56:41.284 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 02 08:56:41.284 INFO [stderr] 
Dec 02 08:56:44.371 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.32s
Dec 02 08:56:44.379 INFO [stderr] su: No module specific data is present
Dec 02 08:56:45.504 INFO running `"docker" "inspect" "ad6483ef9fe60059a145a1ce54b3819d8480546e1ff525217fb59e0c4f065916"`
Dec 02 08:56:45.829 INFO running `"docker" "rm" "-f" "ad6483ef9fe60059a145a1ce54b3819d8480546e1ff525217fb59e0c4f065916"`
Dec 02 08:56:46.107 INFO [stdout] ad6483ef9fe60059a145a1ce54b3819d8480546e1ff525217fb59e0c4f065916
Dec 02 08:56:46.107 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-5/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/beta-1.31-5/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/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 +8940af3cea4a9a9deabcaf843b2f8cad9a83fc61-alt test --frozen --no-run" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 02 08:56:46.614 INFO [stdout] bf5614b472855312bcddd6142bf010ddb07e8530c266d0d1046076f1a65d891f
Dec 02 08:56:46.616 INFO running `"docker" "start" "-a" "bf5614b472855312bcddd6142bf010ddb07e8530c266d0d1046076f1a65d891f"`
Dec 02 08:56:47.801 INFO [stderr] usermod: no changes
Dec 02 08:56:47.871 INFO [stderr] warning: An explicit [[bin]] section is specified in Cargo.toml which currently
Dec 02 08:56:47.871 INFO [stderr] disables Cargo from automatically inferring other binary targets.
Dec 02 08:56:47.871 INFO [stderr] This inference behavior will change in the Rust 2018 edition and the following
Dec 02 08:56:47.871 INFO [stderr] files will be included as a binary target:
Dec 02 08:56:47.871 INFO [stderr] 
Dec 02 08:56:47.871 INFO [stderr] * /source/src/main.rs
Dec 02 08:56:47.871 INFO [stderr] 
Dec 02 08:56:47.871 INFO [stderr] This is likely to break cargo build or cargo test as these files may not be
Dec 02 08:56:47.871 INFO [stderr] ready to be compiled as a binary target today. You can future-proof yourself
Dec 02 08:56:47.871 INFO [stderr] and disable this warning by adding `autobins = false` to your [package]
Dec 02 08:56:47.871 INFO [stderr] section. You may also move the files to a location where Cargo would not
Dec 02 08:56:47.871 INFO [stderr] automatically infer them to be a target, such as in subfolders.
Dec 02 08:56:47.871 INFO [stderr] 
Dec 02 08:56:47.871 INFO [stderr] For more information on this warning you can consult
Dec 02 08:56:47.871 INFO [stderr] https://github.com/rust-lang/cargo/issues/5330
Dec 02 08:56:47.871 INFO [stderr] warning: path `/source/src/main.rs` was erroneously implicitly accepted for binary `main`,
Dec 02 08:56:47.871 INFO [stderr] please set bin.path in Cargo.toml
Dec 02 08:56:47.875 INFO [stderr]    Compiling learn v0.1.0 (/source)
Dec 02 08:56:49.328 INFO [stderr] warning: variable does not need to be mutable
Dec 02 08:56:49.328 INFO [stderr]   --> src/bin/mthread.rs:11:9
Dec 02 08:56:49.328 INFO [stderr]    |
Dec 02 08:56:49.328 INFO [stderr] 11 |     let mut ptr = Arc::new(Mutex::new("hello world!".chars()));
Dec 02 08:56:49.328 INFO [stderr]    |         ----^^^
Dec 02 08:56:49.328 INFO [stderr]    |         |
Dec 02 08:56:49.328 INFO [stderr]    |         help: remove this `mut`
Dec 02 08:56:49.331 INFO [stderr]    |
Dec 02 08:56:49.331 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 02 08:56:49.331 INFO [stderr] 
Dec 02 08:56:49.331 INFO [stderr] warning: variable does not need to be mutable
Dec 02 08:56:49.331 INFO [stderr]   --> src/bin/mthread.rs:27:13
Dec 02 08:56:49.331 INFO [stderr]    |
Dec 02 08:56:49.331 INFO [stderr] 27 |         let mut ptr = ptr.clone();
Dec 02 08:56:49.331 INFO [stderr]    |             ----^^^
Dec 02 08:56:49.331 INFO [stderr]    |             |
Dec 02 08:56:49.331 INFO [stderr]    |             help: remove this `mut`
Dec 02 08:56:49.331 INFO [stderr] 
Dec 02 08:56:49.331 INFO [stderr] warning: variable does not need to be mutable
Dec 02 08:56:49.331 INFO [stderr]   --> src/bin/mthread.rs:29:13
Dec 02 08:56:49.331 INFO [stderr]    |
Dec 02 08:56:49.331 INFO [stderr] 29 |         let mut tx = tx.clone();
Dec 02 08:56:49.331 INFO [stderr]    |             ----^^
Dec 02 08:56:49.331 INFO [stderr]    |             |
Dec 02 08:56:49.331 INFO [stderr]    |             help: remove this `mut`
Dec 02 08:56:49.331 INFO [stderr] 
Dec 02 08:56:49.333 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 02 08:56:49.333 INFO [stderr]   --> src/bin/mthread.rs:20:21
Dec 02 08:56:49.333 INFO [stderr]    |
Dec 02 08:56:49.333 INFO [stderr] 20 |                     a.send(1);
Dec 02 08:56:49.333 INFO [stderr]    |                     ^^^^^^^^^^
