[INFO] cloning repository https://github.com/Mimikkk/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/Mimikkk/leetcode-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMimikkk%2Fleetcode-rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMimikkk%2Fleetcode-rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 589e764a3ed61605c586ce6316ac1aa2fa2e3689 [INFO] checking Mimikkk/leetcode-rust against try#32cb8dc6fdc8140b91f4d17c4883e528db4e7e6d for pr-83312 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMimikkk%2Fleetcode-rust" "/workspace/builds/worker-2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/Mimikkk/leetcode-rust on toolchain 32cb8dc6fdc8140b91f4d17c4883e528db4e7e6d [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+32cb8dc6fdc8140b91f4d17c4883e528db4e7e6d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/Mimikkk/leetcode-rust [INFO] finished tweaking git repo https://github.com/Mimikkk/leetcode-rust [INFO] tweaked toml for git repo https://github.com/Mimikkk/leetcode-rust written to /workspace/builds/worker-2/source/Cargo.toml [INFO] crate git repo https://github.com/Mimikkk/leetcode-rust already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+32cb8dc6fdc8140b91f4d17c4883e528db4e7e6d" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:4f92631de1aa59f8320307485d3b3c869a5c90ab1d76ce2cffab9807b8c9a1fb" "/opt/rustwide/cargo-home/bin/cargo" "+32cb8dc6fdc8140b91f4d17c4883e528db4e7e6d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 8561d8ede3db0389685936b7dd8c6551f6670fe2587a18816b01467585c2b9e5 [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" "8561d8ede3db0389685936b7dd8c6551f6670fe2587a18816b01467585c2b9e5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "8561d8ede3db0389685936b7dd8c6551f6670fe2587a18816b01467585c2b9e5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8561d8ede3db0389685936b7dd8c6551f6670fe2587a18816b01467585c2b9e5", kill_on_drop: false }` [INFO] [stdout] 8561d8ede3db0389685936b7dd8c6551f6670fe2587a18816b01467585c2b9e5 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:4f92631de1aa59f8320307485d3b3c869a5c90ab1d76ce2cffab9807b8c9a1fb" "/opt/rustwide/cargo-home/bin/cargo" "+32cb8dc6fdc8140b91f4d17c4883e528db4e7e6d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 6c0af365353cb90f10d5a2b6034d7e8033137b809b722e951f545f0697c251fb [INFO] running `Command { std: "docker" "start" "-a" "6c0af365353cb90f10d5a2b6034d7e8033137b809b722e951f545f0697c251fb", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.86 [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Checking either v1.6.1 [INFO] [stderr] Checking getrandom v0.2.2 [INFO] [stderr] Checking rand_core v0.6.2 [INFO] [stderr] Checking rand_chacha v0.3.0 [INFO] [stderr] Checking rand v0.8.3 [INFO] [stderr] Checking leetcode v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/algorithms.rs:719:10 [INFO] [stdout] | [INFO] [stdout] 719 | for (i, size) in chunk_sizes.into_iter().enumerate() {} [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `size` [INFO] [stdout] --> src/algorithms.rs:719:13 [INFO] [stdout] | [INFO] [stdout] 719 | for (i, size) in chunk_sizes.into_iter().enumerate() {} [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_size` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `val` is never read [INFO] [stdout] --> src/ghost/firstbatch.rs:46:14 [INFO] [stdout] | [INFO] [stdout] 46 | let (mut val, mut carry) = (0, false); [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `current` is never read [INFO] [stdout] --> src/ghost/firstbatch.rs:122:40 [INFO] [stdout] | [INFO] [stdout] 122 | let (mut result, mut previous, mut current) = (0, 0, 0); [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `mid` is never read [INFO] [stdout] --> src/ghost/secondbatch.rs:6:13 [INFO] [stdout] | [INFO] [stdout] 6 | let mut mid: i64 = 0; [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/algorithms.rs:638:23 [INFO] [stdout] | [INFO] [stdout] 638 | pub fn find_duplicate(mut nums: Vec) -> i32 { [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/algorithms.rs:791:45 [INFO] [stdout] | [INFO] [stdout] 791 | current_chars.into_iter().fold(0, |acc, mut c| acc + c.is_none() as i32) [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/algorithms.rs:778:46 [INFO] [stdout] | [INFO] [stdout] 778 | pub fn num_matching_subseq(sequence: String, mut subsequences: Vec) -> i32 { [INFO] [stdout] | ----^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 8 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> src/algorithms.rs:719:10 [INFO] [stdout] | [INFO] [stdout] 719 | for (i, size) in chunk_sizes.into_iter().enumerate() {} [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `size` [INFO] [stdout] --> src/algorithms.rs:719:13 [INFO] [stdout] | [INFO] [stdout] 719 | for (i, size) in chunk_sizes.into_iter().enumerate() {} [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_size` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `val` is never read [INFO] [stdout] --> src/ghost/firstbatch.rs:46:14 [INFO] [stdout] | [INFO] [stdout] 46 | let (mut val, mut carry) = (0, false); [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `current` is never read [INFO] [stdout] --> src/ghost/firstbatch.rs:122:40 [INFO] [stdout] | [INFO] [stdout] 122 | let (mut result, mut previous, mut current) = (0, 0, 0); [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `mid` is never read [INFO] [stdout] --> src/ghost/secondbatch.rs:6:13 [INFO] [stdout] | [INFO] [stdout] 6 | let mut mid: i64 = 0; [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/algorithms.rs:638:23 [INFO] [stdout] | [INFO] [stdout] 638 | pub fn find_duplicate(mut nums: Vec) -> i32 { [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/algorithms.rs:791:45 [INFO] [stdout] | [INFO] [stdout] 791 | current_chars.into_iter().fold(0, |acc, mut c| acc + c.is_none() as i32) [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/algorithms.rs:778:46 [INFO] [stdout] | [INFO] [stdout] 778 | pub fn num_matching_subseq(sequence: String, mut subsequences: Vec) -> i32 { [INFO] [stdout] | ----^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 8 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 5.65s [INFO] running `Command { std: "docker" "inspect" "6c0af365353cb90f10d5a2b6034d7e8033137b809b722e951f545f0697c251fb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6c0af365353cb90f10d5a2b6034d7e8033137b809b722e951f545f0697c251fb", kill_on_drop: false }` [INFO] [stdout] 6c0af365353cb90f10d5a2b6034d7e8033137b809b722e951f545f0697c251fb