[INFO] cloning repository https://github.com/Mark-Simulacrum/association-rust-history
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Mark-Simulacrum/association-rust-history" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMark-Simulacrum%2Fassociation-rust-history", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMark-Simulacrum%2Fassociation-rust-history'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e77a5d0d9d207ff0eafe7489bf666bcdd31374cd
[INFO] checking Mark-Simulacrum/association-rust-history against master#4d1bd0db7f489b22c6d8aa2385937a95412c015b for pr-114682
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMark-Simulacrum%2Fassociation-rust-history" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Mark-Simulacrum/association-rust-history on toolchain 4d1bd0db7f489b22c6d8aa2385937a95412c015b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4d1bd0db7f489b22c6d8aa2385937a95412c015b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Mark-Simulacrum/association-rust-history
[INFO] finished tweaking git repo https://github.com/Mark-Simulacrum/association-rust-history
[INFO] tweaked toml for git repo https://github.com/Mark-Simulacrum/association-rust-history written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Mark-Simulacrum/association-rust-history already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4d1bd0db7f489b22c6d8aa2385937a95412c015b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[ERROR] this task or one of its parent failed!
[ERROR] no output for 300 seconds
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] checking Mark-Simulacrum/association-rust-history against try#785364c7e5e0804473a3fddfb579798ea14e3493 for pr-114682
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMark-Simulacrum%2Fassociation-rust-history" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Mark-Simulacrum/association-rust-history on toolchain 785364c7e5e0804473a3fddfb579798ea14e3493
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+785364c7e5e0804473a3fddfb579798ea14e3493" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Mark-Simulacrum/association-rust-history
[INFO] finished tweaking git repo https://github.com/Mark-Simulacrum/association-rust-history
[INFO] tweaked toml for git repo https://github.com/Mark-Simulacrum/association-rust-history written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Mark-Simulacrum/association-rust-history already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+785364c7e5e0804473a3fddfb579798ea14e3493" "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
[ERROR] error running command: no output for 300 seconds
[INFO] checking Mark-Simulacrum/association-rust-history against try#785364c7e5e0804473a3fddfb579798ea14e3493 for pr-114682
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMark-Simulacrum%2Fassociation-rust-history" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Mark-Simulacrum/association-rust-history on toolchain 785364c7e5e0804473a3fddfb579798ea14e3493
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+785364c7e5e0804473a3fddfb579798ea14e3493" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Mark-Simulacrum/association-rust-history
[INFO] finished tweaking git repo https://github.com/Mark-Simulacrum/association-rust-history
[INFO] tweaked toml for git repo https://github.com/Mark-Simulacrum/association-rust-history written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Mark-Simulacrum/association-rust-history already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+785364c7e5e0804473a3fddfb579798ea14e3493" "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 serde_derive v1.0.33
[INFO] [stderr]   Downloaded serde v1.0.33
[INFO] [stderr]   Downloaded serde_derive_internals v0.21.0
[INFO] [stderr]   Downloaded openssl-sys v0.9.27
[INFO] [stderr]   Downloaded cmake v0.1.29
[INFO] [stderr]   Downloaded fixedbitset v0.1.8
[INFO] [stderr]   Downloaded bincode v1.0.0
[INFO] [stderr]   Downloaded rustc-demangle v0.1.7
[INFO] [stderr]   Downloaded termcolor v0.3.5
[INFO] [stderr]   Downloaded env_logger v0.5.6
[INFO] [stderr]   Downloaded backtrace v0.3.5
[INFO] [stderr]   Downloaded cc v1.0.9
[INFO] [stderr]   Downloaded petgraph v0.4.11
[INFO] [stderr]   Downloaded regex v0.2.10
[INFO] [stderr]   Downloaded chrono v0.4.0
[INFO] [stderr]   Downloaded curl-sys v0.4.1
[INFO] [stderr]   Downloaded syn v0.12.14
[INFO] [stderr]   Downloaded git2 v0.7.0
[INFO] [stderr]   Downloaded regex-syntax v0.5.3
[INFO] [stderr]   Downloaded libc v0.2.39
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+785364c7e5e0804473a3fddfb579798ea14e3493" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cc8bddde224773d86dcafdde0f6e2c59da09b73042ad2c61d904907d53aff541
