[INFO] cloning repository https://github.com/lf94/png2linetext
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lf94/png2linetext" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flf94%2Fpng2linetext", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flf94%2Fpng2linetext'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fdcb81b1394f6c64f5d9b56de8145aef815070ce
[INFO] testing lf94/png2linetext against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flf94%2Fpng2linetext" "/workspace/builds/worker-100/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-100/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lf94/png2linetext on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/lf94/png2linetext
[INFO] finished tweaking git repo https://github.com/lf94/png2linetext
[INFO] tweaked toml for git repo https://github.com/lf94/png2linetext written to /workspace/builds/worker-100/source/Cargo.toml
[INFO] crate git repo https://github.com/lf94/png2linetext already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b27178ebe1b68c10a7ef9d34d8e0b6574c7096275afe992bf4f1cc9027c8e245
[INFO] running `Command { std: "docker" "start" "-a" "b27178ebe1b68c10a7ef9d34d8e0b6574c7096275afe992bf4f1cc9027c8e245", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b27178ebe1b68c10a7ef9d34d8e0b6574c7096275afe992bf4f1cc9027c8e245", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b27178ebe1b68c10a7ef9d34d8e0b6574c7096275afe992bf4f1cc9027c8e245", kill_on_drop: false }`
[INFO] [stdout] b27178ebe1b68c10a7ef9d34d8e0b6574c7096275afe992bf4f1cc9027c8e245
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/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=warn" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 102d37fc6052458f9d238a1267b136bcb422cf349e48781b52f848ebbff6352f
[INFO] running `Command { std: "docker" "start" "-a" "102d37fc6052458f9d238a1267b136bcb422cf349e48781b52f848ebbff6352f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling img2utf v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `dot_matrix_print`
[INFO] [stdout]    --> src/main.rs:501:4
[INFO] [stdout]     |
[INFO] [stdout] 501 | fn dot_matrix_print(buf: Vec<Vec<u8>>) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.83s
[INFO] running `Command { std: "docker" "inspect" "102d37fc6052458f9d238a1267b136bcb422cf349e48781b52f848ebbff6352f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "102d37fc6052458f9d238a1267b136bcb422cf349e48781b52f848ebbff6352f", kill_on_drop: false }`
[INFO] [stdout] 102d37fc6052458f9d238a1267b136bcb422cf349e48781b52f848ebbff6352f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/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=warn" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b098b799b2c38c0ecdb95fba68dbb46a19db5761bc9c93f201bdd2ad80e53be0
[INFO] running `Command { std: "docker" "start" "-a" "b098b799b2c38c0ecdb95fba68dbb46a19db5761bc9c93f201bdd2ad80e53be0", kill_on_drop: false }`
[INFO] [stderr]    Compiling img2utf v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `dot_matrix_print`
[INFO] [stdout]    --> src/main.rs:501:4
[INFO] [stdout]     |
[INFO] [stdout] 501 | fn dot_matrix_print(buf: Vec<Vec<u8>>) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.66s
[INFO] running `Command { std: "docker" "inspect" "b098b799b2c38c0ecdb95fba68dbb46a19db5761bc9c93f201bdd2ad80e53be0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b098b799b2c38c0ecdb95fba68dbb46a19db5761bc9c93f201bdd2ad80e53be0", kill_on_drop: false }`
[INFO] [stdout] b098b799b2c38c0ecdb95fba68dbb46a19db5761bc9c93f201bdd2ad80e53be0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/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=warn" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] cd808f5a153abde450e965bbb3244facdb708c00ca6ad24763a6edbcd1f8126e
[INFO] running `Command { std: "docker" "start" "-a" "cd808f5a153abde450e965bbb3244facdb708c00ca6ad24763a6edbcd1f8126e", kill_on_drop: false }`
[INFO] [stderr] warning: function is never used: `dot_matrix_print`
[INFO] [stderr]    --> src/main.rs:501:4
[INFO] [stderr]     |
[INFO] [stderr] 501 | fn dot_matrix_print(buf: Vec<Vec<u8>>) {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `img2utf` (bin "img2utf" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/img2utf-b9be5236f5aaf5a2)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "cd808f5a153abde450e965bbb3244facdb708c00ca6ad24763a6edbcd1f8126e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd808f5a153abde450e965bbb3244facdb708c00ca6ad24763a6edbcd1f8126e", kill_on_drop: false }`
[INFO] [stdout] cd808f5a153abde450e965bbb3244facdb708c00ca6ad24763a6edbcd1f8126e