[INFO] fetching crate diffimg 2.1.0...
[INFO] testing diffimg-2.1.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate diffimg 2.1.0 into /workspace/builds/worker-115/source
[INFO] validating manifest of crates.io crate diffimg 2.1.0 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 crates.io crate diffimg 2.1.0
[INFO] finished tweaking crates.io crate diffimg 2.1.0
[INFO] tweaked toml for crates.io crate diffimg 2.1.0 written to /workspace/builds/worker-115/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded lcs-diff v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/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] 347731c3c1e6f5109810c54bb9057768996957d7a55e9aea4f94a0f1efd8aa34
[INFO] running `Command { std: "docker" "start" "-a" "347731c3c1e6f5109810c54bb9057768996957d7a55e9aea4f94a0f1efd8aa34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "347731c3c1e6f5109810c54bb9057768996957d7a55e9aea4f94a0f1efd8aa34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "347731c3c1e6f5109810c54bb9057768996957d7a55e9aea4f94a0f1efd8aa34", kill_on_drop: false }`
[INFO] [stdout] 347731c3c1e6f5109810c54bb9057768996957d7a55e9aea4f94a0f1efd8aa34
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/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] 11af42a54ea7e6bdbaf5f86c65e8cb4a7a6b66f4a4902790e5e2655b3c7b1128
[INFO] running `Command { std: "docker" "start" "-a" "11af42a54ea7e6bdbaf5f86c65e8cb4a7a6b66f4a4902790e5e2655b3c7b1128", kill_on_drop: false }`
[INFO] [stderr]    Compiling lcs-diff v0.1.1
[INFO] [stderr]    Compiling diffimg v2.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.69s
[INFO] running `Command { std: "docker" "inspect" "11af42a54ea7e6bdbaf5f86c65e8cb4a7a6b66f4a4902790e5e2655b3c7b1128", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11af42a54ea7e6bdbaf5f86c65e8cb4a7a6b66f4a4902790e5e2655b3c7b1128", kill_on_drop: false }`
[INFO] [stdout] 11af42a54ea7e6bdbaf5f86c65e8cb4a7a6b66f4a4902790e5e2655b3c7b1128
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/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] fb7a702b368026220450a5172917a29c4b939c8e40687fe25702dac716caf4ce
[INFO] running `Command { std: "docker" "start" "-a" "fb7a702b368026220450a5172917a29c4b939c8e40687fe25702dac716caf4ce", kill_on_drop: false }`
[INFO] [stderr]    Compiling adler32 v1.2.0
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling color_quant v1.1.0
[INFO] [stderr]    Compiling bytemuck v1.7.2
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling deflate v0.8.6
[INFO] [stderr]    Compiling miniz_oxide v0.3.7
[INFO] [stderr]    Compiling png v0.16.8
[INFO] [stderr]    Compiling image v0.23.14
[INFO] [stderr]    Compiling diffimg v2.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 5.93s
[INFO] running `Command { std: "docker" "inspect" "fb7a702b368026220450a5172917a29c4b939c8e40687fe25702dac716caf4ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb7a702b368026220450a5172917a29c4b939c8e40687fe25702dac716caf4ce", kill_on_drop: false }`
[INFO] [stdout] fb7a702b368026220450a5172917a29c4b939c8e40687fe25702dac716caf4ce
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/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] f60cf32caf2a2721d41dd19ff6fb5f5526619c604bd61799bd2f796072e36579
[INFO] running `Command { std: "docker" "start" "-a" "f60cf32caf2a2721d41dd19ff6fb5f5526619c604bd61799bd2f796072e36579", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/diffimg-ba61bf5ec6d6228b)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::diff_images ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.35s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests diffimg
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - diff (line 28) - compile ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - diff (line 28) stdout ----
[INFO] [stdout] error[E0061]: this function takes 3 arguments but 2 arguments were supplied
[INFO] [stdout]   --> src/lib.rs:35:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | let diff = diffimg::diff(&image1.to_bytes(), &image2.to_bytes());
[INFO] [stdout]    |            ^^^^^^^^^^^^^ ------------------  ------------------ supplied 2 arguments
[INFO] [stdout]    |            |
[INFO] [stdout]    |            expected 3 arguments
[INFO] [stdout]    |
[INFO] [stdout] note: function defined here
[INFO] [stdout]   --> /opt/rustwide/workdir/src/lib.rs:37:8
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub fn diff(image_a: &[u8], image_b: &[u8], precision: f64) -> f64 {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0061`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - diff (line 28)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.09s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "f60cf32caf2a2721d41dd19ff6fb5f5526619c604bd61799bd2f796072e36579", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f60cf32caf2a2721d41dd19ff6fb5f5526619c604bd61799bd2f796072e36579", kill_on_drop: false }`
[INFO] [stdout] f60cf32caf2a2721d41dd19ff6fb5f5526619c604bd61799bd2f796072e36579