[INFO] cloning repository https://github.com/safrannn/leetcode_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/safrannn/leetcode_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsafrannn%2Fleetcode_rust", kill_on_drop: false }`
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[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 505b16519564b68d159a4f191151a0b9c0c72d17
[INFO] checking safrannn/leetcode_rust against try#7424ce9ff9baac3e9d9f5dd3c85828cddea0134d for pr-136776-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsafrannn%2Fleetcode_rust" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/safrannn/leetcode_rust
[INFO] finished tweaking git repo https://github.com/safrannn/leetcode_rust
[INFO] tweaked toml for git repo https://github.com/safrannn/leetcode_rust written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/safrannn/leetcode_rust on toolchain 7424ce9ff9baac3e9d9f5dd3c85828cddea0134d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7424ce9ff9baac3e9d9f5dd3c85828cddea0134d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/safrannn/leetcode_rust 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" "+7424ce9ff9baac3e9d9f5dd3c85828cddea0134d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+7424ce9ff9baac3e9d9f5dd3c85828cddea0134d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0ee59e4f39bf64dd0a0885ba1d4ae958233b8e9a131047d91affc2f323555749
[INFO] running `Command { std: "docker" "start" "-a" "0ee59e4f39bf64dd0a0885ba1d4ae958233b8e9a131047d91affc2f323555749", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0ee59e4f39bf64dd0a0885ba1d4ae958233b8e9a131047d91affc2f323555749", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+7424ce9ff9baac3e9d9f5dd3c85828cddea0134d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e13d3469d71bd6c35e74984ac0f295afb30f6254f61010feb835fcfc10fa895b
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[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling cc v1.0.72
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling regex-syntax v0.6.25
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[INFO] [stderr]    Compiling ansi_term v0.12.1
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[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
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[INFO] [stderr]    Compiling lazycell v1.3.0
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[INFO] [stderr]    Compiling atty v0.2.14
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[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling libloading v0.5.2
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[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling cexpr v0.4.0
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling leetcode_test v0.1.2
[INFO] [stderr]     Checking leetcode_prelude v0.2.3
[INFO] [stderr]    Compiling gvc-sys v0.1.1
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[INFO] [stdout] error[E0583]: file not found for module `_1207_unique_number_of_occurrences`
[INFO] [stdout]    --> src/lib.rs:309:1
[INFO] [stdout]     |
[INFO] [stdout] 309 | mod _1207_unique_number_of_occurrences;
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: to create the module `_1207_unique_number_of_occurrences`, create file "src/_1207_unique_number_of_occurrences.rs" or "src/_1207_unique_number_of_occurrences/mod.rs"
[INFO] [stdout]     = note: if there is a `mod _1207_unique_number_of_occurrences` elsewhere in the crate already, import it with `use crate::...` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0583]: file not found for module `_1207_unique_number_of_occurrences`
[INFO] [stdout]    --> src/lib.rs:309:1
[INFO] [stdout]     |
[INFO] [stdout] 309 | mod _1207_unique_number_of_occurrences;
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: to create the module `_1207_unique_number_of_occurrences`, create file "src/_1207_unique_number_of_occurrences.rs" or "src/_1207_unique_number_of_occurrences/mod.rs"
[INFO] [stdout]     = note: if there is a `mod _1207_unique_number_of_occurrences` elsewhere in the crate already, import it with `use crate::...` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/_0031_next_permutation.rs:26:43
[INFO] [stdout]    |
[INFO] [stdout] 26 |     assert_eq!(Solution::next_permutation(vec![1, 2, 3]), vec![1, 3, 2]);
[INFO] [stdout]    |                -------------------------- ^^^^^^^^^^^^^ expected `&mut Vec<i32>`, found `Vec<{integer}>`
[INFO] [stdout]    |                |
[INFO] [stdout]    |                arguments to this function are incorrect
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected mutable reference `&mut Vec<i32>`
[INFO] [stdout]                          found struct `Vec<{integer}>`
[INFO] [stdout] note: associated function defined here
[INFO] [stdout]   --> src/_0031_next_permutation.rs:4:12
[INFO] [stdout]    |
[INFO] [stdout]  4 |     pub fn next_permutation(nums: &mut Vec<i32>) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^ -------------------
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/_0031_next_permutation.rs:26:59
[INFO] [stdout]    |
[INFO] [stdout] 26 |     assert_eq!(Solution::next_permutation(vec![1, 2, 3]), vec![1, 3, 2]);
[INFO] [stdout]    |                                                           ^^^^^^^^^^^^^ expected `()`, found `Vec<{integer}>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected unit type `()`
