[INFO] cloning repository https://github.com/htlsne/library-checker-answers
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/htlsne/library-checker-answers" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhtlsne%2Flibrary-checker-answers", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhtlsne%2Flibrary-checker-answers'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] de084aa31e58cb04a3570ce0777a712fb9ff6779
[INFO] checking htlsne/library-checker-answers against try#b20a093d9fb1ffaa04ae9852cb034864a992bafd for pr-85073
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhtlsne%2Flibrary-checker-answers" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/htlsne/library-checker-answers on toolchain b20a093d9fb1ffaa04ae9852cb034864a992bafd
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/htlsne/library-checker-answers
[INFO] finished tweaking git repo https://github.com/htlsne/library-checker-answers
[INFO] tweaked toml for git repo https://github.com/htlsne/library-checker-answers written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/htlsne/library-checker-answers already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4a81c5a334ebc3342d389404e860b479f6d20f3aa374d43353f639f5369b64f2
[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" "4a81c5a334ebc3342d389404e860b479f6d20f3aa374d43353f639f5369b64f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4a81c5a334ebc3342d389404e860b479f6d20f3aa374d43353f639f5369b64f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a81c5a334ebc3342d389404e860b479f6d20f3aa374d43353f639f5369b64f2", kill_on_drop: false }`
[INFO] [stdout] 4a81c5a334ebc3342d389404e860b479f6d20f3aa374d43353f639f5369b64f2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 57d3e2b834f32dafe6564331e6ab72b4645bea1df2a2de6b98f4c10b1c463b91
[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" "57d3e2b834f32dafe6564331e6ab72b4645bea1df2a2de6b98f4c10b1c463b91", kill_on_drop: false }`
[INFO] [stderr]     Checking library-checker-answers v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `next_vec`
[INFO] [stdout]   --> src/bin/many_aplusb.rs:42:16
[INFO] [stdout]    |
[INFO] [stdout] 42 |         pub fn next_vec<T>(&mut self, n: usize) -> Vec<T>
[INFO] [stdout]    |                ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `chars`
[INFO] [stdout]   --> src/bin/many_aplusb.rs:54:16
[INFO] [stdout]    |
[INFO] [stdout] 54 |         pub fn chars(&mut self) -> Vec<char> {
[INFO] [stdout]    |                ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/bin/template.rs:62:17
[INFO] [stdout]    |
[INFO] [stdout] 62 |             let $single_tt_pat = $crate::read!(from $scanner { $readable });
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `usize1`
[INFO] [stdout]    --> src/bin/template.rs:115:12
[INFO] [stdout]     |
[INFO] [stdout] 115 |     pub fn usize1(n: usize) -> usize {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `bytes`
[INFO] [stdout]    --> src/bin/template.rs:120:12
[INFO] [stdout]     |
[INFO] [stdout] 120 |     pub fn bytes(s: String) -> Vec<u8> {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `next_vec`
[INFO] [stdout]   --> src/bin/associative_array.rs:57:16
[INFO] [stdout]    |
[INFO] [stdout] 57 |         pub fn next_vec<T>(&mut self, n: usize) -> Vec<T>
[INFO] [stdout]    |                ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `chars`
[INFO] [stdout]   --> src/bin/associative_array.rs:69:16
[INFO] [stdout]    |
[INFO] [stdout] 69 |         pub fn chars(&mut self) -> Vec<char> {
[INFO] [stdout]    |                ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/bin/template.rs:62:17
[INFO] [stdout]    |
[INFO] [stdout] 62 |             let $single_tt_pat = $crate::read!(from $scanner { $readable });
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `usize1`
[INFO] [stdout]    --> src/bin/template.rs:115:12
[INFO] [stdout]     |
[INFO] [stdout] 115 |     pub fn usize1(n: usize) -> usize {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `bytes`
[INFO] [stdout]    --> src/bin/template.rs:120:12
[INFO] [stdout]     |
[INFO] [stdout] 120 |     pub fn bytes(s: String) -> Vec<u8> {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `next_vec`
[INFO] [stdout]   --> src/bin/associative_array.rs:57:16
[INFO] [stdout]    |
[INFO] [stdout] 57 |         pub fn next_vec<T>(&mut self, n: usize) -> Vec<T>
[INFO] [stdout]    |                ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `chars`
[INFO] [stdout]   --> src/bin/associative_array.rs:69:16
[INFO] [stdout]    |
[INFO] [stdout] 69 |         pub fn chars(&mut self) -> Vec<char> {
[INFO] [stdout]    |                ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `usize1`
[INFO] [stdout]    --> src/bin/unionfind.rs:222:12
[INFO] [stdout]     |
[INFO] [stdout] 222 |     pub fn usize1(n: usize) -> usize {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `bytes`
[INFO] [stdout]    --> src/bin/unionfind.rs:227:12
[INFO] [stdout]     |
[INFO] [stdout] 227 |     pub fn bytes(s: String) -> Vec<u8> {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `next_vec`
[INFO] [stdout]   --> src/bin/many_aplusb.rs:42:16
[INFO] [stdout]    |
[INFO] [stdout] 42 |         pub fn next_vec<T>(&mut self, n: usize) -> Vec<T>
[INFO] [stdout]    |                ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `chars`
[INFO] [stdout]   --> src/bin/many_aplusb.rs:54:16
[INFO] [stdout]    |
[INFO] [stdout] 54 |         pub fn chars(&mut self) -> Vec<char> {
[INFO] [stdout]    |                ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[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] [stdout] warning: function is never used: `usize1`
[INFO] [stdout]    --> src/bin/unionfind.rs:222:12
[INFO] [stdout]     |
[INFO] [stdout] 222 |     pub fn usize1(n: usize) -> usize {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `bytes`
[INFO] [stdout]    --> src/bin/unionfind.rs:227:12
[INFO] [stdout]     |
[INFO] [stdout] 227 |     pub fn bytes(s: String) -> Vec<u8> {
[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 1.38s
[INFO] running `Command { std: "docker" "inspect" "57d3e2b834f32dafe6564331e6ab72b4645bea1df2a2de6b98f4c10b1c463b91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "57d3e2b834f32dafe6564331e6ab72b4645bea1df2a2de6b98f4c10b1c463b91", kill_on_drop: false }`
[INFO] [stdout] 57d3e2b834f32dafe6564331e6ab72b4645bea1df2a2de6b98f4c10b1c463b91