[INFO] cloning repository https://github.com/njsfield/rust-json-parse-exercise
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/njsfield/rust-json-parse-exercise" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnjsfield%2Frust-json-parse-exercise", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnjsfield%2Frust-json-parse-exercise'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a9807567f8cd85ba49d1319597a5c79157d73d92
[INFO] building njsfield/rust-json-parse-exercise against try#4987e9d4227139400384ab59296ffee3b0fb1183 for pr-146237-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnjsfield%2Frust-json-parse-exercise" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/njsfield/rust-json-parse-exercise
[INFO] finished tweaking git repo https://github.com/njsfield/rust-json-parse-exercise
[INFO] tweaked toml for git repo https://github.com/njsfield/rust-json-parse-exercise written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/njsfield/rust-json-parse-exercise on toolchain 4987e9d4227139400384ab59296ffee3b0fb1183
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/njsfield/rust-json-parse-exercise 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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c883244aa29a85c15633fafbd867719d017c34dbdcd3a8ffa0f808c82ee0b65a
[INFO] running `Command { std: "docker" "start" "-a" "c883244aa29a85c15633fafbd867719d017c34dbdcd3a8ffa0f808c82ee0b65a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c883244aa29a85c15633fafbd867719d017c34dbdcd3a8ffa0f808c82ee0b65a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c883244aa29a85c15633fafbd867719d017c34dbdcd3a8ffa0f808c82ee0b65a", kill_on_drop: false }`
[INFO] [stdout] c883244aa29a85c15633fafbd867719d017c34dbdcd3a8ffa0f808c82ee0b65a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1a32d1cf7768ee18ae9aed827314adbf8e13e7bb7df958a68632cb2a76e62cd6
[INFO] running `Command { std: "docker" "start" "-a" "1a32d1cf7768ee18ae9aed827314adbf8e13e7bb7df958a68632cb2a76e62cd6", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling regex-syntax v0.6.29
[INFO] [stderr]    Compiling aho-corasick v0.7.20
[INFO] [stderr]    Compiling regex v1.7.3
[INFO] [stderr]    Compiling rust-json-parse-exercise v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.64s
[INFO] running `Command { std: "docker" "inspect" "1a32d1cf7768ee18ae9aed827314adbf8e13e7bb7df958a68632cb2a76e62cd6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a32d1cf7768ee18ae9aed827314adbf8e13e7bb7df958a68632cb2a76e62cd6", kill_on_drop: false }`
[INFO] [stdout] 1a32d1cf7768ee18ae9aed827314adbf8e13e7bb7df958a68632cb2a76e62cd6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d1ecef5011f50502d8b1e74506c5802f40ac3126d96daf7adcd4b838891afdcd
[INFO] running `Command { std: "docker" "start" "-a" "d1ecef5011f50502d8b1e74506c5802f40ac3126d96daf7adcd4b838891afdcd", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-json-parse-exercise v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.42s
[INFO] running `Command { std: "docker" "inspect" "d1ecef5011f50502d8b1e74506c5802f40ac3126d96daf7adcd4b838891afdcd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1ecef5011f50502d8b1e74506c5802f40ac3126d96daf7adcd4b838891afdcd", kill_on_drop: false }`
[INFO] [stdout] d1ecef5011f50502d8b1e74506c5802f40ac3126d96daf7adcd4b838891afdcd