[INFO] cloning repository https://github.com/owtotwo/filecmp-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/owtotwo/filecmp-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fowtotwo%2Ffilecmp-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fowtotwo%2Ffilecmp-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 33814fda1d215168827bfd0563174a121507149b
[INFO] testing owtotwo/filecmp-rs against try#8262275854dc0e5381c9d42d56257d94932c5a87 for pr-90799
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fowtotwo%2Ffilecmp-rs" "/workspace/builds/worker-106/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-106/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/owtotwo/filecmp-rs on toolchain 8262275854dc0e5381c9d42d56257d94932c5a87
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/owtotwo/filecmp-rs
[INFO] removed 0 missing examples
[INFO] finished tweaking git repo https://github.com/owtotwo/filecmp-rs
[INFO] tweaked toml for git repo https://github.com/owtotwo/filecmp-rs written to /workspace/builds/worker-106/source/Cargo.toml
[INFO] crate git repo https://github.com/owtotwo/filecmp-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "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-106/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2077a8c0b356121bb3b8361fe7f22aed6fe7f0f2eb96066af0f238fee9160d33
[INFO] running `Command { std: "docker" "start" "-a" "2077a8c0b356121bb3b8361fe7f22aed6fe7f0f2eb96066af0f238fee9160d33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2077a8c0b356121bb3b8361fe7f22aed6fe7f0f2eb96066af0f238fee9160d33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2077a8c0b356121bb3b8361fe7f22aed6fe7f0f2eb96066af0f238fee9160d33", kill_on_drop: false }`
[INFO] [stdout] 2077a8c0b356121bb3b8361fe7f22aed6fe7f0f2eb96066af0f238fee9160d33
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2100aa6b75a738eb4b4e22b0716a335d873854b6dd4af84436c191ec84b1c4cf
[INFO] running `Command { std: "docker" "start" "-a" "2100aa6b75a738eb4b4e22b0716a335d873854b6dd4af84436c191ec84b1c4cf", kill_on_drop: false }`
[INFO] [stderr]    Compiling filecmp v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `st_ino`
[INFO] [stdout]   --> src/os.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 37 |     st_ino: u64,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `st_dev`
[INFO] [stdout]   --> src/os.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 38 |     st_dev: u64,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `st_nlink`
[INFO] [stdout]   --> src/os.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 39 |     st_nlink: u64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `st_uid`
[INFO] [stdout]   --> src/os.rs:40:5
[INFO] [stdout]    |
[INFO] [stdout] 40 |     st_uid: u32,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `st_gid`
[INFO] [stdout]   --> src/os.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 41 |     st_gid: u32,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.85s
[INFO] running `Command { std: "docker" "inspect" "2100aa6b75a738eb4b4e22b0716a335d873854b6dd4af84436c191ec84b1c4cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2100aa6b75a738eb4b4e22b0716a335d873854b6dd4af84436c191ec84b1c4cf", kill_on_drop: false }`
[INFO] [stdout] 2100aa6b75a738eb4b4e22b0716a335d873854b6dd4af84436c191ec84b1c4cf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7c0c6f5c3424b418f51556e5e3857298f79d7ddbc222ecd8700a111305645e4f
[INFO] running `Command { std: "docker" "start" "-a" "7c0c6f5c3424b418f51556e5e3857298f79d7ddbc222ecd8700a111305645e4f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stdout] warning: field is never read: `st_ino`
[INFO] [stdout]   --> src/os.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 37 |     st_ino: u64,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `st_dev`
[INFO] [stdout]   --> src/os.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 38 |     st_dev: u64,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `st_nlink`
[INFO] [stdout]   --> src/os.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 39 |     st_nlink: u64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `st_uid`
[INFO] [stdout]   --> src/os.rs:40:5
[INFO] [stdout]    |
[INFO] [stdout] 40 |     st_uid: u32,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `st_gid`
[INFO] [stdout]   --> src/os.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 41 |     st_gid: u32,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling filecmp v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `st_ino`
[INFO] [stdout]   --> src/os.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 37 |     st_ino: u64,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `st_dev`
[INFO] [stdout]   --> src/os.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 38 |     st_dev: u64,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `st_nlink`
[INFO] [stdout]   --> src/os.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 39 |     st_nlink: u64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `st_uid`
[INFO] [stdout]   --> src/os.rs:40:5
[INFO] [stdout]    |
[INFO] [stdout] 40 |     st_uid: u32,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `st_gid`
[INFO] [stdout]   --> src/os.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 41 |     st_gid: u32,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 5.27s
[INFO] running `Command { std: "docker" "inspect" "7c0c6f5c3424b418f51556e5e3857298f79d7ddbc222ecd8700a111305645e4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c0c6f5c3424b418f51556e5e3857298f79d7ddbc222ecd8700a111305645e4f", kill_on_drop: false }`
[INFO] [stdout] 7c0c6f5c3424b418f51556e5e3857298f79d7ddbc222ecd8700a111305645e4f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3efe4926d0ebd4849a043c24651ff117adbbebfe636141a36b8e14977df08700
[INFO] running `Command { std: "docker" "start" "-a" "3efe4926d0ebd4849a043c24651ff117adbbebfe636141a36b8e14977df08700", kill_on_drop: false }`
[INFO] [stderr] warning: field is never read: `st_ino`
[INFO] [stderr]   --> src/os.rs:37:5
[INFO] [stderr]    |
[INFO] [stderr] 37 |     st_ino: u64,
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `st_dev`
[INFO] [stderr]   --> src/os.rs:38:5
[INFO] [stderr]    |
[INFO] [stderr] 38 |     st_dev: u64,
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `st_nlink`
[INFO] [stderr]   --> src/os.rs:39:5
[INFO] [stderr]    |
[INFO] [stderr] 39 |     st_nlink: u64,
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `st_uid`
[INFO] [stderr]   --> src/os.rs:40:5
[INFO] [stderr]    |
[INFO] [stderr] 40 |     st_uid: u32,
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `st_gid`
[INFO] [stderr]   --> src/os.rs:41:5
[INFO] [stderr]    |
[INFO] [stderr] 41 |     st_gid: u32,
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `filecmp` (lib) generated 5 warnings
[INFO] [stderr] warning: `filecmp` (lib test) generated 5 warnings (5 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/filecmp-531ceedb06c6e7d3)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test os::tests::test_stat ... ok
[INFO] [stdout] test tests::test_stat ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests filecmp
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/os.rs - os (line 12) ... ignored
[INFO] [stdout] test src/lib.rs - cmp (line 57) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out; finished in 0.30s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "3efe4926d0ebd4849a043c24651ff117adbbebfe636141a36b8e14977df08700", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3efe4926d0ebd4849a043c24651ff117adbbebfe636141a36b8e14977df08700", kill_on_drop: false }`
[INFO] [stdout] 3efe4926d0ebd4849a043c24651ff117adbbebfe636141a36b8e14977df08700