[INFO] cloning repository https://github.com/OBIAGWUNNAMDI1/new_list
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/OBIAGWUNNAMDI1/new_list" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FOBIAGWUNNAMDI1%2Fnew_list", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FOBIAGWUNNAMDI1%2Fnew_list'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3cfd714eab7387795a5f0d0159b045250f3f6c33
[INFO] checking OBIAGWUNNAMDI1/new_list against master#af4a5a13a15fa0c60e06321077ef452f769b42fd for pr-122960-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FOBIAGWUNNAMDI1%2Fnew_list" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/OBIAGWUNNAMDI1/new_list on toolchain af4a5a13a15fa0c60e06321077ef452f769b42fd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/OBIAGWUNNAMDI1/new_list
[INFO] finished tweaking git repo https://github.com/OBIAGWUNNAMDI1/new_list
[INFO] tweaked toml for git repo https://github.com/OBIAGWUNNAMDI1/new_list written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/OBIAGWUNNAMDI1/new_list 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" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9d865cc0e0761c9f55bd1c3132d3031817be5448116f147e063e9fce85bf2371
[INFO] running `Command { std: "docker" "start" "-a" "9d865cc0e0761c9f55bd1c3132d3031817be5448116f147e063e9fce85bf2371", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9d865cc0e0761c9f55bd1c3132d3031817be5448116f147e063e9fce85bf2371", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d865cc0e0761c9f55bd1c3132d3031817be5448116f147e063e9fce85bf2371", kill_on_drop: false }`
[INFO] [stdout] 9d865cc0e0761c9f55bd1c3132d3031817be5448116f147e063e9fce85bf2371
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] efa3f44118693bf841cb61cafb5515e949b6f67146a5cd45b0093f057c19c484
[INFO] running `Command { std: "docker" "start" "-a" "efa3f44118693bf841cb61cafb5515e949b6f67146a5cd45b0093f057c19c484", kill_on_drop: false }`
[INFO] [stderr]     Checking new_list v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `super::List`
[INFO] [stdout]   --> src/lib.rs:49:9
[INFO] [stdout]    |
[INFO] [stdout] 49 |     use super::List;
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: if this is a test module, consider adding a `#[cfg(test)]` to the containing module
[INFO] [stdout]   --> src/lib.rs:48:1
[INFO] [stdout]    |
[INFO] [stdout] 48 | mod test{
[INFO] [stdout]    | ^^^^^^^^
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> src/errors.rs:5:4
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn main(){
[INFO] [stdout]   |    ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> src/collections.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn main () {
[INFO] [stdout]   |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `Node` should have a snake case name
[INFO] [stdout]   --> src/lib.rs:37:24
[INFO] [stdout]    |
[INFO] [stdout] 37 |             Link::More(Node) => {
[INFO] [stdout]    |                        ^^^^ help: convert the identifier to snake case: `node`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `V` should have a snake case name
[INFO] [stdout]  --> src/collections.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | let mut V= vec![24,35,65];
[INFO] [stdout]   |         ^ help: convert the identifier to snake case (notice the capitalization): `v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `I` should have a snake case name
[INFO] [stdout]   --> src/collections.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | for I in &mut V{
[INFO] [stdout]    |     ^ help: convert the identifier to snake case (notice the capitalization): `i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> src/errors.rs:5:4
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn main(){
[INFO] [stdout]   |    ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `main` is never used
[INFO] [stdout]  --> src/collections.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn main () {
[INFO] [stdout]   |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `Node` should have a snake case name
[INFO] [stdout]   --> src/lib.rs:37:24
[INFO] [stdout]    |
[INFO] [stdout] 37 |             Link::More(Node) => {
[INFO] [stdout]    |                        ^^^^ help: convert the identifier to snake case: `node`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `V` should have a snake case name
[INFO] [stdout]  --> src/collections.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | let mut V= vec![24,35,65];
[INFO] [stdout]   |         ^ help: convert the identifier to snake case (notice the capitalization): `v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `I` should have a snake case name
[INFO] [stdout]   --> src/collections.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | for I in &mut V{
[INFO] [stdout]    |     ^ help: convert the identifier to snake case (notice the capitalization): `i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] running `Command { std: "docker" "inspect" "efa3f44118693bf841cb61cafb5515e949b6f67146a5cd45b0093f057c19c484", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "efa3f44118693bf841cb61cafb5515e949b6f67146a5cd45b0093f057c19c484", kill_on_drop: false }`
[INFO] [stdout] efa3f44118693bf841cb61cafb5515e949b6f67146a5cd45b0093f057c19c484