[INFO] cloning repository jmatta697/matta_bc
[INFO] running `"git" "clone" "--bare" "git://github.com/jmatta697/matta_bc.git" "work/cache/sources/gh/jmatta697/matta_bc"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/jmatta697/matta_bc'...
[INFO] running `"git" "clone" "work/cache/sources/gh/jmatta697/matta_bc" "work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/jmatta697/matta_bc"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/jmatta697/matta_bc'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/jmatta697/matta_bc" "work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/jmatta697/matta_bc"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/jmatta697/matta_bc'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 3ead6621c2c413d844175868839063592f32468c
[INFO] sha for GitHub repo jmatta697/matta_bc: 3ead6621c2c413d844175868839063592f32468c
[INFO] validating manifest of jmatta697/matta_bc on toolchain master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of jmatta697/matta_bc on toolchain try#8f81d0bf6baf07b92f1246696722485c4ca0b049
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing jmatta697/matta_bc
[INFO] finished frobbing jmatta697/matta_bc
[INFO] frobbed toml for jmatta697/matta_bc written to work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/jmatta697/matta_bc/Cargo.toml
[INFO] started frobbing jmatta697/matta_bc
[INFO] finished frobbing jmatta697/matta_bc
[INFO] frobbed toml for jmatta697/matta_bc written to work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/jmatta697/matta_bc/Cargo.toml
[INFO] crate jmatta697/matta_bc already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking jmatta697/matta_bc against master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1 for pr-62008
[INFO] running `"docker" "create" "-v" "/mnt/big/ec2-user/crater/work/local/target-dirs/pr-62008/worker-7/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1:/opt/crater/target:rw,Z" "-v" "/mnt/big/ec2-user/crater/work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/jmatta697/matta_bc:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/ec2-user/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/ec2-user/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" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] d0397bc47a2bc7493c5bf07349ebcb4acb1d308fcdadc1702fd1b6e402962a35
[INFO] running `"docker" "start" "-a" "d0397bc47a2bc7493c5bf07349ebcb4acb1d308fcdadc1702fd1b6e402962a35"`
[INFO] [stderr]     Checking memchr v2.1.1
[INFO] [stderr]     Checking aho-corasick v0.6.9
[INFO] [stderr]     Checking regex v1.0.6
[INFO] [stderr]     Checking matta_bc v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: value assigned to `variable_value_str` is never read
[INFO] [stderr]    --> src/main.rs:424:13
[INFO] [stderr]     |
[INFO] [stderr] 424 |     let mut variable_value_str = String::new();
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_assignments)] on by default
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `variable_value_str` is never read
[INFO] [stderr]    --> src/main.rs:424:13
[INFO] [stderr]     |
[INFO] [stderr] 424 |     let mut variable_value_str = String::new();
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_assignments)] on by default
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.53s
[INFO] running `"docker" "inspect" "d0397bc47a2bc7493c5bf07349ebcb4acb1d308fcdadc1702fd1b6e402962a35"`
[INFO] running `"docker" "rm" "-f" "d0397bc47a2bc7493c5bf07349ebcb4acb1d308fcdadc1702fd1b6e402962a35"`
[INFO] [stdout] d0397bc47a2bc7493c5bf07349ebcb4acb1d308fcdadc1702fd1b6e402962a35