[INFO] cloning repository https://github.com/maeln/leetcode
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/maeln/leetcode" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaeln%2Fleetcode", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaeln%2Fleetcode'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] dcd0f946083a2f3937e060a93abdb27221a9008a
[INFO] testing maeln/leetcode against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaeln%2Fleetcode" "/workspace/builds/worker-75/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-75/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/maeln/leetcode on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/maeln/leetcode
[INFO] finished tweaking git repo https://github.com/maeln/leetcode
[INFO] tweaked toml for git repo https://github.com/maeln/leetcode written to /workspace/builds/worker-75/source/Cargo.toml
[INFO] crate git repo https://github.com/maeln/leetcode already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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-75/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 49b6a06dbbb3148cd9deee70d17de93a5d0c05e9766b9a7fcc1356f02bac0931
[INFO] running `Command { std: "docker" "start" "-a" "49b6a06dbbb3148cd9deee70d17de93a5d0c05e9766b9a7fcc1356f02bac0931", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "49b6a06dbbb3148cd9deee70d17de93a5d0c05e9766b9a7fcc1356f02bac0931", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49b6a06dbbb3148cd9deee70d17de93a5d0c05e9766b9a7fcc1356f02bac0931", kill_on_drop: false }`
[INFO] [stdout] 49b6a06dbbb3148cd9deee70d17de93a5d0c05e9766b9a7fcc1356f02bac0931
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1767ea370991043abd2e3dab5d0ee87e6fbb588a2d96eb1d3bc0b34cfc743d1c
[INFO] running `Command { std: "docker" "start" "-a" "1767ea370991043abd2e3dab5d0ee87e6fbb588a2d96eb1d3bc0b34cfc743d1c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling playground v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `remove_duplicates_sorted_array`
[INFO] [stdout]  --> src/array.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn remove_duplicates_sorted_array(nums: &mut Vec<i32>) -> i32 {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `max_profit2`
[INFO] [stdout]  --> src/dynamic_prog.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn max_profit2(prices: Vec<i32>) -> i32 {
[INFO] [stdout]   |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `max_profit`
[INFO] [stdout]   --> src/dynamic_prog.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub fn max_profit(prices: Vec<i32>) -> i32 {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `climb_stairs_rec`
[INFO] [stdout]   --> src/dynamic_prog.rs:78:8
[INFO] [stdout]    |
[INFO] [stdout] 78 | pub fn climb_stairs_rec(n: i32) -> i32 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `climb_stairs`
[INFO] [stdout]   --> src/dynamic_prog.rs:88:8
[INFO] [stdout]    |
[INFO] [stdout] 88 | pub fn climb_stairs(n: i32) -> i32 {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `climb_stairs_dyn`
[INFO] [stdout]    --> src/dynamic_prog.rs:110:8
[INFO] [stdout]     |
[INFO] [stdout] 110 | pub fn climb_stairs_dyn(n: i32) -> i32 {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `LUT`
[INFO] [stdout]    --> src/dynamic_prog.rs:125:1
[INFO] [stdout]     |
[INFO] [stdout] 125 | / const LUT: &[i32] = &[
[INFO] [stdout] 126 | |     0, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233, 377, 610, 987, 1597, 2584, 4181, 6765, 10946,
[INFO] [stdout] 127 | |     17711, 28657, 46368, 75025, 121393, 196418, 317811, 514229, 832040, 1346269, 2178309, 3524578,
