[INFO] cloning repository https://github.com/mindm/CaveRL
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mindm/CaveRL" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmindm%2FCaveRL", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmindm%2FCaveRL'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d3d03ea93b87827ba9a0f273860b65ef7c610510
[INFO] checking mindm/CaveRL against master#8007b506ac5da629f223b755f5a5391edd5f6d01 for pr-88041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmindm%2FCaveRL" "/workspace/builds/worker-97/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-97/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mindm/CaveRL on toolchain 8007b506ac5da629f223b755f5a5391edd5f6d01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mindm/CaveRL
[INFO] finished tweaking git repo https://github.com/mindm/CaveRL
[INFO] tweaked toml for git repo https://github.com/mindm/CaveRL written to /workspace/builds/worker-97/source/Cargo.toml
[INFO] crate git repo https://github.com/mindm/CaveRL already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "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 itertools v0.7.6
[INFO] [stderr]   Downloaded derive-new v0.5.0
[INFO] [stderr]   Downloaded tcod v0.12.1
[INFO] [stderr]   Downloaded tcod-sys v4.1.0
[INFO] [stderr]   Downloaded recs v2.0.1
[INFO] [stderr]   Downloaded pathfinding v0.6.8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/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" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f9ebcd03cf13c98d7d014d4e20b2ca301e5954f1304b1c19e5448b191a72cb71
[INFO] running `Command { std: "docker" "start" "-a" "f9ebcd03cf13c98d7d014d4e20b2ca301e5954f1304b1c19e5448b191a72cb71", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f9ebcd03cf13c98d7d014d4e20b2ca301e5954f1304b1c19e5448b191a72cb71", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9ebcd03cf13c98d7d014d4e20b2ca301e5954f1304b1c19e5448b191a72cb71", kill_on_drop: false }`
[INFO] [stdout] f9ebcd03cf13c98d7d014d4e20b2ca301e5954f1304b1c19e5448b191a72cb71
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-97/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" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f39db289a750e234e1bbc4f1280acefc2e850f90ee186ff97c207fec5225b91f
[INFO] running `Command { std: "docker" "start" "-a" "f39db289a750e234e1bbc4f1280acefc2e850f90ee186ff97c207fec5225b91f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling gcc v0.3.54
[INFO] [stderr]     Checking num-traits v0.1.42
[INFO] [stderr]     Checking either v1.4.0
[INFO] [stderr]     Checking lazy_static v0.1.16
[INFO] [stderr]     Checking itoa v0.3.4
[INFO] [stderr]     Checking bitflags v0.1.1
[INFO] [stderr]     Checking dtoa v0.4.2
[INFO] [stderr]     Checking recs v2.0.1
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]     Checking rand v0.4.2
[INFO] [stderr]     Checking itertools v0.7.6
[INFO] [stderr]     Checking serde_json v1.0.9
[INFO] [stderr]     Checking pathfinding v0.6.8
[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" "f39db289a750e234e1bbc4f1280acefc2e850f90ee186ff97c207fec5225b91f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f39db289a750e234e1bbc4f1280acefc2e850f90ee186ff97c207fec5225b91f", kill_on_drop: false }`
[INFO] [stdout] f39db289a750e234e1bbc4f1280acefc2e850f90ee186ff97c207fec5225b91f