[INFO] cloning repository https://github.com/icechair/spring-challenge-2021
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/icechair/spring-challenge-2021" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ficechair%2Fspring-challenge-2021", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ficechair%2Fspring-challenge-2021'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 55bf79b45e3f824b6c0a241d5a4d817fb75c442d
[INFO] checking icechair/spring-challenge-2021 against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ficechair%2Fspring-challenge-2021" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/icechair/spring-challenge-2021 on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/icechair/spring-challenge-2021
[INFO] finished tweaking git repo https://github.com/icechair/spring-challenge-2021
[INFO] tweaked toml for git repo https://github.com/icechair/spring-challenge-2021 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/icechair/spring-challenge-2021 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] adf8e8b24fe504707cdf4461bbb297266cefce394ceafb9bbc74c8f6533fa302
[INFO] running `Command { std: "docker" "start" "-a" "adf8e8b24fe504707cdf4461bbb297266cefce394ceafb9bbc74c8f6533fa302", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "adf8e8b24fe504707cdf4461bbb297266cefce394ceafb9bbc74c8f6533fa302", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "adf8e8b24fe504707cdf4461bbb297266cefce394ceafb9bbc74c8f6533fa302", kill_on_drop: false }`
[INFO] [stdout] adf8e8b24fe504707cdf4461bbb297266cefce394ceafb9bbc74c8f6533fa302
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 012b03c1d2ddf8302befe13a7f027bb7356417aa20e31af2c9014b8b7bf81bf9
[INFO] running `Command { std: "docker" "start" "-a" "012b03c1d2ddf8302befe13a7f027bb7356417aa20e31af2c9014b8b7bf81bf9", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking springbot v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `sun_direction`
[INFO] [stdout]   --> src/main.rs:20:4
[INFO] [stdout]    |
[INFO] [stdout] 20 | fn sun_direction(day: i32) -> usize {
[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: `next`
[INFO] [stdout]   --> src/main.rs:50:10
[INFO] [stdout]    |
[INFO] [stdout] 50 |   pub fn next(&self, direction: usize) -> Option<i32> {
[INFO] [stdout]    |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `cast_shadows`
[INFO] [stdout]   --> src/main.rs:76:10
[INFO] [stdout]    |
[INFO] [stdout] 76 |   pub fn cast_shadows(&mut self, direction: usize, trees: &Vec<Tree>) {
[INFO] [stdout]    |          ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `sun_direction`
[INFO] [stdout]   --> src/main.rs:20:4
[INFO] [stdout]    |
[INFO] [stdout] 20 | fn sun_direction(day: i32) -> usize {
[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: `next`
[INFO] [stdout]   --> src/main.rs:50:10
[INFO] [stdout]    |
[INFO] [stdout] 50 |   pub fn next(&self, direction: usize) -> Option<i32> {
[INFO] [stdout]    |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `cast_shadows`
[INFO] [stdout]   --> src/main.rs:76:10
[INFO] [stdout]    |
[INFO] [stdout] 76 |   pub fn cast_shadows(&mut self, direction: usize, trees: &Vec<Tree>) {
[INFO] [stdout]    |          ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.58s
[INFO] running `Command { std: "docker" "inspect" "012b03c1d2ddf8302befe13a7f027bb7356417aa20e31af2c9014b8b7bf81bf9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "012b03c1d2ddf8302befe13a7f027bb7356417aa20e31af2c9014b8b7bf81bf9", kill_on_drop: false }`
[INFO] [stdout] 012b03c1d2ddf8302befe13a7f027bb7356417aa20e31af2c9014b8b7bf81bf9