[INFO] fetching crate imager-engine 0.0.0...
[INFO] testing imager-engine-0.0.0 against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] extracting crate imager-engine 0.0.0 into /workspace/builds/worker-71/source
[INFO] validating manifest of crates.io crate imager-engine 0.0.0 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 crates.io crate imager-engine 0.0.0
[INFO] finished tweaking crates.io crate imager-engine 0.0.0
[INFO] tweaked toml for crates.io crate imager-engine 0.0.0 written to /workspace/builds/worker-71/source/Cargo.toml
[INFO] crate crates.io crate imager-engine 0.0.0 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/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" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0b401510f1f3f5821ac17e77d1a34335283cc7f30aa46cedbef47ed454d1b0f1
[INFO] running `Command { std: "docker" "start" "-a" "0b401510f1f3f5821ac17e77d1a34335283cc7f30aa46cedbef47ed454d1b0f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0b401510f1f3f5821ac17e77d1a34335283cc7f30aa46cedbef47ed454d1b0f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b401510f1f3f5821ac17e77d1a34335283cc7f30aa46cedbef47ed454d1b0f1", kill_on_drop: false }`
[INFO] [stdout] 0b401510f1f3f5821ac17e77d1a34335283cc7f30aa46cedbef47ed454d1b0f1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/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" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ddf70fe3844cf87872dcce522a6addc8220b396e1c8c0fcde3f7488ebb0b59ef
[INFO] running `Command { std: "docker" "start" "-a" "ddf70fe3844cf87872dcce522a6addc8220b396e1c8c0fcde3f7488ebb0b59ef", kill_on_drop: false }`
[INFO] [stderr]    Compiling imager-engine v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.82s
[INFO] running `Command { std: "docker" "inspect" "ddf70fe3844cf87872dcce522a6addc8220b396e1c8c0fcde3f7488ebb0b59ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ddf70fe3844cf87872dcce522a6addc8220b396e1c8c0fcde3f7488ebb0b59ef", kill_on_drop: false }`
[INFO] [stdout] ddf70fe3844cf87872dcce522a6addc8220b396e1c8c0fcde3f7488ebb0b59ef
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/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" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ca694ed1674decc08f6b9fc8de90212c4bbeaecb055d298773effe986842de4b
[INFO] running `Command { std: "docker" "start" "-a" "ca694ed1674decc08f6b9fc8de90212c4bbeaecb055d298773effe986842de4b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling imager-engine v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 4.38s
[INFO] running `Command { std: "docker" "inspect" "ca694ed1674decc08f6b9fc8de90212c4bbeaecb055d298773effe986842de4b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca694ed1674decc08f6b9fc8de90212c4bbeaecb055d298773effe986842de4b", kill_on_drop: false }`
[INFO] [stdout] ca694ed1674decc08f6b9fc8de90212c4bbeaecb055d298773effe986842de4b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/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" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9391938686b1cc7672dae337dbf38773919d095f0dc138ba29e4a16314db198f
[INFO] running `Command { std: "docker" "start" "-a" "9391938686b1cc7672dae337dbf38773919d095f0dc138ba29e4a16314db198f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.43s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/imager_engine-08954afc0dfb669e)
[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" "9391938686b1cc7672dae337dbf38773919d095f0dc138ba29e4a16314db198f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9391938686b1cc7672dae337dbf38773919d095f0dc138ba29e4a16314db198f", kill_on_drop: false }`
[INFO] [stdout] 9391938686b1cc7672dae337dbf38773919d095f0dc138ba29e4a16314db198f