[INFO] cloning repository https://github.com/HoloTheDrunk/field_iterator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/HoloTheDrunk/field_iterator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHoloTheDrunk%2Ffield_iterator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHoloTheDrunk%2Ffield_iterator'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b1642a960ba61a56ebcb03f363c752a57c148d70
[INFO] checking HoloTheDrunk/field_iterator/b1642a960ba61a56ebcb03f363c752a57c148d70 against master#40daf23eeb711dadf140b2536e67e3ff4c999196 for pr-142287
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHoloTheDrunk%2Ffield_iterator" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/HoloTheDrunk/field_iterator on toolchain 40daf23eeb711dadf140b2536e67e3ff4c999196
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+40daf23eeb711dadf140b2536e67e3ff4c999196" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/HoloTheDrunk/field_iterator
[INFO] finished tweaking git repo https://github.com/HoloTheDrunk/field_iterator
[INFO] tweaked toml for git repo https://github.com/HoloTheDrunk/field_iterator written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/HoloTheDrunk/field_iterator already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+40daf23eeb711dadf140b2536e67e3ff4c999196" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: package.author
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 1 package to latest compatible version
[INFO] [stderr]       Adding field_iterator_derive v0.1.0
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded field_iterator_derive v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+40daf23eeb711dadf140b2536e67e3ff4c999196" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 63025cdf1427b7f2227ec68aa39ae7eec83517e7715d62f81386cfb4cb2ea555
[INFO] running `Command { std: "docker" "start" "-a" "63025cdf1427b7f2227ec68aa39ae7eec83517e7715d62f81386cfb4cb2ea555", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "63025cdf1427b7f2227ec68aa39ae7eec83517e7715d62f81386cfb4cb2ea555", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63025cdf1427b7f2227ec68aa39ae7eec83517e7715d62f81386cfb4cb2ea555", kill_on_drop: false }`
[INFO] [stdout] 63025cdf1427b7f2227ec68aa39ae7eec83517e7715d62f81386cfb4cb2ea555
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+40daf23eeb711dadf140b2536e67e3ff4c999196" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7370b1de85916124aeb3afcc68fcf2bb3f74046cedcc838d5dfb0cc091e79904
[INFO] running `Command { std: "docker" "start" "-a" "7370b1de85916124aeb3afcc68fcf2bb3f74046cedcc838d5dfb0cc091e79904", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: package.author
[INFO] [stderr]    Compiling proc-macro2 v1.0.79
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]    Compiling field_iterator_derive v0.1.0
[INFO] [stderr]     Checking field_iterator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.20s
[INFO] running `Command { std: "docker" "inspect" "7370b1de85916124aeb3afcc68fcf2bb3f74046cedcc838d5dfb0cc091e79904", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7370b1de85916124aeb3afcc68fcf2bb3f74046cedcc838d5dfb0cc091e79904", kill_on_drop: false }`
[INFO] [stdout] 7370b1de85916124aeb3afcc68fcf2bb3f74046cedcc838d5dfb0cc091e79904