[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] c83d1320b7c28ac19bad51814fd0c57503d2d9b5
[INFO] testing noshi91/n91lib_rs against beta-2020-07-24 for beta-1.46-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnoshi91%2Fn91lib_rs" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/noshi91/n91lib_rs on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "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-5/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" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 318459186a9d2dd6be3d026d9086d7e0ebe76810809956a4fa330a6dd5cb7f3d
[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" "318459186a9d2dd6be3d026d9086d7e0ebe76810809956a4fa330a6dd5cb7f3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "318459186a9d2dd6be3d026d9086d7e0ebe76810809956a4fa330a6dd5cb7f3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "318459186a9d2dd6be3d026d9086d7e0ebe76810809956a4fa330a6dd5cb7f3d", kill_on_drop: false }`
[INFO] [stdout] 318459186a9d2dd6be3d026d9086d7e0ebe76810809956a4fa330a6dd5cb7f3d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "MAP_USER_ID=0" "-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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aa0763a75f9c12ac71963935f43e58b2162a2f349552cc13310952aba16b8099
[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" "aa0763a75f9c12ac71963935f43e58b2162a2f349552cc13310952aba16b8099", kill_on_drop: false }`
[INFO] [stderr]    Compiling rand_xoshiro v0.4.0
[INFO] [stderr]    Compiling n91lib_rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `std::vec::Vec::<T>::split_off` that must be used
[INFO] [stdout]   --> src/other/polynomial.rs:25:13
[INFO] [stdout]    |
[INFO] [stdout] 25 |             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 2.15s
[INFO] running `Command { std: "docker" "inspect" "aa0763a75f9c12ac71963935f43e58b2162a2f349552cc13310952aba16b8099", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa0763a75f9c12ac71963935f43e58b2162a2f349552cc13310952aba16b8099", kill_on_drop: false }`
[INFO] [stdout] aa0763a75f9c12ac71963935f43e58b2162a2f349552cc13310952aba16b8099
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "MAP_USER_ID=0" "-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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ff1b85f8ffe607dd68eb4084832417bac524683235f840ee49cdf65385c94994
[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" "ff1b85f8ffe607dd68eb4084832417bac524683235f840ee49cdf65385c94994", kill_on_drop: false }`
[INFO] [stderr]    Compiling n91lib_rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `std::vec::Vec::<T>::split_off` that must be used
[INFO] [stdout]   --> src/other/polynomial.rs:25:13
[INFO] [stdout]    |
[INFO] [stdout] 25 |             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 `std::vec::Vec::<T>::split_off` that must be used
[INFO] [stdout]   --> src/other/polynomial.rs:25:13
[INFO] [stdout]    |
[INFO] [stdout] 25 |             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 3.63s
[INFO] running `Command { std: "docker" "inspect" "ff1b85f8ffe607dd68eb4084832417bac524683235f840ee49cdf65385c94994", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff1b85f8ffe607dd68eb4084832417bac524683235f840ee49cdf65385c94994", kill_on_drop: false }`
[INFO] [stdout] ff1b85f8ffe607dd68eb4084832417bac524683235f840ee49cdf65385c94994
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "MAP_USER_ID=0" "-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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen", 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] fb5b6401ec085f34a11fe9b50df539731513ec8610d371a05f3ef07afa202f4d
[INFO] running `Command { std: "docker" "start" "-a" "fb5b6401ec085f34a11fe9b50df539731513ec8610d371a05f3ef07afa202f4d", kill_on_drop: false }`
[INFO] [stderr] warning: unused return value of `std::vec::Vec::<T>::split_off` that must be used
[INFO] [stderr]   --> src/other/polynomial.rs:25:13
[INFO] [stderr]    |
[INFO] [stderr] 25 |             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 `std::vec::Vec::<T>::split_off` that must be used
[INFO] [stderr]   --> src/other/polynomial.rs:25:13
[INFO] [stderr]    |
[INFO] [stderr] 25 |             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 0.11s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/n91lib_rs-0144c0db146b6110
[INFO] [stdout] 
[INFO] [stdout] running 12 tests
[INFO] [stdout] test data_structure::radix_heap::test_radix_heap ... ok
[INFO] [stdout] test algorithm::hafnian::test_hafnian ... ok
[INFO] [stdout] test data_structure::randomized_meldable_heap::randomized_meldable_heap_test ... ok
[INFO] [stdout] test data_structure::interval_heap::interval_heap_test ... ok
[INFO] [stdout] test data_structure::conchon_filliatre_persistent_union_find::test_conchon_filliatre_persistent_union_find ... ok
[INFO] [stdout] test data_structure::skew_heap::skew_heap_test ... ok
[INFO] [stdout] test algorithm::subset_convolution::test_subset_convolution ... ok
[INFO] [stdout] test data_structure::bit_vector::test_bit_vector ... ok
[INFO] [stdout] test algorithm::givens_rotation::test_givens_rotation ... ok
[INFO] [stdout] test other::mod_inv::test_mod_inv_binary_gcd ... ok
[INFO] [stdout] test data_structure::wavelet_matrix::test_wavelet_matrix ... ok
[INFO] [stderr]    Doc-tests n91lib_rs
[INFO] [stdout] test data_structure::rerooting_persistent_array::test_rerooting_persistent_array ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 12 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" "fb5b6401ec085f34a11fe9b50df539731513ec8610d371a05f3ef07afa202f4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb5b6401ec085f34a11fe9b50df539731513ec8610d371a05f3ef07afa202f4d", kill_on_drop: false }`
[INFO] [stdout] fb5b6401ec085f34a11fe9b50df539731513ec8610d371a05f3ef07afa202f4d