[INFO] fetching crate mittens 0.1.0...
[INFO] testing mittens-0.1.0 against master#b70888601af92f6cdc0364abab3446e418b91d36 for pr-86479
[INFO] extracting crate mittens 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate mittens 0.1.0 on toolchain b70888601af92f6cdc0364abab3446e418b91d36
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mittens 0.1.0
[INFO] finished tweaking crates.io crate mittens 0.1.0
[INFO] tweaked toml for crates.io crate mittens 0.1.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3d7d2a6f507260b00fe91df339b353178e318206d1db0d5ba365f11faf91d853
[INFO] running `Command { std: "docker" "start" "-a" "3d7d2a6f507260b00fe91df339b353178e318206d1db0d5ba365f11faf91d853", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3d7d2a6f507260b00fe91df339b353178e318206d1db0d5ba365f11faf91d853", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d7d2a6f507260b00fe91df339b353178e318206d1db0d5ba365f11faf91d853", kill_on_drop: false }`
[INFO] [stdout] 3d7d2a6f507260b00fe91df339b353178e318206d1db0d5ba365f11faf91d853
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+b70888601af92f6cdc0364abab3446e418b91d36" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4b338b6ad05ac18672a514d0ba460027f82ac92443d00c26523741e69608dd9c
[INFO] running `Command { std: "docker" "start" "-a" "4b338b6ad05ac18672a514d0ba460027f82ac92443d00c26523741e69608dd9c", kill_on_drop: false }`
[INFO] [stderr]    Compiling mittens v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.23s
[INFO] running `Command { std: "docker" "inspect" "4b338b6ad05ac18672a514d0ba460027f82ac92443d00c26523741e69608dd9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b338b6ad05ac18672a514d0ba460027f82ac92443d00c26523741e69608dd9c", kill_on_drop: false }`
[INFO] [stdout] 4b338b6ad05ac18672a514d0ba460027f82ac92443d00c26523741e69608dd9c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d30f83bdd6c6b05385adab1ebb1f1d94afff32244107878520dbd12c1a2063c3
[INFO] running `Command { std: "docker" "start" "-a" "d30f83bdd6c6b05385adab1ebb1f1d94afff32244107878520dbd12c1a2063c3", kill_on_drop: false }`
[INFO] [stderr]    Compiling mittens v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.43s
[INFO] running `Command { std: "docker" "inspect" "d30f83bdd6c6b05385adab1ebb1f1d94afff32244107878520dbd12c1a2063c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d30f83bdd6c6b05385adab1ebb1f1d94afff32244107878520dbd12c1a2063c3", kill_on_drop: false }`
[INFO] [stdout] d30f83bdd6c6b05385adab1ebb1f1d94afff32244107878520dbd12c1a2063c3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 569c69ec6de2ecbc3883fd6329f7cf09254a234c4768bbfdcda3cd9530b3ab4c
[INFO] running `Command { std: "docker" "start" "-a" "569c69ec6de2ecbc3883fd6329f7cf09254a234c4768bbfdcda3cd9530b3ab4c", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/mittens-d825fcd9acb87010)
[INFO] [stdout] running 0 tests
[INFO] [stderr]    Doc-tests mittens
[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] [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" "569c69ec6de2ecbc3883fd6329f7cf09254a234c4768bbfdcda3cd9530b3ab4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "569c69ec6de2ecbc3883fd6329f7cf09254a234c4768bbfdcda3cd9530b3ab4c", kill_on_drop: false }`
[INFO] [stdout] 569c69ec6de2ecbc3883fd6329f7cf09254a234c4768bbfdcda3cd9530b3ab4c