[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 master#33fdb797f59421c7bbecaa4588ed5d7a31a9494a for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhtlsne%2Flibrary-checker-answers" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/htlsne/library-checker-answers on toolchain 33fdb797f59421c7bbecaa4588ed5d7a31a9494a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "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-11/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" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "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] running `Command { std: "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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 177bb9867bba6d4e07a39c6fe8c96786f3031a170820b3379b1f5cab3fdb9607
[INFO] running `Command { std: "docker" "start" "-a" "177bb9867bba6d4e07a39c6fe8c96786f3031a170820b3379b1f5cab3fdb9607", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "177bb9867bba6d4e07a39c6fe8c96786f3031a170820b3379b1f5cab3fdb9607", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "177bb9867bba6d4e07a39c6fe8c96786f3031a170820b3379b1f5cab3fdb9607", kill_on_drop: false }`
[INFO] [stdout] 177bb9867bba6d4e07a39c6fe8c96786f3031a170820b3379b1f5cab3fdb9607
[INFO] running `Command { std: "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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 97adb8e1d9e089db94cb186b3e6fbd2a77343213c06a80d81cd451663751a2e2
[INFO] running `Command { std: "docker" "start" "-a" "97adb8e1d9e089db94cb186b3e6fbd2a77343213c06a80d81cd451663751a2e2", kill_on_drop: false }`
[INFO] [stderr]     Checking library-checker-answers v0.1.0 (/opt/rustwide/workdir)
[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/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: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 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: 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: 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: 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: 2 warnings emitted
[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: 3 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] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.43s
[INFO] running `Command { std: "docker" "inspect" "97adb8e1d9e089db94cb186b3e6fbd2a77343213c06a80d81cd451663751a2e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97adb8e1d9e089db94cb186b3e6fbd2a77343213c06a80d81cd451663751a2e2", kill_on_drop: false }`
[INFO] [stdout] 97adb8e1d9e089db94cb186b3e6fbd2a77343213c06a80d81cd451663751a2e2