Nov 18 14:35:31.762 INFO testing fast_io-1.2.2 against try#2e026d6e5d7621634147ad4c8074f1d964dbb1be for pr-55982
Nov 18 14:35:31.762 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-5/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/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 14:35:31.970 INFO [stdout] 6e5eb6af0d8c6542ac4929fcccba2bbf3d7b9b9fde9f46fa3cb6ad6364406e77
Nov 18 14:35:31.976 INFO running `"docker" "start" "-a" "6e5eb6af0d8c6542ac4929fcccba2bbf3d7b9b9fde9f46fa3cb6ad6364406e77"`
Nov 18 14:35:33.564 INFO [stderr] usermod: no changes
Nov 18 14:35:33.603 INFO [stderr]    Compiling fast_io v1.2.2 (/source)
Nov 18 14:35:34.043 INFO [stderr] warning: variable does not need to be mutable
Nov 18 14:35:34.043 INFO [stderr]   --> src/copy_io.rs:17:13
Nov 18 14:35:34.043 INFO [stderr]    |
Nov 18 14:35:34.043 INFO [stderr] 17 |         let mut buffer = unsafe {
Nov 18 14:35:34.043 INFO [stderr]    |             ----^^^^^^
Nov 18 14:35:34.043 INFO [stderr]    |             |
Nov 18 14:35:34.043 INFO [stderr]    |             help: remove this `mut`
Nov 18 14:35:34.043 INFO [stderr]    |
Nov 18 14:35:34.043 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 18 14:35:34.043 INFO [stderr] 
Nov 18 14:35:34.043 INFO [stderr] warning: variable does not need to be mutable
Nov 18 14:35:34.043 INFO [stderr]   --> src/copy_io.rs:38:17
Nov 18 14:35:34.043 INFO [stderr]    |
Nov 18 14:35:34.043 INFO [stderr] 38 |             let mut buffer = slice::from_raw_parts_mut(
Nov 18 14:35:34.043 INFO [stderr]    |                 ----^^^^^^
Nov 18 14:35:34.043 INFO [stderr]    |                 |
Nov 18 14:35:34.043 INFO [stderr]    |                 help: remove this `mut`
Nov 18 14:35:34.043 INFO [stderr] 
Nov 18 14:35:34.102 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.51s
Nov 18 14:35:34.108 INFO [stderr] su: No module specific data is present
Nov 18 14:35:34.502 INFO running `"docker" "inspect" "6e5eb6af0d8c6542ac4929fcccba2bbf3d7b9b9fde9f46fa3cb6ad6364406e77"`
Nov 18 14:35:34.612 INFO running `"docker" "rm" "-f" "6e5eb6af0d8c6542ac4929fcccba2bbf3d7b9b9fde9f46fa3cb6ad6364406e77"`
Nov 18 14:35:34.757 INFO [stdout] 6e5eb6af0d8c6542ac4929fcccba2bbf3d7b9b9fde9f46fa3cb6ad6364406e77
Nov 18 14:35:34.757 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-5/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/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 14:35:34.938 INFO [stdout] d32817b59fd6996fe4d47aa49fb9a1f0ac2c1a38e248e7d2f7d5c803eec2515c
Nov 18 14:35:34.973 INFO running `"docker" "start" "-a" "d32817b59fd6996fe4d47aa49fb9a1f0ac2c1a38e248e7d2f7d5c803eec2515c"`
Nov 18 14:35:35.883 INFO [stderr] usermod: no changes
Nov 18 14:35:35.927 INFO [stderr]    Compiling fast_io v1.2.2 (/source)
Nov 18 14:35:36.618 INFO [stderr] warning: variable does not need to be mutable
Nov 18 14:35:36.618 INFO [stderr]   --> src/copy_io.rs:17:13
Nov 18 14:35:36.618 INFO [stderr]    |
Nov 18 14:35:36.618 INFO [stderr] 17 |         let mut buffer = unsafe {
Nov 18 14:35:36.618 INFO [stderr]    |             ----^^^^^^
Nov 18 14:35:36.618 INFO [stderr]    |             |
Nov 18 14:35:36.618 INFO [stderr]    |             help: remove this `mut`
Nov 18 14:35:36.618 INFO [stderr]    |
Nov 18 14:35:36.618 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 18 14:35:36.618 INFO [stderr] 
Nov 18 14:35:36.626 INFO [stderr] warning: variable does not need to be mutable
Nov 18 14:35:36.626 INFO [stderr]   --> src/copy_io.rs:38:17
Nov 18 14:35:36.626 INFO [stderr]    |
Nov 18 14:35:36.626 INFO [stderr] 38 |             let mut buffer = slice::from_raw_parts_mut(
Nov 18 14:35:36.626 INFO [stderr]    |                 ----^^^^^^
Nov 18 14:35:36.626 INFO [stderr]    |                 |
Nov 18 14:35:36.626 INFO [stderr]    |                 help: remove this `mut`
Nov 18 14:35:36.626 INFO [stderr] 
Nov 18 14:35:37.387 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.47s
Nov 18 14:35:37.387 INFO [stderr] su: No module specific data is present
Nov 18 14:35:38.035 INFO running `"docker" "inspect" "d32817b59fd6996fe4d47aa49fb9a1f0ac2c1a38e248e7d2f7d5c803eec2515c"`
Nov 18 14:35:38.184 INFO running `"docker" "rm" "-f" "d32817b59fd6996fe4d47aa49fb9a1f0ac2c1a38e248e7d2f7d5c803eec2515c"`
Nov 18 14:35:38.362 INFO [stdout] d32817b59fd6996fe4d47aa49fb9a1f0ac2c1a38e248e7d2f7d5c803eec2515c