[INFO] cloning repository https://github.com/williamhammond/leet_code
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/williamhammond/leet_code" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwilliamhammond%2Fleet_code", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwilliamhammond%2Fleet_code'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] eadcbed07f40d11b6edac79b7247a1c148492ad5
[INFO] checking williamhammond/leet_code against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwilliamhammond%2Fleet_code" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/williamhammond/leet_code on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/williamhammond/leet_code
[INFO] finished tweaking git repo https://github.com/williamhammond/leet_code
[INFO] tweaked toml for git repo https://github.com/williamhammond/leet_code written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/williamhammond/leet_code already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 636e6bf60755ba7716d366fc3f12e89a4fb9b9aa5d99fdf9f436cc26764659b0
[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" "636e6bf60755ba7716d366fc3f12e89a4fb9b9aa5d99fdf9f436cc26764659b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "636e6bf60755ba7716d366fc3f12e89a4fb9b9aa5d99fdf9f436cc26764659b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "636e6bf60755ba7716d366fc3f12e89a4fb9b9aa5d99fdf9f436cc26764659b0", kill_on_drop: false }`
[INFO] [stdout] 636e6bf60755ba7716d366fc3f12e89a4fb9b9aa5d99fdf9f436cc26764659b0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 2be6106a1125282ffd3e7cbe9a3c2433cae3065301584fe5a9cff1cc554c2acd
[INFO] running `Command { std: "docker" "start" "-a" "2be6106a1125282ffd3e7cbe9a3c2433cae3065301584fe5a9cff1cc554c2acd", kill_on_drop: false }`
[INFO] [stderr]     Checking leet_code v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: couldn't read minimum_window_substring/src/test.rs: No such file or directory (os error 2)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: couldn't read minimum_window_substring/src/test.rs: No such file or directory (os error 2)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: couldn't read fancy_sequence/src/test.rs: No such file or directory (os error 2)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: couldn't read fancy_sequence/src/test.rs: No such file or directory (os error 2)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `leet_code`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `MOD`
[INFO] [stdout]  --> fancy_sequence/src/main.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | const MOD: usize = 1000000007;
[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: `new`
[INFO] [stdout]   --> fancy_sequence/src/main.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn new() -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `append`
[INFO] [stdout]   --> fancy_sequence/src/main.rs:28:8
[INFO] [stdout]    |
[INFO] [stdout] 28 |     fn append(&self, val: i32) {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_all`
[INFO] [stdout]   --> fancy_sequence/src/main.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 |     fn add_all(&mut self, inc: i32) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `mult_all`
[INFO] [stdout]   --> fancy_sequence/src/main.rs:36:8
[INFO] [stdout]    |
[INFO] [stdout] 36 |     fn mult_all(&mut self, m: i32) {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_index`
[INFO] [stdout]   --> fancy_sequence/src/main.rs:41:8
[INFO] [stdout]    |
[INFO] [stdout] 41 |     fn get_index(&self, idx: i32) -> i32 {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `pow_mod`
[INFO] [stdout]   --> fancy_sequence/src/main.rs:51:8
[INFO] [stdout]    |
[INFO] [stdout] 51 |     fn pow_mod(&self, base: usize, exp: usize, modulo: usize) -> usize {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `mod_mult`
[INFO] [stdout]   --> fancy_sequence/src/main.rs:75:8
[INFO] [stdout]    |
[INFO] [stdout] 75 |     fn mod_mult(&self, a: usize , b: usize, m: usize) -> usize {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]   --> fancy_sequence/src/main.rs:53:17
[INFO] [stdout]    |
[INFO] [stdout] 53 |         assert!(exp >= 0);
[INFO] [stdout]    |                 ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_comparisons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> fancy_sequence/src/tests.rs:7:13
[INFO] [stdout]   |
[INFO] [stdout] 7 |         let mut fancy = Fancy::new();
[INFO] [stdout]   |             ----^^^^^
[INFO] [stdout]   |             |
[INFO] [stdout]   |             help: remove this `mut`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]   --> fancy_sequence/src/main.rs:53:17
[INFO] [stdout]    |
[INFO] [stdout] 53 |         assert!(exp >= 0);
[INFO] [stdout]    |                 ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_comparisons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Solution`
[INFO] [stdout]  --> minimum_window_substring/src/main.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | struct Solution{}
[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: `min_window`
[INFO] [stdout]   --> minimum_window_substring/src/main.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub fn min_window(s: String, t: String) -> String {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "2be6106a1125282ffd3e7cbe9a3c2433cae3065301584fe5a9cff1cc554c2acd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2be6106a1125282ffd3e7cbe9a3c2433cae3065301584fe5a9cff1cc554c2acd", kill_on_drop: false }`
[INFO] [stdout] 2be6106a1125282ffd3e7cbe9a3c2433cae3065301584fe5a9cff1cc554c2acd