[INFO] updating cached repository https://github.com/masonk/advent2017
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 9e9d9c685cceb8c482f844d15096130af6c8250d
[INFO] checking masonk/advent2017 against master#209b2be09fcaff937480d1fbbe8b31646e361c7a for pr-70917
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmasonk%2Fadvent2017" "/workspace/builds/worker-2/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/masonk/advent2017 on toolchain 209b2be09fcaff937480d1fbbe8b31646e361c7a
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/masonk/advent2017
[INFO] removed workspace from git repo https://github.com/masonk/advent2017
[INFO] finished tweaking git repo https://github.com/masonk/advent2017
[INFO] tweaked toml for git repo https://github.com/masonk/advent2017 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/masonk/advent2017 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] warning: file found to be present in multiple build targets: /workspace/builds/worker-2/source/src/6/6.1.rs
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c9415247acdf01ca444a665bc19b3623e51a256f42f0116fc372a24baa901a09
[INFO] running `"docker" "start" "-a" "c9415247acdf01ca444a665bc19b3623e51a256f42f0116fc372a24baa901a09"`
[INFO] [stderr] warning: file found to be present in multiple build targets: /opt/rustwide/workdir/src/6/6.1.rs
[INFO] [stderr]    Compiling either v1.4.0
[INFO] [stderr]    Compiling fixedbitset v0.1.8
[INFO] [stderr]    Compiling strsim v0.6.0
[INFO] [stderr]    Compiling lalrpop-intern v0.13.1
[INFO] [stderr]    Compiling ena v0.5.0
[INFO] [stderr]    Compiling lalrpop-util v0.13.1
[INFO] [stderr]    Compiling memchr v2.0.1
[INFO] [stderr]     Checking itertools v0.7.6
[INFO] [stderr]     Checking regex v0.2.5
[INFO] [stderr]    Compiling atty v0.1.2
[INFO] [stderr]    Compiling itertools v0.5.10
[INFO] [stderr]    Compiling aho-corasick v0.6.4
[INFO] [stderr]    Compiling petgraph v0.4.11
[INFO] [stderr] error[E0034]: multiple applicable items in scope
[INFO] [stderr]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/petgraph-0.4.11/src/graph_impl/stable_graph/mod.rs:1173:19
[INFO] [stderr]      |
[INFO] [stderr] 1173 |         self.iter.find_map(|(i, node)| {
[INFO] [stderr]      |                   ^^^^^^^^ multiple `find_map` found
[INFO] [stderr]      |
[INFO] [stderr] note: candidate #1 is defined in an impl of the trait `iter_utils::IterUtilsExt` for the type `_`
[INFO] [stderr]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/petgraph-0.4.11/src/iter_utils.rs:5:5
[INFO] [stderr]      |
[INFO] [stderr] 5    | /     fn find_map<F, R>(&mut self, mut f: F) -> Option<R>
[INFO] [stderr] 6    | |         where F: FnMut(Self::Item) -> Option<R>
[INFO] [stderr] 7    | |     {
[INFO] [stderr] 8    | |         while let Some(elt) = self.next() {
[INFO] [stderr] ...    |
[INFO] [stderr] 13   | |         None
[INFO] [stderr] 14   | |     }
[INFO] [stderr]      | |_____^
[INFO] [stderr]      = note: candidate #2 is defined in an impl of the trait `std::iter::Iterator` for the type `std::iter::Enumerate<_>`
[INFO] [stderr] help: disambiguate the method call for candidate #1
[INFO] [stderr]      |
[INFO] [stderr] 1173 |         iter_utils::IterUtilsExt::find_map(&mut self.iter, |(i, node)| {
[INFO] [stderr] 1174 |             node.weight.as_ref().map(move |w| (node_index(i), w))
[INFO] [stderr] 1175 |         })
[INFO] [stderr]      |
[INFO] [stderr] help: disambiguate the method call for candidate #2
