[INFO] updating cached repository squidarth/optimal-line-length
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/squidarth/optimal-line-length
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/squidarth/optimal-line-length" "work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/squidarth/optimal-line-length"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/squidarth/optimal-line-length'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/squidarth/optimal-line-length" "work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/squidarth/optimal-line-length"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/squidarth/optimal-line-length'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 8daab2974035469ebe2c850347dcff48bb49dd3a
[INFO] sha for GitHub repo squidarth/optimal-line-length: 8daab2974035469ebe2c850347dcff48bb49dd3a
[INFO] validating manifest of squidarth/optimal-line-length on toolchain master#e305df1846a6d985315917ae0c81b74af8b4e641
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of squidarth/optimal-line-length on toolchain try#99a7498759a22b5684caf798a98b7e90ad9d2443
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing squidarth/optimal-line-length
[INFO] finished frobbing squidarth/optimal-line-length
[INFO] frobbed toml for squidarth/optimal-line-length written to work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/squidarth/optimal-line-length/Cargo.toml
[INFO] started frobbing squidarth/optimal-line-length
[INFO] finished frobbing squidarth/optimal-line-length
[INFO] frobbed toml for squidarth/optimal-line-length written to work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/squidarth/optimal-line-length/Cargo.toml
[INFO] crate squidarth/optimal-line-length already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking squidarth/optimal-line-length against master#e305df1846a6d985315917ae0c81b74af8b4e641 for pr-60039-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-60039-1/worker-5/master#e305df1846a6d985315917ae0c81b74af8b4e641:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/squidarth/optimal-line-length:/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" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] da25c0e64fd75f9a0b37cb51fc8ad0df74019a20587b2c98b3ab4be70eff1fb9
[INFO] running `"docker" "start" "-a" "da25c0e64fd75f9a0b37cb51fc8ad0df74019a20587b2c98b3ab4be70eff1fb9"`
[INFO] [stderr]     Checking line_breaks v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:50:19
[INFO] [stderr]    |
[INFO] [stderr] 50 |               let mut previous_cost: i32;
[INFO] [stderr]    |                   ----^^^^^^^^^^^^^
[INFO] [stderr]    |                   |
[INFO] [stderr]    |                   help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:50:19
[INFO] [stderr]    |
[INFO] [stderr] 50 |               let mut previous_cost: i32;
[INFO] [stderr]    |                   ----^^^^^^^^^^^^^
[INFO] [stderr]    |                   |
[INFO] [stderr]    |                   help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.27s
[INFO] running `"docker" "inspect" "da25c0e64fd75f9a0b37cb51fc8ad0df74019a20587b2c98b3ab4be70eff1fb9"`
[INFO] running `"docker" "rm" "-f" "da25c0e64fd75f9a0b37cb51fc8ad0df74019a20587b2c98b3ab4be70eff1fb9"`
[INFO] [stdout] da25c0e64fd75f9a0b37cb51fc8ad0df74019a20587b2c98b3ab4be70eff1fb9