[INFO] fetching crate nb-blocking-util 0.10.2...
[INFO] building nb-blocking-util-0.10.2 against master#ad85bc524b1ad696e42061ad8338d382dffbdbe5 for pr-146237-1
[INFO] extracting crate nb-blocking-util 0.10.2 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate nb-blocking-util 0.10.2
[INFO] finished tweaking crates.io crate nb-blocking-util 0.10.2
[INFO] tweaked toml for crates.io crate nb-blocking-util 0.10.2 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate nb-blocking-util 0.10.2 on toolchain ad85bc524b1ad696e42061ad8338d382dffbdbe5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate nb-blocking-util 0.10.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6a0f55e124dfc607b6989fcf6047c88a9f857d071cd6e595bce82d29c95cbc45
[INFO] running `Command { std: "docker" "start" "-a" "6a0f55e124dfc607b6989fcf6047c88a9f857d071cd6e595bce82d29c95cbc45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6a0f55e124dfc607b6989fcf6047c88a9f857d071cd6e595bce82d29c95cbc45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a0f55e124dfc607b6989fcf6047c88a9f857d071cd6e595bce82d29c95cbc45", kill_on_drop: false }`
[INFO] [stdout] 6a0f55e124dfc607b6989fcf6047c88a9f857d071cd6e595bce82d29c95cbc45
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2fd82fe2742e5f0d95e52979b36ee8a10ac6d28b32e5cfcf087e9707cea51336
[INFO] running `Command { std: "docker" "start" "-a" "2fd82fe2742e5f0d95e52979b36ee8a10ac6d28b32e5cfcf087e9707cea51336", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling nb-blocking-util v0.10.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.59s
[INFO] running `Command { std: "docker" "inspect" "2fd82fe2742e5f0d95e52979b36ee8a10ac6d28b32e5cfcf087e9707cea51336", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2fd82fe2742e5f0d95e52979b36ee8a10ac6d28b32e5cfcf087e9707cea51336", kill_on_drop: false }`
[INFO] [stdout] 2fd82fe2742e5f0d95e52979b36ee8a10ac6d28b32e5cfcf087e9707cea51336
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1109515ec4fb782ce7ad29f3efc77d7bb49125694cfbecb5e270808f6e07b3e8
[INFO] running `Command { std: "docker" "start" "-a" "1109515ec4fb782ce7ad29f3efc77d7bb49125694cfbecb5e270808f6e07b3e8", kill_on_drop: false }`
[INFO] [stderr]    Compiling nb-blocking-util v0.10.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.53s
[INFO] running `Command { std: "docker" "inspect" "1109515ec4fb782ce7ad29f3efc77d7bb49125694cfbecb5e270808f6e07b3e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1109515ec4fb782ce7ad29f3efc77d7bb49125694cfbecb5e270808f6e07b3e8", kill_on_drop: false }`
[INFO] [stdout] 1109515ec4fb782ce7ad29f3efc77d7bb49125694cfbecb5e270808f6e07b3e8