[INFO] [stderr]      |
[INFO] [stderr] 1173 |         std::iter::Iterator::find_map(&mut self.iter, |(i, node)| {
[INFO] [stderr] 1174 |             node.weight.as_ref().map(move |w| (node_index(i), w))
[INFO] [stderr] 1175 |         })
[INFO] [stderr]      |
[INFO] [stderr] 
[INFO] [stderr] error[E0034]: multiple applicable items in scope
[INFO] [stderr]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/petgraph-0.4.11/src/graph_impl/stable_graph/mod.rs:1365:19
[INFO] [stderr]      |
[INFO] [stderr] 1365 |         self.iter.find_map(|(i, edge)|
[INFO] [stderr]      |                   ^^^^^^^^ multiple `find_map` found
[INFO] [stderr]      |
[INFO] [stderr] note: candidate #1 is defined in an impl of the trait `iter_utils::IterUtilsExt` for the type `_`
[INFO] [stderr]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/petgraph-0.4.11/src/iter_utils.rs:5:5
[INFO] [stderr]      |
[INFO] [stderr] 5    | /     fn find_map<F, R>(&mut self, mut f: F) -> Option<R>
[INFO] [stderr] 6    | |         where F: FnMut(Self::Item) -> Option<R>
[INFO] [stderr] 7    | |     {
[INFO] [stderr] 8    | |         while let Some(elt) = self.next() {
[INFO] [stderr] ...    |
[INFO] [stderr] 13   | |         None
[INFO] [stderr] 14   | |     }
[INFO] [stderr]      | |_____^
[INFO] [stderr]      = note: candidate #2 is defined in an impl of the trait `std::iter::Iterator` for the type `std::iter::Enumerate<_>`
[INFO] [stderr] help: disambiguate the method call for candidate #1
[INFO] [stderr]      |
[INFO] [stderr] 1365 |         iter_utils::IterUtilsExt::find_map(&mut self.iter, |(i, edge)|
[INFO] [stderr] 1366 |             edge.weight.as_ref().map(move |weight| {
[INFO] [stderr] 1367 |                 EdgeReference {
[INFO] [stderr] 1368 |                     index: edge_index(i),
[INFO] [stderr] 1369 |                     node: edge.node,
[INFO] [stderr] 1370 |                     weight: weight,
[INFO] [stderr]    ...
[INFO] [stderr] help: disambiguate the method call for candidate #2
[INFO] [stderr]      |
[INFO] [stderr] 1365 |         std::iter::Iterator::find_map(&mut self.iter, |(i, edge)|
[INFO] [stderr] 1366 |             edge.weight.as_ref().map(move |weight| {
[INFO] [stderr] 1367 |                 EdgeReference {
[INFO] [stderr] 1368 |                     index: edge_index(i),
[INFO] [stderr] 1369 |                     node: edge.node,
[INFO] [stderr] 1370 |                     weight: weight,
[INFO] [stderr]    ...
[INFO] [stderr] 
[INFO] [stderr] error[E0034]: multiple applicable items in scope
[INFO] [stderr]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/petgraph-0.4.11/src/graph_impl/stable_graph/mod.rs:1529:19
[INFO] [stderr]      |
[INFO] [stderr] 1529 |         self.iter.find_map(|(i, node)| {
[INFO] [stderr]      |                   ^^^^^^^^ multiple `find_map` found
[INFO] [stderr]      |
[INFO] [stderr] note: candidate #1 is defined in an impl of the trait `iter_utils::IterUtilsExt` for the type `_`
[INFO] [stderr]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/petgraph-0.4.11/src/iter_utils.rs:5:5
[INFO] [stderr]      |
[INFO] [stderr] 5    | /     fn find_map<F, R>(&mut self, mut f: F) -> Option<R>
[INFO] [stderr] 6    | |         where F: FnMut(Self::Item) -> Option<R>
[INFO] [stderr] 7    | |     {
[INFO] [stderr] 8    | |         while let Some(elt) = self.next() {
[INFO] [stderr] ...    |
[INFO] [stderr] 13   | |         None
[INFO] [stderr] 14   | |     }
