[INFO] cloning repository https://github.com/KelvinThaslim/Rustlings
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/KelvinThaslim/Rustlings" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKelvinThaslim%2FRustlings", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKelvinThaslim%2FRustlings'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c122ca3fcb4defed3dee800f67f406ceaeccdb6f
[INFO] checking KelvinThaslim/Rustlings against master#22572d0994593197593e2a1b7b18d720a9a349a7 for pr-126452-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKelvinThaslim%2FRustlings" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/KelvinThaslim/Rustlings on toolchain 22572d0994593197593e2a1b7b18d720a9a349a7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/KelvinThaslim/Rustlings
[INFO] finished tweaking git repo https://github.com/KelvinThaslim/Rustlings
[INFO] tweaked toml for git repo https://github.com/KelvinThaslim/Rustlings written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/KelvinThaslim/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" "+22572d0994593197593e2a1b7b18d720a9a349a7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 26fbb11a9fbe8594949beec58a03616411df6af7af5aea4e9072f88ce69cc103
[INFO] running `Command { std: "docker" "start" "-a" "26fbb11a9fbe8594949beec58a03616411df6af7af5aea4e9072f88ce69cc103", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "26fbb11a9fbe8594949beec58a03616411df6af7af5aea4e9072f88ce69cc103", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "26fbb11a9fbe8594949beec58a03616411df6af7af5aea4e9072f88ce69cc103", kill_on_drop: false }`
[INFO] [stdout] 26fbb11a9fbe8594949beec58a03616411df6af7af5aea4e9072f88ce69cc103
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "+22572d0994593197593e2a1b7b18d720a9a349a7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f1453ce144fe1f6ef495beb6376c64b5d7227a3608603f28032475f0a6fa3b33
[INFO] running `Command { std: "docker" "start" "-a" "f1453ce144fe1f6ef495beb6376c64b5d7227a3608603f28032475f0a6fa3b33", kill_on_drop: false }`
[INFO] [stderr]     Checking rustlings v5.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.92s
[INFO] running `Command { std: "docker" "inspect" "f1453ce144fe1f6ef495beb6376c64b5d7227a3608603f28032475f0a6fa3b33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1453ce144fe1f6ef495beb6376c64b5d7227a3608603f28032475f0a6fa3b33", kill_on_drop: false }`
[INFO] [stdout] f1453ce144fe1f6ef495beb6376c64b5d7227a3608603f28032475f0a6fa3b33
[INFO] checking KelvinThaslim/Rustlings against try#6289438dbad80b1a0029c66dd3f6abf57c2c51be for pr-126452-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKelvinThaslim%2FRustlings" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/KelvinThaslim/Rustlings on toolchain 6289438dbad80b1a0029c66dd3f6abf57c2c51be
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/KelvinThaslim/Rustlings
[INFO] finished tweaking git repo https://github.com/KelvinThaslim/Rustlings
[INFO] tweaked toml for git repo https://github.com/KelvinThaslim/Rustlings written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/KelvinThaslim/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" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 970aea37b90f22419c9a8f7afff62210f946b48285155a4f08c0bdfd241b39e5
[INFO] running `Command { std: "docker" "start" "-a" "970aea37b90f22419c9a8f7afff62210f946b48285155a4f08c0bdfd241b39e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "970aea37b90f22419c9a8f7afff62210f946b48285155a4f08c0bdfd241b39e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "970aea37b90f22419c9a8f7afff62210f946b48285155a4f08c0bdfd241b39e5", kill_on_drop: false }`
[INFO] [stdout] 970aea37b90f22419c9a8f7afff62210f946b48285155a4f08c0bdfd241b39e5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 106d57409ede8f7351b324cafd0f35e1d6297e4ebd013e4b47509eb6850d52da
[INFO] running `Command { std: "docker" "start" "-a" "106d57409ede8f7351b324cafd0f35e1d6297e4ebd013e4b47509eb6850d52da", kill_on_drop: false }`
[INFO] [stderr]     Checking rustlings v5.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `Command { std: "docker" "inspect" "106d57409ede8f7351b324cafd0f35e1d6297e4ebd013e4b47509eb6850d52da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "106d57409ede8f7351b324cafd0f35e1d6297e4ebd013e4b47509eb6850d52da", kill_on_drop: false }`
[INFO] [stdout] 106d57409ede8f7351b324cafd0f35e1d6297e4ebd013e4b47509eb6850d52da