[INFO] updating cached repository https://github.com/wucheng/leetcode-rust [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"` [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 31af7426ee4af600f3c11e98886b3cc44e46af88 [INFO] testing wucheng/leetcode-rust against 1.44.0 for beta-1.45-1 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwucheng%2Fleetcode-rust" "/workspace/builds/worker-13/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/wucheng/leetcode-rust on toolchain 1.44.0 [INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/wucheng/leetcode-rust [INFO] finished tweaking git repo https://github.com/wucheng/leetcode-rust [INFO] tweaked toml for git repo https://github.com/wucheng/leetcode-rust written to /workspace/builds/worker-13/source/Cargo.toml [INFO] crate git repo https://github.com/wucheng/leetcode-rust already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "build" "--frozen"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] c74d1debe337bbfb32e43ff95175fb1db8caf2ac70e06922c7205b1561dd07b1 [INFO] running `"docker" "start" "-a" "c74d1debe337bbfb32e43ff95175fb1db8caf2ac70e06922c7205b1561dd07b1"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling leetcode_rust v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unreachable expression [INFO] [stderr] --> src/s0617_merge_two_binary_trees/merge_two_binary_trees.rs:25:9 [INFO] [stderr] | [INFO] [stderr] 9 | / match (t1, t2) { [INFO] [stderr] 10 | | (None, None) => return None, [INFO] [stderr] 11 | | (Some(t1_rc), None) => return Some(t1_rc.clone()), [INFO] [stderr] 12 | | (None, Some(t2_rc)) => return Some(t2_rc.clone()), [INFO] [stderr] ... | [INFO] [stderr] 22 | | } [INFO] [stderr] 23 | | } [INFO] [stderr] | |_________- any code following this `match` expression is unreachable, as all arms diverge [INFO] [stderr] 24 | #[warn(unreachable_code)] [INFO] [stderr] 25 | unreachable!() [INFO] [stderr] | ^^^^^^^^^^^^^^ unreachable expression [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unreachable_code)]` on by default [INFO] [stderr] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> src/s0206_reverse_linked_list/reverse_linked_list.rs:3:12 [INFO] [stderr] | [INFO] [stderr] 3 | pub struct Solution; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: method is never used: `reverse_list` [INFO] [stderr] --> src/s0206_reverse_linked_list/reverse_linked_list.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 6 | pub fn reverse_list(head: Option>) -> Option> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> src/s0617_merge_two_binary_trees/merge_two_binary_trees.rs:6:12 [INFO] [stderr] | [INFO] [stderr] 6 | pub struct Solution; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `merge_trees` [INFO] [stderr] --> src/s0617_merge_two_binary_trees/merge_two_binary_trees.rs:8:5 [INFO] [stderr] | [INFO] [stderr] 8 | pub fn merge_trees(t1: Option>>, t2: Option>>) -> Option>> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: 5 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 2.09s [INFO] running `"docker" "inspect" "c74d1debe337bbfb32e43ff95175fb1db8caf2ac70e06922c7205b1561dd07b1"` [INFO] running `"docker" "rm" "-f" "c74d1debe337bbfb32e43ff95175fb1db8caf2ac70e06922c7205b1561dd07b1"` [INFO] [stdout] c74d1debe337bbfb32e43ff95175fb1db8caf2ac70e06922c7205b1561dd07b1 [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "test" "--frozen" "--no-run"` [INFO] [stdout] 5794c19818d90f454a6270eba55957cb7550e8b548ffe21aff7145ce6c389795 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `"docker" "start" "-a" "5794c19818d90f454a6270eba55957cb7550e8b548ffe21aff7145ce6c389795"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling leetcode_rust v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unreachable expression [INFO] [stderr] --> src/s0617_merge_two_binary_trees/merge_two_binary_trees.rs:25:9 [INFO] [stderr] | [INFO] [stderr] 9 | / match (t1, t2) { [INFO] [stderr] 10 | | (None, None) => return None, [INFO] [stderr] 11 | | (Some(t1_rc), None) => return Some(t1_rc.clone()), [INFO] [stderr] 12 | | (None, Some(t2_rc)) => return Some(t2_rc.clone()), [INFO] [stderr] ... | [INFO] [stderr] 22 | | } [INFO] [stderr] 23 | | } [INFO] [stderr] | |_________- any code following this `match` expression is unreachable, as all arms diverge [INFO] [stderr] 24 | #[warn(unreachable_code)] [INFO] [stderr] 25 | unreachable!