[INFO] cloning repository https://github.com/pmeredit/pgen [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pmeredit/pgen" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpmeredit%2Fpgen", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpmeredit%2Fpgen'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 8676f4cca83a61c187519de5297202926fda7470 [INFO] building pmeredit/pgen against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpmeredit%2Fpgen" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/pmeredit/pgen [INFO] finished tweaking git repo https://github.com/pmeredit/pgen [INFO] tweaked toml for git repo https://github.com/pmeredit/pgen written to /workspace/builds/worker-7-tc1/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/pmeredit/pgen on toolchain c7f6aa2869acdbf014d094c6e427e554e160b6db [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/pmeredit/pgen 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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024 [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded linked-hash-map v0.5.0 [INFO] [stderr] Downloaded serde_derive v1.0.20 [INFO] [stderr] Downloaded num-traits v0.1.40 [INFO] [stderr] Downloaded serde_json v1.0.6 [INFO] [stderr] Downloaded thread_local v0.3.4 [INFO] [stderr] Downloaded regex v0.2.2 [INFO] [stderr] Downloaded num-integer v0.1.35 [INFO] [stderr] Downloaded bson v0.10.0 [INFO] [stderr] Downloaded diff v0.1.10 [INFO] [stderr] Downloaded docopt v0.7.0 [INFO] [stderr] Downloaded byteorder v1.1.0 [INFO] [stderr] Downloaded num v0.1.40 [INFO] [stderr] Downloaded hostname v0.1.3 [INFO] [stderr] Downloaded lalrpop-snap v0.15.0 [INFO] [stderr] Downloaded hex v0.2.0 [INFO] [stderr] Downloaded time v0.1.38 [INFO] [stderr] Downloaded redox_syscall v0.1.31 [INFO] [stderr] Downloaded num-iter v0.1.34 [INFO] [stderr] Downloaded bitflags v0.7.0 [INFO] [stderr] Downloaded chrono v0.4.0 [INFO] [stderr] Downloaded clap v2.29.2 [INFO] [stderr] Downloaded phf_shared v0.7.21 [INFO] [stderr] Downloaded siphasher v0.2.2 [INFO] [stderr] Downloaded gcc v0.3.54 [INFO] [stderr] Downloaded rust-crypto v0.2.36 [INFO] [stderr] Downloaded string_cache_shared v0.3.0 [INFO] [stderr] Downloaded memchr v1.0.2 [INFO] [stderr] Downloaded atty v0.1.2 [INFO] [stderr] Downloaded itertools v0.5.10 [INFO] [stderr] Downloaded proc-macro-hack-impl v0.4.0 [INFO] [stderr] Downloaded bit-set v0.4.0 [INFO] [stderr] Downloaded lalrpop-intern v0.15.0 [INFO] [stderr] Downloaded debug_unreachable v0.1.1 [INFO] [stderr] Downloaded fuchsia-zircon v0.2.1 [INFO] [stderr] Downloaded lalrpop v0.15.0 [INFO] [stderr] Downloaded libc v0.2.33 [INFO] [stderr] Downloaded serde_test v1.0.20 [INFO] [stderr] Downloaded string_cache v0.7.1 [INFO] [stderr] Downloaded lalrpop-util v0.15.0 [INFO] [stderr] Downloaded lazy_static v0.2.9 [INFO] [stderr] Downloaded winutil v0.1.1 [INFO] [stderr] Downloaded bit-vec v0.4.4 [INFO] [stderr] Downloaded fuchsia-zircon-sys v0.2.0 [INFO] [stderr] Downloaded serde v1.0.20 [INFO] [stderr] Downloaded ascii-canvas v1.0.0 [INFO] [stderr] Downloaded petgraph v0.4.10 [INFO] [stderr] Downloaded unreachable v0.1.1 [INFO] [stderr] Downloaded aho-corasick v0.6.3 [INFO] [stderr] Downloaded rand v0.3.18 [INFO] [stderr] Downloaded phf_generator v0.7.21 [INFO] [stderr] Downloaded string_cache_codegen v0.4.0 [INFO] [stderr] Downloaded serde_derive_internals v0.17.0 [INFO] [stderr] Downloaded winapi v0.3.4 [INFO] [stderr] Downloaded unindent v0.1.2 [INFO] [stderr] Downloaded indoc-impl v0.2.3 [INFO] [stderr] Downloaded indoc v0.2.3 [INFO] [stderr] Downloaded ena v0.5.0 [INFO] [stderr] Downloaded fixedbitset v0.1.8 [INFO] [stderr] Downloaded ordermap v0.3.0 [INFO] [stderr] Downloaded lalrpop-util v0.13.1 [INFO] [stderr] Downloaded atty v0.2.6 [INFO] [stderr] Downloaded proc-macro-hack v0.4.0 [INFO] [stderr] Downloaded either v1.3.