[INFO] fetching crate as3956 0.0.0...
[INFO] building as3956-0.0.0 against try#9a3ef2cd3ecaae3c6ef59768612837d797602a6d for pr-137044-3
[INFO] extracting crate as3956 0.0.0 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate as3956 0.0.0 on toolchain 9a3ef2cd3ecaae3c6ef59768612837d797602a6d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9a3ef2cd3ecaae3c6ef59768612837d797602a6d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate as3956 0.0.0
[INFO] finished tweaking crates.io crate as3956 0.0.0
[INFO] tweaked toml for crates.io crate as3956 0.0.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9a3ef2cd3ecaae3c6ef59768612837d797602a6d" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9a3ef2cd3ecaae3c6ef59768612837d797602a6d" "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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+9a3ef2cd3ecaae3c6ef59768612837d797602a6d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ae9a0c72375430db8017dcbc993a78024a89d2c228a9422f17ca4a487666db5b
[INFO] running `Command { std: "docker" "start" "-a" "ae9a0c72375430db8017dcbc993a78024a89d2c228a9422f17ca4a487666db5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ae9a0c72375430db8017dcbc993a78024a89d2c228a9422f17ca4a487666db5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae9a0c72375430db8017dcbc993a78024a89d2c228a9422f17ca4a487666db5b", kill_on_drop: false }`
[INFO] [stdout] ae9a0c72375430db8017dcbc993a78024a89d2c228a9422f17ca4a487666db5b
[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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+9a3ef2cd3ecaae3c6ef59768612837d797602a6d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 25dc1329856137db248f75e0069b447751531099397a1ac57fe37a7c5d6ea2c5
[INFO] running `Command { std: "docker" "start" "-a" "25dc1329856137db248f75e0069b447751531099397a1ac57fe37a7c5d6ea2c5", kill_on_drop: false }`
[INFO] [stderr]    Compiling as3956 v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] running `Command { std: "docker" "inspect" "25dc1329856137db248f75e0069b447751531099397a1ac57fe37a7c5d6ea2c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "25dc1329856137db248f75e0069b447751531099397a1ac57fe37a7c5d6ea2c5", kill_on_drop: false }`
[INFO] [stdout] 25dc1329856137db248f75e0069b447751531099397a1ac57fe37a7c5d6ea2c5
[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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+9a3ef2cd3ecaae3c6ef59768612837d797602a6d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a5d7c24aefe2d06076aaf5a3875e16625be1467ee3529b5c81b8d84cd68b37bc
[INFO] running `Command { std: "docker" "start" "-a" "a5d7c24aefe2d06076aaf5a3875e16625be1467ee3529b5c81b8d84cd68b37bc", kill_on_drop: false }`
[INFO] [stderr]    Compiling as3956 v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.28s
[INFO] running `Command { std: "docker" "inspect" "a5d7c24aefe2d06076aaf5a3875e16625be1467ee3529b5c81b8d84cd68b37bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5d7c24aefe2d06076aaf5a3875e16625be1467ee3529b5c81b8d84cd68b37bc", kill_on_drop: false }`
[INFO] [stdout] a5d7c24aefe2d06076aaf5a3875e16625be1467ee3529b5c81b8d84cd68b37bc