[INFO] cloning repository https://github.com/notherno/rust-hello
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/notherno/rust-hello" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnotherno%2Frust-hello", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnotherno%2Frust-hello'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2794cc4379f49f883d02f4cd5bcbdd549449ebd0
[INFO] testing notherno/rust-hello against try#ecabaf78506b7a4668d42dc20268c086b93f0fad for pr-87041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnotherno%2Frust-hello" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/notherno/rust-hello on toolchain ecabaf78506b7a4668d42dc20268c086b93f0fad
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/notherno/rust-hello
[INFO] finished tweaking git repo https://github.com/notherno/rust-hello
[INFO] tweaked toml for git repo https://github.com/notherno/rust-hello written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/notherno/rust-hello already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rand v0.5.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3b421263ce9f48ee47015b9fd71a8668321d5a2e3ff9f7dc0fedc29292eb5675
[INFO] running `Command { std: "docker" "start" "-a" "3b421263ce9f48ee47015b9fd71a8668321d5a2e3ff9f7dc0fedc29292eb5675", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3b421263ce9f48ee47015b9fd71a8668321d5a2e3ff9f7dc0fedc29292eb5675", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b421263ce9f48ee47015b9fd71a8668321d5a2e3ff9f7dc0fedc29292eb5675", kill_on_drop: false }`
[INFO] [stdout] 3b421263ce9f48ee47015b9fd71a8668321d5a2e3ff9f7dc0fedc29292eb5675
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 51b5bbc9a6c19b74fecc7c311b9c61fc6337021ca4a812fa2b61a14fc6dea6c7
[INFO] running `Command { std: "docker" "start" "-a" "51b5bbc9a6c19b74fecc7c311b9c61fc6337021ca4a812fa2b61a14fc6dea6c7", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-hello v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `secret_number`
[INFO] [stdout]  --> src/main.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let secret_number = rand::thread_rng().gen_range(1, 101);
[INFO] [stdout]   |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_secret_number`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` 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 0.94s
[INFO] running `Command { std: "docker" "inspect" "51b5bbc9a6c19b74fecc7c311b9c61fc6337021ca4a812fa2b61a14fc6dea6c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51b5bbc9a6c19b74fecc7c311b9c61fc6337021ca4a812fa2b61a14fc6dea6c7", kill_on_drop: false }`
[INFO] [stdout] 51b5bbc9a6c19b74fecc7c311b9c61fc6337021ca4a812fa2b61a14fc6dea6c7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f941d597103b184c46f3f7b23bdffc5b600d0558387e8d0834ee5bb227915811
[INFO] running `Command { std: "docker" "start" "-a" "f941d597103b184c46f3f7b23bdffc5b600d0558387e8d0834ee5bb227915811", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-hello v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `secret_number`
[INFO] [stdout]  --> src/main.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let secret_number = rand::thread_rng().gen_range(1, 101);
[INFO] [stdout]   |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_secret_number`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` 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 0.63s
[INFO] running `Command { std: "docker" "inspect" "f941d597103b184c46f3f7b23bdffc5b600d0558387e8d0834ee5bb227915811", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f941d597103b184c46f3f7b23bdffc5b600d0558387e8d0834ee5bb227915811", kill_on_drop: false }`
[INFO] [stdout] f941d597103b184c46f3f7b23bdffc5b600d0558387e8d0834ee5bb227915811
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] df400da696e028c814b7aa253079bf0f1c1c33515f0f0e123eba1d89a70cddd2
[INFO] running `Command { std: "docker" "start" "-a" "df400da696e028c814b7aa253079bf0f1c1c33515f0f0e123eba1d89a70cddd2", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: unused variable: `secret_number`
[INFO] [stdout] running 0 tests
[INFO] [stderr]  --> src/main.rs:9:9
[INFO] [stdout] 
[INFO] [stderr]   |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 9 |     let secret_number = rand::thread_rng().gen_range(1, 101);
[INFO] [stdout] 
[INFO] [stderr]   |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_secret_number`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_hello-531bdd7c31ba5f04)
[INFO] running `Command { std: "docker" "inspect" "df400da696e028c814b7aa253079bf0f1c1c33515f0f0e123eba1d89a70cddd2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df400da696e028c814b7aa253079bf0f1c1c33515f0f0e123eba1d89a70cddd2", kill_on_drop: false }`
[INFO] [stdout] df400da696e028c814b7aa253079bf0f1c1c33515f0f0e123eba1d89a70cddd2