[INFO] updating cached repository https://github.com/nikkolasg/drg-attacks
[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] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] da1d079cc0cc75e8171fb187026fb3fb6ebfb476
[INFO] testing nikkolasg/drg-attacks against 1.38.0 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnikkolasg%2Fdrg-attacks" "work/builds/worker-4/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nikkolasg/drg-attacks 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/nikkolasg/drg-attacks
[INFO] finished tweaking git repo https://github.com/nikkolasg/drg-attacks
[INFO] tweaked toml for git repo https://github.com/nikkolasg/drg-attacks written to work/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/nikkolasg/drg-attacks already has a lockfile, it will not be regenerated
[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-4/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-4/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] 9221c6af414c0b109be3f5abcedc30e50bbca084ba71df98f383dd7d74c6a638
[INFO] running `"docker" "start" "-a" "9221c6af414c0b109be3f5abcedc30e50bbca084ba71df98f383dd7d74c6a638"`
[INFO] [stderr]    Compiling getrandom v0.1.11
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.1
[INFO] [stderr]    Compiling rand v0.7.0
[INFO] [stderr]    Compiling drg-attacks v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `std::iter::FromIterator`
[INFO] [stderr]  --> src/attacks.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::iter::FromIterator;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::iter::FromIterator`
[INFO] [stderr]  --> src/graph.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::iter::FromIterator;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/main.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `valiant_basic`
[INFO] [stderr]   --> src/attacks.rs:19:1
[INFO] [stderr]    |
[INFO] [stderr] 19 | fn valiant_basic(g: &Graph, target: usize) -> HashSet<usize> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `valiant_partitions`
[INFO] [stderr]   --> src/attacks.rs:66:1
[INFO] [stderr]    |
[INFO] [stderr] 66 | fn valiant_partitions(g: &Graph) -> Vec<HashSet<Edge>> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `msbd`
[INFO] [stderr]  --> src/utils.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn msbd(u: usize, v: usize) -> usize {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `node_bitsize`
[INFO] [stderr]   --> src/utils.rs:23:1
[INFO] [stderr]    |
[INFO] [stderr] 23 | pub fn node_bitsize() -> usize {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.35s
[INFO] running `"docker" "inspect" "9221c6af414c0b109be3f5abcedc30e50bbca084ba71df98f383dd7d74c6a638"`
[INFO] running `"docker" "rm" "-f" "9221c6af414c0b109be3f5abcedc30e50bbca084ba71df98f383dd7d74c6a638"`
[INFO] [stdout] 9221c6af414c0b109be3f5abcedc30e50bbca084ba71df98f383dd7d74c6a638
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-4/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] b7b4142dc4aaeaa9fe335ed50af1f167ca54ca132a71a3647526e21d32c37b05
[INFO] running `"docker" "start" "-a" "b7b4142dc4aaeaa9fe335ed50af1f167ca54ca132a71a3647526e21d32c37b05"`
[INFO] [stderr]    Compiling drg-attacks v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.13s
[INFO] running `"docker" "inspect" "b7b4142dc4aaeaa9fe335ed50af1f167ca54ca132a71a3647526e21d32c37b05"`
[INFO] running `"docker" "rm" "-f" "b7b4142dc4aaeaa9fe335ed50af1f167ca54ca132a71a3647526e21d32c37b05"`
[INFO] [stdout] b7b4142dc4aaeaa9fe335ed50af1f167ca54ca132a71a3647526e21d32c37b05
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-4/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] 6a0038acb319718364a1cfa803113e6a85c12f59dbbf6d12fda2ecc49c0aeb2b
[INFO] running `"docker" "start" "-a" "6a0038acb319718364a1cfa803113e6a85c12f59dbbf6d12fda2ecc49c0aeb2b"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/drg_attacks-230d1f1367f2ebb8
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test graph::tests::graph_bucket_sample ... ok
[INFO] [stdout] test graph::tests::graph_depth ... ok
[INFO] [stdout] test attacks::test::test_valiant_partitions ... ok
[INFO] [stdout] test attacks::test::test_valiant_reduce ... ok
[INFO] [stdout] test graph::tests::graph_new ... ok
[INFO] [stdout] test graph::tests::graph_meta_sample ... ok
[INFO] [stdout] test graph::tests::graph_remove ... ok
[INFO] [stdout] test utils::test::test_msbd ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "6a0038acb319718364a1cfa803113e6a85c12f59dbbf6d12fda2ecc49c0aeb2b"`
[INFO] running `"docker" "rm" "-f" "6a0038acb319718364a1cfa803113e6a85c12f59dbbf6d12fda2ecc49c0aeb2b"`
[INFO] [stdout] 6a0038acb319718364a1cfa803113e6a85c12f59dbbf6d12fda2ecc49c0aeb2b