Dec 02 08:56:49.333 INFO [stderr]    |
Dec 02 08:56:49.333 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 02 08:56:49.339 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 02 08:56:49.339 INFO [stderr] 
Dec 02 08:56:49.345 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 02 08:56:49.345 INFO [stderr]   --> src/bin/mthread.rs:34:17
Dec 02 08:56:49.345 INFO [stderr]    |
Dec 02 08:56:49.345 INFO [stderr] 34 |                 tx.send(d);
Dec 02 08:56:49.345 INFO [stderr]    |                 ^^^^^^^^^^^
Dec 02 08:56:49.345 INFO [stderr]    |
Dec 02 08:56:49.345 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 02 08:56:49.345 INFO [stderr] 
Dec 02 08:56:50.383 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.54s
Dec 02 08:56:50.386 INFO [stderr] su: No module specific data is present
Dec 02 08:56:51.674 INFO running `"docker" "inspect" "bf5614b472855312bcddd6142bf010ddb07e8530c266d0d1046076f1a65d891f"`
Dec 02 08:56:51.989 INFO running `"docker" "rm" "-f" "bf5614b472855312bcddd6142bf010ddb07e8530c266d0d1046076f1a65d891f"`
Dec 02 08:56:52.377 INFO [stdout] bf5614b472855312bcddd6142bf010ddb07e8530c266d0d1046076f1a65d891f
Dec 02 08:56:52.383 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-5/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/beta-1.31-5/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/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 +8940af3cea4a9a9deabcaf843b2f8cad9a83fc61-alt test --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 02 08:56:52.858 INFO [stdout] 6d338b74070a47a1a360edd4b4ba2fcdd044df86dfe5d6764ce8d60c0cb4004c
Dec 02 08:56:52.865 INFO running `"docker" "start" "-a" "6d338b74070a47a1a360edd4b4ba2fcdd044df86dfe5d6764ce8d60c0cb4004c"`
Dec 02 08:56:54.351 INFO [stderr] usermod: no changes
Dec 02 08:56:54.416 INFO [stderr] warning: An explicit [[bin]] section is specified in Cargo.toml which currently
Dec 02 08:56:54.417 INFO [stderr] disables Cargo from automatically inferring other binary targets.
Dec 02 08:56:54.417 INFO [stderr] This inference behavior will change in the Rust 2018 edition and the following
Dec 02 08:56:54.417 INFO [stderr] files will be included as a binary target:
Dec 02 08:56:54.417 INFO [stderr] 
Dec 02 08:56:54.417 INFO [stderr] * /source/src/main.rs
Dec 02 08:56:54.417 INFO [stderr] 
Dec 02 08:56:54.417 INFO [stderr] This is likely to break cargo build or cargo test as these files may not be
Dec 02 08:56:54.417 INFO [stderr] ready to be compiled as a binary target today. You can future-proof yourself
Dec 02 08:56:54.417 INFO [stderr] and disable this warning by adding `autobins = false` to your [package]
Dec 02 08:56:54.417 INFO [stderr] section. You may also move the files to a location where Cargo would not
Dec 02 08:56:54.417 INFO [stderr] automatically infer them to be a target, such as in subfolders.
Dec 02 08:56:54.417 INFO [stderr] 
Dec 02 08:56:54.417 INFO [stderr] For more information on this warning you can consult
Dec 02 08:56:54.417 INFO [stderr] https://github.com/rust-lang/cargo/issues/5330
Dec 02 08:56:54.417 INFO [stderr] warning: path `/source/src/main.rs` was erroneously implicitly accepted for binary `main`,
Dec 02 08:56:54.417 INFO [stderr] please set bin.path in Cargo.toml
Dec 02 08:56:54.417 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
Dec 02 08:56:54.419 INFO [stderr]      Running /target/debug/deps/demo-02d851153ee6378a
Dec 02 08:56:54.439 INFO [stderr]      Running /target/debug/deps/main-eac8391de5b217b1
Dec 02 08:56:54.439 INFO [stdout] 
Dec 02 08:56:54.439 INFO [stdout] running 0 tests
Dec 02 08:56:54.439 INFO [stdout] 
Dec 02 08:56:54.439 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 02 08:56:54.439 INFO [stdout] 
Dec 02 08:56:54.447 INFO [stdout] 
Dec 02 08:56:54.447 INFO [stderr]      Running /target/debug/deps/mthread-ac7fad092d704314
Dec 02 08:56:54.447 INFO [stdout] running 0 tests
Dec 02 08:56:54.447 INFO [stdout] 
Dec 02 08:56:54.447 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 02 08:56:54.447 INFO [stdout] 
Dec 02 08:56:54.451 INFO [stdout] 
Dec 02 08:56:54.451 INFO [stderr] su: No module specific data is present
Dec 02 08:56:54.451 INFO [stdout] running 0 tests
Dec 02 08:56:54.451 INFO [stdout] 
Dec 02 08:56:54.451 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 02 08:56:54.451 INFO [stdout] 
Dec 02 08:56:55.166 INFO running `"docker" "inspect" "6d338b74070a47a1a360edd4b4ba2fcdd044df86dfe5d6764ce8d60c0cb4004c"`
Dec 02 08:56:55.471 INFO running `"docker" "rm" "-f" "6d338b74070a47a1a360edd4b4ba2fcdd044df86dfe5d6764ce8d60c0cb4004c"`
Dec 02 08:56:55.883 INFO [stdout] 6d338b74070a47a1a360edd4b4ba2fcdd044df86dfe5d6764ce8d60c0cb4004c