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] b7c94def835d74d14a8f7a1708a893a7bd61c69795c761cca8831c147e2952a6 [INFO] running `Command { std: "docker" "start" "-a" "b7c94def835d74d14a8f7a1708a893a7bd61c69795c761cca8831c147e2952a6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "b7c94def835d74d14a8f7a1708a893a7bd61c69795c761cca8831c147e2952a6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b7c94def835d74d14a8f7a1708a893a7bd61c69795c761cca8831c147e2952a6", kill_on_drop: false }` [INFO] [stdout] b7c94def835d74d14a8f7a1708a893a7bd61c69795c761cca8831c147e2952a6 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e0bd5fdd17b5b8719cbcfc97b2b23949b9515d8ec013545a8ce9cf262b123c49 [INFO] running `Command { std: "docker" "start" "-a" "e0bd5fdd17b5b8719cbcfc97b2b23949b9515d8ec013545a8ce9cf262b123c49", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024 [INFO] [stderr] Compiling libc v0.2.33 [INFO] [stderr] Compiling quote v0.3.15 [INFO] [stderr] Compiling winapi-build v0.1.1 [INFO] [stderr] Compiling siphasher v0.2.2 [INFO] [stderr] Compiling lazy_static v0.2.9 [INFO] [stderr] Compiling rustc-serialize v0.3.24 [INFO] [stderr] Compiling serde v1.0.20 [INFO] [stderr] Compiling utf8-ranges v1.0.0 [INFO] [stderr] Compiling winapi v0.2.8 [INFO] [stderr] Compiling regex-syntax v0.4.1 [INFO] [stderr] Compiling strsim v0.6.0 [INFO] [stderr] Compiling fixedbitset v0.1.8 [INFO] [stderr] Compiling ordermap v0.3.0 [INFO] [stderr] Compiling string_cache_shared v0.3.0 [INFO] [stderr] Compiling term v0.4.6 [INFO] [stderr] Compiling unreachable v1.0.0 [INFO] [stderr] Compiling thread_local v0.3.4 [INFO] [stderr] Compiling either v1.3.0 [INFO] [stderr] Compiling bit-vec v0.4.4 [INFO] [stderr] Compiling ena v0.5.0 [INFO] [stderr] Compiling lalrpop-util v0.15.0 [INFO] [stdout] error[E0310]: the parameter type `T` may not live long enough [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/rustc-serialize-0.3.24/src/serialize.rs:1155:5 [INFO] [stdout] | [INFO] [stdout] 1155 | fn decode(d: &mut D) -> Result, D::Error> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | the parameter type `T` must be valid for the static lifetime... [INFO] [stdout] | ...so that the type `T` will meet its required lifetime bounds... [INFO] [stdout] | [INFO] [stdout] note: ...that is required by this bound [INFO] [stdout] --> /rustc/c7f6aa2869acdbf014d094c6e427e554e160b6db/library/alloc/src/borrow.rs:181:30 [INFO] [stdout] help: consider adding an explicit lifetime bound [INFO] [stdout] | [INFO] [stdout] 1151 | impl<'a, T: ?Sized + 'static> Decodable for Cow<'a, T> [INFO] [stdout] | +++++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling itertools v0.5.10 [INFO] [stderr] Compiling bit-set v0.4.0 [INFO] [stderr] Compiling petgraph v0.4.10 [INFO] [stderr] Compiling diff v0.1.10 [INFO] [stderr] Compiling kernel32-sys v0.2.2 [INFO] [stderr] Compiling phf_shared v0.7.21 [INFO] [stderr] Compiling unicode-xid v0.0.4 [INFO] [stderr] Compiling lalrpop-intern v0.15.0 [INFO] [stderr] Compiling num-traits v0.1.40 [INFO] [stderr] Compiling ascii-canvas v1.0.0 [INFO] [stderr] Compiling synom v0.11.3 [INFO] [stderr] Compiling unreachable v0.1.1 [INFO] [stderr] Compiling debug_unreachable v0.1.1 [INFO] [stderr] Compiling syn v0.11.11 [INFO] [stderr] Compiling lazy_static v1.0.0 [INFO] [stderr] Compiling gcc v0.3.54 [INFO] [stderr] Compiling precomputed-hash v0.1.1 [INFO] [stderr] Compiling rand v0.3.18 [INFO] [stderr] Compiling memchr v1.0.2 [INFO] [stderr] Compiling atty v0.1.2 [INFO] [stderr] Compiling time v0.1.38 [INFO] [stderr] Compiling proc-macro-hack-impl v0.4.0 [INFO] [stderr] Compiling unicode-width v0.1.4 [INFO] [stderr] Compiling aho-corasick v0.6.3 [INFO] [stderr] Compiling unindent v0.1.2 [INFO] [stderr] Compiling itoa v0.3.4 [INFO] [stderr] Compiling textwrap v0.9.0 [INFO] [stderr] Compiling atty v0.2.6 [INFO] [stderr] Compiling hostname v0.1.3 [INFO] [stderr] Compiling proc-macro-hack v0.4.0 [INFO] [stderr] Compiling ansi_term v0.10.2 [INFO] [stderr] Compiling byteorder v1.1.0 [INFO] [stderr] Compiling bitflags v1.0.1 [INFO] [stderr] Compiling regex v0.2.2 [INFO] [stderr] Compiling vec_map v0.8.0 [INFO] [stderr] Compiling linked-hash-map v0.3.0 [INFO] [stderr] Compiling num-integer v0.1.35 [INFO] [stderr] Compiling hex v0.2.0 [INFO] [stderr] Compiling clap v2.29.2 [INFO] [stdout] error[E0034]: multiple applicable items in scope [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/petgraph-0.4.10/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 `Iterator` for the type `Enumerate` [INFO] [stdout] note: candidate #2 is defined in an impl of the trait `IterUtilsExt` for the type `I` [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/petgraph-0.4.10/src/iter_utils.