[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] checking maeln/leetcode against master#9fa580b1175018b0a276b0bc68f9827a106f7260 for pr-82565
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaeln%2Fleetcode" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/maeln/leetcode on toolchain 9fa580b1175018b0a276b0bc68f9827a106f7260
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9fa580b1175018b0a276b0bc68f9827a106f7260" "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-10/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" "+9fa580b1175018b0a276b0bc68f9827a106f7260" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+9fa580b1175018b0a276b0bc68f9827a106f7260" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] eeb98f9e846263f92c3a07f66579924929cf24fc8e87029466a1273a38ccfb91
[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" "eeb98f9e846263f92c3a07f66579924929cf24fc8e87029466a1273a38ccfb91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eeb98f9e846263f92c3a07f66579924929cf24fc8e87029466a1273a38ccfb91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eeb98f9e846263f92c3a07f66579924929cf24fc8e87029466a1273a38ccfb91", kill_on_drop: false }`
[INFO] [stdout] eeb98f9e846263f92c3a07f66579924929cf24fc8e87029466a1273a38ccfb91
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+9fa580b1175018b0a276b0bc68f9827a106f7260" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 53b94727595cb80c92ce80d36e96f189da782938083c4b90409270efde87aacf
[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" "53b94727595cb80c92ce80d36e96f189da782938083c4b90409270efde87aacf", kill_on_drop: false }`
[INFO] [stderr]     Checking 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 0.84s
[INFO] running `Command { std: "docker" "inspect" "53b94727595cb80c92ce80d36e96f189da782938083c4b90409270efde87aacf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "53b94727595cb80c92ce80d36e96f189da782938083c4b90409270efde87aacf", kill_on_drop: false }`
[INFO] [stdout] 53b94727595cb80c92ce80d36e96f189da782938083c4b90409270efde87aacf