[INFO] [stdout]                  found struct `Vec<{integer}>`
[INFO] [stdout]    = note: this error originates in the macro `vec` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/_0031_next_permutation.rs:27:43
[INFO] [stdout]    |
[INFO] [stdout] 27 |     assert_eq!(Solution::next_permutation(vec![3, 2, 1]), vec![1, 2, 3]);
[INFO] [stdout]    |                -------------------------- ^^^^^^^^^^^^^ expected `&mut Vec<i32>`, found `Vec<{integer}>`
[INFO] [stdout]    |                |
[INFO] [stdout]    |                arguments to this function are incorrect
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected mutable reference `&mut Vec<i32>`
[INFO] [stdout]                          found struct `Vec<{integer}>`
[INFO] [stdout] note: associated function defined here
[INFO] [stdout]   --> src/_0031_next_permutation.rs:4:12
[INFO] [stdout]    |
[INFO] [stdout]  4 |     pub fn next_permutation(nums: &mut Vec<i32>) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^ -------------------
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/_0031_next_permutation.rs:27:59
[INFO] [stdout]    |
[INFO] [stdout] 27 |     assert_eq!(Solution::next_permutation(vec![3, 2, 1]), vec![1, 2, 3]);
[INFO] [stdout]    |                                                           ^^^^^^^^^^^^^ expected `()`, found `Vec<{integer}>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected unit type `()`
[INFO] [stdout]                  found struct `Vec<{integer}>`
[INFO] [stdout]    = note: this error originates in the macro `vec` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/_0031_next_permutation.rs:28:43
[INFO] [stdout]    |
[INFO] [stdout] 28 |     assert_eq!(Solution::next_permutation(vec![1, 1, 5]), vec![1, 5, 1]);
[INFO] [stdout]    |                -------------------------- ^^^^^^^^^^^^^ expected `&mut Vec<i32>`, found `Vec<{integer}>`
[INFO] [stdout]    |                |
[INFO] [stdout]    |                arguments to this function are incorrect
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected mutable reference `&mut Vec<i32>`
[INFO] [stdout]                          found struct `Vec<{integer}>`
[INFO] [stdout] note: associated function defined here
[INFO] [stdout]   --> src/_0031_next_permutation.rs:4:12
[INFO] [stdout]    |
[INFO] [stdout]  4 |     pub fn next_permutation(nums: &mut Vec<i32>) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^ -------------------
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/_0031_next_permutation.rs:28:59
[INFO] [stdout]    |
[INFO] [stdout] 28 |     assert_eq!(Solution::next_permutation(vec![1, 1, 5]), vec![1, 5, 1]);
[INFO] [stdout]    |                                                           ^^^^^^^^^^^^^ expected `()`, found `Vec<{integer}>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected unit type `()`
[INFO] [stdout]                  found struct `Vec<{integer}>`
[INFO] [stdout]    = note: this error originates in the macro `vec` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/_0031_next_permutation.rs:5:21
[INFO] [stdout]   |
[INFO] [stdout] 5 |         let (mut i, mut switched) = (nums.len() - 1, false);
[INFO] [stdout]   |                     ----^^^^^^^^
[INFO] [stdout]   |                     |
[INFO] [stdout]   |                     help: remove this `mut`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `switched`
[INFO] [stdout]  --> src/_0031_next_permutation.rs:5:21
[INFO] [stdout]   |
[INFO] [stdout] 5 |         let (mut i, mut switched) = (nums.len() - 1, false);
[INFO] [stdout]   |                     ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_switched`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]  --> src/_0402_remove_k_digits.rs:7:14
[INFO] [stdout]   |
[INFO] [stdout] 7 |         for (i, c) in num.chars().enumerate() {
[INFO] [stdout]   |              ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0583`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `leetcode_rust` (lib) due to 1 previous error; 3 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/_0031_next_permutation.rs:5:21
[INFO] [stdout]   |
[INFO] [stdout] 5 |         let (mut i, mut switched) = (nums.len() - 1, false);
[INFO] [stdout]   |                     ----^^^^^^^^
[INFO] [stdout]   |                     |
[INFO] [stdout]   |                     help: remove this `mut`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `switched`
[INFO] [stdout]  --> src/_0031_next_permutation.rs:5:21
[INFO] [stdout]   |
[INFO] [stdout] 5 |         let (mut i, mut switched) = (nums.len() - 1, false);
[INFO] [stdout]   |                     ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_switched`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]  --> src/_0402_remove_k_digits.rs:7:14
[INFO] [stdout]   |
[INFO] [stdout] 7 |         for (i, c) in num.chars().enumerate() {
[INFO] [stdout]   |              ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0308, E0583.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `leetcode_rust` (lib test) due to 7 previous errors; 3 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "e13d3469d71bd6c35e74984ac0f295afb30f6254f61010feb835fcfc10fa895b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e13d3469d71bd6c35e74984ac0f295afb30f6254f61010feb835fcfc10fa895b", kill_on_drop: false }`
[INFO] [stdout] e13d3469d71bd6c35e74984ac0f295afb30f6254f61010feb835fcfc10fa895b
