[INFO] fetching crate unsafe_from 1.0.0...
[INFO] building unsafe_from-1.0.0 against try#4987e9d4227139400384ab59296ffee3b0fb1183 for pr-146237-2
[INFO] extracting crate unsafe_from 1.0.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate unsafe_from 1.0.0
[INFO] finished tweaking crates.io crate unsafe_from 1.0.0
[INFO] tweaked toml for crates.io crate unsafe_from 1.0.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate unsafe_from 1.0.0 on toolchain 4987e9d4227139400384ab59296ffee3b0fb1183
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 56ded6f14b8723cd24a0b6b3a8ee064de254032e1f4a51c31f7b29620ffdd606
[INFO] running `Command { std: "docker" "start" "-a" "56ded6f14b8723cd24a0b6b3a8ee064de254032e1f4a51c31f7b29620ffdd606", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "56ded6f14b8723cd24a0b6b3a8ee064de254032e1f4a51c31f7b29620ffdd606", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "56ded6f14b8723cd24a0b6b3a8ee064de254032e1f4a51c31f7b29620ffdd606", kill_on_drop: false }`
[INFO] [stdout] 56ded6f14b8723cd24a0b6b3a8ee064de254032e1f4a51c31f7b29620ffdd606
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e2d054fa1c5c6409897f0c10ec599c71ef2fdde44733c5e3a90040142fb9adc0
[INFO] running `Command { std: "docker" "start" "-a" "e2d054fa1c5c6409897f0c10ec599c71ef2fdde44733c5e3a90040142fb9adc0", kill_on_drop: false }`
[INFO] [stderr]    Compiling unsafe_from v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.14s
[INFO] running `Command { std: "docker" "inspect" "e2d054fa1c5c6409897f0c10ec599c71ef2fdde44733c5e3a90040142fb9adc0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e2d054fa1c5c6409897f0c10ec599c71ef2fdde44733c5e3a90040142fb9adc0", kill_on_drop: false }`
[INFO] [stdout] e2d054fa1c5c6409897f0c10ec599c71ef2fdde44733c5e3a90040142fb9adc0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 00daabc0512f9a10cc3ba2d514c3f76a1cc089ace3fca11c5240e287689daa8e
[INFO] running `Command { std: "docker" "start" "-a" "00daabc0512f9a10cc3ba2d514c3f76a1cc089ace3fca11c5240e287689daa8e", kill_on_drop: false }`
[INFO] [stderr]    Compiling unsafe_from v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.30s
[INFO] running `Command { std: "docker" "inspect" "00daabc0512f9a10cc3ba2d514c3f76a1cc089ace3fca11c5240e287689daa8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "00daabc0512f9a10cc3ba2d514c3f76a1cc089ace3fca11c5240e287689daa8e", kill_on_drop: false }`
[INFO] [stdout] 00daabc0512f9a10cc3ba2d514c3f76a1cc089ace3fca11c5240e287689daa8e