[INFO] cloning repository https://github.com/derpibooru/fiberglass-wrapper
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/derpibooru/fiberglass-wrapper" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fderpibooru%2Ffiberglass-wrapper", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fderpibooru%2Ffiberglass-wrapper'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9d205f080de389e5867e465044fef3fdcc2ec61f
[INFO] checking derpibooru/fiberglass-wrapper against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fderpibooru%2Ffiberglass-wrapper" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/derpibooru/fiberglass-wrapper on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/derpibooru/fiberglass-wrapper
[INFO] finished tweaking git repo https://github.com/derpibooru/fiberglass-wrapper
[INFO] tweaked toml for git repo https://github.com/derpibooru/fiberglass-wrapper written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/derpibooru/fiberglass-wrapper 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ecef3f56f89a080c72c6735fab4ccb70a1a05073590894b1e369bb08b8aa435c
[INFO] running `Command { std: "docker" "start" "-a" "ecef3f56f89a080c72c6735fab4ccb70a1a05073590894b1e369bb08b8aa435c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ecef3f56f89a080c72c6735fab4ccb70a1a05073590894b1e369bb08b8aa435c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ecef3f56f89a080c72c6735fab4ccb70a1a05073590894b1e369bb08b8aa435c", kill_on_drop: false }`
[INFO] [stdout] ecef3f56f89a080c72c6735fab4ccb70a1a05073590894b1e369bb08b8aa435c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ca6c1230a05b549cff87e6d92f6f163f5a60ad0ad7d66430eb79a6ef0acf94c7
[INFO] running `Command { std: "docker" "start" "-a" "ca6c1230a05b549cff87e6d92f6f163f5a60ad0ad7d66430eb79a6ef0acf94c7", kill_on_drop: false }`
[INFO] [stderr]     Checking tinyvec v1.5.1
[INFO] [stderr]     Checking matches v0.1.9
[INFO] [stderr]     Checking unicode-bidi v0.3.7
[INFO] [stderr]     Checking chunked_transfer v1.4.0
[INFO] [stderr]     Checking once_cell v1.9.0
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]     Checking unicode-normalization v0.1.19
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]     Checking ureq v2.4.0
[INFO] [stderr]     Checking fiberglass-wrapper v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.56s
[INFO] running `Command { std: "docker" "inspect" "ca6c1230a05b549cff87e6d92f6f163f5a60ad0ad7d66430eb79a6ef0acf94c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca6c1230a05b549cff87e6d92f6f163f5a60ad0ad7d66430eb79a6ef0acf94c7", kill_on_drop: false }`
[INFO] [stdout] ca6c1230a05b549cff87e6d92f6f163f5a60ad0ad7d66430eb79a6ef0acf94c7