() [INFO] [stderr] | ^^^^^^^^^^^^^^ unreachable expression [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unreachable_code)]` on by default [INFO] [stderr] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> src/s0206_reverse_linked_list/reverse_linked_list.rs:3:12 [INFO] [stderr] | [INFO] [stderr] 3 | pub struct Solution; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: method is never used: `reverse_list` [INFO] [stderr] --> src/s0206_reverse_linked_list/reverse_linked_list.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 6 | pub fn reverse_list(head: Option>) -> Option> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> src/s0617_merge_two_binary_trees/merge_two_binary_trees.rs:6:12 [INFO] [stderr] | [INFO] [stderr] 6 | pub struct Solution; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `merge_trees` [INFO] [stderr] --> src/s0617_merge_two_binary_trees/merge_two_binary_trees.rs:8:5 [INFO] [stderr] | [INFO] [stderr] 8 | pub fn merge_trees(t1: Option>>, t2: Option>>) -> Option>> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: 5 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: unreachable expression [INFO] [stderr] --> src/s0617_merge_two_binary_trees/merge_two_binary_trees.rs:25:9 [INFO] [stderr] | [INFO] [stderr] 9 | / match (t1, t2) { [INFO] [stderr] 10 | | (None, None) => return None, [INFO] [stderr] 11 | | (Some(t1_rc), None) => return Some(t1_rc.clone()), [INFO] [stderr] 12 | | (None, Some(t2_rc)) => return Some(t2_rc.clone()), [INFO] [stderr] ... | [INFO] [stderr] 22 | | } [INFO] [stderr] 23 | | } [INFO] [stderr] | |_________- any code following this `match` expression is unreachable, as all arms diverge [INFO] [stderr] 24 | #[warn(unreachable_code)] [INFO] [stderr] 25 | unreachable!() [INFO] [stderr] | ^^^^^^^^^^^^^^ unreachable expression [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unreachable_code)]` on by default [INFO] [stderr] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/s0206_reverse_linked_list/reverse_linked_list.rs:39:13 [INFO] [stderr] | [INFO] [stderr] 39 | let mut third_node = ListNode::new(3); [INFO] [stderr] | ----^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 2 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.38s [INFO] running `"docker" "inspect" "5794c19818d90f454a6270eba55957cb7550e8b548ffe21aff7145ce6c389795"` [INFO] running `"docker" "rm" "-f" "5794c19818d90f454a6270eba55957cb7550e8b548ffe21aff7145ce6c389795"` [INFO] [stdout] 5794c19818d90f454a6270eba55957cb7550e8b548ffe21aff7145ce6c389795 [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "test" "--frozen"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] f3b4c1917928046b86123a821db45b81d67c2f764b0149532cedd43358475237 [INFO] running `"docker" "start" "-a" "f3b4c1917928046b86123a821db45b81d67c2f764b0149532cedd43358475237"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] warning: unreachable expression [INFO] [stderr] --> src/s0617_merge_two_binary_trees/merge_two_binary_trees.rs:25:9 [INFO] [stderr] | [INFO] [stderr] 9 | / match (t1, t2) { [INFO] [stderr] 10 | | (None, None) => return None, [INFO] [stderr] 11 | | (Some(t1_rc), None) => return Some(t1_rc.clone()), [INFO] [stderr] 12 | | (None, Some(t2_rc)) => return Some(t2_rc.clone()), [INFO] [stderr] ... | [INFO] [stderr] 22 | | } [INFO] [stderr] 23 | | } [INFO] [stderr] | |_________- any code following this `match` expression is unreachable, as all arms diverge [INFO] [stderr] 24 | #[warn(unreachable_code)] [INFO] [stderr] 25 | unreachable!