[INFO] cloning repository https://github.com/crabfishxy/rustlings-exercises
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/crabfishxy/rustlings-exercises" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcrabfishxy%2Frustlings-exercises", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcrabfishxy%2Frustlings-exercises'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8e313cffaaacc17716e0c9b95ef91b5520fa7824
[INFO] documenting crabfishxy/rustlings-exercises against 1.86.0 for beta-1.87-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcrabfishxy%2Frustlings-exercises" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/crabfishxy/rustlings-exercises on toolchain 1.86.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.86.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/crabfishxy/rustlings-exercises
[INFO] finished tweaking git repo https://github.com/crabfishxy/rustlings-exercises
[INFO] tweaked toml for git repo https://github.com/crabfishxy/rustlings-exercises written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/crabfishxy/rustlings-exercises 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" "+1.86.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+1.86.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fdcbc2c63d9b31c3ef1f56247bf910da1ba70b6ef4c69cc1363b0063cf85a559
[INFO] running `Command { std: "docker" "start" "-a" "fdcbc2c63d9b31c3ef1f56247bf910da1ba70b6ef4c69cc1363b0063cf85a559", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fdcbc2c63d9b31c3ef1f56247bf910da1ba70b6ef4c69cc1363b0063cf85a559", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fdcbc2c63d9b31c3ef1f56247bf910da1ba70b6ef4c69cc1363b0063cf85a559", kill_on_drop: false }`
[INFO] [stdout] fdcbc2c63d9b31c3ef1f56247bf910da1ba70b6ef4c69cc1363b0063cf85a559
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+1.86.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6d81d5c9f40b57827e262a9b71c79ddfb7c1d9ccac074f2bcd8dd99d84108f6d
[INFO] running `Command { std: "docker" "start" "-a" "6d81d5c9f40b57827e262a9b71c79ddfb7c1d9ccac074f2bcd8dd99d84108f6d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.93
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling syn v1.0.70
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[INFO] [stderr]    Compiling serde_derive v1.0.125
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[INFO] [stderr]  Documenting rustlings v4.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.95s
[INFO] [stderr]    Generated /opt/rustwide/target/doc/rustlings/index.html
[INFO] running `Command { std: "docker" "inspect" "6d81d5c9f40b57827e262a9b71c79ddfb7c1d9ccac074f2bcd8dd99d84108f6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d81d5c9f40b57827e262a9b71c79ddfb7c1d9ccac074f2bcd8dd99d84108f6d", kill_on_drop: false }`
[INFO] [stdout] 6d81d5c9f40b57827e262a9b71c79ddfb7c1d9ccac074f2bcd8dd99d84108f6d