[INFO] cloning repository https://github.com/os2edu/rustlings-anbo225
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/os2edu/rustlings-anbo225" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fos2edu%2Frustlings-anbo225", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fos2edu%2Frustlings-anbo225'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7ef3794706b2c714a5d468e9c8ab440f930565f0
[INFO] checking os2edu/rustlings-anbo225 against master#22572d0994593197593e2a1b7b18d720a9a349a7 for pr-126452-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fos2edu%2Frustlings-anbo225" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/os2edu/rustlings-anbo225 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/os2edu/rustlings-anbo225
[INFO] finished tweaking git repo https://github.com/os2edu/rustlings-anbo225
[INFO] tweaked toml for git repo https://github.com/os2edu/rustlings-anbo225 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/os2edu/rustlings-anbo225 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-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] bd41dfb0ada7065f651c5d4211acf3519db3a42624e1505fd47756ef23b20c03
[INFO] running `Command { std: "docker" "start" "-a" "bd41dfb0ada7065f651c5d4211acf3519db3a42624e1505fd47756ef23b20c03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bd41dfb0ada7065f651c5d4211acf3519db3a42624e1505fd47756ef23b20c03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd41dfb0ada7065f651c5d4211acf3519db3a42624e1505fd47756ef23b20c03", kill_on_drop: false }`
[INFO] [stdout] bd41dfb0ada7065f651c5d4211acf3519db3a42624e1505fd47756ef23b20c03
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] f13afefabdf465048240118110b4f2b962260a3d535633b69be5a2a0a0568bd8
[INFO] running `Command { std: "docker" "start" "-a" "f13afefabdf465048240118110b4f2b962260a3d535633b69be5a2a0a0568bd8", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.137
[INFO] [stderr]    Compiling syn v1.0.75
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]    Compiling parking_lot_core v0.9.4
[INFO] [stderr]     Checking regex v1.5.5
[INFO] [stderr]    Compiling serde_json v1.0.81
[INFO] [stderr]     Checking smallvec v1.10.0
[INFO] [stderr]     Checking itoa v1.0.2
[INFO] [stderr]    Compiling tokio v1.21.2
[INFO] [stderr]     Checking number_prefix v0.4.0
[INFO] [stderr]     Checking home v0.5.3
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking terminal_size v0.1.17
[INFO] [stderr]     Checking inotify-sys v0.1.5
[INFO] [stderr]     Checking socket2 v0.4.7
[INFO] [stderr]     Checking float-cmp v0.8.0
[INFO] [stderr]     Checking mio v0.8.5
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking console v0.15.0
[INFO] [stderr]     Checking inotify v0.7.1
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking filetime v0.2.15
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking predicates v1.0.8
[INFO] [stderr]     Checking indicatif v0.16.2
[INFO] [stderr]     Checking mio-extras v2.0.6
[INFO] [stderr]     Checking notify v4.0.17
[INFO] [stderr]    Compiling serde_derive v1.0.129
[INFO] [stderr]    Compiling tokio-macros v1.8.0
[INFO] [stderr]    Compiling argh_derive v0.1.5
[INFO] [stderr]     Checking argh v0.1.5
[INFO] [stderr]     Checking serde v1.0.129
[INFO] [stderr]     Checking toml v0.5.9
[INFO] [stderr]     Checking escargot v0.4.0
[INFO] [stderr]     Checking rustlings v5.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking assert_cmd v0.11.1
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 21.82s
[INFO] running `Command { std: "docker" "inspect" "f13afefabdf465048240118110b4f2b962260a3d535633b69be5a2a0a0568bd8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f13afefabdf465048240118110b4f2b962260a3d535633b69be5a2a0a0568bd8", kill_on_drop: false }`
[INFO] [stdout] f13afefabdf465048240118110b4f2b962260a3d535633b69be5a2a0a0568bd8
[INFO] checking os2edu/rustlings-anbo225 against try#6289438dbad80b1a0029c66dd3f6abf57c2c51be for pr-126452-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fos2edu%2Frustlings-anbo225" "/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/os2edu/rustlings-anbo225 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/os2edu/rustlings-anbo225
[INFO] finished tweaking git repo https://github.com/os2edu/rustlings-anbo225
[INFO] tweaked toml for git repo https://github.com/os2edu/rustlings-anbo225 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/os2edu/rustlings-anbo225 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-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d885a2ffa2f3ed079a72ea7c88621c2973a1d8157b9c05abc8a7811ddb8304b0
[INFO] running `Command { std: "docker" "start" "-a" "d885a2ffa2f3ed079a72ea7c88621c2973a1d8157b9c05abc8a7811ddb8304b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d885a2ffa2f3ed079a72ea7c88621c2973a1d8157b9c05abc8a7811ddb8304b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d885a2ffa2f3ed079a72ea7c88621c2973a1d8157b9c05abc8a7811ddb8304b0", kill_on_drop: false }`
[INFO] [stdout] d885a2ffa2f3ed079a72ea7c88621c2973a1d8157b9c05abc8a7811ddb8304b0
[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" "-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] b1f9d2de3bcffdd588f52c7c56ff02befe88ffea94b7a1b4f12bc1d2b5e143f8
[INFO] running `Command { std: "docker" "start" "-a" "b1f9d2de3bcffdd588f52c7c56ff02befe88ffea94b7a1b4f12bc1d2b5e143f8", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.137
[INFO] [stderr]    Compiling syn v1.0.75
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]     Checking regex v1.5.5
[INFO] [stderr]    Compiling serde_json v1.0.81
[INFO] [stderr]    Compiling parking_lot_core v0.9.4
[INFO] [stderr]     Checking smallvec v1.10.0
[INFO] [stderr]     Checking itoa v1.0.2
[INFO] [stderr]    Compiling tokio v1.21.2
[INFO] [stderr]     Checking number_prefix v0.4.0
[INFO] [stderr]     Checking home v0.5.3
[INFO] [stderr]     Checking float-cmp v0.8.0
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking inotify-sys v0.1.5
[INFO] [stderr]     Checking terminal_size v0.1.17
[INFO] [stderr]     Checking socket2 v0.4.7
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking console v0.15.0
[INFO] [stderr]     Checking mio v0.8.5
[INFO] [stderr]     Checking inotify v0.7.1
[INFO] [stderr]     Checking filetime v0.2.15
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking predicates v1.0.8
[INFO] [stderr]     Checking indicatif v0.16.2
[INFO] [stderr]     Checking mio-extras v2.0.6
[INFO] [stderr]     Checking notify v4.0.17
[INFO] [stderr]    Compiling serde_derive v1.0.129
[INFO] [stderr]    Compiling tokio-macros v1.8.0
[INFO] [stderr]    Compiling argh_derive v0.1.5
[INFO] [stderr]     Checking argh v0.1.5
[INFO] [stderr]     Checking serde v1.0.129
[INFO] [stderr]     Checking toml v0.5.9
[INFO] [stderr]     Checking escargot v0.4.0
[INFO] [stderr]     Checking rustlings v5.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking assert_cmd v0.11.1
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.48s
[INFO] running `Command { std: "docker" "inspect" "b1f9d2de3bcffdd588f52c7c56ff02befe88ffea94b7a1b4f12bc1d2b5e143f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b1f9d2de3bcffdd588f52c7c56ff02befe88ffea94b7a1b4f12bc1d2b5e143f8", kill_on_drop: false }`
[INFO] [stdout] b1f9d2de3bcffdd588f52c7c56ff02befe88ffea94b7a1b4f12bc1d2b5e143f8