Dec 03 12:17:54.547 INFO testing fast_io-1.2.2 against master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61 for beta-1.31-5
Dec 03 12:17:54.548 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 03 12:17:55.117 INFO [stdout] 6845e36a88b85846c4b2892d2a72a5a250edf6cb1280e5c777bdf4d71d8e74c8
Dec 03 12:17:55.119 INFO running `"docker" "start" "-a" "6845e36a88b85846c4b2892d2a72a5a250edf6cb1280e5c777bdf4d71d8e74c8"`
Dec 03 12:17:56.552 INFO [stderr] usermod: no changes
Dec 03 12:17:56.648 INFO [stderr]    Compiling fast_io v1.2.2 (/source)
Dec 03 12:17:57.411 INFO [stderr] warning: variable does not need to be mutable
Dec 03 12:17:57.411 INFO [stderr]   --> src/copy_io.rs:17:13
Dec 03 12:17:57.411 INFO [stderr]    |
Dec 03 12:17:57.411 INFO [stderr] 17 |         let mut buffer = unsafe {
Dec 03 12:17:57.411 INFO [stderr]    |             ----^^^^^^
Dec 03 12:17:57.411 INFO [stderr]    |             |
Dec 03 12:17:57.411 INFO [stderr]    |             help: remove this `mut`
Dec 03 12:17:57.419 INFO [stderr]    |
Dec 03 12:17:57.419 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 03 12:17:57.419 INFO [stderr] 
Dec 03 12:17:57.419 INFO [stderr] warning: variable does not need to be mutable
Dec 03 12:17:57.419 INFO [stderr]   --> src/copy_io.rs:38:17
Dec 03 12:17:57.419 INFO [stderr]    |
Dec 03 12:17:57.419 INFO [stderr] 38 |             let mut buffer = slice::from_raw_parts_mut(
Dec 03 12:17:57.419 INFO [stderr]    |                 ----^^^^^^
Dec 03 12:17:57.419 INFO [stderr]    |                 |
Dec 03 12:17:57.419 INFO [stderr]    |                 help: remove this `mut`
Dec 03 12:17:57.419 INFO [stderr] 
Dec 03 12:17:57.467 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.87s
Dec 03 12:17:57.473 INFO [stderr] su: No module specific data is present
Dec 03 12:17:58.082 INFO running `"docker" "inspect" "6845e36a88b85846c4b2892d2a72a5a250edf6cb1280e5c777bdf4d71d8e74c8"`
Dec 03 12:17:58.340 INFO running `"docker" "rm" "-f" "6845e36a88b85846c4b2892d2a72a5a250edf6cb1280e5c777bdf4d71d8e74c8"`
Dec 03 12:17:58.619 INFO [stdout] 6845e36a88b85846c4b2892d2a72a5a250edf6cb1280e5c777bdf4d71d8e74c8
Dec 03 12:17:58.621 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 03 12:17:59.116 INFO [stdout] 5d48982474b095f58541da2e0045ab183f42c1a0aeab837a8bf29dd92988645d
Dec 03 12:17:59.118 INFO running `"docker" "start" "-a" "5d48982474b095f58541da2e0045ab183f42c1a0aeab837a8bf29dd92988645d"`
Dec 03 12:18:00.216 INFO [stderr] usermod: no changes
Dec 03 12:18:00.264 INFO [stderr]    Compiling fast_io v1.2.2 (/source)
Dec 03 12:18:01.183 INFO [stderr] warning: variable does not need to be mutable
Dec 03 12:18:01.183 INFO [stderr]   --> src/copy_io.rs:17:13
Dec 03 12:18:01.183 INFO [stderr]    |
Dec 03 12:18:01.183 INFO [stderr] 17 |         let mut buffer = unsafe {
Dec 03 12:18:01.183 INFO [stderr]    |             ----^^^^^^
Dec 03 12:18:01.183 INFO [stderr]    |             |
Dec 03 12:18:01.183 INFO [stderr]    |             help: remove this `mut`
Dec 03 12:18:01.183 INFO [stderr]    |
Dec 03 12:18:01.183 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 03 12:18:01.183 INFO [stderr] 
Dec 03 12:18:01.183 INFO [stderr] warning: variable does not need to be mutable
Dec 03 12:18:01.183 INFO [stderr]   --> src/copy_io.rs:38:17
Dec 03 12:18:01.183 INFO [stderr]    |
Dec 03 12:18:01.183 INFO [stderr] 38 |             let mut buffer = slice::from_raw_parts_mut(
Dec 03 12:18:01.183 INFO [stderr]    |                 ----^^^^^^
Dec 03 12:18:01.183 INFO [stderr]    |                 |
Dec 03 12:18:01.183 INFO [stderr]    |                 help: remove this `mut`
Dec 03 12:18:01.183 INFO [stderr] 
Dec 03 12:18:01.916 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.67s
Dec 03 12:18:01.919 INFO [stderr] su: No module specific data is present
Dec 03 12:18:02.245 INFO running `"docker" "inspect" "5d48982474b095f58541da2e0045ab183f42c1a0aeab837a8bf29dd92988645d"`
Dec 03 12:18:02.352 INFO running `"docker" "rm" "-f" "5d48982474b095f58541da2e0045ab183f42c1a0aeab837a8bf29dd92988645d"`
Dec 03 12:18:02.480 INFO [stdout] 5d48982474b095f58541da2e0045ab183f42c1a0aeab837a8bf29dd92988645d
