[INFO] cloning repository https://github.com/kmamykin/adventofcode2020
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kmamykin/adventofcode2020" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkmamykin%2Fadventofcode2020", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkmamykin%2Fadventofcode2020'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 39749a228afef6432483f95f6495b1c90b748cc3
[INFO] documenting kmamykin/adventofcode2020 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%2Fkmamykin%2Fadventofcode2020" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kmamykin/adventofcode2020 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/kmamykin/adventofcode2020
[INFO] finished tweaking git repo https://github.com/kmamykin/adventofcode2020
[INFO] tweaked toml for git repo https://github.com/kmamykin/adventofcode2020 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/kmamykin/adventofcode2020 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]  Downloading crates ...
[INFO] [stderr]   Downloaded matrixmultiply v0.3.1
[INFO] [stderr]   Downloaded graphlib v0.6.2
[INFO] [stderr]   Downloaded ahash v0.2.19
[INFO] [stderr]   Downloaded simba v0.4.0
[INFO] [stderr]   Downloaded nalgebra v0.26.2
[INFO] [stderr]   Downloaded rand_isaac v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] ce96ca5b9b8044823277aee54b452401f9179fb545e9636d812e652237209192
[INFO] running `Command { std: "docker" "start" "-a" "ce96ca5b9b8044823277aee54b452401f9179fb545e9636d812e652237209192", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ce96ca5b9b8044823277aee54b452401f9179fb545e9636d812e652237209192", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce96ca5b9b8044823277aee54b452401f9179fb545e9636d812e652237209192", kill_on_drop: false }`
[INFO] [stdout] ce96ca5b9b8044823277aee54b452401f9179fb545e9636d812e652237209192
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 89c49a3c518ef2a19c8f8abd1affd1fc7964f8f26e3d9490f4ffe468e8c8728a
[INFO] running `Command { std: "docker" "start" "-a" "89c49a3c518ef2a19c8f8abd1affd1fc7964f8f26e3d9490f4ffe468e8c8728a", kill_on_drop: false }`
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking ahash v0.2.19
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking matrixmultiply v0.3.1
[INFO] [stderr]     Checking regex v1.4.5
[INFO] [stderr]     Checking rand_isaac v0.2.0
[INFO] [stderr]     Checking itertools v0.10.0
[INFO] [stderr]    Compiling hashbrown v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking num-complex v0.3.1
[INFO] [stderr]     Checking approx v0.4.0
[INFO] [stderr]     Checking graphlib v0.6.2
[INFO] [stderr]     Checking num-rational v0.3.2
[INFO] [stderr]     Checking simba v0.4.0
[INFO] [stderr]     Checking nalgebra v0.26.2
[INFO] [stderr]  Documenting adventofcode2020 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 50.67s
[INFO] running `Command { std: "docker" "inspect" "89c49a3c518ef2a19c8f8abd1affd1fc7964f8f26e3d9490f4ffe468e8c8728a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "89c49a3c518ef2a19c8f8abd1affd1fc7964f8f26e3d9490f4ffe468e8c8728a", kill_on_drop: false }`
[INFO] [stdout] 89c49a3c518ef2a19c8f8abd1affd1fc7964f8f26e3d9490f4ffe468e8c8728a