[INFO] updating cached repository https://github.com/purpleprotocol/graphlib
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] [stderr] From https://github.com/purpleprotocol/graphlib
[INFO] [stderr]    cb3eff2..74c22a2  master     -> master
[INFO] [stderr]  * [new tag]         v0.5.3     -> v0.5.3
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 74c22a2169158a7682a9f738cfe3c34b2b9e707a
[INFO] testing purpleprotocol/graphlib against 1.38.0 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpurpleprotocol%2Fgraphlib" "work/builds/worker-2/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/purpleprotocol/graphlib on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/purpleprotocol/graphlib
[INFO] finished tweaking git repo https://github.com/purpleprotocol/graphlib
[INFO] tweaked toml for git repo https://github.com/purpleprotocol/graphlib written to work/builds/worker-2/source/Cargo.toml
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] 279c28a26217f83da080381f86645f1b41939ef032069e84bc10c97254a5c78f
[INFO] running `"docker" "start" "-a" "279c28a26217f83da080381f86645f1b41939ef032069e84bc10c97254a5c78f"`
[INFO] [stderr]    Compiling hashbrown v0.1.8
[INFO] [stderr]    Compiling graphlib v0.5.3 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `std::mem`
[INFO] [stderr]   --> src/graph.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 | use std::mem;
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `next_ptr` is never read
[INFO] [stderr]   --> src/iterators/bfs.rs:65:21
[INFO] [stderr]    |
[INFO] [stderr] 65 |             let mut next_ptr = None;
[INFO] [stderr]    |                     ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `matches`
[INFO] [stderr]   --> src/edge.rs:46:5
[INFO] [stderr]    |
[INFO] [stderr] 46 |     pub(crate) fn matches(&self, a: &VertexId, b: &VertexId) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `matches_any`
[INFO] [stderr]   --> src/edge.rs:52:5
[INFO] [stderr]    |
[INFO] [stderr] 52 |     pub(crate) fn matches_any(&self, id: &VertexId) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.77s
[INFO] running `"docker" "inspect" "279c28a26217f83da080381f86645f1b41939ef032069e84bc10c97254a5c78f"`
[INFO] running `"docker" "rm" "-f" "279c28a26217f83da080381f86645f1b41939ef032069e84bc10c97254a5c78f"`
[INFO] [stdout] 279c28a26217f83da080381f86645f1b41939ef032069e84bc10c97254a5c78f
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 74b086cf103344e8b8d38d1e5f434b2f8f61cca0c2cb4f3dd346cc5cdb9b6094
[INFO] running `"docker" "start" "-a" "74b086cf103344e8b8d38d1e5f434b2f8f61cca0c2cb4f3dd346cc5cdb9b6094"`
[INFO] [stderr]    Compiling criterion v0.2.11
[INFO] [stderr]    Compiling graphlib v0.5.3 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `f`
[INFO] [stderr]  --> examples/dot.rs:6:13
[INFO] [stderr]   |
[INFO] [stderr] 6 |     let mut f = File::create("example1.dot").unwrap();
[INFO] [stderr]   |             ^ help: consider prefixing with an underscore: `_f`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]  --> examples/dot.rs:6:9
[INFO] [stderr]   |
[INFO] [stderr] 6 |     let mut f = File::create("example1.dot").unwrap();
[INFO] [stderr]   |         ----^
[INFO] [stderr]   |         |
[INFO] [stderr]   |         help: remove this `mut`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::mem`
[INFO] [stderr]   --> src/graph.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 | use std::mem;
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `next_ptr` is never read
[INFO] [stderr]   --> src/iterators/bfs.rs:65:21
[INFO] [stderr]    |
[INFO] [stderr] 65 |             let mut next_ptr = None;
[INFO] [stderr]    |                     ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `matches`
[INFO] [stderr]   --> src/edge.rs:46:5
[INFO] [stderr]    |
[INFO] [stderr] 46 |     pub(crate) fn matches(&self, a: &VertexId, b: &VertexId) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `matches_any`
[INFO] [stderr]   --> src/edge.rs:52:5
[INFO] [stderr]    |
[INFO] [stderr] 52 |     pub(crate) fn matches_any(&self, id: &VertexId) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/iterators/dfs.rs:203:9
[INFO] [stderr]     |
[INFO] [stderr] 203 |         graph.add_edge(&v1, &v2);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/iterators/dfs.rs:204:9
[INFO] [stderr]     |
[INFO] [stderr] 204 |         graph.add_edge(&v3, &v2);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.88s
[INFO] running `"docker" "inspect" "74b086cf103344e8b8d38d1e5f434b2f8f61cca0c2cb4f3dd346cc5cdb9b6094"`
[INFO] running `"docker" "rm" "-f" "74b086cf103344e8b8d38d1e5f434b2f8f61cca0c2cb4f3dd346cc5cdb9b6094"`
[INFO] [stdout] 74b086cf103344e8b8d38d1e5f434b2f8f61cca0c2cb4f3dd346cc5cdb9b6094
