[INFO] cloning repository https://github.com/amir/tapl-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/amir/tapl-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Famir%2Ftapl-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Famir%2Ftapl-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e94f7dba73cef1f8a58e401d1ab84acc90def41b
[INFO] checking amir/tapl-rs against beta-2020-07-24 for pr-75494-beta
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Famir%2Ftapl-rs" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/amir/tapl-rs 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/amir/tapl-rs
[INFO] finished tweaking git repo https://github.com/amir/tapl-rs
[INFO] tweaked toml for git repo https://github.com/amir/tapl-rs written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/amir/tapl-rs 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "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] [stdout] f2b6b65d9ac1804a54e211e6fde255f60705437ff54e28f15f05204661597092
[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" "f2b6b65d9ac1804a54e211e6fde255f60705437ff54e28f15f05204661597092", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f2b6b65d9ac1804a54e211e6fde255f60705437ff54e28f15f05204661597092", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2b6b65d9ac1804a54e211e6fde255f60705437ff54e28f15f05204661597092", kill_on_drop: false }`
[INFO] [stdout] f2b6b65d9ac1804a54e211e6fde255f60705437ff54e28f15f05204661597092
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 58b317f2f7bc6e3a50d3b807a125f15a51aaa9cf8cad2bdb8459bca5693fc3ab
[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" "58b317f2f7bc6e3a50d3b807a125f15a51aaa9cf8cad2bdb8459bca5693fc3ab", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.31
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]    Compiling lazy_static v0.2.8
[INFO] [stderr]    Compiling winapi v0.2.8
[INFO] [stderr]    Compiling utf8-ranges v1.0.0
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling regex-syntax v0.4.1
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling ordermap v0.2.12
[INFO] [stderr]    Compiling fixedbitset v0.1.8
[INFO] [stderr]    Compiling term v0.4.6
[INFO] [stderr]    Compiling bit-vec v0.4.4
[INFO] [stderr]    Compiling either v1.1.0
[INFO] [stderr]    Compiling strsim v0.6.0
[INFO] [stderr]    Compiling diff v0.1.10
[INFO] [stderr]    Compiling ena v0.5.0
[INFO] [stderr]    Compiling lalrpop-intern v0.13.1
[INFO] [stderr]    Compiling lalrpop-util v0.13.1
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]    Compiling pest v1.0.0-beta.15
[INFO] [stderr]    Compiling unreachable v1.0.0
[INFO] [stderr]    Compiling itertools v0.5.10
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]    Compiling bit-set v0.4.0
[INFO] [stderr]    Compiling petgraph v0.4.8
[INFO] [stderr]    Compiling memchr v1.0.1
[INFO] [stderr]    Compiling thread_local v0.3.4
[INFO] [stderr]    Compiling ascii-canvas v1.0.0
[INFO] [stderr]    Compiling syn v0.10.8
[INFO] [stderr]    Compiling aho-corasick v0.6.3
[INFO] [stderr]     Checking nom v3.2.0
[INFO] [stderr]    Compiling atty v0.1.2
[INFO] [stderr]    Compiling regex v0.2.2
[INFO] [stdout] error[E0034]: multiple applicable items in scope
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/petgraph-0.4.8/src/graph_impl/stable_graph/mod.rs:1172:19
[INFO] [stdout]      |
[INFO] [stdout] 1172 |         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-0.4.8/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] 1172 |         iter_utils::IterUtilsExt::find_map(&mut self.iter, |(i, node)| {
[INFO] [stdout] 1173 |             node.weight.as_ref().map(move |w| (node_index(i), w))
[INFO] [stdout] 1174 |         })
[INFO] [stdout]      |
[INFO] [stdout] help: disambiguate the associated function for candidate #2
[INFO] [stdout]      |
[INFO] [stdout] 1172 |         std::iter::Iterator::find_map(&mut self.iter, |(i, node)| {
[INFO] [stdout] 1173 |             node.weight.as_ref().map(move |w| (node_index(i), w))
[INFO] [stdout] 1174 |         })
[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-0.4.8/src/graph_impl/stable_graph/mod.rs:1355:19
[INFO] [stdout]      |
[INFO] [stdout] 1355 |         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-0.4.8/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] 1355 |         iter_utils::IterUtilsExt::find_map(&mut self.iter, |(i, edge)|
[INFO] [stdout] 1356 |             edge.weight.as_ref().map(move |weight| {
[INFO] [stdout] 1357 |                 EdgeReference {
[INFO] [stdout] 1358 |                     index: edge_index(i),
[INFO] [stdout] 1359 |                     node: edge.node,
[INFO] [stdout] 1360 |                     weight: weight,
[INFO] [stdout]    ...
[INFO] [stdout] help: disambiguate the associated function for candidate #2
[INFO] [stdout]      |
[INFO] [stdout] 1355 |         std::iter::Iterator::find_map(&mut self.iter, |(i, edge)|
[INFO] [stdout] 1356 |             edge.weight.as_ref().map(move |weight| {
[INFO] [stdout] 1357 |                 EdgeReference {
[INFO] [stdout] 1358 |                     index: edge_index(i),
[INFO] [stdout] 1359 |                     node: edge.node,
[INFO] [stdout] 1360 |                     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-0.4.8/src/graph_impl/stable_graph/mod.rs:1519:19
[INFO] [stdout]      |
[INFO] [stdout] 1519 |         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-0.4.8/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] 1519 |         iter_utils::IterUtilsExt::find_map(&mut self.iter, |(i, node)| {
[INFO] [stdout] 1520 |             if node.weight.is_some() {
[INFO] [stdout] 1521 |                 Some(node_index(i))
[INFO] [stdout] 1522 |             } else { None }
[INFO] [stdout] 1523 |         })
[INFO] [stdout]      |
[INFO] [stdout] help: disambiguate the associated function for candidate #2
[INFO] [stdout]      |
[INFO] [stdout] 1519 |         std::iter::Iterator::find_map(&mut self.iter, |(i, node)| {
[INFO] [stdout] 1520 |             if node.weight.is_some() {
[INFO] [stdout] 1521 |                 Some(node_index(i))
[INFO] [stdout] 1522 |             } else { None }
[INFO] [stdout] 1523 |         })
[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-0.4.8/src/graph_impl/stable_graph/mod.rs:1565:19
[INFO] [stdout]      |
[INFO] [stdout] 1565 |         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-0.4.8/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] 1565 |         iter_utils::IterUtilsExt::find_map(&mut self.iter, |(i, node)| {
[INFO] [stdout] 1566 |             if node.weight.is_some() {
[INFO] [stdout] 1567 |                 Some(edge_index(i))
[INFO] [stdout] 1568 |             } else { None }
[INFO] [stdout] 1569 |         })
[INFO] [stdout]      |
[INFO] [stdout] help: disambiguate the associated function for candidate #2
[INFO] [stdout]      |
[INFO] [stdout] 1565 |         std::iter::Iterator::find_map(&mut self.iter, |(i, node)| {
[INFO] [stdout] 1566 |             if node.weight.is_some() {
[INFO] [stdout] 1567 |                 Some(edge_index(i))
[INFO] [stdout] 1568 |             } else { None }
[INFO] [stdout] 1569 |         })
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[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" "58b317f2f7bc6e3a50d3b807a125f15a51aaa9cf8cad2bdb8459bca5693fc3ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "58b317f2f7bc6e3a50d3b807a125f15a51aaa9cf8cad2bdb8459bca5693fc3ab", kill_on_drop: false }`
[INFO] [stdout] 58b317f2f7bc6e3a50d3b807a125f15a51aaa9cf8cad2bdb8459bca5693fc3ab
