[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] testing williewillus/advent_of_code_2017 against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwilliewillus%2Fadvent_of_code_2017" "/workspace/builds/worker-78/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-78/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/williewillus/advent_of_code_2017 on toolchain 62efba8a050c64249dab942951bb28f710208bc8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "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-78/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" "+62efba8a050c64249dab942951bb28f710208bc8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded xattr v0.1.11
[INFO] [stderr]   Downloaded bzip2 v0.3.2
[INFO] [stderr]   Downloaded pcre v0.2.3
[INFO] [stderr]   Downloaded regex v0.2.3
[INFO] [stderr]   Downloaded itertools v0.7.4
[INFO] [stderr]   Downloaded libpcre-sys v0.2.2
[INFO] [stderr]   Downloaded filetime v0.1.14
[INFO] [stderr]   Downloaded enum-set v0.0.7
[INFO] [stderr]   Downloaded ordermap v0.3.2
[INFO] [stderr]   Downloaded bzip2-sys v0.1.6
[INFO] [stderr]   Downloaded tar v0.4.14
[INFO] [stderr]   Downloaded pathfinding v0.6.8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ed8ac94c27e81cb79438a745c25bbc3813209cfb741158fd14a7502e8b15d93c
[INFO] running `Command { std: "docker" "start" "-a" "ed8ac94c27e81cb79438a745c25bbc3813209cfb741158fd14a7502e8b15d93c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ed8ac94c27e81cb79438a745c25bbc3813209cfb741158fd14a7502e8b15d93c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed8ac94c27e81cb79438a745c25bbc3813209cfb741158fd14a7502e8b15d93c", kill_on_drop: false }`
[INFO] [stdout] ed8ac94c27e81cb79438a745c25bbc3813209cfb741158fd14a7502e8b15d93c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b5705f7afdda2dfecea5f51d552fe5201a855fd8e3f5b06132683fdd3aac77d9
[INFO] running `Command { std: "docker" "start" "-a" "b5705f7afdda2dfecea5f51d552fe5201a855fd8e3f5b06132683fdd3aac77d9", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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]    Compiling void v1.0.2
[INFO] [stderr]    Compiling lazy_static v0.2.11
[INFO] [stderr]    Compiling either v1.4.0
[INFO] [stderr]    Compiling utf8-ranges v1.0.0
[INFO] [stderr]    Compiling enum-set v0.0.7
[INFO] [stderr]    Compiling regex-syntax v0.4.1
[INFO] [stderr]    Compiling fixedbitset v0.1.8
[INFO] [stderr]    Compiling ordermap v0.3.2
[INFO] [stderr]    Compiling num-traits v0.1.41
[INFO] [stderr]    Compiling unreachable v1.0.0
[INFO] [stderr]    Compiling thread_local v0.3.4
[INFO] [stderr]    Compiling itertools v0.7.4
[INFO] [stderr]    Compiling filetime v0.1.14
[INFO] [stderr]    Compiling xattr v0.1.11
[INFO] [stderr]    Compiling memchr v2.0.1
[INFO] [stderr]    Compiling tar v0.4.14
[INFO] [stderr]    Compiling aho-corasick v0.6.4
[INFO] [stderr]    Compiling regex v0.2.3
[INFO] [stderr]    Compiling pathfinding v0.6.8
[INFO] [stderr]    Compiling bzip2-sys v0.1.6
[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" "b5705f7afdda2dfecea5f51d552fe5201a855fd8e3f5b06132683fdd3aac77d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b5705f7afdda2dfecea5f51d552fe5201a855fd8e3f5b06132683fdd3aac77d9", kill_on_drop: false }`
[INFO] [stdout] b5705f7afdda2dfecea5f51d552fe5201a855fd8e3f5b06132683fdd3aac77d9