[INFO] cloning repository https://github.com/massih/rust_book
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/massih/rust_book" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmassih%2Frust_book", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmassih%2Frust_book'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d158ebbce8c69207e137df888b413f4e8c385595
[INFO] testing massih/rust_book against master#432e145bd5a974c5b6f4dd9b352891bd7502b69d for pr-87041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmassih%2Frust_book" "/workspace/builds/worker-15/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-15/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/massih/rust_book on toolchain 432e145bd5a974c5b6f4dd9b352891bd7502b69d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/massih/rust_book
[INFO] finished tweaking git repo https://github.com/massih/rust_book
[INFO] tweaked toml for git repo https://github.com/massih/rust_book written to /workspace/builds/worker-15/source/Cargo.toml
[INFO] crate git repo https://github.com/massih/rust_book already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "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-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 675da11c4e4f62ed7716a3c3d5c86d70460ec872d1ea9e22e084acc6236f0cd3
[INFO] running `Command { std: "docker" "start" "-a" "675da11c4e4f62ed7716a3c3d5c86d70460ec872d1ea9e22e084acc6236f0cd3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "675da11c4e4f62ed7716a3c3d5c86d70460ec872d1ea9e22e084acc6236f0cd3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "675da11c4e4f62ed7716a3c3d5c86d70460ec872d1ea9e22e084acc6236f0cd3", kill_on_drop: false }`
[INFO] [stdout] 675da11c4e4f62ed7716a3c3d5c86d70460ec872d1ea9e22e084acc6236f0cd3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 12831099d2ce45364e1c018fa1fa88972a21ea4662c4c5fca8683b208eb4af67
[INFO] running `Command { std: "docker" "start" "-a" "12831099d2ce45364e1c018fa1fa88972a21ea4662c4c5fca8683b208eb4af67", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.46
[INFO] [stderr]    Compiling rand v0.4.5
[INFO] [stderr]    Compiling rand v0.3.22
[INFO] [stderr]    Compiling rust1 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.62s
[INFO] running `Command { std: "docker" "inspect" "12831099d2ce45364e1c018fa1fa88972a21ea4662c4c5fca8683b208eb4af67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "12831099d2ce45364e1c018fa1fa88972a21ea4662c4c5fca8683b208eb4af67", kill_on_drop: false }`
[INFO] [stdout] 12831099d2ce45364e1c018fa1fa88972a21ea4662c4c5fca8683b208eb4af67
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4b3e0a8ce7ce9a28fac10efedc8316c20260c7f98f4d9d24a34aa3cca231efee
[INFO] running `Command { std: "docker" "start" "-a" "4b3e0a8ce7ce9a28fac10efedc8316c20260c7f98f4d9d24a34aa3cca231efee", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust1 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.53s
[INFO] running `Command { std: "docker" "inspect" "4b3e0a8ce7ce9a28fac10efedc8316c20260c7f98f4d9d24a34aa3cca231efee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b3e0a8ce7ce9a28fac10efedc8316c20260c7f98f4d9d24a34aa3cca231efee", kill_on_drop: false }`
[INFO] [stdout] 4b3e0a8ce7ce9a28fac10efedc8316c20260c7f98f4d9d24a34aa3cca231efee
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8a67113677ce6e149a62079514df2502b5b225aa3a588c154c714e6e3a2329b4
[INFO] running `Command { std: "docker" "start" "-a" "8a67113677ce6e149a62079514df2502b5b225aa3a588c154c714e6e3a2329b4", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust1-dbe85a1cb9c4d119)
[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" "8a67113677ce6e149a62079514df2502b5b225aa3a588c154c714e6e3a2329b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a67113677ce6e149a62079514df2502b5b225aa3a588c154c714e6e3a2329b4", kill_on_drop: false }`
[INFO] [stdout] 8a67113677ce6e149a62079514df2502b5b225aa3a588c154c714e6e3a2329b4