[INFO] cloning repository https://github.com/BarcodeResource/rust_barcode
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/BarcodeResource/rust_barcode" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBarcodeResource%2Frust_barcode", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBarcodeResource%2Frust_barcode'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4d72c493948ae6c38dc520c89ffb08d03ec3f6d8
[INFO] checking BarcodeResource/rust_barcode against master#db870ea71b6dcc7a91b999420b88f41d3cdd13e1 for pr-75192
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBarcodeResource%2Frust_barcode" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/BarcodeResource/rust_barcode on toolchain db870ea71b6dcc7a91b999420b88f41d3cdd13e1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db870ea71b6dcc7a91b999420b88f41d3cdd13e1" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/BarcodeResource/rust_barcode
[INFO] finished tweaking git repo https://github.com/BarcodeResource/rust_barcode
[INFO] tweaked toml for git repo https://github.com/BarcodeResource/rust_barcode written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/BarcodeResource/rust_barcode already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db870ea71b6dcc7a91b999420b88f41d3cdd13e1" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:e18d859f9e32a1da89bc7b2d7d51e13b57342044d1295d9fc0dd0068c58eb3d1" "/opt/rustwide/cargo-home/bin/cargo" "+db870ea71b6dcc7a91b999420b88f41d3cdd13e1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d6b05ae09597e2e8a68556e104cf7da11e5caa5cf1762a5b0969b27d8d331b57
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "d6b05ae09597e2e8a68556e104cf7da11e5caa5cf1762a5b0969b27d8d331b57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d6b05ae09597e2e8a68556e104cf7da11e5caa5cf1762a5b0969b27d8d331b57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d6b05ae09597e2e8a68556e104cf7da11e5caa5cf1762a5b0969b27d8d331b57", kill_on_drop: false }`
[INFO] [stdout] d6b05ae09597e2e8a68556e104cf7da11e5caa5cf1762a5b0969b27d8d331b57
[INFO] running `Command { std: "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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:e18d859f9e32a1da89bc7b2d7d51e13b57342044d1295d9fc0dd0068c58eb3d1" "/opt/rustwide/cargo-home/bin/cargo" "+db870ea71b6dcc7a91b999420b88f41d3cdd13e1" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 79554d36f7a68303b3ac8b7145e0d2a82ee4cb6f40defa191037ecb3aceadf74
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "79554d36f7a68303b3ac8b7145e0d2a82ee4cb6f40defa191037ecb3aceadf74", kill_on_drop: false }`
[INFO] [stderr]     Checking barcode_command v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/barcode/postnet.rs:48:30
[INFO] [stdout]    |
[INFO] [stdout] 48 |                     result = (10 - result);
[INFO] [stdout]    |                              ^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/barcode/postnet.rs:48:30
[INFO] [stdout]    |
[INFO] [stdout] 48 |                     result = (10 - result);
[INFO] [stdout]    |                              ^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `str_result` is never read
[INFO] [stdout]   --> src/barcode/industrial2of5.rs:25:21
[INFO] [stdout]    |
[INFO] [stdout] 25 |                 let mut str_result:String = "".to_string();
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `cd` is never read
[INFO] [stdout]   --> src/barcode/postnet.rs:83:21
[INFO] [stdout]    |
[INFO] [stdout] 83 |                 let mut cd="".to_string();
[INFO] [stdout]    |                     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `str_result` is never read
[INFO] [stdout]   --> src/barcode/industrial2of5.rs:25:21
[INFO] [stdout]    |
[INFO] [stdout] 25 |                 let mut str_result:String = "".to_string();
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `cd` is never read
[INFO] [stdout]   --> src/barcode/postnet.rs:83:21
[INFO] [stdout]    |
[INFO] [stdout] 83 |                 let mut cd="".to_string();
[INFO] [stdout]    |                     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.68s
[INFO] running `Command { std: "docker" "inspect" "79554d36f7a68303b3ac8b7145e0d2a82ee4cb6f40defa191037ecb3aceadf74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "79554d36f7a68303b3ac8b7145e0d2a82ee4cb6f40defa191037ecb3aceadf74", kill_on_drop: false }`
[INFO] [stdout] 79554d36f7a68303b3ac8b7145e0d2a82ee4cb6f40defa191037ecb3aceadf74