[INFO] running `Command { std: "docker" "start" "-a" "cc8bddde224773d86dcafdde0f6e2c59da09b73042ad2c61d904907d53aff541", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cc8bddde224773d86dcafdde0f6e2c59da09b73042ad2c61d904907d53aff541", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc8bddde224773d86dcafdde0f6e2c59da09b73042ad2c61d904907d53aff541", kill_on_drop: false }`
[INFO] [stdout] cc8bddde224773d86dcafdde0f6e2c59da09b73042ad2c61d904907d53aff541
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+785364c7e5e0804473a3fddfb579798ea14e3493" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 96017cbb6aa07901707aa208f90d36bf343cc0861e252d5af1b526319c9406ca
[INFO] running `Command { std: "docker" "start" "-a" "96017cbb6aa07901707aa208f90d36bf343cc0861e252d5af1b526319c9406ca", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.9
[INFO] [stderr]     Checking libc v0.2.39
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking num-traits v0.2.2
[INFO] [stderr]     Checking cfg-if v0.1.2
[INFO] [stderr]     Checking ucd-util v0.1.1
[INFO] [stderr]    Compiling regex v0.2.10
[INFO] [stderr]     Checking lazy_static v1.0.0
[INFO] [stderr]     Checking rustc-demangle v0.1.7
[INFO] [stderr]     Checking utf8-ranges v1.0.0
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]     Checking percent-encoding v1.0.1
[INFO] [stderr]     Checking serde v1.0.33
[INFO] [stderr]     Checking quick-error v1.2.1
[INFO] [stderr]     Checking openssl-probe v0.1.2
[INFO] [stderr]     Checking log v0.4.1
[INFO] [stderr]    Compiling proc-macro2 v0.2.3
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]     Checking termcolor v0.3.5
[INFO] [stderr]     Checking fixedbitset v0.1.8
[INFO] [stderr]     Checking regex-syntax v0.5.3
[INFO] [stderr]     Checking humantime v1.1.1
[INFO] [stderr]     Checking url v1.7.0
[INFO] [stderr]     Checking bitflags v1.0.1
[INFO] [stderr]     Checking ordermap v0.3.5
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]     Checking thread_local v0.3.5
[INFO] [stderr]     Checking byteorder v1.2.1
[INFO] [stderr]     Checking memchr v2.0.1
[INFO] [stderr]     Checking atty v0.2.8
[INFO] [stderr]     Checking time v0.1.39
[INFO] [stderr]    Compiling quote v0.4.2
[INFO] [stderr]     Checking petgraph v0.4.11
[INFO] [stderr]    Compiling cmake v0.1.29
[INFO] [stderr]     Checking aho-corasick v0.6.4
[INFO] [stderr]    Compiling syn v0.12.14
[INFO] [stderr]     Checking num-integer v0.1.36
[INFO] [stdout] error[E0713]: borrow may still be in use when destructor runs
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/url-1.7.0/src/form_urlencoded.rs:261:40
[INFO] [stdout]     |
[INFO] [stdout] 259 | impl<'a> Target for ::UrlQuery<'a> {
[INFO] [stdout]     |      -- lifetime `'a` defined here
[INFO] [stdout] 260 |     fn as_mut_string(&mut self) -> &mut String { &mut self.url.serialization }
[INFO] [stdout] 261 |     fn finish(self) -> &'a mut ::Url { self.url }
[INFO] [stdout]     |                                        ^^^^^^^^ - here, drop of `self` needs exclusive access to `*self.url`, because the type `UrlQuery<'_>` implements the `Drop` trait
[INFO] [stdout]     |                                        |
[INFO] [stdout]     |                                        returning this value requires that `*self.url` is borrowed for `'a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0713`.
[INFO] [stdout] 
[INFO] [stderr]    Compiling openssl-sys v0.9.27
[INFO] [stderr]    Compiling libz-sys v1.0.18
[INFO] [stderr]    Compiling curl-sys v0.4.1
[INFO] [stderr]    Compiling libssh2-sys v0.2.6
[INFO] [stderr]    Compiling backtrace-sys v0.1.16
[INFO] [stderr]    Compiling libgit2-sys v0.7.1
[INFO] [stderr] error: could not compile `url` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0034]: multiple applicable items in scope
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/petgraph-0.4.11/src/graph_impl/stable_graph/mod.rs:1173:19
[INFO] [stdout]      |
[INFO] [stdout] 1173 |         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 `IterUtilsExt` for the type `I`
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/petgraph-0.4.11/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]      | |_______________________________________________^
[INFO] [stdout]      = note: candidate #2 is defined in an impl of the trait `Iterator` for the type `Enumerate<I>`
[INFO] [stdout] help: disambiguate the method for candidate #1
[INFO] [stdout]      |
[INFO] [stdout] 1173 ~         IterUtilsExt::find_map(&mut self.iter, |(i, node)| {
[INFO] [stdout] 1174 +             node.weight.as_ref().map(move |w| (node_index(i), w))
[INFO] [stdout] 1175 +         })
[INFO] [stdout]      |
[INFO] [stdout] help: disambiguate the method for candidate #2
[INFO] [stdout]      |
[INFO] [stdout] 1173 ~         Iterator::find_map(&mut self.iter, |(i, node)| {
[INFO] [stdout] 1174 +             node.weight.as_ref().map(move |w| (node_index(i), w))
[INFO] [stdout] 1175 +         })
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0034]: multiple applicable items in scope
