[INFO] fetching crate mek 0.0.1...
[INFO] testing mek-0.0.1 against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] extracting crate mek 0.0.1 into /workspace/builds/worker-20/source
[INFO] validating manifest of crates.io crate mek 0.0.1 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 mek 0.0.1
[INFO] finished tweaking crates.io crate mek 0.0.1
[INFO] tweaked toml for crates.io crate mek 0.0.1 written to /workspace/builds/worker-20/source/Cargo.toml
[INFO] crate crates.io crate mek 0.0.1 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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] 10db07b5b2a4ddfb5ea3953d5e33f4a5f09c05aba60e4cb0a9cd30b0311ccde4
[INFO] running `Command { std: "docker" "start" "-a" "10db07b5b2a4ddfb5ea3953d5e33f4a5f09c05aba60e4cb0a9cd30b0311ccde4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "10db07b5b2a4ddfb5ea3953d5e33f4a5f09c05aba60e4cb0a9cd30b0311ccde4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10db07b5b2a4ddfb5ea3953d5e33f4a5f09c05aba60e4cb0a9cd30b0311ccde4", kill_on_drop: false }`
[INFO] [stdout] 10db07b5b2a4ddfb5ea3953d5e33f4a5f09c05aba60e4cb0a9cd30b0311ccde4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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] 6b68159f0423aa1a272707f68246a8882300b921cb2b4ce1f9b09655c6d55ba2
[INFO] running `Command { std: "docker" "start" "-a" "6b68159f0423aa1a272707f68246a8882300b921cb2b4ce1f9b09655c6d55ba2", kill_on_drop: false }`
[INFO] [stderr]    Compiling mek v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.68s
[INFO] running `Command { std: "docker" "inspect" "6b68159f0423aa1a272707f68246a8882300b921cb2b4ce1f9b09655c6d55ba2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b68159f0423aa1a272707f68246a8882300b921cb2b4ce1f9b09655c6d55ba2", kill_on_drop: false }`
[INFO] [stdout] 6b68159f0423aa1a272707f68246a8882300b921cb2b4ce1f9b09655c6d55ba2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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] ad922d3d4b3a2ab15fe2748461689884473e5dd0cc70dd929704311007f50ea7
[INFO] running `Command { std: "docker" "start" "-a" "ad922d3d4b3a2ab15fe2748461689884473e5dd0cc70dd929704311007f50ea7", kill_on_drop: false }`
[INFO] [stderr]    Compiling mek v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.39s
[INFO] running `Command { std: "docker" "inspect" "ad922d3d4b3a2ab15fe2748461689884473e5dd0cc70dd929704311007f50ea7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad922d3d4b3a2ab15fe2748461689884473e5dd0cc70dd929704311007f50ea7", kill_on_drop: false }`
[INFO] [stdout] ad922d3d4b3a2ab15fe2748461689884473e5dd0cc70dd929704311007f50ea7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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] e1e96b0b8781e2a333d1f29d805afbec06d0458ff75b1fd8a4c2a4f9ab2552f7
[INFO] running `Command { std: "docker" "start" "-a" "e1e96b0b8781e2a333d1f29d805afbec06d0458ff75b1fd8a4c2a4f9ab2552f7", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/mek-182d00e9813b4708)
[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" "e1e96b0b8781e2a333d1f29d805afbec06d0458ff75b1fd8a4c2a4f9ab2552f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1e96b0b8781e2a333d1f29d805afbec06d0458ff75b1fd8a4c2a4f9ab2552f7", kill_on_drop: false }`
[INFO] [stdout] e1e96b0b8781e2a333d1f29d805afbec06d0458ff75b1fd8a4c2a4f9ab2552f7