[INFO] cloning repository https://github.com/YoungHaKim7/Rust_fibonacci
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/YoungHaKim7/Rust_fibonacci" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FYoungHaKim7%2FRust_fibonacci", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FYoungHaKim7%2FRust_fibonacci'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5822833271ea20620268b1693dd31745db85a974
[INFO] testing YoungHaKim7/Rust_fibonacci against try#8262275854dc0e5381c9d42d56257d94932c5a87 for pr-90799
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FYoungHaKim7%2FRust_fibonacci" "/workspace/builds/worker-39/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-39/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/YoungHaKim7/Rust_fibonacci on toolchain 8262275854dc0e5381c9d42d56257d94932c5a87
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/YoungHaKim7/Rust_fibonacci
[INFO] finished tweaking git repo https://github.com/YoungHaKim7/Rust_fibonacci
[INFO] tweaked toml for git repo https://github.com/YoungHaKim7/Rust_fibonacci written to /workspace/builds/worker-39/source/Cargo.toml
[INFO] crate git repo https://github.com/YoungHaKim7/Rust_fibonacci already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "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-39/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d8b40756aac122fc4e81293a58d615000160ad1e285c5aabbfcd7c578ccb82dd
[INFO] running `Command { std: "docker" "start" "-a" "d8b40756aac122fc4e81293a58d615000160ad1e285c5aabbfcd7c578ccb82dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d8b40756aac122fc4e81293a58d615000160ad1e285c5aabbfcd7c578ccb82dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d8b40756aac122fc4e81293a58d615000160ad1e285c5aabbfcd7c578ccb82dd", kill_on_drop: false }`
[INFO] [stdout] d8b40756aac122fc4e81293a58d615000160ad1e285c5aabbfcd7c578ccb82dd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 83fb6101ccf61d67e9871efb449d7114829e6edbd98337bf69ef417ea50c0807
[INFO] running `Command { std: "docker" "start" "-a" "83fb6101ccf61d67e9871efb449d7114829e6edbd98337bf69ef417ea50c0807", kill_on_drop: false }`
[INFO] [stderr]    Compiling fibonacci v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `c` is never read
[INFO] [stdout]  --> src/main.rs:4:13
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let mut c = 0;
[INFO] [stdout]   |             ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]   = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.37s
[INFO] running `Command { std: "docker" "inspect" "83fb6101ccf61d67e9871efb449d7114829e6edbd98337bf69ef417ea50c0807", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "83fb6101ccf61d67e9871efb449d7114829e6edbd98337bf69ef417ea50c0807", kill_on_drop: false }`
[INFO] [stdout] 83fb6101ccf61d67e9871efb449d7114829e6edbd98337bf69ef417ea50c0807
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fc47d8d420ecbfab374e270309b512feed709bcc1d6fa3d804b5b55c0ab1aeda
[INFO] running `Command { std: "docker" "start" "-a" "fc47d8d420ecbfab374e270309b512feed709bcc1d6fa3d804b5b55c0ab1aeda", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling fibonacci v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `c` is never read
[INFO] [stdout]  --> src/main.rs:4:13
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let mut c = 0;
[INFO] [stdout]   |             ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]   = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 6.36s
[INFO] running `Command { std: "docker" "inspect" "fc47d8d420ecbfab374e270309b512feed709bcc1d6fa3d804b5b55c0ab1aeda", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc47d8d420ecbfab374e270309b512feed709bcc1d6fa3d804b5b55c0ab1aeda", kill_on_drop: false }`
[INFO] [stdout] fc47d8d420ecbfab374e270309b512feed709bcc1d6fa3d804b5b55c0ab1aeda
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7d141ca236744a6553b462b31afb1ae50e626b3a908a389cb48b85e3eefbe551
[INFO] running `Command { std: "docker" "start" "-a" "7d141ca236744a6553b462b31afb1ae50e626b3a908a389cb48b85e3eefbe551", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: value assigned to `c` is never read
[INFO] [stdout] 
[INFO] [stderr]  --> src/main.rs:4:13
[INFO] [stdout] running 0 tests
[INFO] [stderr]   |
[INFO] [stdout] 
[INFO] [stderr] 4 |     let mut c = 0;
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]   |             ^
[INFO] [stdout] 
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]   = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: `fibonacci` (bin "fibonacci" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 4.68s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/fibonacci-ff736196898c2194)
[INFO] running `Command { std: "docker" "inspect" "7d141ca236744a6553b462b31afb1ae50e626b3a908a389cb48b85e3eefbe551", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d141ca236744a6553b462b31afb1ae50e626b3a908a389cb48b85e3eefbe551", kill_on_drop: false }`
[INFO] [stdout] 7d141ca236744a6553b462b31afb1ae50e626b3a908a389cb48b85e3eefbe551