[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] testing williamhammond/leet_code against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwilliamhammond%2Fleet_code" "/workspace/builds/worker-116/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-116/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/williamhammond/leet_code on toolchain 62efba8a050c64249dab942951bb28f710208bc8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", 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-116/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" "+62efba8a050c64249dab942951bb28f710208bc8" "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-116/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-116/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0be2657817b9a1128f8b389c77d03b62696b08dfc372af1bd17416835f899540
[INFO] running `Command { std: "docker" "start" "-a" "0be2657817b9a1128f8b389c77d03b62696b08dfc372af1bd17416835f899540", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0be2657817b9a1128f8b389c77d03b62696b08dfc372af1bd17416835f899540", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0be2657817b9a1128f8b389c77d03b62696b08dfc372af1bd17416835f899540", kill_on_drop: false }`
[INFO] [stdout] 0be2657817b9a1128f8b389c77d03b62696b08dfc372af1bd17416835f899540
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-116/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-116/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 615ba4368a9598a5c085c0bc372e812f921039d9c0266592c94c0b317c1172d3
[INFO] running `Command { std: "docker" "start" "-a" "615ba4368a9598a5c085c0bc372e812f921039d9c0266592c94c0b317c1172d3", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling leet_code v0.1.0 (/opt/rustwide/workdir)
[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] [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: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `leet_code` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[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: 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: field is never read: `seq`
[INFO] [stdout]   --> fancy_sequence/src/main.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     seq: RefCell<Vec<(usize, usize, usize)>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `inc`
[INFO] [stdout]   --> fancy_sequence/src/main.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     inc: usize,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `mult`
[INFO] [stdout]   --> fancy_sequence/src/main.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     mult: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^
[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: 12 warnings emitted
[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" "615ba4368a9598a5c085c0bc372e812f921039d9c0266592c94c0b317c1172d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "615ba4368a9598a5c085c0bc372e812f921039d9c0266592c94c0b317c1172d3", kill_on_drop: false }`
[INFO] [stdout] 615ba4368a9598a5c085c0bc372e812f921039d9c0266592c94c0b317c1172d3