[INFO] cloning repository https://github.com/AlongWY/safe-rm
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AlongWY/safe-rm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlongWY%2Fsafe-rm", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlongWY%2Fsafe-rm'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f5bf532b4515129794a4fd882c89ba2041ce1445
[INFO] testing AlongWY/safe-rm against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlongWY%2Fsafe-rm" "/workspace/builds/worker-87/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-87/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/AlongWY/safe-rm on toolchain 62efba8a050c64249dab942951bb28f710208bc8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/AlongWY/safe-rm
[INFO] finished tweaking git repo https://github.com/AlongWY/safe-rm
[INFO] tweaked toml for git repo https://github.com/AlongWY/safe-rm written to /workspace/builds/worker-87/source/Cargo.toml
[INFO] crate git repo https://github.com/AlongWY/safe-rm already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "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-87/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/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" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] df9ddb4ba0b9300aa12f6d609b71d535369f9a4a4bd79a60d675bb57eab4e378
[INFO] running `Command { std: "docker" "start" "-a" "df9ddb4ba0b9300aa12f6d609b71d535369f9a4a4bd79a60d675bb57eab4e378", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "df9ddb4ba0b9300aa12f6d609b71d535369f9a4a4bd79a60d675bb57eab4e378", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df9ddb4ba0b9300aa12f6d609b71d535369f9a4a4bd79a60d675bb57eab4e378", kill_on_drop: false }`
[INFO] [stdout] df9ddb4ba0b9300aa12f6d609b71d535369f9a4a4bd79a60d675bb57eab4e378
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/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" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1d0486fee8e86afd7f76b1c5211d4901552ad185c8146e700e69e09503b56449
[INFO] running `Command { std: "docker" "start" "-a" "1d0486fee8e86afd7f76b1c5211d4901552ad185c8146e700e69e09503b56449", 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 ansi_term v0.11.0
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling version_check v0.9.1
[INFO] [stderr]    Compiling same-file v1.0.5
[INFO] [stderr]    Compiling walkdir v2.2.9
[INFO] [stderr]    Compiling error-chain v0.12.1
[INFO] [stderr]    Compiling term_size v0.3.1
[INFO] [stderr]    Compiling atty v0.2.13
[INFO] [stderr]    Compiling time v0.1.42
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling safe-rm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `std::result::Result::<T, E>::is_ok` that must be used
[INFO] [stdout]    --> src/main.rs:234:21
[INFO] [stdout]     |
[INFO] [stdout] 234 |                     fs::remove_dir_all(dest).is_ok();
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: if you intended to assert that this is ok, consider `.unwrap()` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 01s
[INFO] running `Command { std: "docker" "inspect" "1d0486fee8e86afd7f76b1c5211d4901552ad185c8146e700e69e09503b56449", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d0486fee8e86afd7f76b1c5211d4901552ad185c8146e700e69e09503b56449", kill_on_drop: false }`
[INFO] [stdout] 1d0486fee8e86afd7f76b1c5211d4901552ad185c8146e700e69e09503b56449
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/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" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6d54e4226a0d92ba14c16d12a4082ba4803a1f707e0a869eb99d90880f9f7aae
[INFO] running `Command { std: "docker" "start" "-a" "6d54e4226a0d92ba14c16d12a4082ba4803a1f707e0a869eb99d90880f9f7aae", kill_on_drop: false }`
[INFO] [stderr]    Compiling safe-rm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `std::result::Result::<T, E>::is_ok` that must be used
[INFO] [stdout]    --> src/main.rs:234:21
[INFO] [stdout]     |
[INFO] [stdout] 234 |                     fs::remove_dir_all(dest).is_ok();
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: if you intended to assert that this is ok, consider `.unwrap()` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.44s
[INFO] running `Command { std: "docker" "inspect" "6d54e4226a0d92ba14c16d12a4082ba4803a1f707e0a869eb99d90880f9f7aae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d54e4226a0d92ba14c16d12a4082ba4803a1f707e0a869eb99d90880f9f7aae", kill_on_drop: false }`
[INFO] [stdout] 6d54e4226a0d92ba14c16d12a4082ba4803a1f707e0a869eb99d90880f9f7aae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/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" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9f9e3369c8e11c2bf3d43d0c38faa8a5a849368188fdf2d7fca557a76a9f9cdb
[INFO] running `Command { std: "docker" "start" "-a" "9f9e3369c8e11c2bf3d43d0c38faa8a5a849368188fdf2d7fca557a76a9f9cdb", 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] [stderr] warning: unused return value of `std::result::Result::<T, E>::is_ok` that must be used
[INFO] [stderr]    --> src/main.rs:234:21
[INFO] [stderr]     |
[INFO] [stderr] 234 |                     fs::remove_dir_all(dest).is_ok();
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: if you intended to assert that this is ok, consider `.unwrap()` instead
[INFO] [stderr] 
[INFO] [stderr] warning: `safe-rm` (bin "safe-rm" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.41s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/safe_rm-7f91a48a75b0c8ef)
[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" "9f9e3369c8e11c2bf3d43d0c38faa8a5a849368188fdf2d7fca557a76a9f9cdb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f9e3369c8e11c2bf3d43d0c38faa8a5a849368188fdf2d7fca557a76a9f9cdb", kill_on_drop: false }`
[INFO] [stdout] 9f9e3369c8e11c2bf3d43d0c38faa8a5a849368188fdf2d7fca557a76a9f9cdb