[INFO] cloning repository https://github.com/dianfishekqi/learning_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dianfishekqi/learning_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdianfishekqi%2Flearning_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdianfishekqi%2Flearning_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 43e2209bf6797c1457dfe021ac8b6b84c67e4d6a
[INFO] testing dianfishekqi/learning_rust against master#733b47ea4b1b86216f14ef56e49440c33933f230+rustflags=-Copt-level=3 for pr-138759
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdianfishekqi%2Flearning_rust" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/dianfishekqi/learning_rust
[INFO] finished tweaking git repo https://github.com/dianfishekqi/learning_rust
[INFO] tweaked toml for git repo https://github.com/dianfishekqi/learning_rust written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/dianfishekqi/learning_rust on toolchain 733b47ea4b1b86216f14ef56e49440c33933f230
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/dianfishekqi/learning_rust 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" "+733b47ea4b1b86216f14ef56e49440c33933f230" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d2c6191d01b41a0350548cf05e13b0c51fbe4e5baf58a2a921e36ea7fa0fd563
[INFO] running `Command { std: "docker" "start" "-a" "d2c6191d01b41a0350548cf05e13b0c51fbe4e5baf58a2a921e36ea7fa0fd563", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d2c6191d01b41a0350548cf05e13b0c51fbe4e5baf58a2a921e36ea7fa0fd563", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2c6191d01b41a0350548cf05e13b0c51fbe4e5baf58a2a921e36ea7fa0fd563", kill_on_drop: false }`
[INFO] [stdout] d2c6191d01b41a0350548cf05e13b0c51fbe4e5baf58a2a921e36ea7fa0fd563
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b7c46941265dcf9d08981ad848ab66080c6ba6d30d3d9665b6d63e3ed4174403
[INFO] running `Command { std: "docker" "start" "-a" "b7c46941265dcf9d08981ad848ab66080c6ba6d30d3d9665b6d63e3ed4174403", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]    Compiling crossbeam-utils v0.8.14
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.13
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]    Compiling rayon-core v1.10.1
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]    Compiling crossbeam-queue v0.3.8
[INFO] [stderr]    Compiling either v1.8.0
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling adler32 v1.2.0
[INFO] [stderr]    Compiling lzw v0.10.0
[INFO] [stderr]    Compiling inflate v0.2.0
[INFO] [stderr]    Compiling memoffset v0.7.1
[INFO] [stderr]    Compiling scoped_threadpool v0.1.9
[INFO] [stderr]    Compiling bloom_filter v0.1.0 (/opt/rustwide/workdir/crates/bloom_filter)
[INFO] [stderr]    Compiling gif v0.9.2
[INFO] [stderr]    Compiling lists v0.1.0 (/opt/rustwide/workdir/crates/lists)
[INFO] [stderr]    Compiling deflate v0.7.20
[INFO] [stderr]    Compiling pointers v0.1.0 (/opt/rustwide/workdir/crates/pointers)
[INFO] [stderr]    Compiling leetcode v0.1.0 (/opt/rustwide/workdir/crates/leetcode)
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> crates/lists/src/double_linked_list.rs:110:23
[INFO] [stdout]     |
[INFO] [stdout] 110 |     pub fn peek_front(&self) -> Option<Ref<T>> {
[INFO] [stdout]     |                       ^^^^^            ------ the lifetime gets resolved as `'_`
[INFO] [stdout]     |                       |
[INFO] [stdout]     |                       this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 110 |     pub fn peek_front(&self) -> Option<Ref<'_, T>> {
[INFO] [stdout]     |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> crates/lists/src/double_linked_list.rs:116:22
[INFO] [stdout]     |
[INFO] [stdout] 116 |     pub fn peek_back(&self) -> Option<Ref<T>> {
[INFO] [stdout]     |                      ^^^^^            ------ the lifetime gets resolved as `'_`
[INFO] [stdout]     |                      |
[INFO] [stdout]     |                      this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 116 |     pub fn peek_back(&self) -> Option<Ref<'_, T>> {
[INFO] [stdout]     |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> crates/lists/src/double_linked_list.rs:122:26
[INFO] [stdout]     |
[INFO] [stdout] 122 |     pub fn peek_back_mut(&mut self) -> Option<RefMut<T>> {
[INFO] [stdout]     |                          ^^^^^^^^^            --------- the lifetime gets resolved as `'_`
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 122 |     pub fn peek_back_mut(&mut self) -> Option<RefMut<'_, T>> {