[INFO] [stderr]      | |_____^
[INFO] [stderr]      = note: candidate #2 is defined in an impl of the trait `std::iter::Iterator` for the type `std::iter::Enumerate<_>`
[INFO] [stderr] help: disambiguate the method call for candidate #1
[INFO] [stderr]      |
[INFO] [stderr] 1529 |         iter_utils::IterUtilsExt::find_map(&mut self.iter, |(i, node)| {
[INFO] [stderr] 1530 |             if node.weight.is_some() {
[INFO] [stderr] 1531 |                 Some(node_index(i))
[INFO] [stderr] 1532 |             } else { None }
[INFO] [stderr] 1533 |         })
[INFO] [stderr]      |
[INFO] [stderr] help: disambiguate the method call for candidate #2
[INFO] [stderr]      |
[INFO] [stderr] 1529 |         std::iter::Iterator::find_map(&mut self.iter, |(i, node)| {
[INFO] [stderr] 1530 |             if node.weight.is_some() {
[INFO] [stderr] 1531 |                 Some(node_index(i))
[INFO] [stderr] 1532 |             } else { None }
[INFO] [stderr] 1533 |         })
[INFO] [stderr]      |
[INFO] [stderr] 
[INFO] [stderr] error[E0034]: multiple applicable items in scope
[INFO] [stderr]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/petgraph-0.4.11/src/graph_impl/stable_graph/mod.rs:1575:19
[INFO] [stderr]      |
[INFO] [stderr] 1575 |         self.iter.find_map(|(i, node)| {
[INFO] [stderr]      |                   ^^^^^^^^ multiple `find_map` found
[INFO] [stderr]      |
[INFO] [stderr] note: candidate #1 is defined in an impl of the trait `iter_utils::IterUtilsExt` for the type `_`
[INFO] [stderr]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/petgraph-0.4.11/src/iter_utils.rs:5:5
[INFO] [stderr]      |
[INFO] [stderr] 5    | /     fn find_map<F, R>(&mut self, mut f: F) -> Option<R>
[INFO] [stderr] 6    | |         where F: FnMut(Self::Item) -> Option<R>
[INFO] [stderr] 7    | |     {
[INFO] [stderr] 8    | |         while let Some(elt) = self.next() {
[INFO] [stderr] ...    |
[INFO] [stderr] 13   | |         None
[INFO] [stderr] 14   | |     }
[INFO] [stderr]      | |_____^
[INFO] [stderr]      = note: candidate #2 is defined in an impl of the trait `std::iter::Iterator` for the type `std::iter::Enumerate<_>`
[INFO] [stderr] help: disambiguate the method call for candidate #1
[INFO] [stderr]      |
[INFO] [stderr] 1575 |         iter_utils::IterUtilsExt::find_map(&mut self.iter, |(i, node)| {
[INFO] [stderr] 1576 |             if node.weight.is_some() {
[INFO] [stderr] 1577 |                 Some(edge_index(i))
[INFO] [stderr] 1578 |             } else { None }
[INFO] [stderr] 1579 |         })
[INFO] [stderr]      |
[INFO] [stderr] help: disambiguate the method call for candidate #2
[INFO] [stderr]      |
[INFO] [stderr] 1575 |         std::iter::Iterator::find_map(&mut self.iter, |(i, node)| {
[INFO] [stderr] 1576 |             if node.weight.is_some() {
[INFO] [stderr] 1577 |                 Some(edge_index(i))
[INFO] [stderr] 1578 |             } else { None }
[INFO] [stderr] 1579 |         })
[INFO] [stderr]      |
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 4 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0034`.
[INFO] [stderr] error: could not compile `petgraph`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "c9415247acdf01ca444a665bc19b3623e51a256f42f0116fc372a24baa901a09"`
[INFO] running `"docker" "rm" "-f" "c9415247acdf01ca444a665bc19b3623e51a256f42f0116fc372a24baa901a09"`
[INFO] [stdout] c9415247acdf01ca444a665bc19b3623e51a256f42f0116fc372a24baa901a09
