[INFO] fetching crate no-std-net 0.6.0...
[INFO] testing no-std-net-0.6.0 against try#28eff87d300677d3acc4d7129d31c74bf885cf6d for pr-94775
[INFO] extracting crate no-std-net 0.6.0 into /workspace/builds/worker-21/source
[INFO] validating manifest of crates.io crate no-std-net 0.6.0 on toolchain 28eff87d300677d3acc4d7129d31c74bf885cf6d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+28eff87d300677d3acc4d7129d31c74bf885cf6d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate no-std-net 0.6.0
[INFO] finished tweaking crates.io crate no-std-net 0.6.0
[INFO] tweaked toml for crates.io crate no-std-net 0.6.0 written to /workspace/builds/worker-21/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+28eff87d300677d3acc4d7129d31c74bf885cf6d" "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" "+28eff87d300677d3acc4d7129d31c74bf885cf6d" "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-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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@sha256:1ede1414886370302e694df474b9877c02906499f04c196936ce0973d30c5eaa" "/opt/rustwide/cargo-home/bin/cargo" "+28eff87d300677d3acc4d7129d31c74bf885cf6d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 752598fe45a24d2c3f95e8f6f55008855e80160b7719bfb159aad84a488eaac7
[INFO] running `Command { std: "docker" "start" "-a" "752598fe45a24d2c3f95e8f6f55008855e80160b7719bfb159aad84a488eaac7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "752598fe45a24d2c3f95e8f6f55008855e80160b7719bfb159aad84a488eaac7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "752598fe45a24d2c3f95e8f6f55008855e80160b7719bfb159aad84a488eaac7", kill_on_drop: false }`
[INFO] [stdout] 752598fe45a24d2c3f95e8f6f55008855e80160b7719bfb159aad84a488eaac7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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@sha256:1ede1414886370302e694df474b9877c02906499f04c196936ce0973d30c5eaa" "/opt/rustwide/cargo-home/bin/cargo" "+28eff87d300677d3acc4d7129d31c74bf885cf6d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[ERROR] error running command: no output for 300 seconds