[INFO] cloning repository https://github.com/whitfin/detox
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/whitfin/detox" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwhitfin%2Fdetox", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwhitfin%2Fdetox'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0354e5b0317242386c850cadff20a5836245e4db
[INFO] testing whitfin/detox against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwhitfin%2Fdetox" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/whitfin/detox
[INFO] finished tweaking git repo https://github.com/whitfin/detox
[INFO] tweaked toml for git repo https://github.com/whitfin/detox written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/whitfin/detox on toolchain dec9417b8611e34e787a3e4c37686b5131f9e5c5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/whitfin/detox 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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded libc v0.2.98
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f349ffea6b7026ac32cae1a22037a95e3b243e924d51473b54b3554b2fcb2db2
[INFO] running `Command { std: "docker" "start" "-a" "f349ffea6b7026ac32cae1a22037a95e3b243e924d51473b54b3554b2fcb2db2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f349ffea6b7026ac32cae1a22037a95e3b243e924d51473b54b3554b2fcb2db2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f349ffea6b7026ac32cae1a22037a95e3b243e924d51473b54b3554b2fcb2db2", kill_on_drop: false }`
[INFO] [stdout] f349ffea6b7026ac32cae1a22037a95e3b243e924d51473b54b3554b2fcb2db2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7a10d147fdcfb73007733fa67d2f9f2ce45afbc457670967364e0d1e52a8d039
[INFO] running `Command { std: "docker" "start" "-a" "7a10d147fdcfb73007733fa67d2f9f2ce45afbc457670967364e0d1e52a8d039", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling walkdir v2.3.2
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling detox v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `name` is never used
[INFO] [stdout]   --> src/cleaner.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub trait Cleaner {
[INFO] [stdout]    |           ------- method in this trait
[INFO] [stdout] 22 |     /// Returns the name of the current cleaner.
[INFO] [stdout] 23 |     fn name(&self) -> &str;
[INFO] [stdout]    |        ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.92s
[INFO] running `Command { std: "docker" "inspect" "7a10d147fdcfb73007733fa67d2f9f2ce45afbc457670967364e0d1e52a8d039", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a10d147fdcfb73007733fa67d2f9f2ce45afbc457670967364e0d1e52a8d039", kill_on_drop: false }`
[INFO] [stdout] 7a10d147fdcfb73007733fa67d2f9f2ce45afbc457670967364e0d1e52a8d039
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 19476dddbff534997667caf7c7bfce0b3cceaa0fc4abaf9d13e30c61e84c6f0f
[INFO] running `Command { std: "docker" "start" "-a" "19476dddbff534997667caf7c7bfce0b3cceaa0fc4abaf9d13e30c61e84c6f0f", kill_on_drop: false }`
[INFO] [stderr]    Compiling detox v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `name` is never used
[INFO] [stdout]   --> src/cleaner.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub trait Cleaner {
[INFO] [stdout]    |           ------- method in this trait
[INFO] [stdout] 22 |     /// Returns the name of the current cleaner.
[INFO] [stdout] 23 |     fn name(&self) -> &str;
[INFO] [stdout]    |        ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.23s
[INFO] running `Command { std: "docker" "inspect" "19476dddbff534997667caf7c7bfce0b3cceaa0fc4abaf9d13e30c61e84c6f0f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19476dddbff534997667caf7c7bfce0b3cceaa0fc4abaf9d13e30c61e84c6f0f", kill_on_drop: false }`
[INFO] [stdout] 19476dddbff534997667caf7c7bfce0b3cceaa0fc4abaf9d13e30c61e84c6f0f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ab67a3898a4f8d34170eb676456f7597e3abecd10af1a37191645042d486e8ec
[INFO] running `Command { std: "docker" "start" "-a" "ab67a3898a4f8d34170eb676456f7597e3abecd10af1a37191645042d486e8ec", kill_on_drop: false }`
[INFO] [stderr] warning: method `name` is never used
[INFO] [stderr]   --> src/cleaner.rs:23:8
[INFO] [stderr]    |
[INFO] [stderr] 21 | pub trait Cleaner {
[INFO] [stderr]    |           ------- method in this trait
[INFO] [stderr] 22 |     /// Returns the name of the current cleaner.
[INFO] [stderr] 23 |     fn name(&self) -> &str;
[INFO] [stderr]    |        ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `detox` (bin "detox" test) generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/detox-c3c82062d2054abe)
[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" "ab67a3898a4f8d34170eb676456f7597e3abecd10af1a37191645042d486e8ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab67a3898a4f8d34170eb676456f7597e3abecd10af1a37191645042d486e8ec", kill_on_drop: false }`
[INFO] [stdout] ab67a3898a4f8d34170eb676456f7597e3abecd10af1a37191645042d486e8ec