[INFO] cloning repository https://github.com/cadaverine/huge-fibonacci-modulo
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cadaverine/huge-fibonacci-modulo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcadaverine%2Fhuge-fibonacci-modulo"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcadaverine%2Fhuge-fibonacci-modulo'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c874c6011284aa96f0582e0b4e3608aa08fd30d9
[INFO] checking cadaverine/huge-fibonacci-modulo against try#ea663bba38739867a4b75ac820991b4f5d093c3b for pr-62262-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcadaverine%2Fhuge-fibonacci-modulo" "/workspace/builds/worker-4/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cadaverine/huge-fibonacci-modulo on toolchain ea663bba38739867a4b75ac820991b4f5d093c3b
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/cadaverine/huge-fibonacci-modulo
[INFO] finished tweaking git repo https://github.com/cadaverine/huge-fibonacci-modulo
[INFO] tweaked toml for git repo https://github.com/cadaverine/huge-fibonacci-modulo written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/cadaverine/huge-fibonacci-modulo already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] ae8600d3ba6a58cd33d9a069f6b74104be9f5ff61591327844d33fd53f89a4a0
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "ae8600d3ba6a58cd33d9a069f6b74104be9f5ff61591327844d33fd53f89a4a0"`
[INFO] [stderr]     Checking huge_fibonacci_modulo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `start_pizano_idx`
[INFO] [stderr]   --> src/main.rs:30:9
[INFO] [stderr]    |
[INFO] [stderr] 30 |     let start_pizano_idx = 0;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_start_pizano_idx`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `end_pizano_idx`
[INFO] [stderr]   --> src/main.rs:31:13
[INFO] [stderr]    |
[INFO] [stderr] 31 |     let mut end_pizano_idx = 1;
[INFO] [stderr]    |             ^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_end_pizano_idx`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `cycle_value`
[INFO] [stderr]   --> src/main.rs:33:13
[INFO] [stderr]    |
[INFO] [stderr] 33 |     let mut cycle_value = 1;
[INFO] [stderr]    |             ^^^^^^^^^^^ help: consider prefixing with an underscore: `_cycle_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `cycle_counter`
[INFO] [stderr]   --> src/main.rs:34:13
[INFO] [stderr]    |
[INFO] [stderr] 34 |     let mut cycle_counter = 0;
[INFO] [stderr]    |             ^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_cycle_counter`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:31:9
[INFO] [stderr]    |
[INFO] [stderr] 31 |     let mut end_pizano_idx = 1;
[INFO] [stderr]    |         ----^^^^^^^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:33:9
[INFO] [stderr]    |
[INFO] [stderr] 33 |     let mut cycle_value = 1;
[INFO] [stderr]    |         ----^^^^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:34:9
[INFO] [stderr]    |
[INFO] [stderr] 34 |     let mut cycle_counter = 0;
[INFO] [stderr]    |         ----^^^^^^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `start_pizano_idx`
[INFO] [stderr]   --> src/main.rs:30:9
[INFO] [stderr]    |
[INFO] [stderr] 30 |     let start_pizano_idx = 0;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_start_pizano_idx`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `end_pizano_idx`
[INFO] [stderr]   --> src/main.rs:31:13
[INFO] [stderr]    |
[INFO] [stderr] 31 |     let mut end_pizano_idx = 1;
[INFO] [stderr]    |             ^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_end_pizano_idx`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `cycle_value`
[INFO] [stderr]   --> src/main.rs:33:13
[INFO] [stderr]    |
[INFO] [stderr] 33 |     let mut cycle_value = 1;
[INFO] [stderr]    |             ^^^^^^^^^^^ help: consider prefixing with an underscore: `_cycle_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `cycle_counter`
[INFO] [stderr]   --> src/main.rs:34:13
[INFO] [stderr]    |
[INFO] [stderr] 34 |     let mut cycle_counter = 0;
[INFO] [stderr]    |             ^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_cycle_counter`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:31:9
[INFO] [stderr]    |
[INFO] [stderr] 31 |     let mut end_pizano_idx = 1;
[INFO] [stderr]    |         ----^^^^^^^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:33:9
[INFO] [stderr]    |
[INFO] [stderr] 33 |     let mut cycle_value = 1;
[INFO] [stderr]    |         ----^^^^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:34:9
[INFO] [stderr]    |
[INFO] [stderr] 34 |     let mut cycle_counter = 0;
[INFO] [stderr]    |         ----^^^^^^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.15s
[INFO] running `"docker" "inspect" "ae8600d3ba6a58cd33d9a069f6b74104be9f5ff61591327844d33fd53f89a4a0"`
[INFO] running `"docker" "rm" "-f" "ae8600d3ba6a58cd33d9a069f6b74104be9f5ff61591327844d33fd53f89a4a0"`
[INFO] [stdout] ae8600d3ba6a58cd33d9a069f6b74104be9f5ff61591327844d33fd53f89a4a0