[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 master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flf94%2Fpng2linetext" "/workspace/builds/worker-109/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-109/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lf94/png2linetext on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "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-109/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" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "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-109/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-109/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 26655fd448495bc78a51ef7edace8a40778f194a6aa5ff6d0dde27be946ac27d
[INFO] running `Command { std: "docker" "start" "-a" "26655fd448495bc78a51ef7edace8a40778f194a6aa5ff6d0dde27be946ac27d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "26655fd448495bc78a51ef7edace8a40778f194a6aa5ff6d0dde27be946ac27d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "26655fd448495bc78a51ef7edace8a40778f194a6aa5ff6d0dde27be946ac27d", kill_on_drop: false }`
[INFO] [stdout] 26655fd448495bc78a51ef7edace8a40778f194a6aa5ff6d0dde27be946ac27d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-109/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-109/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b119d3d0acab3ad43032922a30d7267897a4a8bc006a8a7ae577a8796e9d3630
[INFO] running `Command { std: "docker" "start" "-a" "b119d3d0acab3ad43032922a30d7267897a4a8bc006a8a7ae577a8796e9d3630", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]    Compiling adler32 v1.2.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling byteorder v1.4.2
[INFO] [stderr]    Compiling miniz_oxide v0.3.7
[INFO] [stderr]    Compiling deflate v0.8.6
[INFO] [stderr]    Compiling png v0.16.8
[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 37.60s
[INFO] running `Command { std: "docker" "inspect" "b119d3d0acab3ad43032922a30d7267897a4a8bc006a8a7ae577a8796e9d3630", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b119d3d0acab3ad43032922a30d7267897a4a8bc006a8a7ae577a8796e9d3630", kill_on_drop: false }`
[INFO] [stdout] b119d3d0acab3ad43032922a30d7267897a4a8bc006a8a7ae577a8796e9d3630
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-109/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-109/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 42f933365bec406b491f082c0d7af61f6e761a17c019bc5c90e1c1ba131fd02e
[INFO] running `Command { std: "docker" "start" "-a" "42f933365bec406b491f082c0d7af61f6e761a17c019bc5c90e1c1ba131fd02e", 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 test [unoptimized + debuginfo] target(s) in 6.93s
[INFO] running `Command { std: "docker" "inspect" "42f933365bec406b491f082c0d7af61f6e761a17c019bc5c90e1c1ba131fd02e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "42f933365bec406b491f082c0d7af61f6e761a17c019bc5c90e1c1ba131fd02e", kill_on_drop: false }`
[INFO] [stdout] 42f933365bec406b491f082c0d7af61f6e761a17c019bc5c90e1c1ba131fd02e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-109/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-109/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e9999c97389eb5a5c92bcc388aaba61cfe989d5b7995880ec8c5157a286f60f7
[INFO] running `Command { std: "docker" "start" "-a" "e9999c97389eb5a5c92bcc388aaba61cfe989d5b7995880ec8c5157a286f60f7", 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 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/img2utf-2f58277a1bc90ecf)
[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" "e9999c97389eb5a5c92bcc388aaba61cfe989d5b7995880ec8c5157a286f60f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9999c97389eb5a5c92bcc388aaba61cfe989d5b7995880ec8c5157a286f60f7", kill_on_drop: false }`
[INFO] [stdout] e9999c97389eb5a5c92bcc388aaba61cfe989d5b7995880ec8c5157a286f60f7