[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] testing htlsne/library-checker-answers against master#414482f6a0d4e7290f614300581a0b55442552a3 for pr-140985
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhtlsne%2Flibrary-checker-answers" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/htlsne/library-checker-answers on toolchain 414482f6a0d4e7290f614300581a0b55442552a3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+414482f6a0d4e7290f614300581a0b55442552a3" "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-4-tc1/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: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+414482f6a0d4e7290f614300581a0b55442552a3" "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-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+414482f6a0d4e7290f614300581a0b55442552a3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8446c1a98ab10a2d1aca3275999d69da70bdcc7a44e3c37882546333d6fb91e3
[INFO] running `Command { std: "docker" "start" "-a" "8446c1a98ab10a2d1aca3275999d69da70bdcc7a44e3c37882546333d6fb91e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8446c1a98ab10a2d1aca3275999d69da70bdcc7a44e3c37882546333d6fb91e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8446c1a98ab10a2d1aca3275999d69da70bdcc7a44e3c37882546333d6fb91e3", kill_on_drop: false }`
[INFO] [stdout] 8446c1a98ab10a2d1aca3275999d69da70bdcc7a44e3c37882546333d6fb91e3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+414482f6a0d4e7290f614300581a0b55442552a3" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a520191136569638fa083fcb4a9f7387f32b116ff586444640824f82de21c0a2
[INFO] running `Command { std: "docker" "start" "-a" "a520191136569638fa083fcb4a9f7387f32b116ff586444640824f82de21c0a2", kill_on_drop: false }`
[INFO] [stderr]    Compiling library-checker-answers v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: methods `next_vec` and `chars` are never used
[INFO] [stdout]   --> src/bin/many_aplusb.rs:42:16
[INFO] [stdout]    |
[INFO] [stdout] 27 |     impl<'a> Scanner<'a> {
[INFO] [stdout]    |     -------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 42 |         pub fn next_vec<T>(&mut self, n: usize) -> Vec<T>
[INFO] [stdout]    |                ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 54 |         pub fn chars(&mut self) -> Vec<char> {
[INFO] [stdout]    |                ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[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: methods `next_vec` and `chars` are never used
[INFO] [stdout]   --> src/bin/associative_array.rs:57:16
[INFO] [stdout]    |
[INFO] [stdout] 42 |     impl<'a> Scanner<'a> {
[INFO] [stdout]    |     -------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 57 |         pub fn next_vec<T>(&mut self, n: usize) -> Vec<T>
[INFO] [stdout]    |                ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 69 |         pub fn chars(&mut self) -> Vec<char> {
[INFO] [stdout]    |                ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `usize1` is never used
[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 `bytes` is never used
[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 `call_once_from_reader` is never used
[INFO] [stdout]    --> src/bin/template.rs:127:12
[INFO] [stdout]     |
[INFO] [stdout] 125 |     pub trait FnOnceExt<A> {
[INFO] [stdout]     |               --------- associated function in this trait
[INFO] [stdout] 126 |         type Output;
[INFO] [stdout] 127 |         fn call_once_from_reader(this: Self, scanner: &mut Scanner) -> Self::Output;
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `usize1` is never used
[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 `bytes` is never used
[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 `call_once_from_reader` is never used
[INFO] [stdout]    --> src/bin/unionfind.rs:234:12
[INFO] [stdout]     |
[INFO] [stdout] 232 |     pub trait FnOnceExt<A> {
[INFO] [stdout]     |               --------- associated function in this trait
[INFO] [stdout] 233 |         type Output;
[INFO] [stdout] 234 |         fn call_once_from_reader(this: Self, scanner: &mut Scanner) -> Self::Output;
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.26s
