Dec 18 14:37:39.664 INFO checking ktrace-0.1.0 against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 14:37:39.664 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-6/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/reg/ktrace/0.1.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 14:37:39.950 INFO [stdout] 7b569265fd6ff94839e79153e25e7de3e01cd077ab1ab0551f3d87d3cef80eaf
Dec 18 14:37:39.952 INFO running `"docker" "start" "-a" "7b569265fd6ff94839e79153e25e7de3e01cd077ab1ab0551f3d87d3cef80eaf"`
Dec 18 14:37:41.232 INFO [stderr]     Checking ktrace v0.1.0 (/opt/crater/workdir)
Dec 18 14:37:41.804 INFO [stderr] warning: variable does not need to be mutable
Dec 18 14:37:41.804 INFO [stderr]   --> src/lib.rs:30:17
Dec 18 14:37:41.804 INFO [stderr]    |
Dec 18 14:37:41.804 INFO [stderr] 30 | pub fn parse<E>(mut r: &mut io::Read) -> Result<Vec<(Header,Result<Record>)>>
Dec 18 14:37:41.804 INFO [stderr]    |                 ----^
Dec 18 14:37:41.804 INFO [stderr]    |                 |
Dec 18 14:37:41.804 INFO [stderr]    |                 help: remove this `mut`
Dec 18 14:37:41.804 INFO [stderr]    |
Dec 18 14:37:41.804 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 18 14:37:41.804 INFO [stderr] 
Dec 18 14:37:41.852 INFO [stderr] warning: variable does not need to be mutable
Dec 18 14:37:41.852 INFO [stderr]   --> src/lib.rs:30:17
Dec 18 14:37:41.852 INFO [stderr]    |
Dec 18 14:37:41.852 INFO [stderr] 30 | pub fn parse<E>(mut r: &mut io::Read) -> Result<Vec<(Header,Result<Record>)>>
Dec 18 14:37:41.852 INFO [stderr]    |                 ----^
Dec 18 14:37:41.852 INFO [stderr]    |                 |
Dec 18 14:37:41.852 INFO [stderr]    |                 help: remove this `mut`
Dec 18 14:37:41.852 INFO [stderr]    |
Dec 18 14:37:41.852 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 18 14:37:41.852 INFO [stderr] 
Dec 18 14:37:42.343 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.18s
Dec 18 14:37:42.713 INFO running `"docker" "inspect" "7b569265fd6ff94839e79153e25e7de3e01cd077ab1ab0551f3d87d3cef80eaf"`
Dec 18 14:37:42.868 INFO running `"docker" "rm" "-f" "7b569265fd6ff94839e79153e25e7de3e01cd077ab1ab0551f3d87d3cef80eaf"`
Dec 18 14:37:42.957 INFO [stdout] 7b569265fd6ff94839e79153e25e7de3e01cd077ab1ab0551f3d87d3cef80eaf