[INFO] fetching crate signal-hook-mio 0.2.4...
[INFO] checking signal-hook-mio-0.2.4 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate signal-hook-mio 0.2.4 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate signal-hook-mio 0.2.4
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate signal-hook-mio 0.2.4
[INFO] tweaked toml for crates.io crate signal-hook-mio 0.2.4 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate signal-hook-mio 0.2.4 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 62 packages to latest compatible versions
[INFO] [stderr]       Adding mio v0.6.23 (available: v1.0.4)
[INFO] [stderr]       Adding mio v0.7.14 (available: v1.0.4)
[INFO] [stderr]       Adding mio v0.8.11 (available: v1.0.4)
[INFO] [stderr]       Adding serial_test v0.5.1 (available: v3.2.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 04b53f297912dc2bff71f136b358b2d2f3f7ba36891df2c2949d129e80d73b3a
[INFO] running `Command { std: "docker" "start" "-a" "04b53f297912dc2bff71f136b358b2d2f3f7ba36891df2c2949d129e80d73b3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "04b53f297912dc2bff71f136b358b2d2f3f7ba36891df2c2949d129e80d73b3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04b53f297912dc2bff71f136b358b2d2f3f7ba36891df2c2949d129e80d73b3a", kill_on_drop: false }`
[INFO] [stdout] 04b53f297912dc2bff71f136b358b2d2f3f7ba36891df2c2949d129e80d73b3a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "RUSTDOCFLAGS=--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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2ce072a474b378fe7f3a64c3b13574b70cecad57718db1da5f5ef3c7aa3331b5
[INFO] running `Command { std: "docker" "start" "-a" "2ce072a474b378fe7f3a64c3b13574b70cecad57718db1da5f5ef3c7aa3331b5", kill_on_drop: false }`
[INFO] [stderr]    Compiling parking_lot_core v0.8.6
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking cfg-if v1.0.1
[INFO] [stderr]    Compiling lock_api v0.4.13
[INFO] [stderr]     Checking smallvec v1.15.1
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]    Compiling signal-hook v0.3.18
[INFO] [stderr]     Checking log v0.4.27
[INFO] [stderr]     Checking signal-hook-registry v1.4.5
[INFO] [stderr]     Checking instant v0.1.13
[INFO] [stderr]     Checking mio v0.7.14
[INFO] [stderr]     Checking signal-hook-mio v0.2.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]    Compiling serial_test_derive v0.5.1
[INFO] [stderr]     Checking serial_test v0.5.1
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.74s
[INFO] running `Command { std: "docker" "inspect" "2ce072a474b378fe7f3a64c3b13574b70cecad57718db1da5f5ef3c7aa3331b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ce072a474b378fe7f3a64c3b13574b70cecad57718db1da5f5ef3c7aa3331b5", kill_on_drop: false }`
[INFO] [stdout] 2ce072a474b378fe7f3a64c3b13574b70cecad57718db1da5f5ef3c7aa3331b5