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | / fn find_map(&mut self, mut f: F) -> Option [INFO] [stdout] 6 | | where F: FnMut(Self::Item) -> Option [INFO] [stdout] | |_______________________________________________^ [INFO] [stdout] help: disambiguate the method for candidate #1 [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] help: disambiguate the method for candidate #2 [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] [INFO] [stdout] [INFO] [stderr] Compiling lalrpop-util v0.13.1 [INFO] [stdout] error[E0034]: multiple applicable items in scope [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/petgraph-0.4.10/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 `Iterator` for the type `Enumerate` [INFO] [stdout] note: candidate #2 is defined in an impl of the trait `IterUtilsExt` for the type `I` [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/petgraph-0.4.10/src/iter_utils.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | / fn find_map(&mut self, mut f: F) -> Option [INFO] [stdout] 6 | | where F: FnMut(Self::Item) -> Option [INFO] [stdout] | |_______________________________________________^ [INFO] [stdout] help: disambiguate the method for candidate #1 [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] help: disambiguate the method for candidate #2 [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] [INFO] [stdout] [INFO] [stdout] error[E0034]: multiple applicable items in scope [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/petgraph-0.4.10/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 `Iterator` for the type `Enumerate` [INFO] [stdout] note: candidate #2 is defined in an impl of the trait `IterUtilsExt` for the type `I` [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/petgraph-0.4.10/src/iter_utils.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | / fn find_map(&mut self, mut f: F) -> Option [INFO] [stdout] 6 | | where F: FnMut(Self::Item) -> Option [INFO] [stdout] | |_______________________________________________^ [INFO] [stdout] help: disambiguate the method for candidate #1 [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] help: disambiguate the method for candidate #2 [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] [INFO] [stdout] [INFO] [stdout] error[E0034]: multiple applicable items in scope [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/petgraph-0.4.10/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 `Iterator` for the type `Enumerate` [INFO] [stdout] note: candidate #2 is defined in an impl of the trait `IterUtilsExt` for the type `I` [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/petgraph-0.4.10/src/iter_utils.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | / fn find_map(&mut self, mut f: F) -> Option [INFO] [stdout] 6 | | where F: FnMut(Self::Item) -> Option [INFO] [stdout] | |_______________________________________________^ [INFO] [stdout] help: disambiguate the method for candidate #1 [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] help: disambiguate the method for candidate #2 [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] [INFO] [stdout] [INFO] [stderr] Compiling num-iter v0.1.34 [INFO] [stderr] Compiling phf_generator v0.7.21 [INFO] [stderr] Compiling rust-crypto v0.2.36 [INFO] [stderr] Compiling string_cache_codegen v0.4.0 [INFO] [stderr] Compiling num v0.1.40 [INFO] [stderr] Compiling chrono v0.4.0 [INFO] [stderr] Compiling serde_derive_internals v0.17.0 [INFO] [stderr] Compiling indoc-impl v0.2.3 [INFO] [stderr] Compiling string_cache v0.7.1 [INFO] [stderr] Compiling indoc v0.2.3 [INFO] [stdout] For more information about this error, try `rustc --explain E0034`. [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0310`. [INFO] [stdout] [INFO] [stderr] error: could not compile `petgraph` (lib) due to 4 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: could not compile `rustc-serialize` (lib) due to 1 previous error [INFO] running `Command { std: "docker" "inspect" "e0bd5fdd17b5b8719cbcfc97b2b23949b9515d8ec013545a8ce9cf262b123c49", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e0bd5fdd17b5b8719cbcfc97b2b23949b9515d8ec013545a8ce9cf262b123c49", kill_on_drop: false }` [INFO] [stdout] e0bd5fdd17b5b8719cbcfc97b2b23949b9515d8ec013545a8ce9cf262b123c49