[INFO] fetching crate purple 0.0.1-placeholder...
[INFO] testing purple-0.0.1-placeholder against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] extracting crate purple 0.0.1-placeholder into /workspace/builds/worker-31/source
[INFO] validating manifest of crates.io crate purple 0.0.1-placeholder on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate purple 0.0.1-placeholder
[INFO] finished tweaking crates.io crate purple 0.0.1-placeholder
[INFO] tweaked toml for crates.io crate purple 0.0.1-placeholder written to /workspace/builds/worker-31/source/Cargo.toml
[INFO] crate crates.io crate purple 0.0.1-placeholder already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "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-31/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1a62781aa498811ea99d9ad6edef36ecab13374e8437dbed9bda1010d9ac3c5f
[INFO] running `Command { std: "docker" "start" "-a" "1a62781aa498811ea99d9ad6edef36ecab13374e8437dbed9bda1010d9ac3c5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1a62781aa498811ea99d9ad6edef36ecab13374e8437dbed9bda1010d9ac3c5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a62781aa498811ea99d9ad6edef36ecab13374e8437dbed9bda1010d9ac3c5f", kill_on_drop: false }`
[INFO] [stdout] 1a62781aa498811ea99d9ad6edef36ecab13374e8437dbed9bda1010d9ac3c5f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7338f80aa8f34534146a74645ea3c77d27e0f54057c68d6cf905d5b002fcc885
[INFO] running `Command { std: "docker" "start" "-a" "7338f80aa8f34534146a74645ea3c77d27e0f54057c68d6cf905d5b002fcc885", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling purple v0.0.1-placeholder (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.42s
[INFO] running `Command { std: "docker" "inspect" "7338f80aa8f34534146a74645ea3c77d27e0f54057c68d6cf905d5b002fcc885", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7338f80aa8f34534146a74645ea3c77d27e0f54057c68d6cf905d5b002fcc885", kill_on_drop: false }`
[INFO] [stdout] 7338f80aa8f34534146a74645ea3c77d27e0f54057c68d6cf905d5b002fcc885
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5da8537191106c59b872b79713e3a6cb0c4e35ea244e2a9b36248ffc6c2f06dd
[INFO] running `Command { std: "docker" "start" "-a" "5da8537191106c59b872b79713e3a6cb0c4e35ea244e2a9b36248ffc6c2f06dd", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling purple v0.0.1-placeholder (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.48s
[INFO] running `Command { std: "docker" "inspect" "5da8537191106c59b872b79713e3a6cb0c4e35ea244e2a9b36248ffc6c2f06dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5da8537191106c59b872b79713e3a6cb0c4e35ea244e2a9b36248ffc6c2f06dd", kill_on_drop: false }`
[INFO] [stdout] 5da8537191106c59b872b79713e3a6cb0c4e35ea244e2a9b36248ffc6c2f06dd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7780f8009d116a76ac3a5989a6858f9dfd4b7fb69f2a6f85565e09aa6fbbe989
[INFO] running `Command { std: "docker" "start" "-a" "7780f8009d116a76ac3a5989a6858f9dfd4b7fb69f2a6f85565e09aa6fbbe989", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/purple-ab0c3fb9b04d99b6)
[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" "7780f8009d116a76ac3a5989a6858f9dfd4b7fb69f2a6f85565e09aa6fbbe989", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7780f8009d116a76ac3a5989a6858f9dfd4b7fb69f2a6f85565e09aa6fbbe989", kill_on_drop: false }`
[INFO] [stdout] 7780f8009d116a76ac3a5989a6858f9dfd4b7fb69f2a6f85565e09aa6fbbe989