Dec 19 15:05:14.565 INFO checking jmatta697/matta_bc against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 15:05:14.565 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-0/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/jmatta697/matta_bc:/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" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 15:05:14.813 INFO [stdout] ab200d053dc4b83ee126137719ce45bbf49b81a120a164176cf3cccb2f28b75d
Dec 19 15:05:14.818 INFO running `"docker" "start" "-a" "ab200d053dc4b83ee126137719ce45bbf49b81a120a164176cf3cccb2f28b75d"`
Dec 19 15:05:15.541 INFO [stderr]     Checking memchr v2.1.1
Dec 19 15:05:16.267 INFO [stderr]     Checking aho-corasick v0.6.9
Dec 19 15:05:16.840 INFO [stderr]     Checking regex v1.0.6
Dec 19 15:05:19.113 INFO [stderr]     Checking matta_bc v0.1.0 (/opt/crater/workdir)
Dec 19 15:05:19.552 INFO [stderr] warning: value assigned to `variable_value_str` is never read
Dec 19 15:05:19.552 INFO [stderr]    --> src/main.rs:424:13
Dec 19 15:05:19.552 INFO [stderr]     |
Dec 19 15:05:19.552 INFO [stderr] 424 |     let mut variable_value_str = String::new();
Dec 19 15:05:19.552 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^
Dec 19 15:05:19.552 INFO [stderr]     |
Dec 19 15:05:19.552 INFO [stderr]     = note: #[warn(unused_assignments)] on by default
Dec 19 15:05:19.552 INFO [stderr]     = help: maybe it is overwritten before being read?
Dec 19 15:05:19.553 INFO [stderr] 
Dec 19 15:05:19.872 INFO [stderr] warning: value assigned to `variable_value_str` is never read
Dec 19 15:05:19.872 INFO [stderr]    --> src/main.rs:424:13
Dec 19 15:05:19.872 INFO [stderr]     |
Dec 19 15:05:19.872 INFO [stderr] 424 |     let mut variable_value_str = String::new();
Dec 19 15:05:19.872 INFO [stderr]     |             ^^^^^^^^^^^^^^^^^^
Dec 19 15:05:19.872 INFO [stderr]     |
Dec 19 15:05:19.872 INFO [stderr]     = note: #[warn(unused_assignments)] on by default
Dec 19 15:05:19.872 INFO [stderr]     = help: maybe it is overwritten before being read?
Dec 19 15:05:19.872 INFO [stderr] 
Dec 19 15:05:20.159 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.68s
Dec 19 15:05:20.722 INFO running `"docker" "inspect" "ab200d053dc4b83ee126137719ce45bbf49b81a120a164176cf3cccb2f28b75d"`
Dec 19 15:05:20.867 INFO running `"docker" "rm" "-f" "ab200d053dc4b83ee126137719ce45bbf49b81a120a164176cf3cccb2f28b75d"`
Dec 19 15:05:21.090 INFO [stdout] ab200d053dc4b83ee126137719ce45bbf49b81a120a164176cf3cccb2f28b75d