[INFO] cloning repository https://github.com/LearningOS/rust-rustlings-2023-autumn-somewan820
[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-somewan820" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLearningOS%2Frust-rustlings-2023-autumn-somewan820", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLearningOS%2Frust-rustlings-2023-autumn-somewan820'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9d8b648ba100de6ce6d7df669f469ebe4430ff90
[INFO] documenting LearningOS/rust-rustlings-2023-autumn-somewan820 against 1.100.0-beta.1 for beta-rustdoc-1.100-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLearningOS%2Frust-rustlings-2023-autumn-somewan820" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/LearningOS/rust-rustlings-2023-autumn-somewan820
[INFO] finished tweaking git repo https://github.com/LearningOS/rust-rustlings-2023-autumn-somewan820
[INFO] tweaked toml for git repo https://github.com/LearningOS/rust-rustlings-2023-autumn-somewan820 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/LearningOS/rust-rustlings-2023-autumn-somewan820 on toolchain 1.100.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/LearningOS/rust-rustlings-2023-autumn-somewan820 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" "+1.100.0-beta.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] adfbe71980bed49f04d55449f440f1d16c2e21f60766ec6ed643484cab46eb76
[INFO] running `Command { std: "docker" "start" "adfbe71980bed49f04d55449f440f1d16c2e21f60766ec6ed643484cab46eb76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "adfbe71980bed49f04d55449f440f1d16c2e21f60766ec6ed643484cab46eb76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "adfbe71980bed49f04d55449f440f1d16c2e21f60766ec6ed643484cab46eb76" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "adfbe71980bed49f04d55449f440f1d16c2e21f60766ec6ed643484cab46eb76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "adfbe71980bed49f04d55449f440f1d16c2e21f60766ec6ed643484cab46eb76" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling proc-macro2 v1.0.64
[INFO] [stderr]    Compiling quote v1.0.29
[INFO] [stderr]    Compiling unicode-ident v1.0.10
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling serde v1.0.171
[INFO] [stderr]    Compiling parking_lot_core v0.9.8
[INFO] [stderr]     Checking log v0.4.19
[INFO] [stderr]     Checking regex-syntax v0.7.4
[INFO] [stderr]     Checking smallvec v1.11.0
[INFO] [stderr]     Checking unicode-width v0.1.10
[INFO] [stderr]    Compiling slab v0.4.8
[INFO] [stderr]    Compiling lock_api v0.4.10
[INFO] [stderr]    Compiling tokio v1.29.1
[INFO] [stderr]    Compiling argh_shared v0.1.10
[INFO] [stderr]    Compiling serde_json v1.0.102
[INFO] [stderr]     Checking walkdir v2.3.3
[INFO] [stderr]     Checking pin-project-lite v0.2.10
[INFO] [stderr]     Checking ryu v1.0.14
[INFO] [stderr]     Checking bytes v1.4.0
[INFO] [stderr]     Checking number_prefix v0.4.0
[INFO] [stderr]     Checking itoa v1.0.8
[INFO] [stderr]     Checking home v0.5.5
[INFO] [stderr]     Checking glob v0.3.1
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.39
[INFO] [stderr]     Checking inotify-sys v0.1.5
[INFO] [stderr]     Checking console v0.15.7
[INFO] [stderr]     Checking filetime v0.2.21
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]     Checking socket2 v0.4.9
[INFO] [stderr]     Checking mio v0.8.8
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking aho-corasick v1.0.2
[INFO] [stderr]     Checking inotify v0.7.1
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]    Compiling syn v2.0.25
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking mio-extras v2.0.6
[INFO] [stderr]     Checking notify v4.0.17
[INFO] [stderr]     Checking regex-automata v0.3.3
[INFO] [stderr]    Compiling argh_derive v0.1.10
[INFO] [stderr]     Checking argh v0.1.10
[INFO] [stderr]     Checking regex v1.9.1
[INFO] [stderr]     Checking indicatif v0.16.2
[INFO] [stderr]    Compiling serde_derive v1.0.171
[INFO] [stderr]    Compiling tokio-macros v2.1.0
[INFO] [stderr]     Checking toml v0.5.11
[INFO] [stderr]  Documenting rustlings v5.5.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unclosed HTML tag `filename`
[INFO] [stdout]   --> src/main.rs:88:50
[INFO] [stdout]    |
[INFO] [stdout] 88 | /// Resets a single exercise using "git stash -- <filename>"
[INFO] [stdout]    |                                                  ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(rustdoc::invalid_html_tags)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 18.80s
[INFO] [stderr]    Generated /opt/rustwide/target/doc/rustlings/index.html
[INFO] running `Command { std: "docker" "inspect" "adfbe71980bed49f04d55449f440f1d16c2e21f60766ec6ed643484cab46eb76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "adfbe71980bed49f04d55449f440f1d16c2e21f60766ec6ed643484cab46eb76", kill_on_drop: false }`
[INFO] [stdout] adfbe71980bed49f04d55449f440f1d16c2e21f60766ec6ed643484cab46eb76