[INFO] cloning repository https://github.com/ryosk7/rust-lesson
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ryosk7/rust-lesson" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fryosk7%2Frust-lesson", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fryosk7%2Frust-lesson'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b15de9a757ccd07640abcb6acabbe2f349e5752f
[INFO] checking ryosk7/rust-lesson against master#4c5f6e6277b89e47d73a192078697f7a5f3dc0ac for pr-97086
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fryosk7%2Frust-lesson" "/workspace/builds/worker-51/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-51/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ryosk7/rust-lesson on toolchain 4c5f6e6277b89e47d73a192078697f7a5f3dc0ac
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4c5f6e6277b89e47d73a192078697f7a5f3dc0ac" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ryosk7/rust-lesson
[INFO] finished tweaking git repo https://github.com/ryosk7/rust-lesson
[INFO] tweaked toml for git repo https://github.com/ryosk7/rust-lesson written to /workspace/builds/worker-51/source/Cargo.toml
[INFO] crate git repo https://github.com/ryosk7/rust-lesson already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4c5f6e6277b89e47d73a192078697f7a5f3dc0ac" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/ryosk7/lib-demo`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+4c5f6e6277b89e47d73a192078697f7a5f3dc0ac" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5620a2b5aaff17ba804cb80eebe0c3ae7e7d7edb31ee903c5b0c31c6eb9bfc07
[INFO] running `Command { std: "docker" "start" "-a" "5620a2b5aaff17ba804cb80eebe0c3ae7e7d7edb31ee903c5b0c31c6eb9bfc07", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5620a2b5aaff17ba804cb80eebe0c3ae7e7d7edb31ee903c5b0c31c6eb9bfc07", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5620a2b5aaff17ba804cb80eebe0c3ae7e7d7edb31ee903c5b0c31c6eb9bfc07", kill_on_drop: false }`
[INFO] [stdout] 5620a2b5aaff17ba804cb80eebe0c3ae7e7d7edb31ee903c5b0c31c6eb9bfc07
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-51/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+4c5f6e6277b89e47d73a192078697f7a5f3dc0ac" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c3a2c6df4d5ca614dfe1033e87c34015001d3639c86689ea0b98b49043642feb
[INFO] running `Command { std: "docker" "start" "-a" "c3a2c6df4d5ca614dfe1033e87c34015001d3639c86689ea0b98b49043642feb", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.123
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]     Checking getrandom v0.2.6
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking lib_demo v0.1.0 (https://github.com/ryosk7/lib-demo#6415365a)
[INFO] [stderr]     Checking rust-lesson v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct is never constructed: `Rectangle`
[INFO] [stdout]  --> src/unit_test.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Rectangle {
[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: `compare_area`
[INFO] [stdout]  --> src/unit_test.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 |     fn compare_area(&self, other: &Rectangle) -> bool {
[INFO] [stdout]   |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `double_value`
[INFO] [stdout]   --> src/unit_test.rs:12:4
[INFO] [stdout]    |
[INFO] [stdout] 12 | fn double_value(a: i32) -> i32 {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `greeting`
[INFO] [stdout]   --> src/unit_test.rs:15:4
[INFO] [stdout]    |
[INFO] [stdout] 15 | fn greeting(name: &str) -> String {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 36.98s
[INFO] running `Command { std: "docker" "inspect" "c3a2c6df4d5ca614dfe1033e87c34015001d3639c86689ea0b98b49043642feb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3a2c6df4d5ca614dfe1033e87c34015001d3639c86689ea0b98b49043642feb", kill_on_drop: false }`
[INFO] [stdout] c3a2c6df4d5ca614dfe1033e87c34015001d3639c86689ea0b98b49043642feb