Dec 19 16:25:01.968 INFO checking gpittarelli/to-and-from against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 16:25:01.968 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-5/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/gpittarelli/to-and-from:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 16:25:02.331 INFO [stdout] 328d7046ebe9281b0ecca5baa243733f65fc5138ea2e009c1713c832af7b1dfa
Dec 19 16:25:02.333 INFO running `"docker" "start" "-a" "328d7046ebe9281b0ecca5baa243733f65fc5138ea2e009c1713c832af7b1dfa"`
Dec 19 16:25:04.234 INFO [stderr]     Checking fixedbitset v0.1.8
Dec 19 16:25:04.234 INFO [stderr]     Checking serde v1.0.30
Dec 19 16:25:04.234 INFO [stderr]     Checking memchr v2.0.1
Dec 19 16:25:04.234 INFO [stderr]     Checking num-complex v0.1.43
Dec 19 16:25:04.234 INFO [stderr]     Checking combine v2.5.2
Dec 19 16:25:04.234 INFO [stderr]     Checking num-bigint v0.1.43
Dec 19 16:25:05.219 INFO [stderr]     Checking petgraph v0.4.11
Dec 19 16:25:05.550 INFO [stderr]     Checking csv-core v0.1.4
Dec 19 16:25:08.036 INFO [stderr]     Checking num-rational v0.1.42
Dec 19 16:25:08.616 INFO [stderr] error[E0034]: multiple applicable items in scope
Dec 19 16:25:08.616 INFO [stderr]     --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/petgraph-0.4.11/src/graph_impl/stable_graph/mod.rs:1173:19
Dec 19 16:25:08.616 INFO [stderr]      |
Dec 19 16:25:08.616 INFO [stderr] 1173 |         self.iter.find_map(|(i, node)| {
Dec 19 16:25:08.616 INFO [stderr]      |                   ^^^^^^^^ multiple `find_map` found
Dec 19 16:25:08.616 INFO [stderr]      |
Dec 19 16:25:08.616 INFO [stderr] note: candidate #1 is defined in an impl of the trait `iter_utils::IterUtilsExt` for the type `_`
Dec 19 16:25:08.616 INFO [stderr]     --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/petgraph-0.4.11/src/iter_utils.rs:5:5
Dec 19 16:25:08.616 INFO [stderr]      |
Dec 19 16:25:08.616 INFO [stderr] 5    | /     fn find_map<F, R>(&mut self, mut f: F) -> Option<R>
Dec 19 16:25:08.616 INFO [stderr] 6    | |         where F: FnMut(Self::Item) -> Option<R>
Dec 19 16:25:08.616 INFO [stderr] 7    | |     {
Dec 19 16:25:08.616 INFO [stderr] 8    | |         while let Some(elt) = self.next() {
Dec 19 16:25:08.616 INFO [stderr] ...    |
Dec 19 16:25:08.616 INFO [stderr] 13   | |         None
Dec 19 16:25:08.616 INFO [stderr] 14   | |     }
Dec 19 16:25:08.616 INFO [stderr]      | |_____^
Dec 19 16:25:08.616 INFO [stderr]      = note: candidate #2 is defined in an impl of the trait `std::iter::Iterator` for the type `std::iter::Enumerate<_>`
Dec 19 16:25:08.616 INFO [stderr] 
Dec 19 16:25:08.628 INFO [stderr] error[E0034]: multiple applicable items in scope
Dec 19 16:25:08.628 INFO [stderr]     --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/petgraph-0.4.11/src/graph_impl/stable_graph/mod.rs:1365:19
Dec 19 16:25:08.628 INFO [stderr]      |
Dec 19 16:25:08.628 INFO [stderr] 1365 |         self.iter.find_map(|(i, edge)|
Dec 19 16:25:08.628 INFO [stderr]      |                   ^^^^^^^^ multiple `find_map` found
Dec 19 16:25:08.628 INFO [stderr]      |
Dec 19 16:25:08.628 INFO [stderr] note: candidate #1 is defined in an impl of the trait `iter_utils::IterUtilsExt` for the type `_`
Dec 19 16:25:08.628 INFO [stderr]     --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/petgraph-0.4.11/src/iter_utils.rs:5:5
Dec 19 16:25:08.628 INFO [stderr]      |
Dec 19 16:25:08.628 INFO [stderr] 5    | /     fn find_map<F, R>(&mut self, mut f: F) -> Option<R>
Dec 19 16:25:08.628 INFO [stderr] 6    | |         where F: FnMut(Self::Item) -> Option<R>
Dec 19 16:25:08.628 INFO [stderr] 7    | |     {
Dec 19 16:25:08.628 INFO [stderr] 8    | |         while let Some(elt) = self.next() {
Dec 19 16:25:08.628 INFO [stderr] ...    |
Dec 19 16:25:08.628 INFO [stderr] 13   | |         None
Dec 19 16:25:08.628 INFO [stderr] 14   | |     }
Dec 19 16:25:08.628 INFO [stderr]      | |_____^
