[INFO] cloning repository vlttnv/rusty-shell
[INFO] running `"git" "clone" "--bare" "git://github.com/vlttnv/rusty-shell.git" "work/cache/sources/gh/vlttnv/rusty-shell"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/vlttnv/rusty-shell'...
[INFO] running `"git" "clone" "work/cache/sources/gh/vlttnv/rusty-shell" "work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/vlttnv/rusty-shell"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/vlttnv/rusty-shell'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/vlttnv/rusty-shell" "work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/vlttnv/rusty-shell"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/vlttnv/rusty-shell'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 32312888362183d17b23a778368864b9c7c54dae
[INFO] sha for GitHub repo vlttnv/rusty-shell: 32312888362183d17b23a778368864b9c7c54dae
[INFO] validating manifest of vlttnv/rusty-shell 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 vlttnv/rusty-shell 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 vlttnv/rusty-shell
[INFO] finished frobbing vlttnv/rusty-shell
[INFO] frobbed toml for vlttnv/rusty-shell written to work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/vlttnv/rusty-shell/Cargo.toml
[INFO] started frobbing vlttnv/rusty-shell
[INFO] finished frobbing vlttnv/rusty-shell
[INFO] frobbed toml for vlttnv/rusty-shell written to work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/vlttnv/rusty-shell/Cargo.toml
[INFO] crate vlttnv/rusty-shell 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] checking vlttnv/rusty-shell against try#8f81d0bf6baf07b92f1246696722485c4ca0b049 for pr-62008
[INFO] running `"docker" "create" "-v" "/mnt/big/ec2-user/crater/work/local/target-dirs/pr-62008/worker-5/try#8f81d0bf6baf07b92f1246696722485c4ca0b049:/opt/crater/target:rw,Z" "-v" "/mnt/big/ec2-user/crater/work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/vlttnv/rusty-shell:/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" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] fe4a8204c489e2c88a42b2d24a3de47801a9fdd331611894fd2996459632f2a7
[INFO] running `"docker" "start" "-a" "fe4a8204c489e2c88a42b2d24a3de47801a9fdd331611894fd2996459632f2a7"`
[INFO] [stderr]     Checking rusty_shell v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable `exit_code` is assigned to, but never used
[INFO] [stderr]   --> src/main.rs:27:13
[INFO] [stderr]    |
[INFO] [stderr] 27 |     let mut exit_code;
[INFO] [stderr]    |             ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr]    = note: consider using `_exit_code` instead
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `exit_code` is never read
[INFO] [stderr]   --> src/main.rs:41:9
[INFO] [stderr]    |
[INFO] [stderr] 41 |         exit_code = rsh_run(&args)
[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: variable `exit_code` is assigned to, but never used
[INFO] [stderr]   --> src/main.rs:27:13
[INFO] [stderr]    |
[INFO] [stderr] 27 |     let mut exit_code;
[INFO] [stderr]    |             ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr]    = note: consider using `_exit_code` instead
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `exit_code` is never read
[INFO] [stderr]   --> src/main.rs:41:9
[INFO] [stderr]    |
[INFO] [stderr] 41 |         exit_code = rsh_run(&args)
[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 0.60s
[INFO] running `"docker" "inspect" "fe4a8204c489e2c88a42b2d24a3de47801a9fdd331611894fd2996459632f2a7"`
[INFO] running `"docker" "rm" "-f" "fe4a8204c489e2c88a42b2d24a3de47801a9fdd331611894fd2996459632f2a7"`
[INFO] [stdout] fe4a8204c489e2c88a42b2d24a3de47801a9fdd331611894fd2996459632f2a7