[INFO] updating cached repository https://github.com/irvingwashington/leaky_bucket
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/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] 46239661d6c1a941e1cd08f7b7b4ca93f8e89fd6
[INFO] testing irvingwashington/leaky_bucket against beta-2020-06-03 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Firvingwashington%2Fleaky_bucket" "/workspace/builds/worker-11/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/irvingwashington/leaky_bucket on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/irvingwashington/leaky_bucket
[INFO] finished tweaking git repo https://github.com/irvingwashington/leaky_bucket
[INFO] tweaked toml for git repo https://github.com/irvingwashington/leaky_bucket written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/irvingwashington/leaky_bucket already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] eb3d594af206d495928bcc43359ac62ef85be4c6f02c3d9dcb98e0a1fdb126fd
[INFO] running `"docker" "start" "-a" "eb3d594af206d495928bcc43359ac62ef85be4c6f02c3d9dcb98e0a1fdb126fd"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling serde v1.0.32
[INFO] [stderr]    Compiling serde_derive_internals v0.20.1
[INFO] [stderr]    Compiling serde_derive v1.0.32
[INFO] [stderr]    Compiling bincode v1.0.0
[INFO] [stderr]    Compiling leaky_bucket v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:32:13
[INFO] [stderr]    |
[INFO] [stderr] 32 |         let mut stream = stream_result.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: variable does not need to be mutable
[INFO] [stderr]   --> src/hash_storage.rs:35:25
[INFO] [stderr]    |
[INFO] [stderr] 35 |                     let mut priority_elements = self.elements.get_mut(&priority).unwrap();
[INFO] [stderr]    |                         ----^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |                         |
[INFO] [stderr]    |                         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.26s
[INFO] running `"docker" "inspect" "eb3d594af206d495928bcc43359ac62ef85be4c6f02c3d9dcb98e0a1fdb126fd"`
[INFO] running `"docker" "rm" "-f" "eb3d594af206d495928bcc43359ac62ef85be4c6f02c3d9dcb98e0a1fdb126fd"`
[INFO] [stdout] eb3d594af206d495928bcc43359ac62ef85be4c6f02c3d9dcb98e0a1fdb126fd
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0e1c310e3f0178503b5a13c1d06e63b2df083828f0cf0c1487322bcfe1c99437
[INFO] running `"docker" "start" "-a" "0e1c310e3f0178503b5a13c1d06e63b2df083828f0cf0c1487322bcfe1c99437"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling leaky_bucket v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:32:13
[INFO] [stderr]    |
[INFO] [stderr] 32 |         let mut stream = stream_result.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: variable does not need to be mutable
[INFO] [stderr]   --> src/hash_storage.rs:35:25
[INFO] [stderr]    |
[INFO] [stderr] 35 |                     let mut priority_elements = self.elements.get_mut(&priority).unwrap();
[INFO] [stderr]    |                         ----^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |                         |
[INFO] [stderr]    |                         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.68s
[INFO] running `"docker" "inspect" "0e1c310e3f0178503b5a13c1d06e63b2df083828f0cf0c1487322bcfe1c99437"`
[INFO] running `"docker" "rm" "-f" "0e1c310e3f0178503b5a13c1d06e63b2df083828f0cf0c1487322bcfe1c99437"`
[INFO] [stdout] 0e1c310e3f0178503b5a13c1d06e63b2df083828f0cf0c1487322bcfe1c99437
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "test" "--frozen"`
[INFO] [stdout] 3b23862e039846e3db6fd047b9e043de761397fedc03657fcc1715c47efb78fc
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "3b23862e039846e3db6fd047b9e043de761397fedc03657fcc1715c47efb78fc"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:32:13
[INFO] [stderr]    |
[INFO] [stderr] 32 |         let mut stream = stream_result.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: variable does not need to be mutable
[INFO] [stderr]   --> src/hash_storage.rs:35:25
[INFO] [stderr]    |
[INFO] [stderr] 35 |                     let mut priority_elements = self.elements.get_mut(&priority).unwrap();
[INFO] [stderr]    |                         ----^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |                         |
[INFO] [stderr]    |                         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/leaky_bucket-7820e2023a87173a
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test hash_storage::test::it_clears ... ok
[INFO] [stdout] test hash_storage::test::it_preserves_order_for_the_same_priority ... ok
[INFO] [stdout] test hash_storage::test::it_returns_correct_max_priority ... ok
[INFO] [stdout] test hash_storage::test::it_works_for_a_single_element ... ok
[INFO] [stdout] test hash_storage::test::it_works_for_2_elements ... ok
[INFO] [stdout] test hash_storage::test::it_works_for_no_elements ... ok
[INFO] [stdout] test hash_storage::test::it_works_for_more_elements ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "3b23862e039846e3db6fd047b9e043de761397fedc03657fcc1715c47efb78fc"`
[INFO] running `"docker" "rm" "-f" "3b23862e039846e3db6fd047b9e043de761397fedc03657fcc1715c47efb78fc"`
[INFO] [stdout] 3b23862e039846e3db6fd047b9e043de761397fedc03657fcc1715c47efb78fc