[INFO] cloning repository https://github.com/deppong/fibonacci-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/deppong/fibonacci-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdeppong%2Ffibonacci-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdeppong%2Ffibonacci-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ea380f32da0950d3769f895f62298c8943d5354f
[INFO] testing deppong/fibonacci-rust against beta-2022-02-22 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdeppong%2Ffibonacci-rust" "/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/deppong/fibonacci-rust on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/deppong/fibonacci-rust
[INFO] finished tweaking git repo https://github.com/deppong/fibonacci-rust
[INFO] tweaked toml for git repo https://github.com/deppong/fibonacci-rust written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/deppong/fibonacci-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fa9e56dda4d795092b0dd4c794886032b0c0724a50384fc4b96c54c4517d6e1b
[INFO] running `Command { std: "docker" "start" "-a" "fa9e56dda4d795092b0dd4c794886032b0c0724a50384fc4b96c54c4517d6e1b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fa9e56dda4d795092b0dd4c794886032b0c0724a50384fc4b96c54c4517d6e1b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa9e56dda4d795092b0dd4c794886032b0c0724a50384fc4b96c54c4517d6e1b", kill_on_drop: false }`
[INFO] [stdout] fa9e56dda4d795092b0dd4c794886032b0c0724a50384fc4b96c54c4517d6e1b
[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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1044c56b0bdf7df3475023d6bf58869bd510d898937bb388d5354fb968b83ae8
[INFO] running `Command { std: "docker" "start" "-a" "1044c56b0bdf7df3475023d6bf58869bd510d898937bb388d5354fb968b83ae8", 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 `fN` is never read
[INFO] [stdout]  --> src/main.rs:2:30
[INFO] [stdout]   |
[INFO] [stdout] 2 |     let (mut f0, mut f1, mut fN) = (0, 1, 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: variable `fN` should have a snake case name
[INFO] [stdout]  --> src/main.rs:2:30
[INFO] [stdout]   |
[INFO] [stdout] 2 |     let (mut f0, mut f1, mut fN) = (0, 1, 0);
[INFO] [stdout]   |                              ^^ help: convert the identifier to snake case: `f_n`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.74s
[INFO] running `Command { std: "docker" "inspect" "1044c56b0bdf7df3475023d6bf58869bd510d898937bb388d5354fb968b83ae8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1044c56b0bdf7df3475023d6bf58869bd510d898937bb388d5354fb968b83ae8", kill_on_drop: false }`
[INFO] [stdout] 1044c56b0bdf7df3475023d6bf58869bd510d898937bb388d5354fb968b83ae8
[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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a1c7bbe2e37f0703b3002c96de7d3c6090fed436565694e091dc5c9621c44c5e
[INFO] running `Command { std: "docker" "start" "-a" "a1c7bbe2e37f0703b3002c96de7d3c6090fed436565694e091dc5c9621c44c5e", kill_on_drop: false }`
[INFO] [stderr]    Compiling fibonacci v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `fN` is never read
[INFO] [stdout]  --> src/main.rs:2:30
[INFO] [stdout]   |
[INFO] [stdout] 2 |     let (mut f0, mut f1, mut fN) = (0, 1, 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: variable `fN` should have a snake case name
[INFO] [stdout]  --> src/main.rs:2:30
[INFO] [stdout]   |
[INFO] [stdout] 2 |     let (mut f0, mut f1, mut fN) = (0, 1, 0);
[INFO] [stdout]   |                              ^^ help: convert the identifier to snake case: `f_n`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.30s
[INFO] running `Command { std: "docker" "inspect" "a1c7bbe2e37f0703b3002c96de7d3c6090fed436565694e091dc5c9621c44c5e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1c7bbe2e37f0703b3002c96de7d3c6090fed436565694e091dc5c9621c44c5e", kill_on_drop: false }`
[INFO] [stdout] a1c7bbe2e37f0703b3002c96de7d3c6090fed436565694e091dc5c9621c44c5e
[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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d675817f524a7cfd4ff578f54beb665d0c4f0ac40e14249f42c5ea9c6421e668
[INFO] running `Command { std: "docker" "start" "-a" "d675817f524a7cfd4ff578f54beb665d0c4f0ac40e14249f42c5ea9c6421e668", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: value assigned to `fN` is never read
[INFO] [stderr]  --> src/main.rs:2:30
[INFO] [stderr]   |
[INFO] [stderr] 2 |     let (mut f0, mut f1, mut fN) = (0, 1, 0);
[INFO] [stderr]   |                              ^^
[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: variable `fN` should have a snake case name
[INFO] [stderr]  --> src/main.rs:2:30
[INFO] [stderr]   |
[INFO] [stderr] 2 |     let (mut f0, mut f1, mut fN) = (0, 1, 0);
[INFO] [stderr]   |                              ^^ help: convert the identifier to snake case: `f_n`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `fibonacci` (bin "fibonacci" test) generated 2 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.59s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/fibonacci-cc9d979e863a02f1)
[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" "d675817f524a7cfd4ff578f54beb665d0c4f0ac40e14249f42c5ea9c6421e668", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d675817f524a7cfd4ff578f54beb665d0c4f0ac40e14249f42c5ea9c6421e668", kill_on_drop: false }`
[INFO] [stdout] d675817f524a7cfd4ff578f54beb665d0c4f0ac40e14249f42c5ea9c6421e668