[INFO] cloning repository https://github.com/learnwithjason/what-is-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/learnwithjason/what-is-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flearnwithjason%2Fwhat-is-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flearnwithjason%2Fwhat-is-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1c889a6cf4501b5889f8daa894595834e02092e8
[INFO] testing learnwithjason/what-is-rust against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flearnwithjason%2Fwhat-is-rust" "/workspace/builds/worker-80/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-80/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/learnwithjason/what-is-rust on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/learnwithjason/what-is-rust
[INFO] finished tweaking git repo https://github.com/learnwithjason/what-is-rust
[INFO] tweaked toml for git repo https://github.com/learnwithjason/what-is-rust written to /workspace/builds/worker-80/source/Cargo.toml
[INFO] crate git repo https://github.com/learnwithjason/what-is-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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-80/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 36de90c7def57a137587048ec3a002f63a188354b2e6b3ea4ed818e9c9894cbc
[INFO] running `Command { std: "docker" "start" "-a" "36de90c7def57a137587048ec3a002f63a188354b2e6b3ea4ed818e9c9894cbc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "36de90c7def57a137587048ec3a002f63a188354b2e6b3ea4ed818e9c9894cbc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36de90c7def57a137587048ec3a002f63a188354b2e6b3ea4ed818e9c9894cbc", kill_on_drop: false }`
[INFO] [stdout] 36de90c7def57a137587048ec3a002f63a188354b2e6b3ea4ed818e9c9894cbc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 275a9cb4a89632236781c793de38bf5b23d8954934282f3da021d8d4fe0edd7a
[INFO] running `Command { std: "docker" "start" "-a" "275a9cb4a89632236781c793de38bf5b23d8954934282f3da021d8d4fe0edd7a", kill_on_drop: false }`
[INFO] [stderr]    Compiling what-is-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `color`
[INFO] [stdout]  --> src/main.rs:8:3
[INFO] [stdout]   |
[INFO] [stdout] 8 |   color: Color,
[INFO] [stdout]   |   ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.61s
[INFO] running `Command { std: "docker" "inspect" "275a9cb4a89632236781c793de38bf5b23d8954934282f3da021d8d4fe0edd7a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "275a9cb4a89632236781c793de38bf5b23d8954934282f3da021d8d4fe0edd7a", kill_on_drop: false }`
[INFO] [stdout] 275a9cb4a89632236781c793de38bf5b23d8954934282f3da021d8d4fe0edd7a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5704c6c070625daba1b43df3baebf6ef0dde0a1ba0ff2695f1d6583d6be6d76b
[INFO] running `Command { std: "docker" "start" "-a" "5704c6c070625daba1b43df3baebf6ef0dde0a1ba0ff2695f1d6583d6be6d76b", kill_on_drop: false }`
[INFO] [stderr]    Compiling what-is-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `color`
[INFO] [stdout]  --> src/main.rs:8:3
[INFO] [stdout]   |
[INFO] [stdout] 8 |   color: Color,
[INFO] [stdout]   |   ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.55s
[INFO] running `Command { std: "docker" "inspect" "5704c6c070625daba1b43df3baebf6ef0dde0a1ba0ff2695f1d6583d6be6d76b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5704c6c070625daba1b43df3baebf6ef0dde0a1ba0ff2695f1d6583d6be6d76b", kill_on_drop: false }`
[INFO] [stdout] 5704c6c070625daba1b43df3baebf6ef0dde0a1ba0ff2695f1d6583d6be6d76b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3a1210f4e9975f60e6f5e656bc8bccdcc5f3e8d340a18be0d499d66ee209cf61
[INFO] running `Command { std: "docker" "start" "-a" "3a1210f4e9975f60e6f5e656bc8bccdcc5f3e8d340a18be0d499d66ee209cf61", kill_on_drop: false }`
[INFO] [stderr] warning: field is never read: `color`
[INFO] [stderr]  --> src/main.rs:8:3
[INFO] [stderr]   |
[INFO] [stderr] 8 |   color: Color,
[INFO] [stderr]   |   ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `what-is-rust` (bin "what-is-rust" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/what_is_rust-25a6b78706188f10)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "3a1210f4e9975f60e6f5e656bc8bccdcc5f3e8d340a18be0d499d66ee209cf61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a1210f4e9975f60e6f5e656bc8bccdcc5f3e8d340a18be0d499d66ee209cf61", kill_on_drop: false }`
[INFO] [stdout] 3a1210f4e9975f60e6f5e656bc8bccdcc5f3e8d340a18be0d499d66ee209cf61