[INFO] cloning repository https://github.com/Gnarus-G/n_choose_k
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Gnarus-G/n_choose_k" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGnarus-G%2Fn_choose_k", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGnarus-G%2Fn_choose_k'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e2f77287fc7c6682d8da7461180eaa457e512a57
[INFO] documenting Gnarus-G/n_choose_k against 1.61.0 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGnarus-G%2Fn_choose_k" "/workspace/builds/worker-17/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-17/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Gnarus-G/n_choose_k on toolchain 1.61.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Gnarus-G/n_choose_k
[INFO] finished tweaking git repo https://github.com/Gnarus-G/n_choose_k
[INFO] tweaked toml for git repo https://github.com/Gnarus-G/n_choose_k written to /workspace/builds/worker-17/source/Cargo.toml
[INFO] crate git repo https://github.com/Gnarus-G/n_choose_k already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: /workspace/builds/worker-17/source/crates/nck/Cargo.toml: file found to be present in multiple build targets: /workspace/builds/worker-17/source/crates/nck/src/main.rs
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded num v0.4.0
[INFO] [stderr]   Downloaded clap v3.1.9
[INFO] [stderr]   Downloaded clap_lex v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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" "+1.61.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9b095100b80e30938da47c14cf7536290cd7290b5cb6848eeee7c5b3215a8d94
[INFO] running `Command { std: "docker" "start" "-a" "9b095100b80e30938da47c14cf7536290cd7290b5cb6848eeee7c5b3215a8d94", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9b095100b80e30938da47c14cf7536290cd7290b5cb6848eeee7c5b3215a8d94", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b095100b80e30938da47c14cf7536290cd7290b5cb6848eeee7c5b3215a8d94", kill_on_drop: false }`
[INFO] [stdout] 9b095100b80e30938da47c14cf7536290cd7290b5cb6848eeee7c5b3215a8d94
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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" "+1.61.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c4a8489ea3fa91932e8bb8d6d23092b0338681a3b8091a5afa1c1f8b5dd2dd67
[INFO] running `Command { std: "docker" "start" "-a" "c4a8489ea3fa91932e8bb8d6d23092b0338681a3b8091a5afa1c1f8b5dd2dd67", kill_on_drop: false }`
[INFO] [stderr] warning: /opt/rustwide/workdir/crates/nck/Cargo.toml: file found to be present in multiple build targets: /opt/rustwide/workdir/crates/nck/src/main.rs
[INFO] [stderr] warning: output filename collision.
[INFO] [stderr] The bin target `n-choose-k` in package `n_choose_k v0.1.5 (/opt/rustwide/workdir/crates/nck)` has the same output filename as the lib target `n_choose_k` in package `n_choose_k v0.1.5 (/opt/rustwide/workdir/crates/nck)`.
[INFO] [stderr] Colliding filename is: /opt/rustwide/target/doc/n_choose_k/index.html
[INFO] [stderr] The output filenames should be unique.
[INFO] [stderr] This is a known bug where multiple crates with the same name use
[INFO] [stderr] the same path; see <https://github.com/rust-lang/cargo/issues/6313>.
[INFO] [stderr] If this looks unexpected, it may be a bug in Cargo. Please file a bug report at
[INFO] [stderr] https://github.com/rust-lang/cargo/issues/ with as much information as you
[INFO] [stderr] can provide.
[INFO] [stderr] cargo 1.61.0 (a028ae4 2022-04-29) running on `x86_64-unknown-linux-gnu` target `x86_64-unknown-linux-gnu`
[INFO] [stderr] First unit: Unit { pkg: Package { id: PackageId { name: "n_choose_k", version: "0.1.5", source: "/opt/rustwide/workdir/crates/nck" }, ..: ".." }, target: TargetInner { name: "n-choose-k", doc: true, ..: with_path("/opt/rustwide/workdir/crates/nck/src/main.rs", Edition2021) }, profile: Profile { incremental: false, ..: default_dev() }, kind: Host, mode: Doc { deps: false }, features: [], artifact: false, is_std: false, dep_hash: 15954584357271636996 }
[INFO] [stderr] Second unit: Unit { pkg: Package { id: PackageId { name: "n_choose_k", version: "0.1.5", source: "/opt/rustwide/workdir/crates/nck" }, ..: ".." }, target: TargetInner { ..: lib_target("n_choose_k", ["lib"], "/opt/rustwide/workdir/crates/nck/src/lib.rs", Edition2021) }, profile: Profile { incremental: false, ..: default_dev() }, kind: Host, mode: Doc { deps: false }, features: [], artifact: false, is_std: false, dep_hash: 8985468621389312825 }
[INFO] [stderr]    Compiling proc-macro2 v1.0.37
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]    Compiling libc v0.2.123
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]     Checking os_str_bytes v6.0.0
[INFO] [stderr]     Checking termcolor v1.1.3
[INFO] [stderr]     Checking textwrap v0.15.0
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]  Documenting memo v0.1.0 (/opt/rustwide/workdir/crates/memo)
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]    Compiling indexmap v1.8.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking clap_lex v0.1.1
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking num-complex v0.4.0
[INFO] [stderr]     Checking num v0.4.0
[INFO] [stderr]     Checking factorial v0.1.2 (/opt/rustwide/workdir/crates/factorial)
[INFO] [stderr]  Documenting factorial v0.1.2 (/opt/rustwide/workdir/crates/factorial)
[INFO] [stderr]    Compiling clap_derive v3.1.7
[INFO] [stderr]     Checking clap v3.1.9
[INFO] [stderr]     Checking n_choose_k v0.1.5 (/opt/rustwide/workdir/crates/nck)
[INFO] [stderr]  Documenting n_choose_k v0.1.5 (/opt/rustwide/workdir/crates/nck)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 37.48s
[INFO] running `Command { std: "docker" "inspect" "c4a8489ea3fa91932e8bb8d6d23092b0338681a3b8091a5afa1c1f8b5dd2dd67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c4a8489ea3fa91932e8bb8d6d23092b0338681a3b8091a5afa1c1f8b5dd2dd67", kill_on_drop: false }`
[INFO] [stdout] c4a8489ea3fa91932e8bb8d6d23092b0338681a3b8091a5afa1c1f8b5dd2dd67
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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" "+1.61.0" "rustdoc" "--lib" "-Zrustdoc-map" "--frozen" "--message-format=json" "--" "-Z" "unstable-options" "--document-private-items", kill_on_drop: false }`
[INFO] [stdout] 0c4d2642aba8916fd31874c1665e024f35e92c008c56ea7999a08a7fa963f5ef
[INFO] running `Command { std: "docker" "start" "-a" "0c4d2642aba8916fd31874c1665e024f35e92c008c56ea7999a08a7fa963f5ef", kill_on_drop: false }`
[INFO] [stderr] warning: /opt/rustwide/workdir/crates/nck/Cargo.toml: file found to be present in multiple build targets: /opt/rustwide/workdir/crates/nck/src/main.rs
[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" "0c4d2642aba8916fd31874c1665e024f35e92c008c56ea7999a08a7fa963f5ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c4d2642aba8916fd31874c1665e024f35e92c008c56ea7999a08a7fa963f5ef", kill_on_drop: false }`
[INFO] [stdout] 0c4d2642aba8916fd31874c1665e024f35e92c008c56ea7999a08a7fa963f5ef