[INFO] cloning repository https://github.com/wjlewis/little_scheme
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wjlewis/little_scheme" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwjlewis%2Flittle_scheme", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwjlewis%2Flittle_scheme'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] be5bdc48658ddf85626e38b87afe71f9097d7a54
[INFO] documenting wjlewis/little_scheme against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwjlewis%2Flittle_scheme" "/workspace/builds/worker-36/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-36/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/wjlewis/little_scheme on toolchain beta-2022-05-20
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/wjlewis/little_scheme
[INFO] finished tweaking git repo https://github.com/wjlewis/little_scheme
[INFO] tweaked toml for git repo https://github.com/wjlewis/little_scheme written to /workspace/builds/worker-36/source/Cargo.toml
[INFO] crate git repo https://github.com/wjlewis/little_scheme already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8b1eef752b7f1431108f57ba7d1ca004a07fa5b20583ac125f375d62ae69f2b5
[INFO] running `Command { std: "docker" "start" "-a" "8b1eef752b7f1431108f57ba7d1ca004a07fa5b20583ac125f375d62ae69f2b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8b1eef752b7f1431108f57ba7d1ca004a07fa5b20583ac125f375d62ae69f2b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b1eef752b7f1431108f57ba7d1ca004a07fa5b20583ac125f375d62ae69f2b5", kill_on_drop: false }`
[INFO] [stdout] 8b1eef752b7f1431108f57ba7d1ca004a07fa5b20583ac125f375d62ae69f2b5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/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" "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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 76a130b2fc6e0c4c84e88ce21dd48133792603398129e11e7f36c0a87486bf9e
[INFO] running `Command { std: "docker" "start" "-a" "76a130b2fc6e0c4c84e88ce21dd48133792603398129e11e7f36c0a87486bf9e", kill_on_drop: false }`
[INFO] [stderr]     Checking little_scheme v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting little_scheme v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/heap.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub fn new(size: usize, get_roots: Box<dyn Fn() -> Vec<usize>>) -> Heap {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.58s
[INFO] running `Command { std: "docker" "inspect" "76a130b2fc6e0c4c84e88ce21dd48133792603398129e11e7f36c0a87486bf9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76a130b2fc6e0c4c84e88ce21dd48133792603398129e11e7f36c0a87486bf9e", kill_on_drop: false }`
[INFO] [stdout] 76a130b2fc6e0c4c84e88ce21dd48133792603398129e11e7f36c0a87486bf9e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/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" "RUSTC_BOOTSTRAP=1" "-e" "DOCS_RS=1" "-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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "rustdoc" "--lib" "-Zrustdoc-map" "--frozen" "--message-format=json" "--" "-Z" "unstable-options" "--document-private-items", kill_on_drop: false }`
[INFO] [stdout] 9124fe2ee5e2d5775f77b2cf10045c4348d27b60adc2b4ef0a9abc9f22e29a6f
[INFO] running `Command { std: "docker" "start" "-a" "9124fe2ee5e2d5775f77b2cf10045c4348d27b60adc2b4ef0a9abc9f22e29a6f", kill_on_drop: false }`
[INFO] [stderr]  Documenting little_scheme v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.83s
[INFO] running `Command { std: "docker" "inspect" "9124fe2ee5e2d5775f77b2cf10045c4348d27b60adc2b4ef0a9abc9f22e29a6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9124fe2ee5e2d5775f77b2cf10045c4348d27b60adc2b4ef0a9abc9f22e29a6f", kill_on_drop: false }`
[INFO] [stdout] 9124fe2ee5e2d5775f77b2cf10045c4348d27b60adc2b4ef0a9abc9f22e29a6f