[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 master#d98a5da813da67eb189387b8ccfb73cf481275d8+rustflags=-Copt-level=3 for pr-138759-retry
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fowtotwo%2Ffilecmp-rs" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[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-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/owtotwo/filecmp-rs on toolchain d98a5da813da67eb189387b8ccfb73cf481275d8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/owtotwo/filecmp-rs 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" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded unicode-width v0.1.8
[INFO] [stderr]   Downloaded clap v2.33.3
[INFO] [stderr]   Downloaded libc v0.2.80
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f8831bbc342505523a041a81fa85abc64d83683ea9bd5ac44a8305388326ed1b
[INFO] running `Command { std: "docker" "start" "-a" "f8831bbc342505523a041a81fa85abc64d83683ea9bd5ac44a8305388326ed1b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f8831bbc342505523a041a81fa85abc64d83683ea9bd5ac44a8305388326ed1b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f8831bbc342505523a041a81fa85abc64d83683ea9bd5ac44a8305388326ed1b", kill_on_drop: false }`
[INFO] [stdout] f8831bbc342505523a041a81fa85abc64d83683ea9bd5ac44a8305388326ed1b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1e1428e6cac34c5c7a76509e463cf12610d122fc6a7ff459f862c6faefa9d9b1
[INFO] running `Command { std: "docker" "start" "-a" "1e1428e6cac34c5c7a76509e463cf12610d122fc6a7ff459f862c6faefa9d9b1", kill_on_drop: false }`
[INFO] [stderr]    Compiling filecmp v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: multiple fields are never read
[INFO] [stdout]   --> src/os.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub struct StatResult {
[INFO] [stdout]    |            ---------- fields in this struct
[INFO] [stdout] 36 |     pub st_mode: u32,
[INFO] [stdout] 37 |     st_ino: u64,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 38 |     st_dev: u64,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 39 |     st_nlink: u64,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 40 |     st_uid: u32,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 41 |     st_gid: u32,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 42 |     pub st_size: u64,
[INFO] [stdout] 43 |     pub st_atime: f64,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 44 |     pub st_mtime: f64,
[INFO] [stdout] 45 |     pub st_ctime: f64,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `StatResult` 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 0.41s
[INFO] running `Command { std: "docker" "inspect" "1e1428e6cac34c5c7a76509e463cf12610d122fc6a7ff459f862c6faefa9d9b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e1428e6cac34c5c7a76509e463cf12610d122fc6a7ff459f862c6faefa9d9b1", kill_on_drop: false }`
[INFO] [stdout] 1e1428e6cac34c5c7a76509e463cf12610d122fc6a7ff459f862c6faefa9d9b1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dc53c930e0519b1fcbcad1cf4b90f46e2c6233ccbfc93a343e8b184c1c650f9d
[INFO] running `Command { std: "docker" "start" "-a" "dc53c930e0519b1fcbcad1cf4b90f46e2c6233ccbfc93a343e8b184c1c650f9d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stdout] warning: multiple fields are never read
[INFO] [stdout]   --> src/os.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub struct StatResult {
[INFO] [stdout]    |            ---------- fields in this struct
[INFO] [stdout] 36 |     pub st_mode: u32,
[INFO] [stdout] 37 |     st_ino: u64,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 38 |     st_dev: u64,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 39 |     st_nlink: u64,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 40 |     st_uid: u32,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 41 |     st_gid: u32,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 42 |     pub st_size: u64,
[INFO] [stdout] 43 |     pub st_atime: f64,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 44 |     pub st_mtime: f64,
[INFO] [stdout] 45 |     pub st_ctime: f64,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `StatResult` 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]    Compiling textwrap v0.11.0
[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: multiple fields are never read
[INFO] [stdout]   --> src/os.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub struct StatResult {
[INFO] [stdout]    |            ---------- fields in this struct
[INFO] [stdout] 36 |     pub st_mode: u32,
[INFO] [stdout] 37 |     st_ino: u64,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 38 |     st_dev: u64,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 39 |     st_nlink: u64,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 40 |     st_uid: u32,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 41 |     st_gid: u32,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 42 |     pub st_size: u64,
[INFO] [stdout] 43 |     pub st_atime: f64,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 44 |     pub st_mtime: f64,
[INFO] [stdout] 45 |     pub st_ctime: f64,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `StatResult` 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 19.78s
[INFO] running `Command { std: "docker" "inspect" "dc53c930e0519b1fcbcad1cf4b90f46e2c6233ccbfc93a343e8b184c1c650f9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc53c930e0519b1fcbcad1cf4b90f46e2c6233ccbfc93a343e8b184c1c650f9d", kill_on_drop: false }`
[INFO] [stdout] dc53c930e0519b1fcbcad1cf4b90f46e2c6233ccbfc93a343e8b184c1c650f9d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 09ea6dc5068f484403a2f47be9ac8c0367c35eac85fa5c46b724fde8aba1931f
[INFO] running `Command { std: "docker" "start" "-a" "09ea6dc5068f484403a2f47be9ac8c0367c35eac85fa5c46b724fde8aba1931f", kill_on_drop: false }`
[INFO] [stderr] warning: multiple fields are never read
[INFO] [stderr]   --> src/os.rs:37:5
[INFO] [stderr]    |
[INFO] [stderr] 35 | pub struct StatResult {
[INFO] [stderr]    |            ---------- fields in this struct
[INFO] [stderr] 36 |     pub st_mode: u32,
[INFO] [stderr] 37 |     st_ino: u64,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 38 |     st_dev: u64,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 39 |     st_nlink: u64,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 40 |     st_uid: u32,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 41 |     st_gid: u32,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 42 |     pub st_size: u64,
[INFO] [stderr] 43 |     pub st_atime: f64,
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr] 44 |     pub st_mtime: f64,
[INFO] [stderr] 45 |     pub st_ctime: f64,
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `StatResult` 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: `filecmp` (lib) generated 1 warning
[INFO] [stderr] warning: `filecmp` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/filecmp-c2f4609014204c71)
[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 0.01s
[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 0.34s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "09ea6dc5068f484403a2f47be9ac8c0367c35eac85fa5c46b724fde8aba1931f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "09ea6dc5068f484403a2f47be9ac8c0367c35eac85fa5c46b724fde8aba1931f", kill_on_drop: false }`
[INFO] [stdout] 09ea6dc5068f484403a2f47be9ac8c0367c35eac85fa5c46b724fde8aba1931f