[INFO] cloning repository https://github.com/NorbertBodziony/matching_engine
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/NorbertBodziony/matching_engine" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNorbertBodziony%2Fmatching_engine", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNorbertBodziony%2Fmatching_engine'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8f977a91d8d0bde0ed832f22f0d976696301f063
[INFO] documenting NorbertBodziony/matching_engine 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%2FNorbertBodziony%2Fmatching_engine" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/NorbertBodziony/matching_engine 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/NorbertBodziony/matching_engine
[INFO] finished tweaking git repo https://github.com/NorbertBodziony/matching_engine
[INFO] tweaked toml for git repo https://github.com/NorbertBodziony/matching_engine written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/NorbertBodziony/matching_engine 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 4a1f212ace22f4c72e7a1dff8b73b203b06d4527fd161c6bfe11e542cf377e27
[INFO] running `Command { std: "docker" "start" "-a" "4a1f212ace22f4c72e7a1dff8b73b203b06d4527fd161c6bfe11e542cf377e27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4a1f212ace22f4c72e7a1dff8b73b203b06d4527fd161c6bfe11e542cf377e27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a1f212ace22f4c72e7a1dff8b73b203b06d4527fd161c6bfe11e542cf377e27", kill_on_drop: false }`
[INFO] [stdout] 4a1f212ace22f4c72e7a1dff8b73b203b06d4527fd161c6bfe11e542cf377e27
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 3599acdae99d3209317cfda67f4c5f2d5b28704cbb9f58aa0309404949a524ba
[INFO] running `Command { std: "docker" "start" "-a" "3599acdae99d3209317cfda67f4c5f2d5b28704cbb9f58aa0309404949a524ba", kill_on_drop: false }`
[INFO] [stderr]    Compiling indexmap v1.6.0
[INFO] [stderr]    Compiling priority-queue v1.0.0
[INFO] [stderr]     Checking engine v0.1.0 (/opt/rustwide/workdir/engine)
[INFO] [stderr]  Documenting engine v0.1.0 (/opt/rustwide/workdir/engine)
[INFO] [stdout] warning: value assigned to `should_pop` is never read
[INFO] [stdout]   --> engine/src/offer.rs:25:17
[INFO] [stdout]    |
[INFO] [stdout] 25 |         let mut should_pop: bool = false;
[INFO] [stdout]    |                 ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `should_pop` is never read
[INFO] [stdout]   --> engine/src/offer.rs:27:13
[INFO] [stdout]    |
[INFO] [stdout] 27 |             should_pop = false;
[INFO] [stdout]    |             ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `should_pop` is never read
[INFO] [stdout]   --> engine/src/bid.rs:23:17
[INFO] [stdout]    |
[INFO] [stdout] 23 |         let mut should_pop: bool = false;
[INFO] [stdout]    |                 ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `should_pop` is never read
[INFO] [stdout]   --> engine/src/bid.rs:25:13
[INFO] [stdout]    |
[INFO] [stdout] 25 |             should_pop = false;
[INFO] [stdout]    |             ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.30s
[INFO] running `Command { std: "docker" "inspect" "3599acdae99d3209317cfda67f4c5f2d5b28704cbb9f58aa0309404949a524ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3599acdae99d3209317cfda67f4c5f2d5b28704cbb9f58aa0309404949a524ba", kill_on_drop: false }`
[INFO] [stdout] 3599acdae99d3209317cfda67f4c5f2d5b28704cbb9f58aa0309404949a524ba
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] a72b3f37b19dd35d9068726229430986a95b3b701592037fe8542a77ff0ee08e
[INFO] running `Command { std: "docker" "start" "-a" "a72b3f37b19dd35d9068726229430986a95b3b701592037fe8542a77ff0ee08e", kill_on_drop: false }`
[INFO] [stderr] error: manifest path `/opt/rustwide/workdir/Cargo.toml` is a virtual manifest, but this command requires running against an actual package in this workspace
[INFO] running `Command { std: "docker" "inspect" "a72b3f37b19dd35d9068726229430986a95b3b701592037fe8542a77ff0ee08e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a72b3f37b19dd35d9068726229430986a95b3b701592037fe8542a77ff0ee08e", kill_on_drop: false }`
[INFO] [stdout] a72b3f37b19dd35d9068726229430986a95b3b701592037fe8542a77ff0ee08e