[INFO] [stdout]     |                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> crates/lists/src/double_linked_list.rs:128:27
[INFO] [stdout]     |
[INFO] [stdout] 128 |     pub fn peek_front_mut(&mut self) -> Option<RefMut<T>> {
[INFO] [stdout]     |                           ^^^^^^^^^            --------- the lifetime gets resolved as `'_`
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 128 |     pub fn peek_front_mut(&mut self) -> Option<RefMut<'_, T>> {
[INFO] [stdout]     |                                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling crossbeam-channel v0.5.6
[INFO] [stderr]    Compiling getrandom v0.2.8
[INFO] [stderr]    Compiling num_cpus v1.16.0
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling crossbeam-deque v0.8.2
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling crossbeam v0.8.2
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling num-traits v0.1.43
[INFO] [stderr]    Compiling num-complex v0.4.2
[INFO] [stderr]    Compiling enum_primitive v0.1.1
[INFO] [stderr]    Compiling num-rational v0.1.42
[INFO] [stderr]    Compiling rayon v1.6.1
[INFO] [stderr]    Compiling png v0.7.0
[INFO] [stderr]    Compiling sorting v0.1.0 (/opt/rustwide/workdir/crates/sorting)
[INFO] [stderr]    Compiling num v0.4.0
[INFO] [stderr]    Compiling jpeg-decoder v0.1.22
[INFO] [stderr]    Compiling image v0.13.0
[INFO] [stderr]    Compiling mandelbrot v0.1.0 (/opt/rustwide/workdir/crates/mandelbrot)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 41.75s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: bitflags v0.7.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 3`
[INFO] running `Command { std: "docker" "inspect" "b7c46941265dcf9d08981ad848ab66080c6ba6d30d3d9665b6d63e3ed4174403", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b7c46941265dcf9d08981ad848ab66080c6ba6d30d3d9665b6d63e3ed4174403", kill_on_drop: false }`
[INFO] [stdout] b7c46941265dcf9d08981ad848ab66080c6ba6d30d3d9665b6d63e3ed4174403
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2eeeb8cb501aa19afd1bcd45d7e501092f4cc89ed40b560d57b851f932da71e9
[INFO] running `Command { std: "docker" "start" "-a" "2eeeb8cb501aa19afd1bcd45d7e501092f4cc89ed40b560d57b851f932da71e9", kill_on_drop: false }`
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> crates/lists/src/double_linked_list.rs:110:23
[INFO] [stdout]     |
[INFO] [stdout] 110 |     pub fn peek_front(&self) -> Option<Ref<T>> {
[INFO] [stdout]     |                       ^^^^^            ------ the lifetime gets resolved as `'_`
[INFO] [stdout]     |                       |
[INFO] [stdout]     |                       this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 110 |     pub fn peek_front(&self) -> Option<Ref<'_, T>> {
[INFO] [stdout]     |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> crates/lists/src/double_linked_list.rs:116:22
[INFO] [stdout]     |
[INFO] [stdout] 116 |     pub fn peek_back(&self) -> Option<Ref<T>> {
[INFO] [stdout]     |                      ^^^^^            ------ the lifetime gets resolved as `'_`
[INFO] [stdout]     |                      |
[INFO] [stdout]     |                      this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 116 |     pub fn peek_back(&self) -> Option<Ref<'_, T>> {
[INFO] [stdout]     |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> crates/lists/src/double_linked_list.rs:122:26
[INFO] [stdout]     |
[INFO] [stdout] 122 |     pub fn peek_back_mut(&mut self) -> Option<RefMut<T>> {
[INFO] [stdout]     |                          ^^^^^^^^^            --------- the lifetime gets resolved as `'_`
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 122 |     pub fn peek_back_mut(&mut self) -> Option<RefMut<'_, T>> {
[INFO] [stdout]     |                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> crates/lists/src/double_linked_list.rs:128:27
[INFO] [stdout]     |
[INFO] [stdout] 128 |     pub fn peek_front_mut(&mut self) -> Option<RefMut<T>> {
[INFO] [stdout]     |                           ^^^^^^^^^            --------- the lifetime gets resolved as `'_`
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 128 |     pub fn peek_front_mut(&mut self) -> Option<RefMut<'_, T>> {
[INFO] [stdout]     |                                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling bloom_filter v0.1.0 (/opt/rustwide/workdir/crates/bloom_filter)
[INFO] [stderr]    Compiling lists v0.1.0 (/opt/rustwide/workdir/crates/lists)
[INFO] [stderr]    Compiling leetcode v0.1.0 (/opt/rustwide/workdir/crates/leetcode)
[INFO] [stderr]    Compiling pointers v0.1.0 (/opt/rustwide/workdir/crates/pointers)