[INFO] [stdout] 128 | |     5702887, 9227465, 14930352, 24157817, 39088169, 63245986, 102334155, 165580141, 267914296,
[INFO] [stdout] 129 | |     433494437, 701408733, 1134903170, 1836311903,
[INFO] [stdout] 130 | | ];
[INFO] [stdout]     | |__^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `climb_stairs_lut`
[INFO] [stdout]    --> src/dynamic_prog.rs:131:8
[INFO] [stdout]     |
[INFO] [stdout] 131 | pub fn climb_stairs_lut(n: i32) -> i32 {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.40s
[INFO] running `Command { std: "docker" "inspect" "1767ea370991043abd2e3dab5d0ee87e6fbb588a2d96eb1d3bc0b34cfc743d1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1767ea370991043abd2e3dab5d0ee87e6fbb588a2d96eb1d3bc0b34cfc743d1c", kill_on_drop: false }`
[INFO] [stdout] 1767ea370991043abd2e3dab5d0ee87e6fbb588a2d96eb1d3bc0b34cfc743d1c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 828b1c9589e2eee51b95d5bee08a589083c1c2c9c9f98e43ca08ac0357ea3bce
[INFO] running `Command { std: "docker" "start" "-a" "828b1c9589e2eee51b95d5bee08a589083c1c2c9c9f98e43ca08ac0357ea3bce", kill_on_drop: false }`
[INFO] [stdout] warning: function is never used: `remove_duplicates_sorted_array`
[INFO] [stdout]  --> src/array.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn remove_duplicates_sorted_array(nums: &mut Vec<i32>) -> i32 {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `max_profit2`
[INFO] [stdout]  --> src/dynamic_prog.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn max_profit2(prices: Vec<i32>) -> i32 {
[INFO] [stdout]   |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `max_profit`
[INFO] [stdout]   --> src/dynamic_prog.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub fn max_profit(prices: Vec<i32>) -> i32 {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `climb_stairs_rec`
[INFO] [stdout]   --> src/dynamic_prog.rs:78:8
[INFO] [stdout]    |
[INFO] [stdout] 78 | pub fn climb_stairs_rec(n: i32) -> i32 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `climb_stairs`
[INFO] [stdout]   --> src/dynamic_prog.rs:88:8
[INFO] [stdout]    |
[INFO] [stdout] 88 | pub fn climb_stairs(n: i32) -> i32 {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling playground v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `climb_stairs_dyn`
[INFO] [stdout]    --> src/dynamic_prog.rs:110:8
[INFO] [stdout]     |
[INFO] [stdout] 110 | pub fn climb_stairs_dyn(n: i32) -> i32 {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `LUT`
[INFO] [stdout]    --> src/dynamic_prog.rs:125:1
[INFO] [stdout]     |
[INFO] [stdout] 125 | / const LUT: &[i32] = &[
[INFO] [stdout] 126 | |     0, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233, 377, 610, 987, 1597, 2584, 4181, 6765, 10946,
[INFO] [stdout] 127 | |     17711, 28657, 46368, 75025, 121393, 196418, 317811, 514229, 832040, 1346269, 2178309, 3524578,
[INFO] [stdout] 128 | |     5702887, 9227465, 14930352, 24157817, 39088169, 63245986, 102334155, 165580141, 267914296,
[INFO] [stdout] 129 | |     433494437, 701408733, 1134903170, 1836311903,
[INFO] [stdout] 130 | | ];
[INFO] [stdout]     | |__^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `climb_stairs_lut`
[INFO] [stdout]    --> src/dynamic_prog.rs:131:8
[INFO] [stdout]     |
[INFO] [stdout] 131 | pub fn climb_stairs_lut(n: i32) -> i32 {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.82s
[INFO] running `Command { std: "docker" "inspect" "828b1c9589e2eee51b95d5bee08a589083c1c2c9c9f98e43ca08ac0357ea3bce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "828b1c9589e2eee51b95d5bee08a589083c1c2c9c9f98e43ca08ac0357ea3bce", kill_on_drop: false }`
[INFO] [stdout] 828b1c9589e2eee51b95d5bee08a589083c1c2c9c9f98e43ca08ac0357ea3bce
