[INFO] cloning repository https://github.com/noshi91/n91lib_rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/noshi91/n91lib_rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnoshi91%2Fn91lib_rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnoshi91%2Fn91lib_rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8c92186d3d69874752865ef644767aa1e24fc61e
[INFO] testing noshi91/n91lib_rs against master#5d5ff84130da0d74c6ece368dbe821d8f83fa526 for pr-79296
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnoshi91%2Fn91lib_rs" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/noshi91/n91lib_rs on toolchain 5d5ff84130da0d74c6ece368dbe821d8f83fa526
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/noshi91/n91lib_rs
[INFO] finished tweaking git repo https://github.com/noshi91/n91lib_rs
[INFO] tweaked toml for git repo https://github.com/noshi91/n91lib_rs written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/noshi91/n91lib_rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 33d83e287853ae98ff383a2190023c9104f7fb6110b4c86ae89f6f60894bf3f2
[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" "33d83e287853ae98ff383a2190023c9104f7fb6110b4c86ae89f6f60894bf3f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "33d83e287853ae98ff383a2190023c9104f7fb6110b4c86ae89f6f60894bf3f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33d83e287853ae98ff383a2190023c9104f7fb6110b4c86ae89f6f60894bf3f2", kill_on_drop: false }`
[INFO] [stdout] 33d83e287853ae98ff383a2190023c9104f7fb6110b4c86ae89f6f60894bf3f2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 70e155159de637042ba1ac9076c0f91d25ed71a14f1bee36f8cf4f8286cca285
[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" "70e155159de637042ba1ac9076c0f91d25ed71a14f1bee36f8cf4f8286cca285", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.8
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand_xoshiro v0.4.0
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling n91lib_rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `Vec::<T, A>::split_off` that must be used
[INFO] [stdout]   --> src/other/polynomial.rs:26:13
[INFO] [stdout]    |
[INFO] [stdout] 26 |             self.coef.split_off(len);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: use `.truncate()` if you don't need the other half
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.01s
[INFO] running `Command { std: "docker" "inspect" "70e155159de637042ba1ac9076c0f91d25ed71a14f1bee36f8cf4f8286cca285", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "70e155159de637042ba1ac9076c0f91d25ed71a14f1bee36f8cf4f8286cca285", kill_on_drop: false }`
[INFO] [stdout] 70e155159de637042ba1ac9076c0f91d25ed71a14f1bee36f8cf4f8286cca285
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9ad6674e43bb995de33abd03540519ffe2b6b2daec48ecf4831a57fa6a2d2dd2
[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" "9ad6674e43bb995de33abd03540519ffe2b6b2daec48ecf4831a57fa6a2d2dd2", kill_on_drop: false }`
[INFO] [stderr]    Compiling n91lib_rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `Vec::<T, A>::split_off` that must be used
[INFO] [stdout]   --> src/other/polynomial.rs:26:13
[INFO] [stdout]    |
[INFO] [stdout] 26 |             self.coef.split_off(len);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: use `.truncate()` if you don't need the other half
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Vec::<T, A>::split_off` that must be used
[INFO] [stdout]   --> src/other/polynomial.rs:26:13
[INFO] [stdout]    |
[INFO] [stdout] 26 |             self.coef.split_off(len);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: use `.truncate()` if you don't need the other half
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 8.78s
[INFO] running `Command { std: "docker" "inspect" "9ad6674e43bb995de33abd03540519ffe2b6b2daec48ecf4831a57fa6a2d2dd2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ad6674e43bb995de33abd03540519ffe2b6b2daec48ecf4831a57fa6a2d2dd2", kill_on_drop: false }`