Dec 19 16:25:08.628 INFO [stderr]      = note: candidate #2 is defined in an impl of the trait `std::iter::Iterator` for the type `std::iter::Enumerate<_>`
Dec 19 16:25:08.628 INFO [stderr] 
Dec 19 16:25:08.636 INFO [stderr] error[E0034]: multiple applicable items in scope
Dec 19 16:25:08.636 INFO [stderr]     --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/petgraph-0.4.11/src/graph_impl/stable_graph/mod.rs:1529:19
Dec 19 16:25:08.636 INFO [stderr]      |
Dec 19 16:25:08.636 INFO [stderr] 1529 |         self.iter.find_map(|(i, node)| {
Dec 19 16:25:08.636 INFO [stderr]      |                   ^^^^^^^^ multiple `find_map` found
Dec 19 16:25:08.636 INFO [stderr]      |
Dec 19 16:25:08.636 INFO [stderr] note: candidate #1 is defined in an impl of the trait `iter_utils::IterUtilsExt` for the type `_`
Dec 19 16:25:08.636 INFO [stderr]     --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/petgraph-0.4.11/src/iter_utils.rs:5:5
Dec 19 16:25:08.636 INFO [stderr]      |
Dec 19 16:25:08.636 INFO [stderr] 5    | /     fn find_map<F, R>(&mut self, mut f: F) -> Option<R>
Dec 19 16:25:08.636 INFO [stderr] 6    | |         where F: FnMut(Self::Item) -> Option<R>
Dec 19 16:25:08.636 INFO [stderr] 7    | |     {
Dec 19 16:25:08.636 INFO [stderr] 8    | |         while let Some(elt) = self.next() {
Dec 19 16:25:08.636 INFO [stderr] ...    |
Dec 19 16:25:08.636 INFO [stderr] 13   | |         None
Dec 19 16:25:08.636 INFO [stderr] 14   | |     }
Dec 19 16:25:08.636 INFO [stderr]      | |_____^
Dec 19 16:25:08.636 INFO [stderr]      = note: candidate #2 is defined in an impl of the trait `std::iter::Iterator` for the type `std::iter::Enumerate<_>`
Dec 19 16:25:08.637 INFO [stderr] 
Dec 19 16:25:08.644 INFO [stderr] error[E0034]: multiple applicable items in scope
Dec 19 16:25:08.644 INFO [stderr]     --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/petgraph-0.4.11/src/graph_impl/stable_graph/mod.rs:1575:19
Dec 19 16:25:08.644 INFO [stderr]      |
Dec 19 16:25:08.644 INFO [stderr] 1575 |         self.iter.find_map(|(i, node)| {
Dec 19 16:25:08.644 INFO [stderr]      |                   ^^^^^^^^ multiple `find_map` found
Dec 19 16:25:08.644 INFO [stderr]      |
Dec 19 16:25:08.644 INFO [stderr] note: candidate #1 is defined in an impl of the trait `iter_utils::IterUtilsExt` for the type `_`
Dec 19 16:25:08.644 INFO [stderr]     --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/petgraph-0.4.11/src/iter_utils.rs:5:5
Dec 19 16:25:08.644 INFO [stderr]      |
Dec 19 16:25:08.644 INFO [stderr] 5    | /     fn find_map<F, R>(&mut self, mut f: F) -> Option<R>
Dec 19 16:25:08.644 INFO [stderr] 6    | |         where F: FnMut(Self::Item) -> Option<R>
Dec 19 16:25:08.644 INFO [stderr] 7    | |     {
Dec 19 16:25:08.644 INFO [stderr] 8    | |         while let Some(elt) = self.next() {
Dec 19 16:25:08.644 INFO [stderr] ...    |
Dec 19 16:25:08.644 INFO [stderr] 13   | |         None
Dec 19 16:25:08.644 INFO [stderr] 14   | |     }
Dec 19 16:25:08.644 INFO [stderr]      | |_____^
Dec 19 16:25:08.644 INFO [stderr]      = note: candidate #2 is defined in an impl of the trait `std::iter::Iterator` for the type `std::iter::Enumerate<_>`
Dec 19 16:25:08.644 INFO [stderr] 
Dec 19 16:25:08.940 INFO [stderr] error: aborting due to 4 previous errors
Dec 19 16:25:08.940 INFO [stderr] 
Dec 19 16:25:08.940 INFO [stderr] For more information about this error, try `rustc --explain E0034`.
Dec 19 16:25:08.952 INFO [stderr] error: Could not compile `petgraph`.
Dec 19 16:25:08.953 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 19 16:25:15.461 INFO [stderr] error: build failed
Dec 19 16:25:15.742 INFO running `"docker" "inspect" "328d7046ebe9281b0ecca5baa243733f65fc5138ea2e009c1713c832af7b1dfa"`
Dec 19 16:25:15.876 INFO running `"docker" "rm" "-f" "328d7046ebe9281b0ecca5baa243733f65fc5138ea2e009c1713c832af7b1dfa"`
Dec 19 16:25:15.942 INFO [stdout] 328d7046ebe9281b0ecca5baa243733f65fc5138ea2e009c1713c832af7b1dfa