[INFO] updating cached repository ijagberg/factorize
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ijagberg/factorize
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ijagberg/factorize" "work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/ijagberg/factorize"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/ijagberg/factorize'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ijagberg/factorize" "work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/ijagberg/factorize"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/ijagberg/factorize'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 68af52a7e2e0d792170cdc3c7981062790906455
[INFO] sha for GitHub repo ijagberg/factorize: 68af52a7e2e0d792170cdc3c7981062790906455
[INFO] validating manifest of ijagberg/factorize on toolchain master#60960a260f7b5c695fd0717311d72ce62dd4eb43
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of ijagberg/factorize on toolchain try#266783e4e09e4e9d5307c1c8e695659c58bbcac7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing ijagberg/factorize
[INFO] finished frobbing ijagberg/factorize
[INFO] frobbed toml for ijagberg/factorize written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/ijagberg/factorize/Cargo.toml
[INFO] started frobbing ijagberg/factorize
[INFO] finished frobbing ijagberg/factorize
[INFO] frobbed toml for ijagberg/factorize written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/ijagberg/factorize/Cargo.toml
[INFO] crate ijagberg/factorize already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] checking ijagberg/factorize against try#266783e4e09e4e9d5307c1c8e695659c58bbcac7 for pr-63376
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-0/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/ijagberg/factorize:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 133e29bd80a665d21df6f431013c59e10ca255d532358efff9981fb9ad9c87d5
[INFO] running `"docker" "start" "-a" "133e29bd80a665d21df6f431013c59e10ca255d532358efff9981fb9ad9c87d5"`
[INFO] [stderr]     Checking factorize v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable `r` is assigned to, but never used
[INFO] [stderr]   --> src/main.rs:60:17
[INFO] [stderr]    |
[INFO] [stderr] 60 |         let mut r: u128 = 1;
[INFO] [stderr]    |                 ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr]    = note: consider using `_r` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n_minus_one`
[INFO] [stderr]   --> src/main.rs:61:13
[INFO] [stderr]    |
[INFO] [stderr] 61 |         let n_minus_one: u128 = n - 1;
[INFO] [stderr]    |             ^^^^^^^^^^^ help: consider prefixing with an underscore: `_n_minus_one`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `upper_limit`
[INFO] [stderr]   --> src/main.rs:68:13
[INFO] [stderr]    |
[INFO] [stderr] 68 |         let upper_limit: u128 = n - 3;
[INFO] [stderr]    |             ^^^^^^^^^^^ help: consider prefixing with an underscore: `_upper_limit`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `power`
[INFO] [stderr]   --> src/main.rs:69:13
[INFO] [stderr]    |
[INFO] [stderr] 69 |         let power: u128 = 7;
[INFO] [stderr]    |             ^^^^^ help: consider prefixing with an underscore: `_power`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/main.rs:71:13
[INFO] [stderr]    |
[INFO] [stderr] 71 |         for i in 1..10 {
[INFO] [stderr]    |             ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `random`
[INFO] [stderr]   --> src/main.rs:72:17
[INFO] [stderr]    |
[INFO] [stderr] 72 |             let random = rand::thread_rng().next_u64();
[INFO] [stderr]    |                 ^^^^^^ help: consider prefixing with an underscore: `_random`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `miller_rabin`
[INFO] [stderr]   --> src/main.rs:54:1
[INFO] [stderr]    |
[INFO] [stderr] 54 | fn miller_rabin(n: &u128) -> bool {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `gcd`
[INFO] [stderr]    --> src/main.rs:129:1
[INFO] [stderr]     |
[INFO] [stderr] 129 | fn gcd(a: u128, b: u128) -> u128 {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable `r` is assigned to, but never used
[INFO] [stderr]   --> src/main.rs:60:17
[INFO] [stderr]    |
[INFO] [stderr] 60 |         let mut r: u128 = 1;
[INFO] [stderr]    |                 ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr]    = note: consider using `_r` instead
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n_minus_one`
[INFO] [stderr]   --> src/main.rs:61:13
[INFO] [stderr]    |
[INFO] [stderr] 61 |         let n_minus_one: u128 = n - 1;
[INFO] [stderr]    |             ^^^^^^^^^^^ help: consider prefixing with an underscore: `_n_minus_one`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `upper_limit`
[INFO] [stderr]   --> src/main.rs:68:13
[INFO] [stderr]    |
[INFO] [stderr] 68 |         let upper_limit: u128 = n - 3;
[INFO] [stderr]    |             ^^^^^^^^^^^ help: consider prefixing with an underscore: `_upper_limit`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `power`
[INFO] [stderr]   --> src/main.rs:69:13
[INFO] [stderr]    |
[INFO] [stderr] 69 |         let power: u128 = 7;
[INFO] [stderr]    |             ^^^^^ help: consider prefixing with an underscore: `_power`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/main.rs:71:13
[INFO] [stderr]    |
[INFO] [stderr] 71 |         for i in 1..10 {
[INFO] [stderr]    |             ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `random`
[INFO] [stderr]   --> src/main.rs:72:17
[INFO] [stderr]    |
[INFO] [stderr] 72 |             let random = rand::thread_rng().next_u64();
[INFO] [stderr]    |                 ^^^^^^ help: consider prefixing with an underscore: `_random`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `miller_rabin`
[INFO] [stderr]   --> src/main.rs:54:1
[INFO] [stderr]    |
[INFO] [stderr] 54 | fn miller_rabin(n: &u128) -> bool {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.20s
[INFO] running `"docker" "inspect" "133e29bd80a665d21df6f431013c59e10ca255d532358efff9981fb9ad9c87d5"`
[INFO] running `"docker" "rm" "-f" "133e29bd80a665d21df6f431013c59e10ca255d532358efff9981fb9ad9c87d5"`
[INFO] [stdout] 133e29bd80a665d21df6f431013c59e10ca255d532358efff9981fb9ad9c87d5