[INFO] cloning repository https://github.com/LearningOS/rust-rustlings-2023-autumn-vx1day [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/LearningOS/rust-rustlings-2023-autumn-vx1day" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLearningOS%2Frust-rustlings-2023-autumn-vx1day", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLearningOS%2Frust-rustlings-2023-autumn-vx1day'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] b9c92a5d82d5ad5445dce4424dee303038301fbf [INFO] checking LearningOS/rust-rustlings-2023-autumn-vx1day/b9c92a5d82d5ad5445dce4424dee303038301fbf against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLearningOS%2Frust-rustlings-2023-autumn-vx1day" "/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/LearningOS/rust-rustlings-2023-autumn-vx1day on toolchain c387b04bf028733cd561d62128c8a5eee4bc1458 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/LearningOS/rust-rustlings-2023-autumn-vx1day [INFO] finished tweaking git repo https://github.com/LearningOS/rust-rustlings-2023-autumn-vx1day [INFO] tweaked toml for git repo https://github.com/LearningOS/rust-rustlings-2023-autumn-vx1day written to /workspace/builds/worker-7-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/LearningOS/rust-rustlings-2023-autumn-vx1day 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" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] a474d8038dd7875dbf1d3974f8b333e92bfa75c627bd2e255d4dbfaba6f7d33c [INFO] running `Command { std: "docker" "start" "-a" "a474d8038dd7875dbf1d3974f8b333e92bfa75c627bd2e255d4dbfaba6f7d33c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a474d8038dd7875dbf1d3974f8b333e92bfa75c627bd2e255d4dbfaba6f7d33c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a474d8038dd7875dbf1d3974f8b333e92bfa75c627bd2e255d4dbfaba6f7d33c", kill_on_drop: false }` [INFO] [stdout] a474d8038dd7875dbf1d3974f8b333e92bfa75c627bd2e255d4dbfaba6f7d33c [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 -Dtail_expr_drop_order" "-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 9a55178b3772c9f8db0e90b81ab5aade2e5ec9592a8ab7be0381c822580ffa2b [INFO] running `Command { std: "docker" "start" "-a" "9a55178b3772c9f8db0e90b81ab5aade2e5ec9592a8ab7be0381c822580ffa2b", kill_on_drop: false }` [INFO] [stderr] Checking rustlings v5.5.1 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.39s [INFO] running `Command { std: "docker" "inspect" "9a55178b3772c9f8db0e90b81ab5aade2e5ec9592a8ab7be0381c822580ffa2b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9a55178b3772c9f8db0e90b81ab5aade2e5ec9592a8ab7be0381c822580ffa2b", kill_on_drop: false }` [INFO] [stdout] 9a55178b3772c9f8db0e90b81ab5aade2e5ec9592a8ab7be0381c822580ffa2b