[INFO] fetching crate xring 0.1.0...
[INFO] building xring-0.1.0 against master#f77247ac59b29ce927f4d2cd1c26a4b2d1d358c9 for pr-137044-2
[INFO] extracting crate xring 0.1.0 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate xring 0.1.0 on toolchain f77247ac59b29ce927f4d2cd1c26a4b2d1d358c9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f77247ac59b29ce927f4d2cd1c26a4b2d1d358c9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate xring 0.1.0
[INFO] finished tweaking crates.io crate xring 0.1.0
[INFO] tweaked toml for crates.io crate xring 0.1.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f77247ac59b29ce927f4d2cd1c26a4b2d1d358c9" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f77247ac59b29ce927f4d2cd1c26a4b2d1d358c9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+f77247ac59b29ce927f4d2cd1c26a4b2d1d358c9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6b7acd3b2de750ada9cf74c15a6955a224c9f00332ce7d9f1e5b7d1b1835ac9f
[INFO] running `Command { std: "docker" "start" "-a" "6b7acd3b2de750ada9cf74c15a6955a224c9f00332ce7d9f1e5b7d1b1835ac9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6b7acd3b2de750ada9cf74c15a6955a224c9f00332ce7d9f1e5b7d1b1835ac9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b7acd3b2de750ada9cf74c15a6955a224c9f00332ce7d9f1e5b7d1b1835ac9f", kill_on_drop: false }`
[INFO] [stdout] 6b7acd3b2de750ada9cf74c15a6955a224c9f00332ce7d9f1e5b7d1b1835ac9f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+f77247ac59b29ce927f4d2cd1c26a4b2d1d358c9" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3917b7c8f6509c10dc4da9ec453f743a15f4b40c653eda403ba73bb91c40c9e4
[INFO] running `Command { std: "docker" "start" "-a" "3917b7c8f6509c10dc4da9ec453f743a15f4b40c653eda403ba73bb91c40c9e4", kill_on_drop: false }`
[INFO] [stderr]    Compiling xring v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] running `Command { std: "docker" "inspect" "3917b7c8f6509c10dc4da9ec453f743a15f4b40c653eda403ba73bb91c40c9e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3917b7c8f6509c10dc4da9ec453f743a15f4b40c653eda403ba73bb91c40c9e4", kill_on_drop: false }`
[INFO] [stdout] 3917b7c8f6509c10dc4da9ec453f743a15f4b40c653eda403ba73bb91c40c9e4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+f77247ac59b29ce927f4d2cd1c26a4b2d1d358c9" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9b77e1afd92252f57509dcf95f1918a378fd0033e3c455f45f2b9072fd9c6264
[INFO] running `Command { std: "docker" "start" "-a" "9b77e1afd92252f57509dcf95f1918a378fd0033e3c455f45f2b9072fd9c6264", kill_on_drop: false }`
[INFO] [stderr]    Compiling xring v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.27s
[INFO] running `Command { std: "docker" "inspect" "9b77e1afd92252f57509dcf95f1918a378fd0033e3c455f45f2b9072fd9c6264", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b77e1afd92252f57509dcf95f1918a378fd0033e3c455f45f2b9072fd9c6264", kill_on_drop: false }`
[INFO] [stdout] 9b77e1afd92252f57509dcf95f1918a378fd0033e3c455f45f2b9072fd9c6264