[INFO] cloning repository https://github.com/wspeirs/jump-consistent-hashing
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wspeirs/jump-consistent-hashing" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwspeirs%2Fjump-consistent-hashing", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwspeirs%2Fjump-consistent-hashing'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c00759bb94789fe7dcd35622e35e3491af12e42e
[INFO] testing wspeirs/jump-consistent-hashing against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwspeirs%2Fjump-consistent-hashing" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/wspeirs/jump-consistent-hashing on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/wspeirs/jump-consistent-hashing
[INFO] finished tweaking git repo https://github.com/wspeirs/jump-consistent-hashing
[INFO] tweaked toml for git repo https://github.com/wspeirs/jump-consistent-hashing written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/wspeirs/jump-consistent-hashing already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7da9abc4084d7ceccf3a34b05b177828055f7d611714b1e6412e0c5c7fc91d1d
[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" "7da9abc4084d7ceccf3a34b05b177828055f7d611714b1e6412e0c5c7fc91d1d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7da9abc4084d7ceccf3a34b05b177828055f7d611714b1e6412e0c5c7fc91d1d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7da9abc4084d7ceccf3a34b05b177828055f7d611714b1e6412e0c5c7fc91d1d", kill_on_drop: false }`
[INFO] [stdout] 7da9abc4084d7ceccf3a34b05b177828055f7d611714b1e6412e0c5c7fc91d1d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e719f181b01052f65cb771768584616f6385b814054fb9096ec3a96fc5391bdc
[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" "e719f181b01052f65cb771768584616f6385b814054fb9096ec3a96fc5391bdc", kill_on_drop: false }`
[INFO] [stderr]    Compiling jump-consistent-hashing v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/main.rs:4:86
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn assign_servers(key: u64, num_servers: u64, copies: usize) -> Result<Vec<u64>, Box<Error>> {
[INFO] [stdout]   |                                                                                      ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/main.rs:39:53
[INFO] [stdout]    |
[INFO] [stdout] 39 | fn hash(key: u64, num_servers: u64, lcng_a: u64) -> (u64) {
[INFO] [stdout]    |                                                     ^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.82s
[INFO] running `Command { std: "docker" "inspect" "e719f181b01052f65cb771768584616f6385b814054fb9096ec3a96fc5391bdc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e719f181b01052f65cb771768584616f6385b814054fb9096ec3a96fc5391bdc", kill_on_drop: false }`
[INFO] [stdout] e719f181b01052f65cb771768584616f6385b814054fb9096ec3a96fc5391bdc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bac9db1a7d73361cd6f35aaf92a9eaece63b55f2eb84b37d4a93284ef445946c
[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" "bac9db1a7d73361cd6f35aaf92a9eaece63b55f2eb84b37d4a93284ef445946c", kill_on_drop: false }`
[INFO] [stderr]    Compiling jump-consistent-hashing v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/main.rs:4:86
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn assign_servers(key: u64, num_servers: u64, copies: usize) -> Result<Vec<u64>, Box<Error>> {
[INFO] [stdout]   |                                                                                      ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/main.rs:39:53
[INFO] [stdout]    |
[INFO] [stdout] 39 | fn hash(key: u64, num_servers: u64, lcng_a: u64) -> (u64) {
[INFO] [stdout]    |                                                     ^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `Command { std: "docker" "inspect" "bac9db1a7d73361cd6f35aaf92a9eaece63b55f2eb84b37d4a93284ef445946c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bac9db1a7d73361cd6f35aaf92a9eaece63b55f2eb84b37d4a93284ef445946c", kill_on_drop: false }`
[INFO] [stdout] bac9db1a7d73361cd6f35aaf92a9eaece63b55f2eb84b37d4a93284ef445946c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 712cf3f45ae658c89e6a158c597636edf12d7965e4870a8a1d3aee2d02daf3e7
[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" "712cf3f45ae658c89e6a158c597636edf12d7965e4870a8a1d3aee2d02daf3e7", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout] running 0 tests
[INFO] [stderr]  --> src/main.rs:4:86
[INFO] [stdout] 
[INFO] [stderr]   |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stderr] 4 | fn assign_servers(key: u64, num_servers: u64, copies: usize) -> Result<Vec<u64>, Box<Error>> {
[INFO] [stdout] 
[INFO] [stderr]   |                                                                                      ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]   --> src/main.rs:39:53
[INFO] [stderr]    |
[INFO] [stderr] 39 | fn hash(key: u64, num_servers: u64, lcng_a: u64) -> (u64) {
[INFO] [stderr]    |                                                     ^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[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/jump_consistent_hashing-cd18e28557d2a22a
[INFO] running `Command { std: "docker" "inspect" "712cf3f45ae658c89e6a158c597636edf12d7965e4870a8a1d3aee2d02daf3e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "712cf3f45ae658c89e6a158c597636edf12d7965e4870a8a1d3aee2d02daf3e7", kill_on_drop: false }`
[INFO] [stdout] 712cf3f45ae658c89e6a158c597636edf12d7965e4870a8a1d3aee2d02daf3e7