[INFO] running `Command { std: "docker" "inspect" "a520191136569638fa083fcb4a9f7387f32b116ff586444640824f82de21c0a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a520191136569638fa083fcb4a9f7387f32b116ff586444640824f82de21c0a2", kill_on_drop: false }`
[INFO] [stdout] a520191136569638fa083fcb4a9f7387f32b116ff586444640824f82de21c0a2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+414482f6a0d4e7290f614300581a0b55442552a3" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8c96790b2aa881768214c59eb8c83044caeaf5521ae99de4c61f1337486c9ba6
[INFO] running `Command { std: "docker" "start" "-a" "8c96790b2aa881768214c59eb8c83044caeaf5521ae99de4c61f1337486c9ba6", kill_on_drop: false }`
[INFO] [stderr]    Compiling library-checker-answers v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: methods `next_vec` and `chars` are never used
[INFO] [stdout]   --> src/bin/many_aplusb.rs:42:16
[INFO] [stdout]    |
[INFO] [stdout] 27 |     impl<'a> Scanner<'a> {
[INFO] [stdout]    |     -------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 42 |         pub fn next_vec<T>(&mut self, n: usize) -> Vec<T>
[INFO] [stdout]    |                ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 54 |         pub fn chars(&mut self) -> Vec<char> {
[INFO] [stdout]    |                ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `next_vec` and `chars` are never used
[INFO] [stdout]   --> src/bin/associative_array.rs:57:16
[INFO] [stdout]    |
[INFO] [stdout] 42 |     impl<'a> Scanner<'a> {
[INFO] [stdout]    |     -------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 57 |         pub fn next_vec<T>(&mut self, n: usize) -> Vec<T>
[INFO] [stdout]    |                ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 69 |         pub fn chars(&mut self) -> Vec<char> {
[INFO] [stdout]    |                ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[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 `usize1` is never used
[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 `bytes` is never used
[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 `call_once_from_reader` is never used
[INFO] [stdout]    --> src/bin/template.rs:127:12
[INFO] [stdout]     |
[INFO] [stdout] 125 |     pub trait FnOnceExt<A> {
[INFO] [stdout]     |               --------- associated function in this trait
[INFO] [stdout] 126 |         type Output;
[INFO] [stdout] 127 |         fn call_once_from_reader(this: Self, scanner: &mut Scanner) -> Self::Output;
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `usize1` is never used
[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 `bytes` is never used
[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 `call_once_from_reader` is never used
[INFO] [stdout]    --> src/bin/unionfind.rs:234:12
[INFO] [stdout]     |
[INFO] [stdout] 232 |     pub trait FnOnceExt<A> {
[INFO] [stdout]     |               --------- associated function in this trait
[INFO] [stdout] 233 |         type Output;
[INFO] [stdout] 234 |         fn call_once_from_reader(this: Self, scanner: &mut Scanner) -> Self::Output;
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.26s
[INFO] running `Command { std: "docker" "inspect" "8c96790b2aa881768214c59eb8c83044caeaf5521ae99de4c61f1337486c9ba6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c96790b2aa881768214c59eb8c83044caeaf5521ae99de4c61f1337486c9ba6", kill_on_drop: false }`
[INFO] [stdout] 8c96790b2aa881768214c59eb8c83044caeaf5521ae99de4c61f1337486c9ba6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+414482f6a0d4e7290f614300581a0b55442552a3" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 739658721f72e139453ce435cd4e97a5e1ead5ba93db35827a8ed2591c388bdd
[INFO] running `Command { std: "docker" "start" "-a" "739658721f72e139453ce435cd4e97a5e1ead5ba93db35827a8ed2591c388bdd", kill_on_drop: false }`
[INFO] [stderr] warning: function `usize1` is never used
[INFO] [stderr]    --> src/bin/unionfind.rs:222:12
[INFO] [stderr]     |
[INFO] [stderr] 222 |     pub fn usize1(n: usize) -> usize {
[INFO] [stderr]     |            ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `bytes` is never used
[INFO] [stderr]    --> src/bin/unionfind.rs:227:12
