[INFO] cloning repository https://github.com/ferranSanchezLlado/rust_book_exercises
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ferranSanchezLlado/rust_book_exercises" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FferranSanchezLlado%2Frust_book_exercises", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FferranSanchezLlado%2Frust_book_exercises'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2fc99d3cb9d9d2239b812676924f3aa88b6ba8ff
[INFO] checking ferranSanchezLlado/rust_book_exercises against try#b4c55082edd8dec08ce8af276d7054d9c4db20c4 for pr-147984
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FferranSanchezLlado%2Frust_book_exercises" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/ferranSanchezLlado/rust_book_exercises
[INFO] finished tweaking git repo https://github.com/ferranSanchezLlado/rust_book_exercises
[INFO] tweaked toml for git repo https://github.com/ferranSanchezLlado/rust_book_exercises written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ferranSanchezLlado/rust_book_exercises on toolchain b4c55082edd8dec08ce8af276d7054d9c4db20c4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b4c55082edd8dec08ce8af276d7054d9c4db20c4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/ferranSanchezLlado/rust_book_exercises 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" "+b4c55082edd8dec08ce8af276d7054d9c4db20c4" "fetch" "--manifest-path" "Cargo.toml", 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b4c55082edd8dec08ce8af276d7054d9c4db20c4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4099c52589a26425d13d9b06563575b3d3999d40e02816434c06d1468634362a
[INFO] running `Command { std: "docker" "start" "-a" "4099c52589a26425d13d9b06563575b3d3999d40e02816434c06d1468634362a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4099c52589a26425d13d9b06563575b3d3999d40e02816434c06d1468634362a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4099c52589a26425d13d9b06563575b3d3999d40e02816434c06d1468634362a", kill_on_drop: false }`
[INFO] [stdout] 4099c52589a26425d13d9b06563575b3d3999d40e02816434c06d1468634362a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b4c55082edd8dec08ce8af276d7054d9c4db20c4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 28c4ad3caa4510b02c74087d00930c2bd0a8757c4db059b06cfdfbd583145ce0
[INFO] running `Command { std: "docker" "start" "-a" "28c4ad3caa4510b02c74087d00930c2bd0a8757c4db059b06cfdfbd583145ce0", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]     Checking add_two v0.1.0 (/opt/rustwide/workdir/src/more_about_cargo_and_crates_io_14/add/add_two)
[INFO] [stderr]     Checking add_one v0.1.0 (/opt/rustwide/workdir/src/more_about_cargo_and_crates_io_14/add/add_one)
[INFO] [stderr]    Compiling paste v1.0.7
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking threadpool v1.8.1
[INFO] [stderr]     Checking rust_book_exercises v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.32s
[INFO] running `Command { std: "docker" "inspect" "28c4ad3caa4510b02c74087d00930c2bd0a8757c4db059b06cfdfbd583145ce0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "28c4ad3caa4510b02c74087d00930c2bd0a8757c4db059b06cfdfbd583145ce0", kill_on_drop: false }`
[INFO] [stdout] 28c4ad3caa4510b02c74087d00930c2bd0a8757c4db059b06cfdfbd583145ce0