[INFO] fetching crate ext-string 0.1.5...
[INFO] checking ext-string-0.1.5 against 1.55.0 for beta-1.56-3
[INFO] extracting crate ext-string 0.1.5 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate ext-string 0.1.5 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ext-string 0.1.5
[INFO] finished tweaking crates.io crate ext-string 0.1.5
[INFO] tweaked toml for crates.io crate ext-string 0.1.5 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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" "+1.55.0" "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-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9c4d066c81eaaab14c8a59d84ac3f224f90bfcd62aa89a4e2e05987164195a9e
[INFO] running `Command { std: "docker" "start" "-a" "9c4d066c81eaaab14c8a59d84ac3f224f90bfcd62aa89a4e2e05987164195a9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9c4d066c81eaaab14c8a59d84ac3f224f90bfcd62aa89a4e2e05987164195a9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c4d066c81eaaab14c8a59d84ac3f224f90bfcd62aa89a4e2e05987164195a9e", kill_on_drop: false }`
[INFO] [stdout] 9c4d066c81eaaab14c8a59d84ac3f224f90bfcd62aa89a4e2e05987164195a9e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8d68b64b40e8c5b6970e0b6a0d2b0b0b856b927cee9de6d1365bc9761831854f
[INFO] running `Command { std: "docker" "start" "-a" "8d68b64b40e8c5b6970e0b6a0d2b0b0b856b927cee9de6d1365bc9761831854f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking unicode-segmentation v1.8.0
[INFO] [stderr]     Checking ext-string v0.1.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.05s
[INFO] running `Command { std: "docker" "inspect" "8d68b64b40e8c5b6970e0b6a0d2b0b0b856b927cee9de6d1365bc9761831854f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d68b64b40e8c5b6970e0b6a0d2b0b0b856b927cee9de6d1365bc9761831854f", kill_on_drop: false }`
[INFO] [stdout] 8d68b64b40e8c5b6970e0b6a0d2b0b0b856b927cee9de6d1365bc9761831854f
