[INFO] updating cached repository https://github.com/t184256/irwir
[INFO] running `Command { std: "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", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a99ffe2d871a3c013c6e37bb8efeefe3f6af96f1
[INFO] testing t184256/irwir against beta-2020-07-24 for beta-1.46-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ft184256%2Firwir" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/t184256/irwir on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/t184256/irwir
[INFO] finished tweaking git repo https://github.com/t184256/irwir
[INFO] tweaked toml for git repo https://github.com/t184256/irwir written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/t184256/irwir already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 1a62c38b0ab678ca1c8efdc0bfdaa03ae4ce122359fa8e3c92469b1e25ab89a3
[INFO] running `Command { std: "docker" "start" "-a" "1a62c38b0ab678ca1c8efdc0bfdaa03ae4ce122359fa8e3c92469b1e25ab89a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1a62c38b0ab678ca1c8efdc0bfdaa03ae4ce122359fa8e3c92469b1e25ab89a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a62c38b0ab678ca1c8efdc0bfdaa03ae4ce122359fa8e3c92469b1e25ab89a3", kill_on_drop: false }`
[INFO] [stdout] 1a62c38b0ab678ca1c8efdc0bfdaa03ae4ce122359fa8e3c92469b1e25ab89a3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=warn" "-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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 32b6c9ecb350641c4c14e4fd1b9adb51c9bebf1ced662eccbeb3e655cca9718c
[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" "32b6c9ecb350641c4c14e4fd1b9adb51c9bebf1ced662eccbeb3e655cca9718c", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.70
[INFO] [stderr]    Compiling ena v0.5.0
[INFO] [stderr]    Compiling lalrpop-util v0.15.2
[INFO] [stderr]    Compiling typed-arena v1.4.1
[INFO] [stderr]    Compiling collect-mac v0.1.0
[INFO] [stderr]    Compiling rpds v0.5.0
[INFO] [stderr]    Compiling proc-macro-hack-impl v0.4.0
[INFO] [stderr]    Compiling union-find v0.3.2
[INFO] [stderr]    Compiling gluon_vm v0.8.1 (https://github.com/Marwes/gluon?branch=issue_591#4a36d825)
[INFO] [stderr]    Compiling unindent v0.1.3
[INFO] [stderr]    Compiling gluon v0.8.1 (https://github.com/Marwes/gluon?branch=issue_591#4a36d825)
[INFO] [stderr]    Compiling frunk_core v0.2.0
[INFO] [stderr]    Compiling ref_slice v1.1.1
[INFO] [stderr]    Compiling phf_shared v0.7.22
[INFO] [stderr]    Compiling itertools v0.7.8
[INFO] [stderr]    Compiling tokio-executor v0.1.2
[INFO] [stderr]    Compiling unreachable v0.1.1
[INFO] [stderr]    Compiling backtrace-sys v0.1.23
[INFO] [stderr]    Compiling petgraph v0.4.12
[INFO] [stderr]    Compiling bit-set v0.4.0
[INFO] [stderr]    Compiling quote v0.6.3
[INFO] [stderr]    Compiling thread_local v0.3.5
[INFO] [stderr]    Compiling new_debug_unreachable v1.0.1
[INFO] [stderr]    Compiling smallvec v0.6.3
[INFO] [stderr]    Compiling mio v0.6.15
[INFO] [stderr]    Compiling pretty v0.5.2
[INFO] [stderr]    Compiling phf_generator v0.7.22
[INFO] [stderr]    Compiling crossbeam-epoch v0.4.3
[INFO] [stderr]    Compiling tokio-io v0.1.7
[INFO] [stderr]    Compiling nix v0.10.0
[INFO] [stderr]    Compiling tokio-timer v0.2.4
[INFO] [stderr]    Compiling syn v0.14.4
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling regex v1.0.2
[INFO] [stderr]    Compiling string_cache_codegen v0.4.1
[INFO] [stderr]    Compiling atty v0.1.2
[INFO] [stderr]    Compiling digest v0.7.5
[INFO] [stderr]    Compiling ordered-float v0.5.0
[INFO] [stdout] error[E0034]: multiple applicable items in scope
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/petgraph-0.4.12/src/graph_impl/stable_graph/mod.rs:1171:19
[INFO] [stdout]      |
