[INFO] cloning repository https://github.com/tarikkhan/fibonacci_series
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tarikkhan/fibonacci_series" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftarikkhan%2Ffibonacci_series", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftarikkhan%2Ffibonacci_series'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bcb51cf4e78ae2438ea14aedd23e5578634513c6
[INFO] checking tarikkhan/fibonacci_series against try#6619027b13a87a3597115f2c8231f107bf3a7a5f for pr-139624
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftarikkhan%2Ffibonacci_series" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tarikkhan/fibonacci_series on toolchain 6619027b13a87a3597115f2c8231f107bf3a7a5f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6619027b13a87a3597115f2c8231f107bf3a7a5f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tarikkhan/fibonacci_series
[INFO] finished tweaking git repo https://github.com/tarikkhan/fibonacci_series
[INFO] tweaked toml for git repo https://github.com/tarikkhan/fibonacci_series written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/tarikkhan/fibonacci_series already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6619027b13a87a3597115f2c8231f107bf3a7a5f" "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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+6619027b13a87a3597115f2c8231f107bf3a7a5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 85fb5657e6a0630448b3b2fa296124145e44f6e9ae2d50da8fd1eee02274a87b
[INFO] running `Command { std: "docker" "start" "-a" "85fb5657e6a0630448b3b2fa296124145e44f6e9ae2d50da8fd1eee02274a87b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "85fb5657e6a0630448b3b2fa296124145e44f6e9ae2d50da8fd1eee02274a87b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "85fb5657e6a0630448b3b2fa296124145e44f6e9ae2d50da8fd1eee02274a87b", kill_on_drop: false }`
[INFO] [stdout] 85fb5657e6a0630448b3b2fa296124145e44f6e9ae2d50da8fd1eee02274a87b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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" "RUSTDOCFLAGS=--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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+6619027b13a87a3597115f2c8231f107bf3a7a5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5842b4022cf20ea9d07a89bc559c0038c4a9871ab1112d5f8c48b0b4f155e2cf
[INFO] running `Command { std: "docker" "start" "-a" "5842b4022cf20ea9d07a89bc559c0038c4a9871ab1112d5f8c48b0b4f155e2cf", kill_on_drop: false }`
[INFO] [stderr]     Checking fibonacci_series v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `generate_fibonacci_series` is never used
[INFO] [stdout]   --> src/main.rs:25:4
[INFO] [stdout]    |
[INFO] [stdout] 25 | fn generate_fibonacci_series (how_many: u32) -> Vec<u32> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `generate_fibonacci_series` is never used
[INFO] [stdout]   --> src/main.rs:25:4
[INFO] [stdout]    |
[INFO] [stdout] 25 | fn generate_fibonacci_series (how_many: u32) -> Vec<u32> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] running `Command { std: "docker" "inspect" "5842b4022cf20ea9d07a89bc559c0038c4a9871ab1112d5f8c48b0b4f155e2cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5842b4022cf20ea9d07a89bc559c0038c4a9871ab1112d5f8c48b0b4f155e2cf", kill_on_drop: false }`
[INFO] [stdout] 5842b4022cf20ea9d07a89bc559c0038c4a9871ab1112d5f8c48b0b4f155e2cf