[INFO] cloning repository https://github.com/gagbo/rust_book_webserver
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gagbo/rust_book_webserver" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgagbo%2Frust_book_webserver", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgagbo%2Frust_book_webserver'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b4eaffd38f93929c6fd081e3eecd48b96cf0a967
[INFO] checking gagbo/rust_book_webserver against try#1bd50d4315eb15970d395b6be5823f9384707693 for pr-140151
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgagbo%2Frust_book_webserver" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] [stderr] fatal: update_ref failed for ref 'HEAD': cannot update the ref 'refs/heads/master': unable to create directory for '/workspace/builds/worker-7-tc2/source/.git/logs/refs/heads/master': No such file or directory
[INFO] checking gagbo/rust_book_webserver against try#1bd50d4315eb15970d395b6be5823f9384707693 for pr-140151
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgagbo%2Frust_book_webserver" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/gagbo/rust_book_webserver on toolchain 1bd50d4315eb15970d395b6be5823f9384707693
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1bd50d4315eb15970d395b6be5823f9384707693" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/gagbo/rust_book_webserver
[INFO] finished tweaking git repo https://github.com/gagbo/rust_book_webserver
[INFO] tweaked toml for git repo https://github.com/gagbo/rust_book_webserver written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/gagbo/rust_book_webserver 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" "+1bd50d4315eb15970d395b6be5823f9384707693" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+1bd50d4315eb15970d395b6be5823f9384707693" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a5444c95b1cff40f3706f002acdd56cce46d09c4bfe2ba6311567fd6581bfdcd
[INFO] running `Command { std: "docker" "start" "-a" "a5444c95b1cff40f3706f002acdd56cce46d09c4bfe2ba6311567fd6581bfdcd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a5444c95b1cff40f3706f002acdd56cce46d09c4bfe2ba6311567fd6581bfdcd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5444c95b1cff40f3706f002acdd56cce46d09c4bfe2ba6311567fd6581bfdcd", kill_on_drop: false }`
[INFO] [stdout] a5444c95b1cff40f3706f002acdd56cce46d09c4bfe2ba6311567fd6581bfdcd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+1bd50d4315eb15970d395b6be5823f9384707693" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5f3e3aa65ad2bfe9d633f4359374c5dcd6d2ed41b4f536ad4b7e330221501dcb
[INFO] running `Command { std: "docker" "start" "-a" "5f3e3aa65ad2bfe9d633f4359374c5dcd6d2ed41b4f536ad4b7e330221501dcb", kill_on_drop: false }`
[INFO] [stderr]     Checking rust_book_webserv v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] running `Command { std: "docker" "inspect" "5f3e3aa65ad2bfe9d633f4359374c5dcd6d2ed41b4f536ad4b7e330221501dcb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f3e3aa65ad2bfe9d633f4359374c5dcd6d2ed41b4f536ad4b7e330221501dcb", kill_on_drop: false }`
[INFO] [stdout] 5f3e3aa65ad2bfe9d633f4359374c5dcd6d2ed41b4f536ad4b7e330221501dcb