[INFO] [stderr]    Compiling sorting v0.1.0 (/opt/rustwide/workdir/crates/sorting)
[INFO] [stderr]    Compiling mandelbrot v0.1.0 (/opt/rustwide/workdir/crates/mandelbrot)
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> crates/lists/src/double_linked_list.rs:110:23
[INFO] [stdout]     |
[INFO] [stdout] 110 |     pub fn peek_front(&self) -> Option<Ref<T>> {
[INFO] [stdout]     |                       ^^^^^            ------ the lifetime gets resolved as `'_`
[INFO] [stdout]     |                       |
[INFO] [stdout]     |                       this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 110 |     pub fn peek_front(&self) -> Option<Ref<'_, T>> {
[INFO] [stdout]     |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> crates/lists/src/double_linked_list.rs:116:22
[INFO] [stdout]     |
[INFO] [stdout] 116 |     pub fn peek_back(&self) -> Option<Ref<T>> {
[INFO] [stdout]     |                      ^^^^^            ------ the lifetime gets resolved as `'_`
[INFO] [stdout]     |                      |
[INFO] [stdout]     |                      this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 116 |     pub fn peek_back(&self) -> Option<Ref<'_, T>> {
[INFO] [stdout]     |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> crates/lists/src/double_linked_list.rs:122:26
[INFO] [stdout]     |
[INFO] [stdout] 122 |     pub fn peek_back_mut(&mut self) -> Option<RefMut<T>> {
[INFO] [stdout]     |                          ^^^^^^^^^            --------- the lifetime gets resolved as `'_`
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 122 |     pub fn peek_back_mut(&mut self) -> Option<RefMut<'_, T>> {
[INFO] [stdout]     |                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> crates/lists/src/double_linked_list.rs:128:27
[INFO] [stdout]     |
[INFO] [stdout] 128 |     pub fn peek_front_mut(&mut self) -> Option<RefMut<T>> {
[INFO] [stdout]     |                           ^^^^^^^^^            --------- the lifetime gets resolved as `'_`
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 128 |     pub fn peek_front_mut(&mut self) -> Option<RefMut<'_, T>> {
[INFO] [stdout]     |                                                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 4.34s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: bitflags v0.7.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 3`
[INFO] running `Command { std: "docker" "inspect" "2eeeb8cb501aa19afd1bcd45d7e501092f4cc89ed40b560d57b851f932da71e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2eeeb8cb501aa19afd1bcd45d7e501092f4cc89ed40b560d57b851f932da71e9", kill_on_drop: false }`
[INFO] [stdout] 2eeeb8cb501aa19afd1bcd45d7e501092f4cc89ed40b560d57b851f932da71e9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 96bf456ff337053c9a72a7804137d49d30e17b20075ed46f22a82d70d30c2226
[INFO] running `Command { std: "docker" "start" "-a" "96bf456ff337053c9a72a7804137d49d30e17b20075ed46f22a82d70d30c2226", kill_on_drop: false }`
[INFO] [stderr] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stderr]    --> crates/lists/src/double_linked_list.rs:110:23
[INFO] [stderr]     |
[INFO] [stderr] 110 |     pub fn peek_front(&self) -> Option<Ref<T>> {
[INFO] [stderr]     |                       ^^^^^            ------ the lifetime gets resolved as `'_`
[INFO] [stderr]     |                       |
[INFO] [stderr]     |                       this lifetime flows to the output
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stderr]     |
[INFO] [stderr] 110 |     pub fn peek_front(&self) -> Option<Ref<'_, T>> {
[INFO] [stderr]     |                                            +++
[INFO] [stderr] 
[INFO] [stderr] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stderr]    --> crates/lists/src/double_linked_list.rs:116:22
[INFO] [stderr]     |
[INFO] [stderr] 116 |     pub fn peek_back(&self) -> Option<Ref<T>> {
[INFO] [stderr]     |                      ^^^^^            ------ the lifetime gets resolved as `'_`
[INFO] [stderr]     |                      |
[INFO] [stderr]     |                      this lifetime flows to the output
[INFO] [stderr]     |
[INFO] [stderr] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stderr]     |
[INFO] [stderr] 116 |     pub fn peek_back(&self) -> Option<Ref<'_, T>> {
[INFO] [stderr]     |                                           +++
[INFO] [stderr] 
[INFO] [stderr] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stderr]    --> crates/lists/src/double_linked_list.rs:122:26
[INFO] [stderr]     |
