[INFO] cloning repository https://github.com/ethanboxx/small_fun_rust_projects
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ethanboxx/small_fun_rust_projects" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fethanboxx%2Fsmall_fun_rust_projects", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fethanboxx%2Fsmall_fun_rust_projects'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 22617858a266daa8b27bddd0bfc2433f81573d8e
[INFO] documenting ethanboxx/small_fun_rust_projects 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%2Fethanboxx%2Fsmall_fun_rust_projects" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ethanboxx/small_fun_rust_projects 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/ethanboxx/small_fun_rust_projects
[INFO] finished tweaking git repo https://github.com/ethanboxx/small_fun_rust_projects
[INFO] tweaked toml for git repo https://github.com/ethanboxx/small_fun_rust_projects written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/ethanboxx/small_fun_rust_projects 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c1da5d0cb79125111c0b2ff0899bf91938d1354cbfe0fe0570ed6e8ec50b6a7d
[INFO] running `Command { std: "docker" "start" "-a" "c1da5d0cb79125111c0b2ff0899bf91938d1354cbfe0fe0570ed6e8ec50b6a7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c1da5d0cb79125111c0b2ff0899bf91938d1354cbfe0fe0570ed6e8ec50b6a7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1da5d0cb79125111c0b2ff0899bf91938d1354cbfe0fe0570ed6e8ec50b6a7d", kill_on_drop: false }`
[INFO] [stdout] c1da5d0cb79125111c0b2ff0899bf91938d1354cbfe0fe0570ed6e8ec50b6a7d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 50a765eddd6515a6ad2a2e80e19b0e4921cb6bf9822b2518c8781d58ea90e182
[INFO] running `Command { std: "docker" "start" "-a" "50a765eddd6515a6ad2a2e80e19b0e4921cb6bf9822b2518c8781d58ea90e182", kill_on_drop: false }`
[INFO] [stderr]     Checking cfg-if v0.1.5
[INFO] [stderr]     Checking libc v0.2.43
[INFO] [stderr]     Checking memoffset v0.2.1
[INFO] [stderr]     Checking rand_core v0.3.0
[INFO] [stderr]  Documenting fizzbuzz v0.1.0 (/opt/rustwide/workdir/fizzbuzz)
[INFO] [stderr]  Documenting fibonacci v0.1.0 (/opt/rustwide/workdir/fibonacci)
[INFO] [stderr]  Documenting staircase v0.1.0 (/opt/rustwide/workdir/staircase)
[INFO] [stderr]  Documenting binlist v0.1.0 (/opt/rustwide/workdir/binlist)
[INFO] [stderr]  Documenting nvec v0.1.0 (/opt/rustwide/workdir/nvec)
[INFO] [stderr]    Compiling lazy_static v1.1.0
[INFO] [stderr]     Checking crossbeam-utils v0.2.2
[INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stdout]  --> binlist/src/main.rs:2:16
[INFO] [stdout]   |
[INFO] [stdout] 2 |     for bin in (0..) {
[INFO] [stdout]   |                ^   ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]   |
[INFO] [stdout] 2 -     for bin in (0..) {
[INFO] [stdout] 2 +     for bin in 0.. {
[INFO] [stdout]   | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking rand_core v0.2.2
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking crossbeam-epoch v0.3.1
[INFO] [stderr]     Checking num_cpus v1.8.0
[INFO] [stderr]     Checking rand v0.5.5
[INFO] [stderr]     Checking crossbeam-deque v0.2.0
[INFO] [stderr]     Checking rayon-core v1.4.1
[INFO] [stderr]     Checking rayon v1.0.2
[INFO] [stderr]  Documenting bubble_sort v0.1.0 (/opt/rustwide/workdir/bubble_sort)
[INFO] [stderr]  Documenting primes v0.1.0 (/opt/rustwide/workdir/primes)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.48s
[INFO] running `Command { std: "docker" "inspect" "50a765eddd6515a6ad2a2e80e19b0e4921cb6bf9822b2518c8781d58ea90e182", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "50a765eddd6515a6ad2a2e80e19b0e4921cb6bf9822b2518c8781d58ea90e182", kill_on_drop: false }`
[INFO] [stdout] 50a765eddd6515a6ad2a2e80e19b0e4921cb6bf9822b2518c8781d58ea90e182
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "DOCS_RS=1" "-e" "RUSTC_BOOTSTRAP=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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f845f1706cb78d50a4a9e439b5244989a4122909705fbbb9752a02989f50db39
[INFO] running `Command { std: "docker" "start" "-a" "f845f1706cb78d50a4a9e439b5244989a4122909705fbbb9752a02989f50db39", 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" "f845f1706cb78d50a4a9e439b5244989a4122909705fbbb9752a02989f50db39", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f845f1706cb78d50a4a9e439b5244989a4122909705fbbb9752a02989f50db39", kill_on_drop: false }`
[INFO] [stdout] f845f1706cb78d50a4a9e439b5244989a4122909705fbbb9752a02989f50db39