[INFO] cloning repository https://github.com/williewillus/advent_of_code_2017
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/williewillus/advent_of_code_2017" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwilliewillus%2Fadvent_of_code_2017", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwilliewillus%2Fadvent_of_code_2017'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] be3e7bb52d75fb1e7372657045e3cd4f6858dfd7
[INFO] checking williewillus/advent_of_code_2017 against try#3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f for pr-87248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwilliewillus%2Fadvent_of_code_2017" "/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/williewillus/advent_of_code_2017 on toolchain 3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/williewillus/advent_of_code_2017
[INFO] finished tweaking git repo https://github.com/williewillus/advent_of_code_2017
[INFO] tweaked toml for git repo https://github.com/williewillus/advent_of_code_2017 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/williewillus/advent_of_code_2017 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pcre v0.2.3
[INFO] [stderr]   Downloaded pathfinding v0.6.8
[INFO] [stderr]   Downloaded xattr v0.1.11
[INFO] [stderr]   Downloaded tar v0.4.14
[INFO] [stderr]   Downloaded enum-set v0.0.7
[INFO] [stderr]   Downloaded itertools v0.7.4
[INFO] [stderr]   Downloaded bzip2 v0.3.2
[INFO] [stderr]   Downloaded bzip2-sys v0.1.6
[INFO] [stderr]   Downloaded libpcre-sys v0.2.2
[INFO] [stderr]   Downloaded regex v0.2.3
[INFO] [stderr]   Downloaded filetime v0.1.14
[INFO] [stderr]   Downloaded ordermap v0.3.2
[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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3efe69f965657c935e815232b8fb94aea9031f9920df5356ff3668ae2ff36e06
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "3efe69f965657c935e815232b8fb94aea9031f9920df5356ff3668ae2ff36e06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3efe69f965657c935e815232b8fb94aea9031f9920df5356ff3668ae2ff36e06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3efe69f965657c935e815232b8fb94aea9031f9920df5356ff3668ae2ff36e06", kill_on_drop: false }`
[INFO] [stdout] 3efe69f965657c935e815232b8fb94aea9031f9920df5356ff3668ae2ff36e06
[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" "RUSTFLAGS=--cap-lints=forbid" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 73c6135bfac36c459deb5573686bfabcf4e2fab753b7ce0c2a7e88456058c60d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "73c6135bfac36c459deb5573686bfabcf4e2fab753b7ce0c2a7e88456058c60d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.34
[INFO] [stderr]    Compiling cc v1.0.3
[INFO] [stderr]    Compiling cfg-if v0.1.2
[INFO] [stderr]    Compiling pkg-config v0.3.9
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking lazy_static v0.2.11
[INFO] [stderr]     Checking either v1.4.0
[INFO] [stderr]     Checking num-traits v0.1.41
[INFO] [stderr]     Checking fixedbitset v0.1.8
[INFO] [stderr]     Checking regex-syntax v0.4.1
[INFO] [stderr]     Checking enum-set v0.0.7
[INFO] [stderr]     Checking ordermap v0.3.2
[INFO] [stderr]     Checking utf8-ranges v1.0.0
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]     Checking itertools v0.7.4
[INFO] [stderr]     Checking thread_local v0.3.4
[INFO] [stderr]     Checking memchr v2.0.1
[INFO] [stderr]    Compiling xattr v0.1.11
[INFO] [stderr]    Compiling filetime v0.1.14
[INFO] [stderr]     Checking aho-corasick v0.6.4
[INFO] [stderr]    Compiling tar v0.4.14
[INFO] [stderr]    Compiling bzip2-sys v0.1.6
[INFO] [stderr]     Checking pathfinding v0.6.8
[INFO] [stderr]     Checking regex v0.2.3
[INFO] [stdout] error[E0034]: multiple applicable items in scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/pathfinding-0.6.8/src/connected_components.rs:106:18
[INFO] [stdout]     |
[INFO] [stdout] 106 |                 .flatten()
[INFO] [stdout]     |                  ^^^^^^^ multiple `flatten` found
[INFO] [stdout]     |
[INFO] [stdout]     = note: candidate #1 is defined in an impl of the trait `Iterator` for the type `Map<I, F>`
[INFO] [stdout]     = note: candidate #2 is defined in an impl of the trait `Itertools` for the type `T`
[INFO] [stdout] help: disambiguate the associated function for candidate #1
[INFO] [stdout]     |
[INFO] [stdout] 104 |             Iterator::flatten(gs.into_iter()
[INFO] [stdout] 105 |                 .map(|(i, _)| groups[i].clone()))
[INFO] [stdout]     |
[INFO] [stdout] help: disambiguate the associated function for candidate #2
[INFO] [stdout]     |
[INFO] [stdout] 104 |             Itertools::flatten(gs.into_iter()
[INFO] [stdout] 105 |                 .map(|(i, _)| groups[i].clone()))
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0034`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `pathfinding` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "73c6135bfac36c459deb5573686bfabcf4e2fab753b7ce0c2a7e88456058c60d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "73c6135bfac36c459deb5573686bfabcf4e2fab753b7ce0c2a7e88456058c60d", kill_on_drop: false }`
[INFO] [stdout] 73c6135bfac36c459deb5573686bfabcf4e2fab753b7ce0c2a7e88456058c60d