[INFO] [stdout] 9ad6674e43bb995de33abd03540519ffe2b6b2daec48ecf4831a57fa6a2d2dd2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6b7ac9b5f5571b5ce016c612a2d4d6e36d38a898c97ca863c3261548782849ba
[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" "6b7ac9b5f5571b5ce016c612a2d4d6e36d38a898c97ca863c3261548782849ba", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: unused return value of `Vec::<T, A>::split_off` that must be used
[INFO] [stdout] running 32 tests
[INFO] [stderr]   --> src/other/polynomial.rs:26:13
[INFO] [stderr]    |
[INFO] [stderr] 26 |             self.coef.split_off(len);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: use `.truncate()` if you don't need the other half
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `Vec::<T, A>::split_off` that must be used
[INFO] [stderr]   --> src/other/polynomial.rs:26:13
[INFO] [stderr]    |
[INFO] [stderr] 26 |             self.coef.split_off(len);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: use `.truncate()` if you don't need the other half
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/n91lib_rs-ea2167978bc12e8e
[INFO] [stdout] test algorithm::determinant::test_determinant ... ok
[INFO] [stdout] test algorithm::hafnian::test_hafnian ... ok
[INFO] [stdout] test data_structure::conchon_filliatre_persistent_union_find::test_conchon_filliatre_persistent_union_find ... ok
[INFO] [stdout] test algorithm::subset_convolution::test_subset_convolution ... ok
[INFO] [stdout] test data_structure::interval_heap::interval_heap_test ... ok
[INFO] [stdout] test algorithm::division_free_determinant::test_division_free_determinant ... ok
[INFO] [stdout] test data_structure::radix_heap::test_radix_heap ... ok
[INFO] [stdout] test data_structure::randomized_meldable_heap::randomized_meldable_heap_test ... ok
[INFO] [stdout] test data_structure::fenwick_tree::test_fenwick_tree ... ok
[INFO] [stdout] test algorithm::pow::test_pow ... ok
[INFO] [stdout] test algorithm::givens_rotation::test_givens_rotation ... ok
[INFO] [stdout] test data_structure::skew_heap::skew_heap_test ... ok
[INFO] [stdout] test data_structure::range_minimum_query::test_range_minimum_query ... ok
[INFO] [stdout] test algorithm::permutation_tree::test_permutation_tree ... ok
[INFO] [stdout] test data_structure::bit_vector::test_bit_vector ... ok
[INFO] [stdout] test other::linked_list::test_linked_list ... ok
[INFO] [stdout] test algorithm::number_theoretic_transform::test_number_theoretic_transform ... ok
[INFO] [stdout] test data_structure::sparse_table::test_sparse_table ... ok
[INFO] [stdout] test data_structure::wavelet_matrix::test_wavelet_matrix ... ok
[INFO] [stdout] test other::mod_inv::test_mod_inv_binary_gcd ... ok
[INFO] [stdout] test data_structure::rerooting_persistent_array::test_rerooting_persistent_array ... ok
[INFO] [stdout] test algorithm::maximum_k_subarray::test_maximum_k_subarray ... ok
[INFO] [stdout] test other::gf2m::test_gf2m ... ok
[INFO] [stdout] test algorithm::quick_select::test_quick_select ... ok
[INFO] [stdout] test data_structure::range_add_sum_2d::test_range_add_sum_2d ... ok
[INFO] [stdout] test algorithm::smawk::test_smawk ... ok
[INFO] [stdout] test algorithm::max_min_convolution::test_max_min_convolution ... ok
[INFO] [stdout] test algorithm::karger_stein::test_karger_stein ... ok
[INFO] [stdout] test algorithm::shortest_even_length_cycle::test_shortest_even_length_cycle ... ok
[INFO] [stdout] test data_structure::avl_tree::test_avl_tree ... ok
[INFO] [stdout] test algorithm::bipartite_hamiltonian_cycle::test_bipartite_hamiltonian_cycle ... ok
[INFO] [stderr]    Doc-tests n91lib_rs
[INFO] [stdout] test data_structure::level_ancestor::test_level_ancestor ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 32 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "6b7ac9b5f5571b5ce016c612a2d4d6e36d38a898c97ca863c3261548782849ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b7ac9b5f5571b5ce016c612a2d4d6e36d38a898c97ca863c3261548782849ba", kill_on_drop: false }`
[INFO] [stdout] 6b7ac9b5f5571b5ce016c612a2d4d6e36d38a898c97ca863c3261548782849ba