[INFO] cloning repository https://github.com/mitch292/rustlings-solutions
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mitch292/rustlings-solutions" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmitch292%2Frustlings-solutions", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmitch292%2Frustlings-solutions'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 83bbd9e82e98b4ec1ab81a1d55bb8688e920a905
[INFO] checking mitch292/rustlings-solutions against master#22572d0994593197593e2a1b7b18d720a9a349a7 for pr-126452-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmitch292%2Frustlings-solutions" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mitch292/rustlings-solutions 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/mitch292/rustlings-solutions
[INFO] finished tweaking git repo https://github.com/mitch292/rustlings-solutions
[INFO] tweaked toml for git repo https://github.com/mitch292/rustlings-solutions written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/mitch292/rustlings-solutions 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] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 9 packages to latest compatible versions
[INFO] [stderr]       Adding console v0.7.7 (latest: v0.15.8)
[INFO] [stderr]       Adding console v0.15.1 (latest: v0.15.8)
[INFO] [stderr]     Updating indicatif v0.9.0 -> v0.10.3 (latest: v0.17.8)
[INFO] [stderr]     Updating inotify v0.6.1 -> v0.7.1 (latest: v0.11.0)
[INFO] [stderr]     Updating notify v4.0.12 -> v4.0.18 (latest: v6.1.1)
[INFO] [stderr]       Adding number_prefix v0.2.8 (latest: v0.4.0)
[INFO] [stderr]       Adding once_cell v1.19.0
[INFO] [stderr]       Adding terminal_size v0.1.17 (latest: v0.3.0)
[INFO] [stderr]     Updating winapi v0.3.7 -> v0.3.9
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded console v0.15.1
[INFO] [stderr]   Downloaded notify v4.0.18
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 926ad981b0911c0e5216e2cf016a0f848da3203789fce42acdc27a9e40f0dbf2
[INFO] running `Command { std: "docker" "start" "-a" "926ad981b0911c0e5216e2cf016a0f848da3203789fce42acdc27a9e40f0dbf2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "926ad981b0911c0e5216e2cf016a0f848da3203789fce42acdc27a9e40f0dbf2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "926ad981b0911c0e5216e2cf016a0f848da3203789fce42acdc27a9e40f0dbf2", kill_on_drop: false }`
[INFO] [stdout] 926ad981b0911c0e5216e2cf016a0f848da3203789fce42acdc27a9e40f0dbf2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 397df69a6edc9521bc3d70c8d7606c047f9ed338f2eb2b3a59c903e6db89961c
[INFO] running `Command { std: "docker" "start" "-a" "397df69a6edc9521bc3d70c8d7606c047f9ed338f2eb2b3a59c903e6db89961c", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]     Checking terminal_size v0.1.17
[INFO] [stderr]     Checking inotify v0.7.1
[INFO] [stderr]     Checking console v0.7.7
[INFO] [stderr]     Checking console v0.15.1
[INFO] [stderr]     Checking notify v4.0.18
[INFO] [stderr]     Checking number_prefix v0.2.8
[INFO] [stderr]     Checking float-cmp v0.4.0
[INFO] [stderr]     Checking indicatif v0.10.3
[INFO] [stderr]     Checking predicates v1.0.1
[INFO] [stderr]     Checking rustlings v2.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking assert_cmd v0.11.1
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.19s
[INFO] running `Command { std: "docker" "inspect" "397df69a6edc9521bc3d70c8d7606c047f9ed338f2eb2b3a59c903e6db89961c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "397df69a6edc9521bc3d70c8d7606c047f9ed338f2eb2b3a59c903e6db89961c", kill_on_drop: false }`
[INFO] [stdout] 397df69a6edc9521bc3d70c8d7606c047f9ed338f2eb2b3a59c903e6db89961c
[INFO] checking mitch292/rustlings-solutions against try#6289438dbad80b1a0029c66dd3f6abf57c2c51be for pr-126452-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmitch292%2Frustlings-solutions" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mitch292/rustlings-solutions 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/mitch292/rustlings-solutions
[INFO] finished tweaking git repo https://github.com/mitch292/rustlings-solutions
[INFO] tweaked toml for git repo https://github.com/mitch292/rustlings-solutions written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/mitch292/rustlings-solutions 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] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 9 packages to latest compatible versions
[INFO] [stderr]       Adding console v0.7.7 (latest: v0.15.8)
[INFO] [stderr]       Adding console v0.15.1 (latest: v0.15.8)
[INFO] [stderr]     Updating indicatif v0.9.0 -> v0.10.3 (latest: v0.17.8)
[INFO] [stderr]     Updating inotify v0.6.1 -> v0.7.1 (latest: v0.11.0)
[INFO] [stderr]     Updating notify v4.0.12 -> v4.0.18 (latest: v6.1.1)
[INFO] [stderr]       Adding number_prefix v0.2.8 (latest: v0.4.0)
[INFO] [stderr]       Adding once_cell v1.19.0
[INFO] [stderr]       Adding terminal_size v0.1.17 (latest: v0.3.0)
[INFO] [stderr]     Updating winapi v0.3.7 -> v0.3.9
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 648df35a9aa3652abe01ea0bb76798a6809a04b66c1a7bd86bfa9b74e635aa9d
[INFO] running `Command { std: "docker" "start" "-a" "648df35a9aa3652abe01ea0bb76798a6809a04b66c1a7bd86bfa9b74e635aa9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "648df35a9aa3652abe01ea0bb76798a6809a04b66c1a7bd86bfa9b74e635aa9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "648df35a9aa3652abe01ea0bb76798a6809a04b66c1a7bd86bfa9b74e635aa9d", kill_on_drop: false }`
[INFO] [stdout] 648df35a9aa3652abe01ea0bb76798a6809a04b66c1a7bd86bfa9b74e635aa9d
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f7895912c01078748185751437669d8abc671e52960ee82ee10c410f48c8a4d7
[INFO] running `Command { std: "docker" "start" "-a" "f7895912c01078748185751437669d8abc671e52960ee82ee10c410f48c8a4d7", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]     Checking terminal_size v0.1.17
[INFO] [stderr]     Checking inotify v0.7.1
[INFO] [stderr]     Checking console v0.7.7
[INFO] [stderr]     Checking console v0.15.1
[INFO] [stderr]     Checking notify v4.0.18
[INFO] [stderr]     Checking float-cmp v0.4.0
[INFO] [stderr]     Checking number_prefix v0.2.8
[INFO] [stderr]     Checking predicates v1.0.1
[INFO] [stderr]     Checking indicatif v0.10.3
[INFO] [stderr]     Checking rustlings v2.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking assert_cmd v0.11.1
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.84s
[INFO] running `Command { std: "docker" "inspect" "f7895912c01078748185751437669d8abc671e52960ee82ee10c410f48c8a4d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7895912c01078748185751437669d8abc671e52960ee82ee10c410f48c8a4d7", kill_on_drop: false }`
[INFO] [stdout] f7895912c01078748185751437669d8abc671e52960ee82ee10c410f48c8a4d7