[INFO] cloning repository https://github.com/xanahopper/too_many_lists
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/xanahopper/too_many_lists" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxanahopper%2Ftoo_many_lists", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxanahopper%2Ftoo_many_lists'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c666f923d983ab93ddb5a8e7913d5545d3820e0f
[INFO] checking xanahopper/too_many_lists against be3da1e8c043bb6f1f335463d3b1335cdf50b03c for pr-162597
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxanahopper%2Ftoo_many_lists" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/xanahopper/too_many_lists
[INFO] finished tweaking git repo https://github.com/xanahopper/too_many_lists
[INFO] tweaked toml for git repo https://github.com/xanahopper/too_many_lists written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/xanahopper/too_many_lists on toolchain be3da1e8c043bb6f1f335463d3b1335cdf50b03c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+be3da1e8c043bb6f1f335463d3b1335cdf50b03c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/xanahopper/too_many_lists 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" "+be3da1e8c043bb6f1f335463d3b1335cdf50b03c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: binary `linked_list` should have a kebab-case name
[INFO] [stderr]    |
[INFO] [stderr]  1 | /workspace/builds/worker-7-tc2/source/target/.../linked_list
[INFO] [stderr]    |                                                  ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::non_kebab_case_bins` is set to `warn` by default
[INFO] [stderr] help: to change the binary name to `linked-list`, convert `package.name`
[INFO] [stderr]   --> Cargo.toml:6:8
[INFO] [stderr]    |
[INFO] [stderr]  6 - name = "linked_list"
[INFO] [stderr]  6 + name = "linked-list"
[INFO] [stderr]    |
[INFO] [stderr] help: to change the binary name to `linked-list`, specify `bin.name`
[INFO] [stderr]   --> Cargo.toml:7:19
[INFO] [stderr]    |
[INFO] [stderr]  7 ~ version = "0.1.0"
[INFO] [stderr]  8 + [[bin]]
[INFO] [stderr]  9 + name = "linked-list"
[INFO] [stderr] 10 + path = "src/main.rs"
[INFO] [stderr]    |
[INFO] [stderr] warning: `linked_list` (manifest) generated 1 warning
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:8683fc1fc2eb5c9ac98e0d076ab094b2ffac7f99da555d2b6a2e27f346de2ec7" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] d5338390c2565455625931529207b5cf396a3f8976b9513b8d8fc6f9e71c625c
[INFO] running `Command { std: "docker" "start" "d5338390c2565455625931529207b5cf396a3f8976b9513b8d8fc6f9e71c625c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d5338390c2565455625931529207b5cf396a3f8976b9513b8d8fc6f9e71c625c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "d5338390c2565455625931529207b5cf396a3f8976b9513b8d8fc6f9e71c625c" "/opt/rustwide/cargo-home/bin/cargo" "+be3da1e8c043bb6f1f335463d3b1335cdf50b03c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d5338390c2565455625931529207b5cf396a3f8976b9513b8d8fc6f9e71c625c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "d5338390c2565455625931529207b5cf396a3f8976b9513b8d8fc6f9e71c625c" "/opt/rustwide/cargo-home/bin/cargo" "+be3da1e8c043bb6f1f335463d3b1335cdf50b03c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] warning: binary `linked_list` should have a kebab-case name
[INFO] [stderr]    |
[INFO] [stderr]  1 | /opt/rustwide/target/.../linked_list
[INFO] [stderr]    |                          ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::non_kebab_case_bins` is set to `warn` by default
[INFO] [stderr] help: to change the binary name to `linked-list`, convert `package.name`
[INFO] [stderr]   --> Cargo.toml:6:8
[INFO] [stderr]    |
[INFO] [stderr]  6 - name = "linked_list"
[INFO] [stderr]  6 + name = "linked-list"
[INFO] [stderr]    |
[INFO] [stderr] help: to change the binary name to `linked-list`, specify `bin.name`
[INFO] [stderr]   --> Cargo.toml:7:19
[INFO] [stderr]    |
[INFO] [stderr]  7 ~ version = "0.1.0"
[INFO] [stderr]  8 + [[bin]]
[INFO] [stderr]  9 + name = "linked-list"
[INFO] [stderr] 10 + path = "src/main.rs"
[INFO] [stderr]    |
[INFO] [stderr] warning: `linked_list` (manifest) generated 1 warning
[INFO] [stderr]     Checking linked_list v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `super::List`
[INFO] [stdout]   --> src/first.rs:53:9
[INFO] [stdout]    |
[INFO] [stdout] 53 |     use super::List;
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::mem`
[INFO] [stdout]  --> src/second.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::mem;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::List`
[INFO] [stdout]    --> src/second.rs:110:9
[INFO] [stdout]     |
[INFO] [stdout] 110 |     use super::List;
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::mem`
[INFO] [stdout]  --> src/second.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::mem;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/second.rs:60:17
[INFO] [stdout]    |
[INFO] [stdout] 60 |     pub fn iter(&self) -> Iter<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] 60 |     pub fn iter(&self) -> Iter<'_, T> {
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/second.rs:64:21
[INFO] [stdout]    |
[INFO] [stdout] 64 |     pub fn iter_mut(&mut self) -> IterMut<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] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 64 |     pub fn iter_mut(&mut self) -> IterMut<'_, T> {
[INFO] [stdout]    |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/second.rs:60:17
[INFO] [stdout]    |
[INFO] [stdout] 60 |     pub fn iter(&self) -> Iter<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] 60 |     pub fn iter(&self) -> Iter<'_, T> {
[INFO] [stdout]    |                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/second.rs:64:21
[INFO] [stdout]    |
[INFO] [stdout] 64 |     pub fn iter_mut(&mut self) -> IterMut<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] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 64 |     pub fn iter_mut(&mut self) -> IterMut<'_, T> {
[INFO] [stdout]    |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.12s
[INFO] running `Command { std: "docker" "inspect" "d5338390c2565455625931529207b5cf396a3f8976b9513b8d8fc6f9e71c625c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5338390c2565455625931529207b5cf396a3f8976b9513b8d8fc6f9e71c625c", kill_on_drop: false }`
[INFO] [stdout] d5338390c2565455625931529207b5cf396a3f8976b9513b8d8fc6f9e71c625c