() [INFO] [stderr] | ^^^^^^^^^^^^^^ unreachable expression [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unreachable_code)]` on by default [INFO] [stderr] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> src/s0206_reverse_linked_list/reverse_linked_list.rs:3:12 [INFO] [stderr] | [INFO] [stderr] 3 | pub struct Solution; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: method is never used: `reverse_list` [INFO] [stderr] --> src/s0206_reverse_linked_list/reverse_linked_list.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 6 | pub fn reverse_list(head: Option>) -> Option> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: struct is never constructed: `Solution` [INFO] [stderr] --> src/s0617_merge_two_binary_trees/merge_two_binary_trees.rs:6:12 [INFO] [stderr] | [INFO] [stderr] 6 | pub struct Solution; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `merge_trees` [INFO] [stderr] --> src/s0617_merge_two_binary_trees/merge_two_binary_trees.rs:8:5 [INFO] [stderr] | [INFO] [stderr] 8 | pub fn merge_trees(t1: Option>>, t2: Option>>) -> Option>> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: 5 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: unreachable expression [INFO] [stderr] --> src/s0617_merge_two_binary_trees/merge_two_binary_trees.rs:25:9 [INFO] [stderr] | [INFO] [stderr] 9 | / match (t1, t2) { [INFO] [stderr] 10 | | (None, None) => return None, [INFO] [stderr] 11 | | (Some(t1_rc), None) => return Some(t1_rc.clone()), [INFO] [stderr] 12 | | (None, Some(t2_rc)) => return Some(t2_rc.clone()), [INFO] [stderr] ... | [INFO] [stderr] 22 | | } [INFO] [stderr] 23 | | } [INFO] [stderr] | |_________- any code following this `match` expression is unreachable, as all arms diverge [INFO] [stderr] 24 | #[warn(unreachable_code)] [INFO] [stderr] 25 | unreachable!() [INFO] [stderr] | ^^^^^^^^^^^^^^ unreachable expression [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unreachable_code)]` on by default [INFO] [stderr] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/s0206_reverse_linked_list/reverse_linked_list.rs:39:13 [INFO] [stderr] | [INFO] [stderr] 39 | let mut third_node = ListNode::new(3); [INFO] [stderr] | ----^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 2 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.06s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/leetcode_rust-8fc6915eef7e5213 [INFO] [stdout] [INFO] [stdout] running 6 tests [INFO] [stdout] test s0206_reverse_linked_list::reverse_linked_list::test::test_reverse_listnode ... ok [INFO] [stdout] test s0617_merge_two_binary_trees::merge_two_binary_trees::tests::test_none_merge_some ... ok [INFO] [stdout] test s0617_merge_two_binary_trees::merge_two_binary_trees::tests::test_none_merge_none ... ok [INFO] [stdout] test s0617_merge_two_binary_trees::merge_two_binary_trees::tests::test_some_merge_some ... ok [INFO] [stdout] test s0617_merge_two_binary_trees::merge_two_binary_trees::tests::test_some_merge_none ... ok [INFO] [stdout] test s0206_reverse_linked_list::reverse_linked_list::test::test_none ... ok [INFO] [stderr] Running /opt/rustwide/target/debug/deps/main-c551f1fdba385d73 [INFO] [stdout] [INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Doc-tests leetcode_rust [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [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 [INFO] [stdout] [INFO] running `"docker" "inspect" "f3b4c1917928046b86123a821db45b81d67c2f764b0149532cedd43358475237"` [INFO] running `"docker" "rm" "-f" "f3b4c1917928046b86123a821db45b81d67c2f764b0149532cedd43358475237"` [INFO] [stdout] f3b4c1917928046b86123a821db45b81d67c2f764b0149532cedd43358475237