[INFO] fetching crate seamstress 0.0.1...
[INFO] testing seamstress-0.0.1 against try#d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2 for pr-86479
[INFO] extracting crate seamstress 0.0.1 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate seamstress 0.0.1 on toolchain d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate seamstress 0.0.1
[INFO] finished tweaking crates.io crate seamstress 0.0.1
[INFO] tweaked toml for crates.io crate seamstress 0.0.1 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate crates.io crate seamstress 0.0.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "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-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 79d1801272a8c25a97047c2bc8b4ffd531eabf187d3ace09ed4dcec1fde16d61
[INFO] running `Command { std: "docker" "start" "-a" "79d1801272a8c25a97047c2bc8b4ffd531eabf187d3ace09ed4dcec1fde16d61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "79d1801272a8c25a97047c2bc8b4ffd531eabf187d3ace09ed4dcec1fde16d61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "79d1801272a8c25a97047c2bc8b4ffd531eabf187d3ace09ed4dcec1fde16d61", kill_on_drop: false }`
[INFO] [stdout] 79d1801272a8c25a97047c2bc8b4ffd531eabf187d3ace09ed4dcec1fde16d61
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0a8381cc96f38ac67aafea9d27697fe6d01694d7b7589d3e3ee71e33c290d2e8
[INFO] running `Command { std: "docker" "start" "-a" "0a8381cc96f38ac67aafea9d27697fe6d01694d7b7589d3e3ee71e33c290d2e8", kill_on_drop: false }`
[INFO] [stderr]    Compiling seamstress v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.33s
[INFO] running `Command { std: "docker" "inspect" "0a8381cc96f38ac67aafea9d27697fe6d01694d7b7589d3e3ee71e33c290d2e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a8381cc96f38ac67aafea9d27697fe6d01694d7b7589d3e3ee71e33c290d2e8", kill_on_drop: false }`
[INFO] [stdout] 0a8381cc96f38ac67aafea9d27697fe6d01694d7b7589d3e3ee71e33c290d2e8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e65a7af4002dfd2bcfc555ee7de4024a7d2026e1d98a7abf05602bd91e7032bc
[INFO] running `Command { std: "docker" "start" "-a" "e65a7af4002dfd2bcfc555ee7de4024a7d2026e1d98a7abf05602bd91e7032bc", kill_on_drop: false }`
[INFO] [stderr]    Compiling seamstress v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.28s
[INFO] running `Command { std: "docker" "inspect" "e65a7af4002dfd2bcfc555ee7de4024a7d2026e1d98a7abf05602bd91e7032bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e65a7af4002dfd2bcfc555ee7de4024a7d2026e1d98a7abf05602bd91e7032bc", kill_on_drop: false }`
[INFO] [stdout] e65a7af4002dfd2bcfc555ee7de4024a7d2026e1d98a7abf05602bd91e7032bc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 99ce2cd30ec9303fd4d5603c6c0343d7c2aeea29643980f0a4e0d03d77634d0d
[INFO] running `Command { std: "docker" "start" "-a" "99ce2cd30ec9303fd4d5603c6c0343d7c2aeea29643980f0a4e0d03d77634d0d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.37s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/seamstress-ef8dbb390d0e622c)
[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" "99ce2cd30ec9303fd4d5603c6c0343d7c2aeea29643980f0a4e0d03d77634d0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "99ce2cd30ec9303fd4d5603c6c0343d7c2aeea29643980f0a4e0d03d77634d0d", kill_on_drop: false }`
[INFO] [stdout] 99ce2cd30ec9303fd4d5603c6c0343d7c2aeea29643980f0a4e0d03d77634d0d