[INFO] fetching crate slave-pool 0.4.0...
[INFO] building slave-pool-0.4.0 against master#ad85bc524b1ad696e42061ad8338d382dffbdbe5 for pr-146237-1
[INFO] extracting crate slave-pool 0.4.0 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate slave-pool 0.4.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate slave-pool 0.4.0
[INFO] tweaked toml for crates.io crate slave-pool 0.4.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate slave-pool 0.4.0 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 slave-pool 0.4.0 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] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded thread-waker v1.2.0
[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] 313f03b806e8ecae6184fd6bb4767e8b40df541b975614853ed240d039fe90f5
[INFO] running `Command { std: "docker" "start" "-a" "313f03b806e8ecae6184fd6bb4767e8b40df541b975614853ed240d039fe90f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "313f03b806e8ecae6184fd6bb4767e8b40df541b975614853ed240d039fe90f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "313f03b806e8ecae6184fd6bb4767e8b40df541b975614853ed240d039fe90f5", kill_on_drop: false }`
[INFO] [stdout] 313f03b806e8ecae6184fd6bb4767e8b40df541b975614853ed240d039fe90f5
[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] 3429926f876a4d05513b3909a4098bb7a6f7673408c78482ab8e8dd086c3d8ce
[INFO] running `Command { std: "docker" "start" "-a" "3429926f876a4d05513b3909a4098bb7a6f7673408c78482ab8e8dd086c3d8ce", kill_on_drop: false }`
[INFO] [stderr]    Compiling slave-pool v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.60s
[INFO] running `Command { std: "docker" "inspect" "3429926f876a4d05513b3909a4098bb7a6f7673408c78482ab8e8dd086c3d8ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3429926f876a4d05513b3909a4098bb7a6f7673408c78482ab8e8dd086c3d8ce", kill_on_drop: false }`
[INFO] [stdout] 3429926f876a4d05513b3909a4098bb7a6f7673408c78482ab8e8dd086c3d8ce
[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] e3d1a3119dd01a39daabdda9cf7b9d96776705cb60d94a5b0cba1d4ea3b6740e
[INFO] running `Command { std: "docker" "start" "-a" "e3d1a3119dd01a39daabdda9cf7b9d96776705cb60d94a5b0cba1d4ea3b6740e", kill_on_drop: false }`
[INFO] [stderr]    Compiling thread-waker v1.2.0
[INFO] [stderr]    Compiling slave-pool v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.38s
[INFO] running `Command { std: "docker" "inspect" "e3d1a3119dd01a39daabdda9cf7b9d96776705cb60d94a5b0cba1d4ea3b6740e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3d1a3119dd01a39daabdda9cf7b9d96776705cb60d94a5b0cba1d4ea3b6740e", kill_on_drop: false }`
[INFO] [stdout] e3d1a3119dd01a39daabdda9cf7b9d96776705cb60d94a5b0cba1d4ea3b6740e