[INFO] [stderr]     |
[INFO] [stderr] 227 |     pub fn bytes(s: String) -> Vec<u8> {
[INFO] [stderr]     |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `call_once_from_reader` is never used
[INFO] [stderr]    --> src/bin/unionfind.rs:234:12
[INFO] [stderr]     |
[INFO] [stderr] 232 |     pub trait FnOnceExt<A> {
[INFO] [stderr]     |               --------- associated function in this trait
[INFO] [stderr] 233 |         type Output;
[INFO] [stderr] 234 |         fn call_once_from_reader(this: Self, scanner: &mut Scanner) -> Self::Output;
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `library-checker-answers` (bin "unionfind" test) generated 3 warnings
[INFO] [stderr] warning: methods `next_vec` and `chars` are never used
[INFO] [stderr]   --> src/bin/many_aplusb.rs:42:16
[INFO] [stderr]    |
[INFO] [stderr] 27 |     impl<'a> Scanner<'a> {
[INFO] [stderr]    |     -------------------- methods in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 42 |         pub fn next_vec<T>(&mut self, n: usize) -> Vec<T>
[INFO] [stderr]    |                ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 54 |         pub fn chars(&mut self) -> Vec<char> {
[INFO] [stderr]    |                ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `library-checker-answers` (bin "many_aplusb" test) generated 1 warning
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]   --> src/bin/template.rs:62:17
[INFO] [stderr]    |
[INFO] [stderr] 62 |             let $single_tt_pat = $crate::read!(from $scanner { $readable });
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `usize1` is never used
[INFO] [stderr]    --> src/bin/template.rs:115:12
[INFO] [stderr]     |
[INFO] [stderr] 115 |     pub fn usize1(n: usize) -> usize {
[INFO] [stderr]     |            ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `bytes` is never used
[INFO] [stderr]    --> src/bin/template.rs:120:12
[INFO] [stderr]     |
[INFO] [stderr] 120 |     pub fn bytes(s: String) -> Vec<u8> {
[INFO] [stderr]     |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `call_once_from_reader` is never used
[INFO] [stderr]    --> src/bin/template.rs:127:12
[INFO] [stderr]     |
[INFO] [stderr] 125 |     pub trait FnOnceExt<A> {
[INFO] [stderr]     |               --------- associated function in this trait
[INFO] [stderr] 126 |         type Output;
[INFO] [stderr] 127 |         fn call_once_from_reader(this: Self, scanner: &mut Scanner) -> Self::Output;
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `library-checker-answers` (bin "template" test) generated 4 warnings
[INFO] [stderr] warning: methods `next_vec` and `chars` are never used
[INFO] [stderr]   --> src/bin/associative_array.rs:57:16
[INFO] [stderr]    |
[INFO] [stderr] 42 |     impl<'a> Scanner<'a> {
[INFO] [stderr]    |     -------------------- methods in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 57 |         pub fn next_vec<T>(&mut self, n: usize) -> Vec<T>
[INFO] [stderr]    |                ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 69 |         pub fn chars(&mut self) -> Vec<char> {
[INFO] [stderr]    |                ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `library-checker-answers` (bin "associative_array" test) generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/bin/associative_array.rs (/opt/rustwide/target/debug/deps/associative_array-de2f383d13799c79)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/many_aplusb.rs (/opt/rustwide/target/debug/deps/many_aplusb-e5394595e68c40ec)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/template.rs (/opt/rustwide/target/debug/deps/template-a783ed3d0f55dbf2)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests src/bin/unionfind.rs (/opt/rustwide/target/debug/deps/unionfind-56e1be3a6eff08b4)
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test dsu::tests::dsu_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "739658721f72e139453ce435cd4e97a5e1ead5ba93db35827a8ed2591c388bdd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "739658721f72e139453ce435cd4e97a5e1ead5ba93db35827a8ed2591c388bdd", kill_on_drop: false }`
[INFO] [stdout] 739658721f72e139453ce435cd4e97a5e1ead5ba93db35827a8ed2591c388bdd