[INFO] [stderr] 122 |     pub fn peek_back_mut(&mut self) -> Option<RefMut<T>> {
[INFO] [stderr]     |                          ^^^^^^^^^            --------- the lifetime gets resolved as `'_`
[INFO] [stderr]     |                          |
[INFO] [stderr]     |                          this lifetime flows to the output
[INFO] [stderr]     |
[INFO] [stderr] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stderr]     |
[INFO] [stderr] 122 |     pub fn peek_back_mut(&mut self) -> Option<RefMut<'_, T>> {
[INFO] [stderr]     |                                                      +++
[INFO] [stderr] 
[INFO] [stderr] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stderr]    --> crates/lists/src/double_linked_list.rs:128:27
[INFO] [stderr]     |
[INFO] [stderr] 128 |     pub fn peek_front_mut(&mut self) -> Option<RefMut<T>> {
[INFO] [stderr]     |                           ^^^^^^^^^            --------- the lifetime gets resolved as `'_`
[INFO] [stderr]     |                           |
[INFO] [stderr]     |                           this lifetime flows to the output
[INFO] [stderr]     |
[INFO] [stderr] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stderr]     |
[INFO] [stderr] 128 |     pub fn peek_front_mut(&mut self) -> Option<RefMut<'_, T>> {
[INFO] [stderr]     |                                                       +++
[INFO] [stderr] 
[INFO] [stderr] warning: `lists` (lib) generated 4 warnings
[INFO] [stderr] warning: `lists` (lib test) generated 4 warnings (4 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: bitflags v0.7.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 3`
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/bloom_filter-7a8f1fc6097c25dd)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test tests::check_and_insert ... ok
[INFO] [stdout] test tests::insert ... ok
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/leetcode-a5b52541b4b19748)
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 43 tests
[INFO] [stdout] test easy::MoveZeroes ... ok
[INFO] [stdout] test easy::containsDuplicate ... ok
[INFO] [stdout] test easy::dian ... ok
[INFO] [stdout] test easy::duplicateZeros ... ok
[INFO] [stdout] test easy::add_binary ... ok
[INFO] [stdout] test easy::evenDigits ... ok
[INFO] [stdout] test easy::findDisappearedNumbers ... ok
[INFO] [stdout] test easy::fizzBuzz ... ok
[INFO] [stdout] test easy::generateParenthesis ... ok
[INFO] [stdout] test easy::heightChecker ... ok
[INFO] [stdout] test easy::isPalindrome ... ok
[INFO] [stdout] test easy::lengthOfLastWord ... ok
[INFO] [stdout] test easy::longestCommonPrefix ... ok
[INFO] [stdout] test easy::majorityElement ... ok
[INFO] [stdout] test easy::maximumWealth ... ok
[INFO] [stdout] test easy::checkIfNAndItsDoubleExist ... ok
[INFO] [stdout] test easy::mergeTwoSortedLists ... ok
[INFO] [stdout] test easy::middleNode ... ok
[INFO] [stdout] test easy::removeDuplicatesFromSortedArray ... ok
[INFO] [stdout] test easy::removeElement ... ok
[INFO] [stdout] test easy::romanToInt ... ok
[INFO] [stdout] test easy::search_insert ... ok
[INFO] [stdout] test easy::replaceElementsWithGreatestElementOnRightSide ... ok
[INFO] [stdout] test easy::sortArrayByParity ... ok
[INFO] [stdout] test easy::plusOne ... ok
[INFO] [stdout] test easy::sortedSquares ... ok
[INFO] [stdout] test easy::twoSum ... ok
[INFO] [stdout] test easy::strStr ... ok
[INFO] [stdout] test easy::sqrt ... ok
[INFO] [stdout] test easy::validMountainArray ... ok
[INFO] [stdout] test easy::validPalindrome ... ok
[INFO] [stdout] test medium::addTwoNumbers ... ok
[INFO] [stdout] test easy::validAnagram ... ok
[INFO] [stdout] test medium::countAndSay ... ok
[INFO] [stdout] test medium::simplifyPath ... ok
[INFO] [stdout] test easy::mergeSortedArray ... ok
[INFO] [stdout] test easy::validParentheses ... ok
[INFO] [stdout] test medium::lengthOfLongestSubstring ... ok
[INFO] [stdout] test easy::thirdMax ... ok
[INFO] [stdout] test easy::toHex ... ok
[INFO] [stdout] test easy::countBinarySubstrings ... ok
[INFO] [stdout] test medium::groupAnagrams ... FAILED
[INFO] [stderr] error: test failed, to rerun pass `-p leetcode --lib`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/deps/leetcode-a5b52541b4b19748` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "96bf456ff337053c9a72a7804137d49d30e17b20075ed46f22a82d70d30c2226", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "96bf456ff337053c9a72a7804137d49d30e17b20075ed46f22a82d70d30c2226", kill_on_drop: false }`
[INFO] [stdout] 96bf456ff337053c9a72a7804137d49d30e17b20075ed46f22a82d70d30c2226
