[INFO] fetching crate neuron 0.0.1...
[INFO] testing neuron-0.0.1 against try#d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2 for pr-86479
[INFO] extracting crate neuron 0.0.1 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate neuron 0.0.1 on toolchain d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate neuron 0.0.1
[INFO] finished tweaking crates.io crate neuron 0.0.1
[INFO] tweaked toml for crates.io crate neuron 0.0.1 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2957b2c5dd6f0da4bee893ddf5f20d07d9c3b9f946cd7d15d272065c259aba6c
[INFO] running `Command { std: "docker" "start" "-a" "2957b2c5dd6f0da4bee893ddf5f20d07d9c3b9f946cd7d15d272065c259aba6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2957b2c5dd6f0da4bee893ddf5f20d07d9c3b9f946cd7d15d272065c259aba6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2957b2c5dd6f0da4bee893ddf5f20d07d9c3b9f946cd7d15d272065c259aba6c", kill_on_drop: false }`
[INFO] [stdout] 2957b2c5dd6f0da4bee893ddf5f20d07d9c3b9f946cd7d15d272065c259aba6c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e335e9902b23d8db3d2ef18270ecb592d2a70a129d57c845500e739af095b7c9
[INFO] running `Command { std: "docker" "start" "-a" "e335e9902b23d8db3d2ef18270ecb592d2a70a129d57c845500e739af095b7c9", kill_on_drop: false }`
[INFO] [stderr]    Compiling neuron v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.07s
[INFO] running `Command { std: "docker" "inspect" "e335e9902b23d8db3d2ef18270ecb592d2a70a129d57c845500e739af095b7c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e335e9902b23d8db3d2ef18270ecb592d2a70a129d57c845500e739af095b7c9", kill_on_drop: false }`
[INFO] [stdout] e335e9902b23d8db3d2ef18270ecb592d2a70a129d57c845500e739af095b7c9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ed59645232839122e53454fa7bdcf5eb1d31586d1c474f7fb5e2760d2bbeebbf
[INFO] running `Command { std: "docker" "start" "-a" "ed59645232839122e53454fa7bdcf5eb1d31586d1c474f7fb5e2760d2bbeebbf", kill_on_drop: false }`
[INFO] [stderr]    Compiling neuron v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.20s
[INFO] running `Command { std: "docker" "inspect" "ed59645232839122e53454fa7bdcf5eb1d31586d1c474f7fb5e2760d2bbeebbf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed59645232839122e53454fa7bdcf5eb1d31586d1c474f7fb5e2760d2bbeebbf", kill_on_drop: false }`
[INFO] [stdout] ed59645232839122e53454fa7bdcf5eb1d31586d1c474f7fb5e2760d2bbeebbf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b2add9fca23a65db1cdf3ea92be4445d7d5f7841047d68894d28cfcabc8cf372
[INFO] running `Command { std: "docker" "start" "-a" "b2add9fca23a65db1cdf3ea92be4445d7d5f7841047d68894d28cfcabc8cf372", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/neuron-1f55c6ca7355d7e9)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests neuron
[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] [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" "b2add9fca23a65db1cdf3ea92be4445d7d5f7841047d68894d28cfcabc8cf372", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2add9fca23a65db1cdf3ea92be4445d7d5f7841047d68894d28cfcabc8cf372", kill_on_drop: false }`
[INFO] [stdout] b2add9fca23a65db1cdf3ea92be4445d7d5f7841047d68894d28cfcabc8cf372