Nov 18 08:25:44.457 INFO testing jec-rccow-0.1.0 against try#2e026d6e5d7621634147ad4c8074f1d964dbb1be for pr-55982
Nov 18 08:25:44.459 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 18 08:25:44.866 INFO [stdout] ece7e6c1df39021ab52e67c384eabaa68afee3f0da4f63d63d49200aa920bfcc
Nov 18 08:25:44.868 INFO running `"docker" "start" "-a" "ece7e6c1df39021ab52e67c384eabaa68afee3f0da4f63d63d49200aa920bfcc"`
Nov 18 08:25:45.915 INFO [stderr] usermod: no changes
Nov 18 08:25:45.959 INFO [stderr]    Compiling jec-rccow v0.1.0 (/source)
Nov 18 08:25:46.300 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.36s
Nov 18 08:25:46.302 INFO [stderr] su: No module specific data is present
Nov 18 08:25:46.619 INFO running `"docker" "inspect" "ece7e6c1df39021ab52e67c384eabaa68afee3f0da4f63d63d49200aa920bfcc"`
Nov 18 08:25:46.740 INFO running `"docker" "rm" "-f" "ece7e6c1df39021ab52e67c384eabaa68afee3f0da4f63d63d49200aa920bfcc"`
Nov 18 08:25:46.815 INFO [stdout] ece7e6c1df39021ab52e67c384eabaa68afee3f0da4f63d63d49200aa920bfcc
Nov 18 08:25:46.817 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 18 08:25:47.055 INFO [stdout] b08a4f0721cd7d9639a1bf1bb393328065e8cac46f743956809bb4b17594c79f
Nov 18 08:25:47.061 INFO running `"docker" "start" "-a" "b08a4f0721cd7d9639a1bf1bb393328065e8cac46f743956809bb4b17594c79f"`
Nov 18 08:25:47.517 INFO [stderr] usermod: no changes
Nov 18 08:25:47.543 INFO [stderr]    Compiling jec-rccow v0.1.0 (/source)
Nov 18 08:25:47.843 INFO [stderr] warning: variable does not need to be mutable
Nov 18 08:25:47.843 INFO [stderr]   --> src/lib.rs:73:13
Nov 18 08:25:47.843 INFO [stderr]    |
Nov 18 08:25:47.843 INFO [stderr] 73 |         let mut a = RcCow::new(5i32);
Nov 18 08:25:47.843 INFO [stderr]    |             ----^
Nov 18 08:25:47.843 INFO [stderr]    |             |
Nov 18 08:25:47.843 INFO [stderr]    |             help: remove this `mut`
Nov 18 08:25:47.843 INFO [stderr]    |
Nov 18 08:25:47.843 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 18 08:25:47.843 INFO [stderr] 
Nov 18 08:25:47.843 INFO [stderr] warning: variable does not need to be mutable
Nov 18 08:25:47.843 INFO [stderr]   --> src/lib.rs:77:13
Nov 18 08:25:47.843 INFO [stderr]    |
Nov 18 08:25:47.843 INFO [stderr] 77 |         let mut c = b.clone();
Nov 18 08:25:47.843 INFO [stderr]    |             ----^
Nov 18 08:25:47.843 INFO [stderr]    |             |
Nov 18 08:25:47.843 INFO [stderr]    |             help: remove this `mut`
Nov 18 08:25:47.843 INFO [stderr] 
Nov 18 08:25:48.134 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.60s
Nov 18 08:25:48.136 INFO [stderr] su: No module specific data is present
Nov 18 08:25:48.478 INFO running `"docker" "inspect" "b08a4f0721cd7d9639a1bf1bb393328065e8cac46f743956809bb4b17594c79f"`
Nov 18 08:25:48.630 INFO running `"docker" "rm" "-f" "b08a4f0721cd7d9639a1bf1bb393328065e8cac46f743956809bb4b17594c79f"`
Nov 18 08:25:48.755 INFO [stdout] b08a4f0721cd7d9639a1bf1bb393328065e8cac46f743956809bb4b17594c79f