[INFO] cloning repository https://github.com/bitristan/learn_rust_rustlings
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bitristan/learn_rust_rustlings" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbitristan%2Flearn_rust_rustlings", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbitristan%2Flearn_rust_rustlings'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3e44faddda3513f7e8a68b719caa6712af3c1925
[INFO] checking bitristan/learn_rust_rustlings/3e44faddda3513f7e8a68b719caa6712af3c1925 against try#24cd45d7714ba43afd4b8e62fb677b069b21c4a5 for pr-129543
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbitristan%2Flearn_rust_rustlings" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/bitristan/learn_rust_rustlings on toolchain 24cd45d7714ba43afd4b8e62fb677b069b21c4a5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/bitristan/learn_rust_rustlings
[INFO] finished tweaking git repo https://github.com/bitristan/learn_rust_rustlings
[INFO] tweaked toml for git repo https://github.com/bitristan/learn_rust_rustlings written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/bitristan/learn_rust_rustlings 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" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 958e7aed58d6e6ab20c4fe18f21b4e2a28a10ce05e3542170f59eb6406f2dcbc
[INFO] running `Command { std: "docker" "start" "-a" "958e7aed58d6e6ab20c4fe18f21b4e2a28a10ce05e3542170f59eb6406f2dcbc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "958e7aed58d6e6ab20c4fe18f21b4e2a28a10ce05e3542170f59eb6406f2dcbc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "958e7aed58d6e6ab20c4fe18f21b4e2a28a10ce05e3542170f59eb6406f2dcbc", kill_on_drop: false }`
[INFO] [stdout] 958e7aed58d6e6ab20c4fe18f21b4e2a28a10ce05e3542170f59eb6406f2dcbc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7adabed5cd2ed96da6ddd2a3db892bfc7a3957a0d18bd2b583cdd64d7ac0f139
[INFO] running `Command { std: "docker" "start" "-a" "7adabed5cd2ed96da6ddd2a3db892bfc7a3957a0d18bd2b583cdd64d7ac0f139", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_json v1.0.81
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking itoa v1.0.2
[INFO] [stderr]     Checking once_cell v1.10.0
[INFO] [stderr]     Checking number_prefix v0.4.0
[INFO] [stderr]     Checking home v0.5.3
[INFO] [stderr]     Checking regex v1.5.5
[INFO] [stderr]     Checking toml v0.5.9
[INFO] [stderr]     Checking console v0.15.0
[INFO] [stderr]     Checking float-cmp v0.8.0
[INFO] [stderr]     Checking predicates v1.0.8
[INFO] [stderr]     Checking escargot v0.4.0
[INFO] [stderr]     Checking indicatif v0.16.2
[INFO] [stderr]     Checking assert_cmd v0.11.1
[INFO] [stderr]     Checking rustlings v4.8.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.54s
[INFO] running `Command { std: "docker" "inspect" "7adabed5cd2ed96da6ddd2a3db892bfc7a3957a0d18bd2b583cdd64d7ac0f139", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7adabed5cd2ed96da6ddd2a3db892bfc7a3957a0d18bd2b583cdd64d7ac0f139", kill_on_drop: false }`
[INFO] [stdout] 7adabed5cd2ed96da6ddd2a3db892bfc7a3957a0d18bd2b583cdd64d7ac0f139