[INFO] cloning repository https://github.com/Sarsoo/rusty-playground
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Sarsoo/rusty-playground" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSarsoo%2Frusty-playground", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSarsoo%2Frusty-playground'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c1e100650cf53d938b9e086f389a42c4c56ee13b
[INFO] checking Sarsoo/rusty-playground against master#39b841dfe36f90a7cd111e7f0c55f32594f6e578 for pr-77035
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSarsoo%2Frusty-playground" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Sarsoo/rusty-playground on toolchain 39b841dfe36f90a7cd111e7f0c55f32594f6e578
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Sarsoo/rusty-playground
[INFO] finished tweaking git repo https://github.com/Sarsoo/rusty-playground
[INFO] tweaked toml for git repo https://github.com/Sarsoo/rusty-playground written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/Sarsoo/rusty-playground already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 956f234f99adaf16a7b1a35c618b648b5cea603a9905a1766a1fd7cb4ca660db
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "956f234f99adaf16a7b1a35c618b648b5cea603a9905a1766a1fd7cb4ca660db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "956f234f99adaf16a7b1a35c618b648b5cea603a9905a1766a1fd7cb4ca660db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "956f234f99adaf16a7b1a35c618b648b5cea603a9905a1766a1fd7cb4ca660db", kill_on_drop: false }`
[INFO] [stdout] 956f234f99adaf16a7b1a35c618b648b5cea603a9905a1766a1fd7cb4ca660db
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 91a4effc017274b39889d1ade07a83eeeded99cbfd6f47c5e2e7a064f958a9f7
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "91a4effc017274b39889d1ade07a83eeeded99cbfd6f47c5e2e7a064f958a9f7", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking rusty-playground v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]    --> src/main.rs:189:9
[INFO] [stdout]     |
[INFO] [stdout] 189 |     use super::*;
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]  --> src/iterate.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 |         fn new() -> Counter {
[INFO] [stdout]   |            ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `dot`
[INFO] [stdout]    --> src/main.rs:147:8
[INFO] [stdout]     |
[INFO] [stdout] 147 |     fn dot(&self, other: &Vector3) -> i32 {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `ColourChannel`
[INFO] [stdout]    --> src/main.rs:169:6
[INFO] [stdout]     |
[INFO] [stdout] 169 | enum ColourChannel {
[INFO] [stdout]     |      ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `IpAddr`
[INFO] [stdout]    --> src/main.rs:175:6
[INFO] [stdout]     |
[INFO] [stdout] 175 | enum IpAddr {
[INFO] [stdout]     |      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]  --> src/iterate.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 |         fn new() -> Counter {
[INFO] [stdout]   |            ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `dot`
[INFO] [stdout]    --> src/main.rs:147:8
[INFO] [stdout]     |
[INFO] [stdout] 147 |     fn dot(&self, other: &Vector3) -> i32 {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `ColourChannel`
[INFO] [stdout]    --> src/main.rs:169:6
[INFO] [stdout]     |
[INFO] [stdout] 169 | enum ColourChannel {
[INFO] [stdout]     |      ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `IpAddr`
[INFO] [stdout]    --> src/main.rs:175:6
[INFO] [stdout]     |
[INFO] [stdout] 175 | enum IpAddr {
[INFO] [stdout]     |      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.77s
[INFO] running `Command { std: "docker" "inspect" "91a4effc017274b39889d1ade07a83eeeded99cbfd6f47c5e2e7a064f958a9f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "91a4effc017274b39889d1ade07a83eeeded99cbfd6f47c5e2e7a064f958a9f7", kill_on_drop: false }`
[INFO] [stdout] 91a4effc017274b39889d1ade07a83eeeded99cbfd6f47c5e2e7a064f958a9f7