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen"`
[INFO] [stdout] 19c1e1f7aa50cc020b503050b59ad970336bbda29b862137cfea568a4d5a3f83
[INFO] running `"docker" "start" "-a" "19c1e1f7aa50cc020b503050b59ad970336bbda29b862137cfea568a4d5a3f83"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/graphlib-9950851e7a0edb37
[INFO] [stdout] 
[INFO] [stdout] running 14 tests
[INFO] [stdout] test graph::tests::test_remove_edge ... ok
[INFO] [stdout] test iterators::dfs::tests::not_cyclic_edge_to_successor ... ok
[INFO] [stdout] test iterators::topo::tests::was_cyclic ... ok
[INFO] [stdout] test graph::tests::dfs ... ok
[INFO] [stdout] test iterators::dfs::tests::cycle_self_edge ... ok
[INFO] [stdout] test graph::tests::is_thread_safe ... ok
[INFO] [stdout] test graph::tests::dfs_mul_roots ... ok
[INFO] [stdout] test iterators::topo::tests::is_cyclic ... ok
[INFO] [stdout] test iterators::dfs::tests::not_cyclic_edge_split_merge ... ok
[INFO] [stdout] test iterators::topo::tests::is_not_cyclic ... ok
[INFO] [stdout] test iterators::dfs::tests::not_cyclic_split_merge_continue ... ok
[INFO] [stdout] test iterators::dfs::tests::not_cyclic ... ok
[INFO] [stdout] test iterators::topo::tests::is_cyclic_and_panic ... ok
[INFO] [stdout] test iterators::dfs::tests::is_cyclic ... ok
[INFO] [stderr]    Doc-tests graphlib
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 14 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 36 tests
[INFO] [stdout] test src/graph.rs - graph::Graph<T>::capacity (line 153) ... ok
[INFO] [stdout] test src/graph.rs - graph::Graph<T>::add_vertex (line 255) ... ok
[INFO] [stdout] test src/graph.rs - graph::Graph<T>::fetch (line 488) ... ok
[INFO] [stdout] test src/graph.rs - graph::Graph<T>::fetch_mut (line 509) ... ok
[INFO] [stdout] test src/graph.rs - graph::Graph<T>::fold (line 673) ... ok
[INFO] [stdout] test src/graph.rs - graph::Graph<T>::in_neighbors_count (line 822) ... ok
[INFO] [stdout] test src/graph.rs - graph::Graph<T>::edges (line 978) ... ok
[INFO] [stdout] test src/graph.rs - graph::Graph<T>::has_edge (line 420) ... ok
[INFO] [stdout] test src/graph.rs - graph::Graph<T>::add_edge_with_weight (line 307) ... ok
[INFO] [stdout] test src/graph.rs - graph::Graph<T>::in_neighbors (line 880) ... ok
[INFO] [stdout] test src/graph.rs - graph::Graph<T>::add_edge (line 276) ... ok
[INFO] [stdout] test src/graph.rs - graph::Graph<T>::map (line 702) ... ok
[INFO] [stdout] test src/graph.rs - graph::Graph<T>::bfs (line 1134) ... ok
[INFO] [stdout] test src/graph.rs - graph::Graph<T>::is_cyclic (line 745) ... ok
[INFO] [stdout] test src/graph.rs - graph::Graph<T>::edge_count (line 445) ... ok
[INFO] [stdout] test src/graph.rs - graph::Graph<T>::dfs (line 1102) ... ok
[INFO] [stdout] test src/graph.rs - graph::Graph<T>::neighbors (line 944) ... ok
[INFO] [stdout] test src/graph.rs - graph::Graph<T>::new (line 101) ... ok
[INFO] [stdout] test src/graph.rs - graph::Graph<T>::neighbors_count (line 798) ... ok
[INFO] [stdout] test src/graph.rs - graph::Graph<T>::retain (line 645) ... ok
[INFO] [stdout] test src/graph.rs - graph::Graph<T>::shrink_to_fit (line 219) ... ok
[INFO] [stdout] test src/graph.rs - graph::Graph<T>::out_neighbors (line 914) ... ok
[INFO] [stdout] test src/graph.rs - graph::Graph<T>::remove_edge (line 589) ... ok
[INFO] [stdout] test src/graph.rs - graph::Graph<T>::out_neighbors_count (line 849) ... ok
[INFO] [stdout] test src/graph.rs - graph::Graph<T>::vertex_count (line 469) ... ok
[INFO] [stdout] test src/graph.rs - graph::Graph<T>::roots_count (line 774) ... ok
[INFO] [stdout] test src/graph.rs - graph::Graph<T>::roots (line 1011) ... ok
[INFO] [stdout] test src/graph.rs - graph::Graph<T>::set_weight (line 375) ... ok
[INFO] [stdout] test src/graph.rs - graph::Graph<T>::tips (line 1043) ... ok
[INFO] [stdout] test src/graph.rs - graph::Graph<T>::remove (line 537) ... ok
[INFO] [stdout] test src/graph.rs - graph::Graph<T>::topo (line 1185) ... ok
[INFO] [stdout] test src/graph.rs - graph::Graph<T>::reserve (line 175) ... ok
[INFO] [stdout] test src/graph.rs - graph::Graph<T>::vertices (line 1075) ... ok
[INFO] [stdout] test src/graph.rs - graph::Graph<T>::with_capacity (line 126) ... ok
[INFO] [stdout] test src/graph.rs - graph::Graph<T>::weight (line 340) ... ok
[INFO] [stdout] test src/lib.rs -  (line 14) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 36 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "19c1e1f7aa50cc020b503050b59ad970336bbda29b862137cfea568a4d5a3f83"`
[INFO] running `"docker" "rm" "-f" "19c1e1f7aa50cc020b503050b59ad970336bbda29b862137cfea568a4d5a3f83"`
[INFO] [stdout] 19c1e1f7aa50cc020b503050b59ad970336bbda29b862137cfea568a4d5a3f83