[INFO] cloning repository https://github.com/mingyli/riff
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mingyli/riff" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmingyli%2Friff", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmingyli%2Friff'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0288a9c92ac781c21c21ff2b965015a5c29ea433
[INFO] testing mingyli/riff against master#552a959051cebf8f88a8f558399baf733bec9ce0 for pr-136932
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmingyli%2Friff" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mingyli/riff on toolchain 552a959051cebf8f88a8f558399baf733bec9ce0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+552a959051cebf8f88a8f558399baf733bec9ce0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mingyli/riff
[INFO] finished tweaking git repo https://github.com/mingyli/riff
[INFO] tweaked toml for git repo https://github.com/mingyli/riff written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/mingyli/riff already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+552a959051cebf8f88a8f558399baf733bec9ce0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+552a959051cebf8f88a8f558399baf733bec9ce0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b9cba90b2bafc08d4134feebcea82395fdf6e776422871ca8b5be5f521d30f3b
[INFO] running `Command { std: "docker" "start" "-a" "b9cba90b2bafc08d4134feebcea82395fdf6e776422871ca8b5be5f521d30f3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b9cba90b2bafc08d4134feebcea82395fdf6e776422871ca8b5be5f521d30f3b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9cba90b2bafc08d4134feebcea82395fdf6e776422871ca8b5be5f521d30f3b", kill_on_drop: false }`
[INFO] [stdout] b9cba90b2bafc08d4134feebcea82395fdf6e776422871ca8b5be5f521d30f3b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "RUSTDOCFLAGS=--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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+552a959051cebf8f88a8f558399baf733bec9ce0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d82f6a0bd8ba7bba18d067fd7e5125966994735f147190fcafbe8de930aed5e9
[INFO] running `Command { std: "docker" "start" "-a" "d82f6a0bd8ba7bba18d067fd7e5125966994735f147190fcafbe8de930aed5e9", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling unicode-width v0.1.7
[INFO] [stderr]    Compiling vec_map v0.8.1
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling either v1.5.3
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling atty v0.2.13
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling riff v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `height` is never read
[INFO] [stdout]   --> src/diff.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 9  | struct Matrix<T> {
[INFO] [stdout]    |        ------ field in this struct
[INFO] [stdout] 10 |     data: Vec<T>,
[INFO] [stdout] 11 |     height: usize,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Matrix` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.86s
[INFO] running `Command { std: "docker" "inspect" "d82f6a0bd8ba7bba18d067fd7e5125966994735f147190fcafbe8de930aed5e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d82f6a0bd8ba7bba18d067fd7e5125966994735f147190fcafbe8de930aed5e9", kill_on_drop: false }`
[INFO] [stdout] d82f6a0bd8ba7bba18d067fd7e5125966994735f147190fcafbe8de930aed5e9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "RUSTDOCFLAGS=--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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+552a959051cebf8f88a8f558399baf733bec9ce0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7e0768aff45ca77044f457a637df714adc2c0d00e9240859de1b0d041f456be5
[INFO] running `Command { std: "docker" "start" "-a" "7e0768aff45ca77044f457a637df714adc2c0d00e9240859de1b0d041f456be5", kill_on_drop: false }`
[INFO] [stderr]    Compiling riff v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `height` is never read
[INFO] [stdout]   --> src/diff.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 9  | struct Matrix<T> {
[INFO] [stdout]    |        ------ field in this struct
[INFO] [stdout] 10 |     data: Vec<T>,
[INFO] [stdout] 11 |     height: usize,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Matrix` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.52s
[INFO] running `Command { std: "docker" "inspect" "7e0768aff45ca77044f457a637df714adc2c0d00e9240859de1b0d041f456be5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e0768aff45ca77044f457a637df714adc2c0d00e9240859de1b0d041f456be5", kill_on_drop: false }`
[INFO] [stdout] 7e0768aff45ca77044f457a637df714adc2c0d00e9240859de1b0d041f456be5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "RUSTDOCFLAGS=--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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+552a959051cebf8f88a8f558399baf733bec9ce0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3049045a07a08451bc574d005301a38f6f21da7f4f5dd5e83bf26ec3d80e21da
[INFO] running `Command { std: "docker" "start" "-a" "3049045a07a08451bc574d005301a38f6f21da7f4f5dd5e83bf26ec3d80e21da", kill_on_drop: false }`
[INFO] [stderr] warning: field `height` is never read
[INFO] [stderr]   --> src/diff.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 9  | struct Matrix<T> {
[INFO] [stderr]    |        ------ field in this struct
[INFO] [stderr] 10 |     data: Vec<T>,
[INFO] [stderr] 11 |     height: usize,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Matrix` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `riff` (bin "riff" test) generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/riff.rs (/opt/rustwide/target/debug/deps/riff-8219e922355c4aa0)
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test diff::test_diff_added ... ok
[INFO] [stdout] test diff::test_diff_empty ... ok
[INFO] [stdout] test diff::test_diff_modified ... ok
[INFO] [stdout] test diff::test_diff_mixed ... ok
[INFO] [stdout] test diff::test_diff_removed ... ok
[INFO] [stdout] test diff::test_diff_same ... ok
[INFO] [stdout] test diff::test_different ... ok
[INFO] [stdout] test diff::test_different_reversed ... ok
[INFO] [stdout] test hunk::test_get_hunks ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "3049045a07a08451bc574d005301a38f6f21da7f4f5dd5e83bf26ec3d80e21da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3049045a07a08451bc574d005301a38f6f21da7f4f5dd5e83bf26ec3d80e21da", kill_on_drop: false }`
[INFO] [stdout] 3049045a07a08451bc574d005301a38f6f21da7f4f5dd5e83bf26ec3d80e21da