[INFO] [stdout] 1171 |         self.iter.find_map(|(i, node)| {
[INFO] [stdout]      |                   ^^^^^^^^ multiple `find_map` found
[INFO] [stdout]      |
[INFO] [stdout] note: candidate #1 is defined in an impl of the trait `iter_utils::IterUtilsExt` for the type `I`
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/petgraph-0.4.12/src/iter_utils.rs:5:5
[INFO] [stdout]      |
[INFO] [stdout] 5    | /     fn find_map<F, R>(&mut self, mut f: F) -> Option<R>
[INFO] [stdout] 6    | |         where F: FnMut(Self::Item) -> Option<R>
[INFO] [stdout] 7    | |     {
[INFO] [stdout] 8    | |         while let Some(elt) = self.next() {
[INFO] [stdout] ...    |
[INFO] [stdout] 13   | |         None
[INFO] [stdout] 14   | |     }
[INFO] [stdout]      | |_____^
[INFO] [stdout]      = note: candidate #2 is defined in an impl of the trait `std::iter::Iterator` for the type `std::iter::Enumerate<I>`
[INFO] [stdout] help: disambiguate the associated function for candidate #1
[INFO] [stdout]      |
[INFO] [stdout] 1171 |         iter_utils::IterUtilsExt::find_map(&mut self.iter, |(i, node)| {
[INFO] [stdout] 1172 |             node.weight.as_ref().map(move |w| (node_index(i), w))
[INFO] [stdout] 1173 |         })
[INFO] [stdout]      |
[INFO] [stdout] help: disambiguate the associated function for candidate #2
[INFO] [stdout]      |
[INFO] [stdout] 1171 |         std::iter::Iterator::find_map(&mut self.iter, |(i, node)| {
[INFO] [stdout] 1172 |             node.weight.as_ref().map(move |w| (node_index(i), w))
[INFO] [stdout] 1173 |         })
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0034]: multiple applicable items in scope
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/petgraph-0.4.12/src/graph_impl/stable_graph/mod.rs:1363:19
[INFO] [stdout]      |
[INFO] [stdout] 1363 |         self.iter.find_map(|(i, edge)|
[INFO] [stdout]      |                   ^^^^^^^^ multiple `find_map` found
[INFO] [stdout]      |
[INFO] [stdout] note: candidate #1 is defined in an impl of the trait `iter_utils::IterUtilsExt` for the type `I`
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/petgraph-0.4.12/src/iter_utils.rs:5:5
[INFO] [stdout]      |
[INFO] [stdout] 5    | /     fn find_map<F, R>(&mut self, mut f: F) -> Option<R>
[INFO] [stdout] 6    | |         where F: FnMut(Self::Item) -> Option<R>
[INFO] [stdout] 7    | |     {
[INFO] [stdout] 8    | |         while let Some(elt) = self.next() {
[INFO] [stdout] ...    |
[INFO] [stdout] 13   | |         None
[INFO] [stdout] 14   | |     }
[INFO] [stdout]      | |_____^
[INFO] [stdout]      = note: candidate #2 is defined in an impl of the trait `std::iter::Iterator` for the type `std::iter::Enumerate<I>`
[INFO] [stdout] help: disambiguate the associated function for candidate #1
[INFO] [stdout]      |
[INFO] [stdout] 1363 |         iter_utils::IterUtilsExt::find_map(&mut self.iter, |(i, edge)|
[INFO] [stdout] 1364 |             edge.weight.as_ref().map(move |weight| {
[INFO] [stdout] 1365 |                 EdgeReference {
[INFO] [stdout] 1366 |                     index: edge_index(i),
[INFO] [stdout] 1367 |                     node: edge.node,
[INFO] [stdout] 1368 |                     weight: weight,
[INFO] [stdout]    ...
[INFO] [stdout] help: disambiguate the associated function for candidate #2
[INFO] [stdout]      |
[INFO] [stdout] 1363 |         std::iter::Iterator::find_map(&mut self.iter, |(i, edge)|
[INFO] [stdout] 1364 |             edge.weight.as_ref().map(move |weight| {
[INFO] [stdout] 1365 |                 EdgeReference {
[INFO] [stdout] 1366 |                     index: edge_index(i),
[INFO] [stdout] 1367 |                     node: edge.node,
[INFO] [stdout] 1368 |                     weight: weight,
[INFO] [stdout]    ...
