[INFO] fetching crate concoct 0.19.0-alpha.2...
[INFO] checking concoct-0.19.0-alpha.2 against master#f9515fdd5aa132e27d9b580a35b27f4b453251c1 for pr-125923
[INFO] extracting crate concoct 0.19.0-alpha.2 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate concoct 0.19.0-alpha.2 on toolchain f9515fdd5aa132e27d9b580a35b27f4b453251c1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f9515fdd5aa132e27d9b580a35b27f4b453251c1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate concoct 0.19.0-alpha.2
[INFO] finished tweaking crates.io crate concoct 0.19.0-alpha.2
[INFO] tweaked toml for crates.io crate concoct 0.19.0-alpha.2 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f9515fdd5aa132e27d9b580a35b27f4b453251c1" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 26 packages to latest compatible versions
[INFO] [stderr]       Adding rustc-hash v1.1.0 (latest: v2.0.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f9515fdd5aa132e27d9b580a35b27f4b453251c1" "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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+f9515fdd5aa132e27d9b580a35b27f4b453251c1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5cce413fd65f2a910167047139cb65b79593dabe1000150cb5ac04239a1e60bc
[INFO] running `Command { std: "docker" "start" "-a" "5cce413fd65f2a910167047139cb65b79593dabe1000150cb5ac04239a1e60bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5cce413fd65f2a910167047139cb65b79593dabe1000150cb5ac04239a1e60bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5cce413fd65f2a910167047139cb65b79593dabe1000150cb5ac04239a1e60bc", kill_on_drop: false }`
[INFO] [stdout] 5cce413fd65f2a910167047139cb65b79593dabe1000150cb5ac04239a1e60bc
[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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+f9515fdd5aa132e27d9b580a35b27f4b453251c1" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5524c6438cf1952bf170ba408333d016d5d9314b36e17f066e71dbd0f75d0968
[INFO] running `Command { std: "docker" "start" "-a" "5524c6438cf1952bf170ba408333d016d5d9314b36e17f066e71dbd0f75d0968", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.66
[INFO] [stderr]     Checking rustc-hash v1.1.0
[INFO] [stderr]    Compiling slotmap v1.0.7
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking futures-executor v0.3.30
[INFO] [stderr]     Checking futures v0.3.30
[INFO] [stderr]     Checking concoct v0.19.0-alpha.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.36s
[INFO] running `Command { std: "docker" "inspect" "5524c6438cf1952bf170ba408333d016d5d9314b36e17f066e71dbd0f75d0968", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5524c6438cf1952bf170ba408333d016d5d9314b36e17f066e71dbd0f75d0968", kill_on_drop: false }`
[INFO] [stdout] 5524c6438cf1952bf170ba408333d016d5d9314b36e17f066e71dbd0f75d0968