[INFO] fetching crate read_exact 0.0.1...
[INFO] building read_exact-0.0.1 against master#d5c88c22807925c189328ef9d923c5d2b11a95b8 for pr-87066-3
[INFO] extracting crate read_exact 0.0.1 into /workspace/builds/worker-87/source
[INFO] validating manifest of crates.io crate read_exact 0.0.1 on toolchain d5c88c22807925c189328ef9d923c5d2b11a95b8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate read_exact 0.0.1
[INFO] finished tweaking crates.io crate read_exact 0.0.1
[INFO] tweaked toml for crates.io crate read_exact 0.0.1 written to /workspace/builds/worker-87/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "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" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "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-87/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/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" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f68ddcf0a42e92c3ddb40bd86d68713b476cc17b19eae607765678bcce893e6e
[INFO] running `Command { std: "docker" "start" "-a" "f68ddcf0a42e92c3ddb40bd86d68713b476cc17b19eae607765678bcce893e6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f68ddcf0a42e92c3ddb40bd86d68713b476cc17b19eae607765678bcce893e6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f68ddcf0a42e92c3ddb40bd86d68713b476cc17b19eae607765678bcce893e6e", kill_on_drop: false }`
[INFO] [stdout] f68ddcf0a42e92c3ddb40bd86d68713b476cc17b19eae607765678bcce893e6e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/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" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e98d66168b4cde3198905f4c09ef314f64482716ed6cae973b907021c133f721
[INFO] running `Command { std: "docker" "start" "-a" "e98d66168b4cde3198905f4c09ef314f64482716ed6cae973b907021c133f721", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling read_exact v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.44s
[INFO] running `Command { std: "docker" "inspect" "e98d66168b4cde3198905f4c09ef314f64482716ed6cae973b907021c133f721", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e98d66168b4cde3198905f4c09ef314f64482716ed6cae973b907021c133f721", kill_on_drop: false }`
[INFO] [stdout] e98d66168b4cde3198905f4c09ef314f64482716ed6cae973b907021c133f721
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/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" "+d5c88c22807925c189328ef9d923c5d2b11a95b8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c66ac311cf9f1cdeddc7a940119228c10216b1d0d6c0b058d1c34cc64c28e36f
[INFO] running `Command { std: "docker" "start" "-a" "c66ac311cf9f1cdeddc7a940119228c10216b1d0d6c0b058d1c34cc64c28e36f", kill_on_drop: false }`
[INFO] [stderr]    Compiling read_exact v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.49s
[INFO] running `Command { std: "docker" "inspect" "c66ac311cf9f1cdeddc7a940119228c10216b1d0d6c0b058d1c34cc64c28e36f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c66ac311cf9f1cdeddc7a940119228c10216b1d0d6c0b058d1c34cc64c28e36f", kill_on_drop: false }`
[INFO] [stdout] c66ac311cf9f1cdeddc7a940119228c10216b1d0d6c0b058d1c34cc64c28e36f