[INFO] fetching crate rubber 0.0.1...
[INFO] testing rubber-0.0.1 against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] extracting crate rubber 0.0.1 into /workspace/builds/worker-52/source
[INFO] validating manifest of crates.io crate rubber 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 rubber 0.0.1
[INFO] finished tweaking crates.io crate rubber 0.0.1
[INFO] tweaked toml for crates.io crate rubber 0.0.1 written to /workspace/builds/worker-52/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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-52/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/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] 8efe07de7a9ec876e275b10c236e5b0f0dd9f9526a7fd4ef8cf458ce74153351
[INFO] running `Command { std: "docker" "start" "-a" "8efe07de7a9ec876e275b10c236e5b0f0dd9f9526a7fd4ef8cf458ce74153351", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8efe07de7a9ec876e275b10c236e5b0f0dd9f9526a7fd4ef8cf458ce74153351", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8efe07de7a9ec876e275b10c236e5b0f0dd9f9526a7fd4ef8cf458ce74153351", kill_on_drop: false }`
[INFO] [stdout] 8efe07de7a9ec876e275b10c236e5b0f0dd9f9526a7fd4ef8cf458ce74153351
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/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] 6cc7c9f4913f751ee21676a3f3268679cb2b8374a089903ebf6c6d1a040e0ac8
[INFO] running `Command { std: "docker" "start" "-a" "6cc7c9f4913f751ee21676a3f3268679cb2b8374a089903ebf6c6d1a040e0ac8", kill_on_drop: false }`
[INFO] [stderr]    Compiling rubber v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.53s
[INFO] running `Command { std: "docker" "inspect" "6cc7c9f4913f751ee21676a3f3268679cb2b8374a089903ebf6c6d1a040e0ac8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6cc7c9f4913f751ee21676a3f3268679cb2b8374a089903ebf6c6d1a040e0ac8", kill_on_drop: false }`
[INFO] [stdout] 6cc7c9f4913f751ee21676a3f3268679cb2b8374a089903ebf6c6d1a040e0ac8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/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] 68a7b567cc6c63b5749a70a398809ce5e4b61a41acd3d3357394b65f2b8a9b22
[INFO] running `Command { std: "docker" "start" "-a" "68a7b567cc6c63b5749a70a398809ce5e4b61a41acd3d3357394b65f2b8a9b22", kill_on_drop: false }`
[INFO] [stderr]    Compiling rubber v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.39s
[INFO] running `Command { std: "docker" "inspect" "68a7b567cc6c63b5749a70a398809ce5e4b61a41acd3d3357394b65f2b8a9b22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68a7b567cc6c63b5749a70a398809ce5e4b61a41acd3d3357394b65f2b8a9b22", kill_on_drop: false }`
[INFO] [stdout] 68a7b567cc6c63b5749a70a398809ce5e4b61a41acd3d3357394b65f2b8a9b22
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/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] 109f72153dbeeb5071f6285217912b4d62e3aa79cb752b44d180f80e0148fcad
[INFO] running `Command { std: "docker" "start" "-a" "109f72153dbeeb5071f6285217912b4d62e3aa79cb752b44d180f80e0148fcad", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rubber-1cf447ca55eff73f)
[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" "109f72153dbeeb5071f6285217912b4d62e3aa79cb752b44d180f80e0148fcad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "109f72153dbeeb5071f6285217912b4d62e3aa79cb752b44d180f80e0148fcad", kill_on_drop: false }`
[INFO] [stdout] 109f72153dbeeb5071f6285217912b4d62e3aa79cb752b44d180f80e0148fcad