[INFO] cloning repository https://github.com/CodingInGreen/algorithms
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/CodingInGreen/algorithms" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCodingInGreen%2Falgorithms", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCodingInGreen%2Falgorithms'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 564c150ffa60f9af7cc7d5e43a3e3403ac96480d
[INFO] checking CodingInGreen/algorithms against try#a7b168ac4977e8e93a43448b44847adaa305d5a9 for pr-150557
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCodingInGreen%2Falgorithms" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/CodingInGreen/algorithms
[INFO] finished tweaking git repo https://github.com/CodingInGreen/algorithms
[INFO] tweaked toml for git repo https://github.com/CodingInGreen/algorithms written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/CodingInGreen/algorithms on toolchain a7b168ac4977e8e93a43448b44847adaa305d5a9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a7b168ac4977e8e93a43448b44847adaa305d5a9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/CodingInGreen/algorithms 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" "+a7b168ac4977e8e93a43448b44847adaa305d5a9" "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-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+a7b168ac4977e8e93a43448b44847adaa305d5a9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4307b78fcd52004c467fa2c73977b85ab79008501ccbc625f9d684834094242c
[INFO] running `Command { std: "docker" "start" "-a" "4307b78fcd52004c467fa2c73977b85ab79008501ccbc625f9d684834094242c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4307b78fcd52004c467fa2c73977b85ab79008501ccbc625f9d684834094242c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4307b78fcd52004c467fa2c73977b85ab79008501ccbc625f9d684834094242c", kill_on_drop: false }`
[INFO] [stdout] 4307b78fcd52004c467fa2c73977b85ab79008501ccbc625f9d684834094242c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+a7b168ac4977e8e93a43448b44847adaa305d5a9" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 499e4252b78b6c5ae42be53c2a3ed91b116faec8d1ac98f7f2906ba5823988e7
[INFO] running `Command { std: "docker" "start" "-a" "499e4252b78b6c5ae42be53c2a3ed91b116faec8d1ac98f7f2906ba5823988e7", kill_on_drop: false }`
[INFO] [stderr]     Checking algorithms v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0601]: `main` function not found in crate `74_search_a_2d_matrix`
[INFO] [stdout]   --> bin/74_search_a_2d_matrix.rs:88:2
[INFO] [stdout]    |
[INFO] [stdout] 88 | }
[INFO] [stdout]    |  ^ consider adding a `main` function to `bin/74_search_a_2d_matrix.rs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0601`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `algorithms` (bin "74_search_a_2d_matrix") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> bin/659_encode_and_decode_strings.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | struct Solution;
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `encode` and `decode` are never used
[INFO] [stdout]   --> bin/659_encode_and_decode_strings.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl Solution {
[INFO] [stdout]    | ------------- associated functions in this implementation
[INFO] [stdout] 12 |     fn encode(strs: Vec<&str>) -> String {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 20 |     fn decode(s: String) -> Vec<String> {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `contains_duplicate` is never used
[INFO] [stdout]  --> bin/217_contains_duplicate.rs:9:4
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn contains_duplicate(nums: Vec<i32>) -> bool {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Solution` is never constructed
[INFO] [stdout]  --> bin/42_trapping_rain_water.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | struct Solution;
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `trap` is never used
[INFO] [stdout]   --> bin/42_trapping_rain_water.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl Solution {
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] 11 |     pub fn trap(height: Vec<i32>) -> i32 {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0601]: `main` function not found in crate `269_alien_dictionary`
[INFO] [stdout]    --> bin/269_alien_dictionary.rs:116:2
[INFO] [stdout]     |
[INFO] [stdout] 116 | }
[INFO] [stdout]     |  ^ consider adding a `main` function to `bin/269_alien_dictionary.rs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `top_k_frequent` is never used
[INFO] [stdout]  --> bin/347_top_k_frequent_elements.rs:8:4
[INFO] [stdout]   |
[INFO] [stdout] 8 | fn top_k_frequent(nums: Vec<i32>, k: i32) -> Vec<i32> {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0601`.
[INFO] [stdout] 
[INFO] [stdout] error[E0601]: `main` function not found in crate `226_invert_binary_tree`
[INFO] [stdout]    --> bin/226_invert_binary_tree.rs:131:2
[INFO] [stdout]     |
[INFO] [stdout] 131 | }
[INFO] [stdout]     |  ^ consider adding a `main` function to `bin/226_invert_binary_tree.rs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `build_tree` is never used
[INFO] [stdout]   --> bin/124_binary_tree_maximum_path_sum.rs:62:4
[INFO] [stdout]    |
[INFO] [stdout] 62 | fn build_tree(values: Vec<Option<i32>>) -> Option<Rc<RefCell<TreeNode>>> {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `algorithms` (bin "269_alien_dictionary") due to 1 previous error
[INFO] [stdout] warning: function `largest_rectangle_area` is never used
[INFO] [stdout]  --> bin/84_largest_rectangle_in_histogram.rs:8:4
[INFO] [stdout]   |
[INFO] [stdout] 8 | fn largest_rectangle_area(heights: Vec<i32>) -> i32 {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0601`.
[INFO] [stdout] 
[INFO] [stdout] error[E0601]: `main` function not found in crate `235_lowest_common_ancestor_of_a_binary_search_tree`
[INFO] [stdout]    --> bin/235_lowest_common_ancestor_of_a_binary_search_tree.rs:130:2
[INFO] [stdout]     |
[INFO] [stdout] 130 | }
[INFO] [stdout]     |  ^ consider adding a `main` function to `bin/235_lowest_common_ancestor_of_a_binary_search_tree.rs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `algorithms` (bin "226_invert_binary_tree") due to 1 previous error
[INFO] [stdout] For more information about this error, try `rustc --explain E0601`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `algorithms` (bin "235_lowest_common_ancestor_of_a_binary_search_tree") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "499e4252b78b6c5ae42be53c2a3ed91b116faec8d1ac98f7f2906ba5823988e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "499e4252b78b6c5ae42be53c2a3ed91b116faec8d1ac98f7f2906ba5823988e7", kill_on_drop: false }`
[INFO] [stdout] 499e4252b78b6c5ae42be53c2a3ed91b116faec8d1ac98f7f2906ba5823988e7
