[INFO] fetching crate negative-impl 0.1.1...
[INFO] checking negative-impl-0.1.1 against stable for pr-85048-2
[INFO] extracting crate negative-impl 0.1.1 into /workspace/builds/worker-81/source
[INFO] validating manifest of crates.io crate negative-impl 0.1.1 on toolchain stable
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+stable" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate negative-impl 0.1.1
[INFO] finished tweaking crates.io crate negative-impl 0.1.1
[INFO] tweaked toml for crates.io crate negative-impl 0.1.1 written to /workspace/builds/worker-81/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+stable" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+stable" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-81/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-81/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+stable" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8233c1d3d5bb6cab9d7991f40f4a4844b65838ecd298a76d95586111dc75b454
[INFO] running `Command { std: "docker" "start" "-a" "8233c1d3d5bb6cab9d7991f40f4a4844b65838ecd298a76d95586111dc75b454", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8233c1d3d5bb6cab9d7991f40f4a4844b65838ecd298a76d95586111dc75b454", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8233c1d3d5bb6cab9d7991f40f4a4844b65838ecd298a76d95586111dc75b454", kill_on_drop: false }`
[INFO] [stdout] 8233c1d3d5bb6cab9d7991f40f4a4844b65838ecd298a76d95586111dc75b454
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-81/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-81/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+stable" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2028ee1f420a62f5ce413e0101676bce634f5c54556f9d650681330e70595cbc
[INFO] running `Command { std: "docker" "start" "-a" "2028ee1f420a62f5ce413e0101676bce634f5c54556f9d650681330e70595cbc", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]     Checking unicode-xid v0.2.2
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking quote v1.0.15
[INFO] [stderr]     Checking negative-impl v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.68s
[INFO] running `Command { std: "docker" "inspect" "2028ee1f420a62f5ce413e0101676bce634f5c54556f9d650681330e70595cbc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2028ee1f420a62f5ce413e0101676bce634f5c54556f9d650681330e70595cbc", kill_on_drop: false }`
[INFO] [stdout] 2028ee1f420a62f5ce413e0101676bce634f5c54556f9d650681330e70595cbc