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/petgraph-0.4.11/src/graph_impl/stable_graph/mod.rs:1365:19
[INFO] [stdout]      |
[INFO] [stdout] 1365 |         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 `IterUtilsExt` for the type `I`
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/petgraph-0.4.11/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]      | |_______________________________________________^
[INFO] [stdout]      = note: candidate #2 is defined in an impl of the trait `Iterator` for the type `Enumerate<I>`
[INFO] [stdout] help: disambiguate the method for candidate #1
[INFO] [stdout]      |
[INFO] [stdout] 1365 ~         IterUtilsExt::find_map(&mut self.iter, |(i, edge)|
[INFO] [stdout] 1366 +             edge.weight.as_ref().map(move |weight| {
[INFO] [stdout] 1367 +                 EdgeReference {
[INFO] [stdout] 1368 +                     index: edge_index(i),
[INFO] [stdout] 1369 +                     node: edge.node,
[INFO] [stdout] 1370 +                     weight: weight,
[INFO] [stdout] 1371 +                 }
[INFO] [stdout] 1372 +             }))
[INFO] [stdout]      |
[INFO] [stdout] help: disambiguate the method for candidate #2
[INFO] [stdout]      |
[INFO] [stdout] 1365 ~         Iterator::find_map(&mut self.iter, |(i, edge)|
[INFO] [stdout] 1366 +             edge.weight.as_ref().map(move |weight| {
[INFO] [stdout] 1367 +                 EdgeReference {
[INFO] [stdout] 1368 +                     index: edge_index(i),
[INFO] [stdout] 1369 +                     node: edge.node,
[INFO] [stdout] 1370 +                     weight: weight,
[INFO] [stdout] 1371 +                 }
[INFO] [stdout] 1372 +             }))
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0034]: multiple applicable items in scope
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/petgraph-0.4.11/src/graph_impl/stable_graph/mod.rs:1529:19
[INFO] [stdout]      |
[INFO] [stdout] 1529 |         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 `IterUtilsExt` for the type `I`
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/petgraph-0.4.11/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]      | |_______________________________________________^
[INFO] [stdout]      = note: candidate #2 is defined in an impl of the trait `Iterator` for the type `Enumerate<I>`
[INFO] [stdout] help: disambiguate the method for candidate #1
[INFO] [stdout]      |
[INFO] [stdout] 1529 ~         IterUtilsExt::find_map(&mut self.iter, |(i, node)| {
[INFO] [stdout] 1530 +             if node.weight.is_some() {
[INFO] [stdout] 1531 +                 Some(node_index(i))
[INFO] [stdout] 1532 +             } else { None }
[INFO] [stdout] 1533 +         })
[INFO] [stdout]      |
[INFO] [stdout] help: disambiguate the method for candidate #2
[INFO] [stdout]      |
[INFO] [stdout] 1529 ~         Iterator::find_map(&mut self.iter, |(i, node)| {
[INFO] [stdout] 1530 +             if node.weight.is_some() {
[INFO] [stdout] 1531 +                 Some(node_index(i))
[INFO] [stdout] 1532 +             } else { None }
[INFO] [stdout] 1533 +         })
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0034]: multiple applicable items in scope
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/petgraph-0.4.11/src/graph_impl/stable_graph/mod.rs:1575:19
[INFO] [stdout]      |
[INFO] [stdout] 1575 |         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 `IterUtilsExt` for the type `I`
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/petgraph-0.4.11/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]      | |_______________________________________________^
[INFO] [stdout]      = note: candidate #2 is defined in an impl of the trait `Iterator` for the type `Enumerate<I>`
[INFO] [stdout] help: disambiguate the method for candidate #1
[INFO] [stdout]      |
[INFO] [stdout] 1575 ~         IterUtilsExt::find_map(&mut self.iter, |(i, node)| {
[INFO] [stdout] 1576 +             if node.weight.is_some() {
[INFO] [stdout] 1577 +                 Some(edge_index(i))
[INFO] [stdout] 1578 +             } else { None }
[INFO] [stdout] 1579 +         })
[INFO] [stdout]      |
[INFO] [stdout] help: disambiguate the method for candidate #2
[INFO] [stdout]      |
[INFO] [stdout] 1575 ~         Iterator::find_map(&mut self.iter, |(i, node)| {
[INFO] [stdout] 1576 +             if node.weight.is_some() {
[INFO] [stdout] 1577 +                 Some(edge_index(i))
[INFO] [stdout] 1578 +             } else { None }
[INFO] [stdout] 1579 +         })
[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` (lib) due to 5 previous errors
[INFO] running `Command { std: "docker" "inspect" "96017cbb6aa07901707aa208f90d36bf343cc0861e252d5af1b526319c9406ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "96017cbb6aa07901707aa208f90d36bf343cc0861e252d5af1b526319c9406ca", kill_on_drop: false }`
[INFO] [stdout] 96017cbb6aa07901707aa208f90d36bf343cc0861e252d5af1b526319c9406ca