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] feec22cdc58325af8ec67b77eed8bc40b628c93de4d13113cbf8ab25b99feec5
[INFO] running `Command { std: "docker" "start" "-a" "feec22cdc58325af8ec67b77eed8bc40b628c93de4d13113cbf8ab25b99feec5", kill_on_drop: false }`
[INFO] [stderr] warning: function is never used: `remove_duplicates_sorted_array`
[INFO] [stderr]  --> src/array.rs:6:8
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub fn remove_duplicates_sorted_array(nums: &mut Vec<i32>) -> i32 {
[INFO] [stderr]   |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `max_profit2`
[INFO] [stderr]  --> src/dynamic_prog.rs:5:8
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn max_profit2(prices: Vec<i32>) -> i32 {
[INFO] [stderr]   |        ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `max_profit`
[INFO] [stderr]   --> src/dynamic_prog.rs:21:8
[INFO] [stderr]    |
[INFO] [stderr] 21 | pub fn max_profit(prices: Vec<i32>) -> i32 {
[INFO] [stderr]    |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `climb_stairs_rec`
[INFO] [stderr]   --> src/dynamic_prog.rs:78:8
[INFO] [stderr]    |
[INFO] [stderr] 78 | pub fn climb_stairs_rec(n: i32) -> i32 {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `climb_stairs`
[INFO] [stderr]   --> src/dynamic_prog.rs:88:8
[INFO] [stderr]    |
[INFO] [stderr] 88 | pub fn climb_stairs(n: i32) -> i32 {
[INFO] [stderr]    |        ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `climb_stairs_dyn`
[INFO] [stderr]    --> src/dynamic_prog.rs:110:8
[INFO] [stderr]     |
[INFO] [stderr] 110 | pub fn climb_stairs_dyn(n: i32) -> i32 {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `LUT`
[INFO] [stderr]    --> src/dynamic_prog.rs:125:1
[INFO] [stderr]     |
[INFO] [stderr] 125 | / const LUT: &[i32] = &[
[INFO] [stderr] 126 | |     0, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233, 377, 610, 987, 1597, 2584, 4181, 6765, 10946,
[INFO] [stderr] 127 | |     17711, 28657, 46368, 75025, 121393, 196418, 317811, 514229, 832040, 1346269, 2178309, 3524578,
[INFO] [stderr] 128 | |     5702887, 9227465, 14930352, 24157817, 39088169, 63245986, 102334155, 165580141, 267914296,
[INFO] [stderr] 129 | |     433494437, 701408733, 1134903170, 1836311903,
[INFO] [stderr] 130 | | ];
[INFO] [stderr]     | |__^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `climb_stairs_lut`
[INFO] [stderr]    --> src/dynamic_prog.rs:131:8
[INFO] [stderr]     |
[INFO] [stderr] 131 | pub fn climb_stairs_lut(n: i32) -> i32 {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `playground` (lib) generated 8 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/playground-91de44429085f12b)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests playground
[INFO] [stdout] running 7 tests
[INFO] [stdout] test array::tests::solution1 ... ok
[INFO] [stdout] test dynamic_prog::tests::climbing_stairs ... ok
[INFO] [stdout] test dynamic_prog::tests::climbing_stairs_lut ... ok
[INFO] [stdout] test dynamic_prog::tests::climbing_stairs_dyn ... ok
[INFO] [stdout] test dynamic_prog::tests::climbing_stairs_rec ... ok
[INFO] [stdout] test dynamic_prog::tests::stocks_solution1 ... ok
[INFO] [stdout] test dynamic_prog::tests::stocks_solution2 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[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] running `Command { std: "docker" "inspect" "feec22cdc58325af8ec67b77eed8bc40b628c93de4d13113cbf8ab25b99feec5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "feec22cdc58325af8ec67b77eed8bc40b628c93de4d13113cbf8ab25b99feec5", kill_on_drop: false }`
[INFO] [stdout] feec22cdc58325af8ec67b77eed8bc40b628c93de4d13113cbf8ab25b99feec5