[INFO] cloning repository https://github.com/detoxifiedplant/exercism-dsa
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/detoxifiedplant/exercism-dsa" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdetoxifiedplant%2Fexercism-dsa", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdetoxifiedplant%2Fexercism-dsa'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 24e5d0de7901a5a3c1fc0aeaebb1b23740872a1e
[INFO] checking detoxifiedplant/exercism-dsa against try#012cd62c9add58ab3910e44c137d87db3ab70f61 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdetoxifiedplant%2Fexercism-dsa" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/detoxifiedplant/exercism-dsa
[INFO] finished tweaking git repo https://github.com/detoxifiedplant/exercism-dsa
[INFO] tweaked toml for git repo https://github.com/detoxifiedplant/exercism-dsa written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/detoxifiedplant/exercism-dsa on toolchain 012cd62c9add58ab3910e44c137d87db3ab70f61
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/detoxifiedplant/exercism-dsa already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded unicode-ident v1.0.15
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 761cf7c8022794f0a457c6d8b966399994e536caea1f152e6816a2f866f9ccf5
[INFO] running `Command { std: "docker" "start" "-a" "761cf7c8022794f0a457c6d8b966399994e536caea1f152e6816a2f866f9ccf5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "761cf7c8022794f0a457c6d8b966399994e536caea1f152e6816a2f866f9ccf5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "761cf7c8022794f0a457c6d8b966399994e536caea1f152e6816a2f866f9ccf5", kill_on_drop: false }`
[INFO] [stdout] 761cf7c8022794f0a457c6d8b966399994e536caea1f152e6816a2f866f9ccf5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 264eecd07ce2bbe270c07c7e7845dfc1a888bf058e559624d11a778097f670ac
[INFO] running `Command { std: "docker" "start" "-a" "264eecd07ce2bbe270c07c7e7845dfc1a888bf058e559624d11a778097f670ac", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.93
[INFO] [stderr]    Compiling unicode-ident v1.0.15
[INFO] [stderr]    Compiling libc v0.2.169
[INFO] [stderr]     Checking memchr v2.7.4
[INFO] [stderr]    Compiling thiserror v2.0.11
[INFO] [stderr]     Checking either v1.13.0
[INFO] [stderr]     Checking bitflags v2.8.0
[INFO] [stderr]     Checking challenges v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking itertools v0.13.0
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]    Compiling quote v1.0.38
[INFO] [stderr]    Compiling syn v2.0.96
[INFO] [stderr]     Checking epoll v0.1.0 (/opt/rustwide/workdir/crates/epoll)
[INFO] [stdout] warning: enum `ControlOptions` is never used
[INFO] [stdout]   --> crates/epoll/src/poll.rs:14:10
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub enum ControlOptions {
[INFO] [stdout]    |          ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Event` is never constructed
[INFO] [stdout]    --> crates/epoll/src/poll.rs:107:12
[INFO] [stdout]     |
[INFO] [stdout] 107 | pub struct Event {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> crates/epoll/src/poll.rs:113:12
[INFO] [stdout]     |
[INFO] [stdout] 112 | impl Event {
[INFO] [stdout]     | ---------- associated function in this implementation
[INFO] [stdout] 113 |     pub fn new(events: Events, data: u64) -> Event {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `create` is never used
[INFO] [stdout]    --> crates/epoll/src/poll.rs:138:8
[INFO] [stdout]     |
[INFO] [stdout] 138 | pub fn create(cloexec: bool) -> io::Result<RawFd> {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `ctl` is never used
[INFO] [stdout]    --> crates/epoll/src/poll.rs:144:8
[INFO] [stdout]     |
[INFO] [stdout] 144 | pub fn ctl(
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `wait` is never used
[INFO] [stdout]    --> crates/epoll/src/poll.rs:160:8
[INFO] [stdout]     |
[INFO] [stdout] 160 | pub fn wait(epfd: RawFd, timeout: i32, buf: &mut [Event]) -> io::Result<usize> {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `close` is never used
[INFO] [stdout]    --> crates/epoll/src/poll.rs:174:8
[INFO] [stdout]     |
[INFO] [stdout] 174 | pub fn close(epfd: RawFd) -> io::Result<()> {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `cvt` is never used
[INFO] [stdout]    --> crates/epoll/src/poll.rs:179:4
[INFO] [stdout]     |
[INFO] [stdout] 179 | fn cvt(result: libc::c_int) -> io::Result<libc::c_int> {
[INFO] [stdout]     |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `ControlOptions` is never used
[INFO] [stdout]   --> crates/epoll/src/poll.rs:14:10
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub enum ControlOptions {
[INFO] [stdout]    |          ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Event` is never constructed
[INFO] [stdout]    --> crates/epoll/src/poll.rs:107:12
[INFO] [stdout]     |
[INFO] [stdout] 107 | pub struct Event {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> crates/epoll/src/poll.rs:113:12
[INFO] [stdout]     |
[INFO] [stdout] 112 | impl Event {
[INFO] [stdout]     | ---------- associated function in this implementation
[INFO] [stdout] 113 |     pub fn new(events: Events, data: u64) -> Event {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `create` is never used
[INFO] [stdout]    --> crates/epoll/src/poll.rs:138:8
[INFO] [stdout]     |
[INFO] [stdout] 138 | pub fn create(cloexec: bool) -> io::Result<RawFd> {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `ctl` is never used
[INFO] [stdout]    --> crates/epoll/src/poll.rs:144:8
[INFO] [stdout]     |
[INFO] [stdout] 144 | pub fn ctl(
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `wait` is never used
[INFO] [stdout]    --> crates/epoll/src/poll.rs:160:8
[INFO] [stdout]     |
[INFO] [stdout] 160 | pub fn wait(epfd: RawFd, timeout: i32, buf: &mut [Event]) -> io::Result<usize> {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `close` is never used
[INFO] [stdout]    --> crates/epoll/src/poll.rs:174:8
[INFO] [stdout]     |
[INFO] [stdout] 174 | pub fn close(epfd: RawFd) -> io::Result<()> {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `cvt` is never used
[INFO] [stdout]    --> crates/epoll/src/poll.rs:179:4
[INFO] [stdout]     |
[INFO] [stdout] 179 | fn cvt(result: libc::c_int) -> io::Result<libc::c_int> {
[INFO] [stdout]     |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking regex-automata v0.4.9
[INFO] [stderr]    Compiling thiserror-impl v2.0.11
[INFO] [stderr]     Checking regex v1.11.1
[INFO] [stderr]     Checking exercism v0.1.0 (/opt/rustwide/workdir/crates/exercism)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.95s
[INFO] running `Command { std: "docker" "inspect" "264eecd07ce2bbe270c07c7e7845dfc1a888bf058e559624d11a778097f670ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "264eecd07ce2bbe270c07c7e7845dfc1a888bf058e559624d11a778097f670ac", kill_on_drop: false }`
[INFO] [stdout] 264eecd07ce2bbe270c07c7e7845dfc1a888bf058e559624d11a778097f670ac
