[INFO] cloning repository https://github.com/yonyu/algorithms_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/yonyu/algorithms_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyonyu%2Falgorithms_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyonyu%2Falgorithms_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 245e92771cbd946bfc0fa159b78afd228f5c88b2
[INFO] checking yonyu/algorithms_rust against master#507271bc119683008ec719ecee48814e8ac86c65 for pr-146440
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyonyu%2Falgorithms_rust" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/yonyu/algorithms_rust
[INFO] finished tweaking git repo https://github.com/yonyu/algorithms_rust
[INFO] tweaked toml for git repo https://github.com/yonyu/algorithms_rust written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/yonyu/algorithms_rust on toolchain 507271bc119683008ec719ecee48814e8ac86c65
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+507271bc119683008ec719ecee48814e8ac86c65" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/yonyu/algorithms_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" "+507271bc119683008ec719ecee48814e8ac86c65" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+507271bc119683008ec719ecee48814e8ac86c65" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] af77d6ea094c4514c803ff9db078d23f08215fe3d56146fcc863145a08371239
[INFO] running `Command { std: "docker" "start" "-a" "af77d6ea094c4514c803ff9db078d23f08215fe3d56146fcc863145a08371239", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "af77d6ea094c4514c803ff9db078d23f08215fe3d56146fcc863145a08371239", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "af77d6ea094c4514c803ff9db078d23f08215fe3d56146fcc863145a08371239", kill_on_drop: false }`
[INFO] [stdout] af77d6ea094c4514c803ff9db078d23f08215fe3d56146fcc863145a08371239
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+507271bc119683008ec719ecee48814e8ac86c65" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1bf2428cf918477d57b7859b4a023c52d5b348ffa461718717dde9632bd592f4
[INFO] running `Command { std: "docker" "start" "-a" "1bf2428cf918477d57b7859b4a023c52d5b348ffa461718717dde9632bd592f4", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.155
[INFO] [stderr]    Compiling serde v1.0.203
[INFO] [stderr]     Checking regex-syntax v0.8.4
[INFO] [stderr]    Compiling serde_json v1.0.117
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking num-bigint v0.4.6
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking regex-automata v0.4.7
[INFO] [stderr]     Checking regex v1.10.6
[INFO] [stderr]     Checking algorithms_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]   --> src/lists/names_scores.rs:61:26
[INFO] [stdout]    |
[INFO] [stdout] 61 |     name.chars().map(|c| (c as u32 - 'A' as u32 + 1)).sum()
[INFO] [stdout]    |                          ^                         ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 61 -     name.chars().map(|c| (c as u32 - 'A' as u32 + 1)).sum()
[INFO] [stdout] 61 +     name.chars().map(|c| c as u32 - 'A' as u32 + 1).sum()
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]   --> src/lists/names_scores.rs:61:26
[INFO] [stdout]    |
[INFO] [stdout] 61 |     name.chars().map(|c| (c as u32 - 'A' as u32 + 1)).sum()
[INFO] [stdout]    |                          ^                         ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 61 -     name.chars().map(|c| (c as u32 - 'A' as u32 + 1)).sum()
[INFO] [stdout] 61 +     name.chars().map(|c| c as u32 - 'A' as u32 + 1).sum()
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/trees/binary_tree.rs:37:13
[INFO] [stdout]    |
[INFO] [stdout] 37 |     fn iter(&self) -> TreeIter<T> {
[INFO] [stdout]    |             ^^^^^     ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |             |
[INFO] [stdout]    |             the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 37 |     fn iter(&self) -> TreeIter<'_, T> {
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]   --> src/lists/names_scores.rs:61:26
[INFO] [stdout]    |
[INFO] [stdout] 61 |     name.chars().map(|c| (c as u32 - 'A' as u32 + 1)).sum()
[INFO] [stdout]    |                          ^                         ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 61 -     name.chars().map(|c| (c as u32 - 'A' as u32 + 1)).sum()
[INFO] [stdout] 61 +     name.chars().map(|c| c as u32 - 'A' as u32 + 1).sum()
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]   --> src/lists/names_scores.rs:61:26
[INFO] [stdout]    |
[INFO] [stdout] 61 |     name.chars().map(|c| (c as u32 - 'A' as u32 + 1)).sum()
[INFO] [stdout]    |                          ^                         ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 61 -     name.chars().map(|c| (c as u32 - 'A' as u32 + 1)).sum()
[INFO] [stdout] 61 +     name.chars().map(|c| c as u32 - 'A' as u32 + 1).sum()
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/trees/binary_tree.rs:37:13
[INFO] [stdout]    |
[INFO] [stdout] 37 |     fn iter(&self) -> TreeIter<T> {
[INFO] [stdout]    |             ^^^^^     ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |             |
[INFO] [stdout]    |             the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 37 |     fn iter(&self) -> TreeIter<'_, T> {
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/trees/binary_tree.rs:37:13
[INFO] [stdout]    |
[INFO] [stdout] 37 |     fn iter(&self) -> TreeIter<T> {
[INFO] [stdout]    |             ^^^^^     ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |             |
[INFO] [stdout]    |             the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 37 |     fn iter(&self) -> TreeIter<'_, T> {
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/trees/binary_tree.rs:37:13
[INFO] [stdout]    |
[INFO] [stdout] 37 |     fn iter(&self) -> TreeIter<T> {
[INFO] [stdout]    |             ^^^^^     ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |             |
[INFO] [stdout]    |             the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 37 |     fn iter(&self) -> TreeIter<'_, T> {
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.14s
[INFO] running `Command { std: "docker" "inspect" "1bf2428cf918477d57b7859b4a023c52d5b348ffa461718717dde9632bd592f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1bf2428cf918477d57b7859b4a023c52d5b348ffa461718717dde9632bd592f4", kill_on_drop: false }`
[INFO] [stdout] 1bf2428cf918477d57b7859b4a023c52d5b348ffa461718717dde9632bd592f4