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0034]: multiple applicable items in scope
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/petgraph-0.4.12/src/graph_impl/stable_graph/mod.rs:1527:19
[INFO] [stdout]      |
[INFO] [stdout] 1527 |         self.iter.find_map(|(i, node)| {
[INFO] [stdout]      |                   ^^^^^^^^ multiple `find_map` found
[INFO] [stdout]      |
[INFO] [stdout] note: candidate #1 is defined in an impl of the trait `iter_utils::IterUtilsExt` for the type `I`
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/petgraph-0.4.12/src/iter_utils.rs:5:5
[INFO] [stdout]      |
[INFO] [stdout] 5    | /     fn find_map<F, R>(&mut self, mut f: F) -> Option<R>
[INFO] [stdout] 6    | |         where F: FnMut(Self::Item) -> Option<R>
[INFO] [stdout] 7    | |     {
[INFO] [stdout] 8    | |         while let Some(elt) = self.next() {
[INFO] [stdout] ...    |
[INFO] [stdout] 13   | |         None
[INFO] [stdout] 14   | |     }
[INFO] [stdout]      | |_____^
[INFO] [stdout]      = note: candidate #2 is defined in an impl of the trait `std::iter::Iterator` for the type `std::iter::Enumerate<I>`
[INFO] [stdout] help: disambiguate the associated function for candidate #1
[INFO] [stdout]      |
[INFO] [stdout] 1527 |         iter_utils::IterUtilsExt::find_map(&mut self.iter, |(i, node)| {
[INFO] [stdout] 1528 |             if node.weight.is_some() {
[INFO] [stdout] 1529 |                 Some(node_index(i))
[INFO] [stdout] 1530 |             } else { None }
[INFO] [stdout] 1531 |         })
[INFO] [stdout]      |
[INFO] [stdout] help: disambiguate the associated function for candidate #2
[INFO] [stdout]      |
[INFO] [stdout] 1527 |         std::iter::Iterator::find_map(&mut self.iter, |(i, node)| {
[INFO] [stdout] 1528 |             if node.weight.is_some() {
[INFO] [stdout] 1529 |                 Some(node_index(i))
[INFO] [stdout] 1530 |             } else { None }
[INFO] [stdout] 1531 |         })
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0034]: multiple applicable items in scope
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/petgraph-0.4.12/src/graph_impl/stable_graph/mod.rs:1573:19
[INFO] [stdout]      |
[INFO] [stdout] 1573 |         self.iter.find_map(|(i, node)| {
[INFO] [stdout]      |                   ^^^^^^^^ multiple `find_map` found
[INFO] [stdout]      |
[INFO] [stdout] note: candidate #1 is defined in an impl of the trait `iter_utils::IterUtilsExt` for the type `I`
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/petgraph-0.4.12/src/iter_utils.rs:5:5
[INFO] [stdout]      |
[INFO] [stdout] 5    | /     fn find_map<F, R>(&mut self, mut f: F) -> Option<R>
[INFO] [stdout] 6    | |         where F: FnMut(Self::Item) -> Option<R>
[INFO] [stdout] 7    | |     {
[INFO] [stdout] 8    | |         while let Some(elt) = self.next() {
[INFO] [stdout] ...    |
[INFO] [stdout] 13   | |         None
[INFO] [stdout] 14   | |     }
[INFO] [stdout]      | |_____^
[INFO] [stdout]      = note: candidate #2 is defined in an impl of the trait `std::iter::Iterator` for the type `std::iter::Enumerate<I>`
[INFO] [stdout] help: disambiguate the associated function for candidate #1
[INFO] [stdout]      |
[INFO] [stdout] 1573 |         iter_utils::IterUtilsExt::find_map(&mut self.iter, |(i, node)| {
[INFO] [stdout] 1574 |             if node.weight.is_some() {
[INFO] [stdout] 1575 |                 Some(edge_index(i))
[INFO] [stdout] 1576 |             } else { None }
[INFO] [stdout] 1577 |         })
[INFO] [stdout]      |
[INFO] [stdout] help: disambiguate the associated function for candidate #2
[INFO] [stdout]      |
[INFO] [stdout] 1573 |         std::iter::Iterator::find_map(&mut self.iter, |(i, node)| {
[INFO] [stdout] 1574 |             if node.weight.is_some() {
[INFO] [stdout] 1575 |                 Some(edge_index(i))
[INFO] [stdout] 1576 |             } else { None }
[INFO] [stdout] 1577 |         })
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling crossbeam-deque v0.3.1
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0034`.
[INFO] [stdout] 
[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 `Command { std: "docker" "inspect" "32b6c9ecb350641c4c14e4fd1b9adb51c9bebf1ced662eccbeb3e655cca9718c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32b6c9ecb350641c4c14e4fd1b9adb51c9bebf1ced662eccbeb3e655cca9718c", kill_on_drop: false }`
[INFO] [stdout] 32b6c9ecb350641c4c14e4fd1b9adb51c9bebf1ced662eccbeb3e655cca9718c