[INFO] cloning repository https://github.com/sunziping2016/leetcode [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sunziping2016/leetcode" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsunziping2016%2Fleetcode", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsunziping2016%2Fleetcode'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 134f8f9ec3d66add8c1ee19294de3fff3c4d0f98 [INFO] checking sunziping2016/leetcode against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsunziping2016%2Fleetcode" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/sunziping2016/leetcode on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/sunziping2016/leetcode [INFO] finished tweaking git repo https://github.com/sunziping2016/leetcode [INFO] tweaked toml for git repo https://github.com/sunziping2016/leetcode written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/sunziping2016/leetcode 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"` [INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest [INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest [INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 11069abac68f1b5836f79c7b35a372cbdb17dd99b7f166cf8c494f50ced5a518 [INFO] running `Command { std: "docker" "start" "-a" "11069abac68f1b5836f79c7b35a372cbdb17dd99b7f166cf8c494f50ced5a518", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "11069abac68f1b5836f79c7b35a372cbdb17dd99b7f166cf8c494f50ced5a518", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "11069abac68f1b5836f79c7b35a372cbdb17dd99b7f166cf8c494f50ced5a518", kill_on_drop: false }` [INFO] [stdout] 11069abac68f1b5836f79c7b35a372cbdb17dd99b7f166cf8c494f50ced5a518 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 7ce4e167869bd578102c1e371c8673896aeac2a8e683765dbb953cee5ca4a2c1 [INFO] running `Command { std: "docker" "start" "-a" "7ce4e167869bd578102c1e371c8673896aeac2a8e683765dbb953cee5ca4a2c1", kill_on_drop: false }` [INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"` [INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest [INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest [INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions [INFO] [stderr] Compiling semver v1.0.5 [INFO] [stderr] Compiling crossbeam-utils v0.8.7 [INFO] [stderr] Compiling memoffset v0.6.5 [INFO] [stderr] Compiling libc v0.2.117 [INFO] [stderr] Compiling memchr v2.4.1 [INFO] [stderr] Compiling crossbeam-epoch v0.9.7 [INFO] [stderr] Compiling rayon-core v1.9.1 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Checking either v1.6.1 [INFO] [stderr] Compiling syn v1.0.86 [INFO] [stderr] Compiling rayon v1.5.1 [INFO] [stderr] Checking regex-automata v0.1.10 [INFO] [stderr] Checking plotters-backend v0.3.2 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking regex-syntax v0.6.25 [INFO] [stderr] Checking itoa v0.4.8 [INFO] [stderr] Checking itertools v0.10.3 [INFO] [stderr] Checking half v1.8.2 [INFO] [stderr] Checking same-file v1.0.6 [INFO] [stderr] Checking clap v2.34.0 [INFO] [stderr] Checking walkdir v2.3.2 [INFO] [stderr] Checking tinytemplate v1.2.1 [INFO] [stderr] Checking oorandom v11.1.3 [INFO] [stderr] Checking regular-expression-matching v0.1.0 (/opt/rustwide/workdir/0010.regular-expression-matching.rust) [INFO] [stderr] Checking four-sum v0.1.0 (/opt/rustwide/workdir/0018.4sum.rust) [INFO] [stderr] Checking plotters-svg v0.3.1 [INFO] [stderr] Checking reverse-nodes-in-k-group v0.1.0 (/opt/rustwide/workdir/0025.reverse-nodes-in-k-group.rust) [INFO] [stderr] Checking three-sum-closest v0.1.0 (/opt/rustwide/workdir/0016.3sum-closest.rust) [INFO] [stderr] Checking serde_cbor v0.11.2 [INFO] [stderr] Checking integer-to-roman v0.1.0 (/opt/rustwide/workdir/0012.integer-to-roman.rust) [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> 0025.reverse-nodes-in-k-group.rust/src/lib.rs:12:8 [INFO] [stdout] | [INFO] [stdout] 10 | impl ListNode { [INFO] [stdout] | ------------- associated function in this implementation [INFO] [stdout] 11 | #[inline] [INFO] [stdout] 12 | fn new(val: i32) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking longest-palindromic-substring v0.1.0 (/opt/rustwide/workdir/0005.longest-palindromic-substring.rust) [INFO] [stderr] Checking merge-k-sorted-lists v0.1.0 (/opt/rustwide/workdir/0023.merge-k-sorted-lists.rust) [INFO] [stderr] Checking remove-nth-node-from-end-of-list v0.1.0 (/opt/rustwide/workdir/0019.remove-nth-node-from-end-of-list.rust) [INFO] [stderr] Checking string-to-integer-atoi v0.1.0 (/opt/rustwide/workdir/0008.string-to-integer-atoi.rust) [INFO] [stderr] Checking add-two-numbers v0.1.0 (/opt/rustwide/workdir/0002.add-two-numbers.rust) [INFO] [stderr] Checking median-of-two-sorted-arrays v0.1.0 (/opt/rustwide/workdir/0004.median-of-two-sorted-arrays.rust) [INFO] [stderr] Checking length-of-longest-substring v0.1.0 (/opt/rustwide/workdir/0003.length-of-longest-substring.rust) [INFO] [stderr] Checking generate-parentheses v0.1.0 (/opt/rustwide/workdir/0022.generate-parentheses.rust) [INFO] [stderr] Checking letter-combinations-of-a-phone-number v0.1.0 (/opt/rustwide/workdir/0017.letter-combinations-of-a-phone-number.rust) [INFO] [stderr] Checking reverse-integer v0.1.0 (/opt/rustwide/workdir/0007.reverse-integer.rust) [INFO] [stderr] Checking two-sum v0.1.0 (/opt/rustwide/workdir/0001.two-sum.rust) [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> 0019.remove-nth-node-from-end-of-list.rust/src/lib.rs:12:8 [INFO] [stdout] | [INFO] [stdout] 10 | impl ListNode { [INFO] [stdout] | ------------- associated function in this implementation [INFO] [stdout] 11 | #[inline] [INFO] [stdout] 12 | fn new(val: i32) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking remove-duplicates-from-sorted-array v0.1.0 (/opt/rustwide/workdir/0026.remove-duplicates-from-sorted-array.rust) [INFO] [stderr] Checking longest-common-prefix v0.1.0 (/opt/rustwide/workdir/0014.longest-common-prefix.rust) [INFO] [stderr] Checking swap-nodes-in-pairs v0.1.0 (/opt/rustwide/workdir/0024.swap-nodes-in-pairs.rust) [INFO] [stderr] Checking container-with-most-water v0.1.0 (/opt/rustwide/workdir/0011.container-with-most-water.rust) [INFO] [stderr] Checking crossbeam-channel v0.5.2 [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> 0024.swap-nodes-in-pairs.rust/src/lib.rs:12:8 [INFO] [stdout] | [INFO] [stdout] 10 | impl ListNode { [INFO] [stdout] | ------------- associated function in this implementation [INFO] [stdout] 11 | #[inline] [INFO] [stdout] 12 | fn new(val: i32) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking valid-parentheses v0.1.0 (/opt/rustwide/workdir/0020.valid-parentheses.rust) [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> 0019.remove-nth-node-from-end-of-list.rust/src/lib.rs:12:8 [INFO] [stdout] | [INFO] [stdout] 10 | impl ListNode { [INFO] [stdout] | ------------- associated function in this implementation [INFO] [stdout] 11 | #[inline] [INFO] [stdout] 12 | fn new(val: i32) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling rustc_version v0.4.0 [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> 0025.reverse-nodes-in-k-group.rust/src/lib.rs:12:8 [INFO] [stdout] | [INFO] [stdout] 10 | impl ListNode { [INFO] [stdout] | ------------- associated function in this implementation [INFO] [stdout] 11 | #[inline] [INFO] [stdout] 12 | fn new(val: i32) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking merge-two-sorted-lists v0.1.0 (/opt/rustwide/workdir/0021.merge-two-sorted-lists.rust) [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> 0021.merge-two-sorted-lists.rust/src/lib.rs:12:6 [INFO] [stdout] | [INFO] [stdout] 10 | impl ListNode { [INFO] [stdout] | ------------- associated function in this implementation [INFO] [stdout] 11 | #[inline] [INFO] [stdout] 12 | fn new(val: i32) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking zigzag-conversion v0.1.0 (/opt/rustwide/workdir/0006.zigzag-conversion.rust) [INFO] [stderr] Checking csv-core v0.1.10 [INFO] [stderr] Checking bstr v0.2.17 [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> 0024.swap-nodes-in-pairs.rust/src/lib.rs:12:8 [INFO] [stdout] | [INFO] [stdout] 10 | impl ListNode { [INFO] [stdout] | ------------- associated function in this implementation [INFO] [stdout] 11 | #[inline] [INFO] [stdout] 12 | fn new(val: i32) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking roman-to-integer v0.1.0 (/opt/rustwide/workdir/0013.roman-to-integer.rust) [INFO] [stderr] Checking crossbeam-deque v0.8.1 [INFO] [stderr] Checking palindrome-number v0.1.0 (/opt/rustwide/workdir/0009.palindrome-number.rust) [INFO] [stderr] Checking three-sum v0.1.0 (/opt/rustwide/workdir/0015.3sum.rust) [INFO] [stderr] Checking remove-element v0.1.0 (/opt/rustwide/workdir/0027.remove-element.rust) [INFO] [stderr] Checking regex v1.5.4 [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> 0021.merge-two-sorted-lists.rust/src/lib.rs:12:6 [INFO] [stdout] | [INFO] [stdout] 10 | impl ListNode { [INFO] [stdout] | ------------- associated function in this implementation [INFO] [stdout] 11 | #[inline] [INFO] [stdout] 12 | fn new(val: i32) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling cast v0.2.7 [INFO] [stderr] Checking plotters v0.3.1 [INFO] [stderr] Checking num_cpus v1.13.1 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking csv v1.1.6 [INFO] [stderr] Checking criterion-plot v0.4.4 [INFO] [stderr] Compiling serde_derive v1.0.136 [INFO] [stderr] Checking criterion v0.3.5 [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 14.05s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: criterion v0.3.5 [INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2` [INFO] running `Command { std: "docker" "inspect" "7ce4e167869bd578102c1e371c8673896aeac2a8e683765dbb953cee5ca4a2c1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7ce4e167869bd578102c1e371c8673896aeac2a8e683765dbb953cee5ca4a2c1", kill_on_drop: false }` [INFO] [stdout] 7ce4e167869bd578102c1e371c8673896aeac2a8e683765dbb953cee5ca4a2c1