[INFO] fetching crate barcode_command 0.1.1...
[INFO] checking barcode_command-0.1.1 against master#914adf04af1c1a984707f778da3d04590c03d144 for pr-72331
[INFO] extracting crate barcode_command 0.1.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate barcode_command 0.1.1 on toolchain 914adf04af1c1a984707f778da3d04590c03d144
[INFO] running `"/workspace/cargo-home/bin/cargo" "+914adf04af1c1a984707f778da3d04590c03d144" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate barcode_command 0.1.1
[INFO] finished tweaking crates.io crate barcode_command 0.1.1
[INFO] tweaked toml for crates.io crate barcode_command 0.1.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate barcode_command 0.1.1 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+914adf04af1c1a984707f778da3d04590c03d144" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+914adf04af1c1a984707f778da3d04590c03d144" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] acc1d0181a690ec784cad47de37b41bbe8a0525d540b7c5506f74dd15676f512
[INFO] running `"docker" "start" "-a" "acc1d0181a690ec784cad47de37b41bbe8a0525d540b7c5506f74dd15676f512"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking barcode_command v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]   --> src/barcode/postnet.rs:48:30
[INFO] [stderr]    |
[INFO] [stderr] 48 |                     result = (10 - result);
[INFO] [stderr]    |                              ^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around assigned value
[INFO] [stderr]   --> src/barcode/postnet.rs:48:30
[INFO] [stderr]    |
[INFO] [stderr] 48 |                     result = (10 - result);
[INFO] [stderr]    |                              ^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `str_result` is never read
[INFO] [stderr]   --> src/barcode/industrial2of5.rs:25:21
[INFO] [stderr]    |
[INFO] [stderr] 25 |                 let mut str_result:String = "".to_string();
[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 `cd` is never read
[INFO] [stderr]   --> src/barcode/postnet.rs:83:21
[INFO] [stderr]    |
[INFO] [stderr] 83 |                 let mut cd="".to_string();
[INFO] [stderr]    |                     ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `str_result` is never read
[INFO] [stderr]   --> src/barcode/industrial2of5.rs:25:21
[INFO] [stderr]    |
[INFO] [stderr] 25 |                 let mut str_result:String = "".to_string();
[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 `cd` is never read
[INFO] [stderr]   --> src/barcode/postnet.rs:83:21
[INFO] [stderr]    |
[INFO] [stderr] 83 |                 let mut cd="".to_string();
[INFO] [stderr]    |                     ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.85s
[INFO] running `"docker" "inspect" "acc1d0181a690ec784cad47de37b41bbe8a0525d540b7c5506f74dd15676f512"`
[INFO] running `"docker" "rm" "-f" "acc1d0181a690ec784cad47de37b41bbe8a0525d540b7c5506f74dd15676f512"`
[INFO] [stdout] acc1d0181a690ec784cad47de37b41bbe8a0525d540b7c5506f74dd15676f512