[INFO] fetching crate unmp-link-serial 0.7.0...
[INFO] checking unmp-link-serial-0.7.0 against master#8007b506ac5da629f223b755f5a5391edd5f6d01 for pr-88041
[INFO] extracting crate unmp-link-serial 0.7.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate unmp-link-serial 0.7.0 on toolchain 8007b506ac5da629f223b755f5a5391edd5f6d01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate unmp-link-serial 0.7.0
[INFO] finished tweaking crates.io crate unmp-link-serial 0.7.0
[INFO] tweaked toml for crates.io crate unmp-link-serial 0.7.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "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" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "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-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d790f8dff14790286361402faee069a3b202344da7ed3c5fe545ff56f9e4ba45
[INFO] running `Command { std: "docker" "start" "-a" "d790f8dff14790286361402faee069a3b202344da7ed3c5fe545ff56f9e4ba45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d790f8dff14790286361402faee069a3b202344da7ed3c5fe545ff56f9e4ba45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d790f8dff14790286361402faee069a3b202344da7ed3c5fe545ff56f9e4ba45", kill_on_drop: false }`
[INFO] [stdout] d790f8dff14790286361402faee069a3b202344da7ed3c5fe545ff56f9e4ba45
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 030a9cceb4a7efbbe9f9de9dcf273ad5a16433fc72aa9f79003e6834fd9f0d6c
[INFO] running `Command { std: "docker" "start" "-a" "030a9cceb4a7efbbe9f9de9dcf273ad5a16433fc72aa9f79003e6834fd9f0d6c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.99
[INFO] [stderr]    Compiling futures-core v0.3.16
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling crc16 v0.4.0
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling heapless v0.7.4
[INFO] [stderr]    Compiling futures-task v0.3.16
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking fixed-queue v0.3.10
[INFO] [stderr]     Checking async-task v4.0.3
[INFO] [stderr]     Checking unmp-id v2.0.0
[INFO] [stderr]     Checking log v0.4.14
[INFO] [stderr]     Checking lock_api v0.4.4
[INFO] [stderr]     Checking hash32 v0.2.1
[INFO] [stderr]     Checking spin v0.9.2
[INFO] [stderr]     Checking futures-intrusive v0.4.0
[INFO] [stderr]    Compiling futures-util v0.3.16
[INFO] [stderr]     Checking eds v0.4.4
[INFO] [stderr]     Checking task-stream v0.3.3
[INFO] [stderr]     Checking unmp-link v0.7.0
[INFO] [stderr]     Checking termios v0.2.2
[INFO] [stderr]     Checking ioctl-rs v0.1.6
[INFO] [stderr]     Checking serial-core v0.4.0
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking serial-unix v0.4.0
[INFO] [stderr]     Checking serial v0.4.0
[INFO] [stderr]     Checking unmp v0.7.3
[INFO] [stderr]     Checking unmp-link-serial v0.7.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.60s
[INFO] running `Command { std: "docker" "inspect" "030a9cceb4a7efbbe9f9de9dcf273ad5a16433fc72aa9f79003e6834fd9f0d6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "030a9cceb4a7efbbe9f9de9dcf273ad5a16433fc72aa9f79003e6834fd9f0d6c", kill_on_drop: false }`
[INFO] [stdout] 030a9cceb4a7efbbe9f9de9dcf273ad5a16433fc72aa9f79003e6834fd9f0d6c