[INFO] fetching crate utf8-io 0.6.0...
[INFO] checking utf8-io-0.6.0 against try#07fecb9cf34c4979a772ba38c99d6d9144768413 for pr-87710
[INFO] extracting crate utf8-io 0.6.0 into /workspace/builds/worker-65/source
[INFO] validating manifest of crates.io crate utf8-io 0.6.0 on toolchain 07fecb9cf34c4979a772ba38c99d6d9144768413
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate utf8-io 0.6.0
[INFO] finished tweaking crates.io crate utf8-io 0.6.0
[INFO] tweaked toml for crates.io crate utf8-io 0.6.0 written to /workspace/builds/worker-65/source/Cargo.toml
[INFO] crate crates.io crate utf8-io 0.6.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded errno v0.2.7
[INFO] [stderr]   Downloaded os_pipe v0.9.2
[INFO] [stderr]   Downloaded io-lifetimes v0.2.3
[INFO] [stderr]   Downloaded rsix v0.18.0
[INFO] [stderr]   Downloaded errno-dragonfly v0.1.1
[INFO] [stderr]   Downloaded layered-io v0.7.0
[INFO] [stderr]   Downloaded duplex v0.6.0
[INFO] [stderr]   Downloaded terminfo v0.7.3
[INFO] [stderr]   Downloaded unsafe-io v0.8.2
[INFO] [stderr]   Downloaded linux-raw-sys v0.0.19
[INFO] [stderr]   Downloaded terminal-io v0.6.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-65/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-65/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" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ae01cc8a5f982f54ebdbfe075f2d3ddadd3a9a22b7e9df4bb10a17444a434fc9
[INFO] running `Command { std: "docker" "start" "-a" "ae01cc8a5f982f54ebdbfe075f2d3ddadd3a9a22b7e9df4bb10a17444a434fc9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ae01cc8a5f982f54ebdbfe075f2d3ddadd3a9a22b7e9df4bb10a17444a434fc9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae01cc8a5f982f54ebdbfe075f2d3ddadd3a9a22b7e9df4bb10a17444a434fc9", kill_on_drop: false }`
[INFO] [stdout] ae01cc8a5f982f54ebdbfe075f2d3ddadd3a9a22b7e9df4bb10a17444a434fc9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-65/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-65/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" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fb0717eb4e51766c12758a0f845370890bb8f8d22f7b7d6a11bcd35470d9039d
[INFO] running `Command { std: "docker" "start" "-a" "fb0717eb4e51766c12758a0f845370890bb8f8d22f7b7d6a11bcd35470d9039d", 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] [stderr]    Compiling semver v1.0.4
[INFO] [stderr]    Compiling libc v0.2.99
[INFO] [stderr]     Checking duplex v0.6.0
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling io-lifetimes v0.2.3
[INFO] [stderr]    Compiling unsafe-io v0.8.2
[INFO] [stderr]    Compiling layered-io v0.7.0
[INFO] [stderr]     Checking os_pipe v0.9.2
[INFO] [stderr]     Checking utf8-io v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.34s
[INFO] running `Command { std: "docker" "inspect" "fb0717eb4e51766c12758a0f845370890bb8f8d22f7b7d6a11bcd35470d9039d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb0717eb4e51766c12758a0f845370890bb8f8d22f7b7d6a11bcd35470d9039d", kill_on_drop: false }`
[INFO] [stdout] fb0717eb4e51766c12758a0f845370890bb8f8d22f7b7d6a11bcd35470d9039d