[INFO] cloning repository https://github.com/tuzz/laika
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tuzz/laika" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftuzz%2Flaika", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftuzz%2Flaika'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2406416447ead404f7c14d7dbb61c98984d5b3e8
[INFO] checking tuzz/laika against beta-2021-10-15 for beta-1.56-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftuzz%2Flaika" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tuzz/laika on toolchain beta-2021-10-15
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tuzz/laika
[INFO] finished tweaking git repo https://github.com/tuzz/laika
[INFO] tweaked toml for git repo https://github.com/tuzz/laika written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/tuzz/laika already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ansi_term v0.9.0
[INFO] [stderr]   Downloaded stdweb-derive v0.4.0
[INFO] [stderr]   Downloaded lalrpop v0.13.1
[INFO] [stderr]   Downloaded syn v0.12.15
[INFO] [stderr]   Downloaded rand v0.5.4
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[INFO] [stderr]   Downloaded stdweb-internal-macros v0.1.0
[INFO] [stderr]   Downloaded rand_core v0.2.1
[INFO] [stderr]   Downloaded lalrpop-intern v0.13.1
[INFO] [stderr]   Downloaded aho-corasick v0.6.6
[INFO] [stderr]   Downloaded RustyXML v0.1.1
[INFO] [stderr]   Downloaded itertools v0.5.10
[INFO] [stderr]   Downloaded clap v2.20.5
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[INFO] [stderr]   Downloaded diff v0.1.11
[INFO] [stderr]   Downloaded tendril v0.2.4
[INFO] [stderr]   Downloaded html5ever v0.13.1
[INFO] [stderr]   Downloaded utf-8 v0.6.0
[INFO] [stderr]   Downloaded quote v0.6.5
[INFO] [stderr]   Downloaded assert_approx_eq v1.0.0
[INFO] [stderr]   Downloaded discard v1.0.3
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[INFO] [stderr]   Downloaded vec_map v0.6.0
[INFO] [stderr]   Downloaded base-x v0.2.2
[INFO] [stderr]   Downloaded proc-macro2 v0.4.9
[INFO] [stderr]   Downloaded webgl_generator v0.1.0
[INFO] [stderr]   Downloaded serde_derive v1.0.71
[INFO] [stderr]   Downloaded new_debug_unreachable v1.0.1
[INFO] [stderr]   Downloaded html2runes v1.0.0
[INFO] [stderr]   Downloaded ena v0.5.0
[INFO] [stderr]   Downloaded serde v1.0.71
[INFO] [stderr]   Downloaded lalrpop-snap v0.13.1
[INFO] [stderr]   Downloaded matches v0.1.7
[INFO] [stderr]   Downloaded serde_json v1.0.24
[INFO] [stderr]   Downloaded string_cache_codegen v0.3.1
[INFO] [stderr]   Downloaded html5ever-atoms v0.2.2
[INFO] [stderr]   Downloaded ascii-canvas v1.0.0
[INFO] [stderr]   Downloaded docopt v0.7.0
[INFO] [stderr]   Downloaded version_check v0.1.4
[INFO] [stderr]   Downloaded lalrpop-util v0.13.1
[INFO] [stderr]   Downloaded syn v0.14.7
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-10-15" "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] 8c0fde3e315f2501ac3a8da8eb5a0174103c4a3cb777ef1db9052f4b1c9b0f93
[INFO] running `Command { std: "docker" "start" "-a" "8c0fde3e315f2501ac3a8da8eb5a0174103c4a3cb777ef1db9052f4b1c9b0f93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8c0fde3e315f2501ac3a8da8eb5a0174103c4a3cb777ef1db9052f4b1c9b0f93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c0fde3e315f2501ac3a8da8eb5a0174103c4a3cb777ef1db9052f4b1c9b0f93", kill_on_drop: false }`
[INFO] [stdout] 8c0fde3e315f2501ac3a8da8eb5a0174103c4a3cb777ef1db9052f4b1c9b0f93
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-10-15" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bda4f6adf4aad434c02ff5e87e8db5e1858ef38b810a48cc3c13cc8ef58c67c9
[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" "bda4f6adf4aad434c02ff5e87e8db5e1858ef38b810a48cc3c13cc8ef58c67c9", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling strsim v0.6.0
[INFO] [stderr]    Compiling ucd-util v0.1.1
[INFO] [stderr]    Compiling encoding_index_tests v0.1.4
[INFO] [stderr]    Compiling bit-vec v0.4.4
[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 regex-syntax v0.4.2
[INFO] [stderr]    Compiling mac v0.1.1
[INFO] [stderr]    Compiling matches v0.1.7
