[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] checking wspeirs/jump-consistent-hashing against try#378b6a8a384b3bd0818af5f1745e5747a98bff7b for pr-95819
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwspeirs%2Fjump-consistent-hashing" "/workspace/builds/worker-105/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-105/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/wspeirs/jump-consistent-hashing on toolchain 378b6a8a384b3bd0818af5f1745e5747a98bff7b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+378b6a8a384b3bd0818af5f1745e5747a98bff7b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", 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-105/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" "+378b6a8a384b3bd0818af5f1745e5747a98bff7b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+378b6a8a384b3bd0818af5f1745e5747a98bff7b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ad80c6ffdac6ea7eaded9bd820c49c2524ed057a5e552c130caa4f6dcb264f08
[INFO] running `Command { std: "docker" "start" "-a" "ad80c6ffdac6ea7eaded9bd820c49c2524ed057a5e552c130caa4f6dcb264f08", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ad80c6ffdac6ea7eaded9bd820c49c2524ed057a5e552c130caa4f6dcb264f08", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad80c6ffdac6ea7eaded9bd820c49c2524ed057a5e552c130caa4f6dcb264f08", kill_on_drop: false }`
[INFO] [stdout] ad80c6ffdac6ea7eaded9bd820c49c2524ed057a5e552c130caa4f6dcb264f08
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+378b6a8a384b3bd0818af5f1745e5747a98bff7b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0b8bb41d05fd1e4be95ac54d2895660e89dc3c5f49962f8263703279ee613de3
[INFO] running `Command { std: "docker" "start" "-a" "0b8bb41d05fd1e4be95ac54d2895660e89dc3c5f49962f8263703279ee613de3", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking jump-consistent-hashing v0.1.0 (/opt/rustwide/workdir)
[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]    |                                                     ^   ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 39 - fn hash(key: u64, num_servers: u64, lcng_a: u64) -> (u64) {
[INFO] [stdout] 39 + fn hash(key: u64, num_servers: u64, lcng_a: u64) -> u64 {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[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]   |                                                                                      ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 4 - fn assign_servers(key: u64, num_servers: u64, copies: usize) -> Result<Vec<u64>, Box<Error>> {
[INFO] [stdout] 4 + fn assign_servers(key: u64, num_servers: u64, copies: usize) -> Result<Vec<u64>, Box<dyn Error>> {
[INFO] [stdout]   | 
[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]    |                                                     ^   ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 39 - fn hash(key: u64, num_servers: u64, lcng_a: u64) -> (u64) {
[INFO] [stdout] 39 + fn hash(key: u64, num_servers: u64, lcng_a: u64) -> u64 {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[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]   |                                                                                      ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 4 - fn assign_servers(key: u64, num_servers: u64, copies: usize) -> Result<Vec<u64>, Box<Error>> {
[INFO] [stdout] 4 + fn assign_servers(key: u64, num_servers: u64, copies: usize) -> Result<Vec<u64>, Box<dyn Error>> {
[INFO] [stdout]   | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 45.68s
[INFO] running `Command { std: "docker" "inspect" "0b8bb41d05fd1e4be95ac54d2895660e89dc3c5f49962f8263703279ee613de3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b8bb41d05fd1e4be95ac54d2895660e89dc3c5f49962f8263703279ee613de3", kill_on_drop: false }`
[INFO] [stdout] 0b8bb41d05fd1e4be95ac54d2895660e89dc3c5f49962f8263703279ee613de3