[INFO] [stderr]    Compiling vec_map v0.6.0
[INFO] [stderr]    Compiling RustyXML v0.1.1
[INFO] [stderr]    Compiling stdweb v0.4.8
[INFO] [stderr]     Checking discard v1.0.3
[INFO] [stderr]     Checking assert_approx_eq v1.0.0
[INFO] [stderr]    Compiling memchr v2.0.1
[INFO] [stderr]    Compiling term_size v0.2.3
[INFO] [stderr]    Compiling phf_shared v0.7.22
[INFO] [stderr]    Compiling ascii-canvas v1.0.0
[INFO] [stderr]    Compiling unreachable v0.1.1
[INFO] [stderr]    Compiling petgraph v0.4.12
[INFO] [stderr]    Compiling proc-macro2 v0.4.9
[INFO] [stderr]    Compiling proc-macro2 v0.2.3
[INFO] [stderr]    Compiling log v0.4.3
[INFO] [stderr]    Compiling heck v0.3.0
[INFO] [stderr]     Checking rand v0.5.4
[INFO] [stderr]    Compiling aho-corasick v0.6.6
[INFO] [stderr]    Compiling utf-8 v0.6.0
[INFO] [stderr]    Compiling encoding-index-korean v1.20141219.5
[INFO] [stderr]    Compiling encoding-index-singlebyte v1.20141219.5
[INFO] [stderr]    Compiling encoding-index-japanese v1.20141219.5
[INFO] [stderr]    Compiling encoding-index-tradchinese v1.20141219.5
[INFO] [stderr]    Compiling encoding-index-simpchinese v1.20141219.5
[INFO] [stderr]    Compiling new_debug_unreachable v1.0.1
[INFO] [stderr]    Compiling regex-syntax v0.5.6
[INFO] [stderr]    Compiling bit-set v0.4.0
[INFO] [stderr]    Compiling clap v2.20.5
[INFO] [stderr]    Compiling debug_unreachable v0.1.1
[INFO] [stderr]    Compiling phf_generator v0.7.22
[INFO] [stderr]    Compiling phf v0.7.22
[INFO] [stderr]    Compiling quote v0.4.2
[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 `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]      | |_______________________________________________^
[INFO] [stdout]      = note: candidate #2 is defined in an impl of the trait `Iterator` for the type `Enumerate<I>`
[INFO] [stdout] help: disambiguate the associated function for candidate #1
[INFO] [stdout]      |
[INFO] [stdout] 1171 ~         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 ~         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 `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]      | |_______________________________________________^
[INFO] [stdout]      = note: candidate #2 is defined in an impl of the trait `Iterator` for the type `Enumerate<I>`
[INFO] [stdout] help: disambiguate the associated function for candidate #1
[INFO] [stdout]      |
[INFO] [stdout] 1363 ~         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 ~         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 `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]      | |_______________________________________________^
[INFO] [stdout]      = note: candidate #2 is defined in an impl of the trait `Iterator` for the type `Enumerate<I>`
[INFO] [stdout] help: disambiguate the associated function for candidate #1
[INFO] [stdout]      |
[INFO] [stdout] 1527 ~         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 ~         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 `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]      | |_______________________________________________^
[INFO] [stdout]      = note: candidate #2 is defined in an impl of the trait `Iterator` for the type `Enumerate<I>`
[INFO] [stdout] help: disambiguate the associated function for candidate #1
[INFO] [stdout]      |
[INFO] [stdout] 1573 ~         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 ~         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 quote v0.6.5
[INFO] [stderr]    Compiling futf v0.1.4
[INFO] [stderr]    Compiling thread_local v0.3.5
[INFO] [stderr]    Compiling atty v0.1.2
[INFO] [stderr]    Compiling syn v0.12.15
[INFO] [stderr]    Compiling string_cache_codegen 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` due to 5 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "bda4f6adf4aad434c02ff5e87e8db5e1858ef38b810a48cc3c13cc8ef58c67c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bda4f6adf4aad434c02ff5e87e8db5e1858ef38b810a48cc3c13cc8ef58c67c9", kill_on_drop: false }`
[INFO] [stdout] bda4f6adf4aad434c02ff5e87e8db5e1858ef38b810a48cc3c13cc8ef58c67c9
