[INFO] updating cached repository gobanos/dailyprogrammer-rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/gobanos/dailyprogrammer-rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/gobanos/dailyprogrammer-rs" "work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/gobanos/dailyprogrammer-rs"`
[INFO] [stderr] Cloning into 'work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/gobanos/dailyprogrammer-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/gobanos/dailyprogrammer-rs" "work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/gobanos/dailyprogrammer-rs"`
[INFO] [stderr] Cloning into 'work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/gobanos/dailyprogrammer-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 273110c12e3f84d8c2475661c5f669024764d30b
[INFO] sha for GitHub repo gobanos/dailyprogrammer-rs: 273110c12e3f84d8c2475661c5f669024764d30b
[INFO] validating manifest of gobanos/dailyprogrammer-rs on toolchain master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of gobanos/dailyprogrammer-rs on toolchain try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing gobanos/dailyprogrammer-rs
[INFO] finished frobbing gobanos/dailyprogrammer-rs
[INFO] frobbed toml for gobanos/dailyprogrammer-rs written to work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/gobanos/dailyprogrammer-rs/Cargo.toml
[INFO] started frobbing gobanos/dailyprogrammer-rs
[INFO] finished frobbing gobanos/dailyprogrammer-rs
[INFO] frobbed toml for gobanos/dailyprogrammer-rs written to work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/gobanos/dailyprogrammer-rs/Cargo.toml
[INFO] crate gobanos/dailyprogrammer-rs already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /mnt/crater-raid/crater/work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/gobanos/dailyprogrammer-rs/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking gobanos/dailyprogrammer-rs against master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7 for pr-59199
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-59199/worker-0/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/gobanos/dailyprogrammer-rs:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/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" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 7d22005ed071052369f588edbd8634659db38694421b859127705600018d47d9
[INFO] running `"docker" "start" "-a" "7d22005ed071052369f588edbd8634659db38694421b859127705600018d47d9"`
[INFO] [stderr]     Checking dailyprogrammer-rs v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: struct is never constructed: `Hidato`
[INFO] [stderr]   --> src/bin/h282.rs:54:1
[INFO] [stderr]    |
[INFO] [stderr] 54 | struct Hidato {
[INFO] [stderr]    | ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `Candidates`
[INFO] [stderr]   --> src/bin/h282.rs:58:1
[INFO] [stderr]    |
[INFO] [stderr] 58 | type Candidates = Vec<usize>;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `Cell`
[INFO] [stderr]   --> src/bin/h282.rs:60:1
[INFO] [stderr]    |
[INFO] [stderr] 60 | enum Cell {
[INFO] [stderr]    | ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Hidato`
[INFO] [stderr]   --> src/bin/h282.rs:54:1
[INFO] [stderr]    |
[INFO] [stderr] 54 | struct Hidato {
[INFO] [stderr]    | ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `Candidates`
[INFO] [stderr]   --> src/bin/h282.rs:58:1
[INFO] [stderr]    |
[INFO] [stderr] 58 | type Candidates = Vec<usize>;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `Cell`
[INFO] [stderr]   --> src/bin/h282.rs:60:1
[INFO] [stderr]    |
[INFO] [stderr] 60 | enum Cell {
[INFO] [stderr]    | ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `to_base_10`
[INFO] [stderr]   --> src/bin/e282.rs:97:1
[INFO] [stderr]    |
[INFO] [stderr] 97 | fn to_base_10(num: &str) -> usize {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `to_base_f`
[INFO] [stderr]    --> src/bin/e282.rs:113:1
[INFO] [stderr]     |
[INFO] [stderr] 113 | fn to_base_f(num: usize) -> String {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `Base`
[INFO] [stderr]    --> src/bin/e282.rs:145:1
[INFO] [stderr]     |
[INFO] [stderr] 145 | enum Base {
[INFO] [stderr]     | ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Fibonacci`
[INFO] [stderr]    --> src/bin/e282.rs:150:1
[INFO] [stderr]     |
[INFO] [stderr] 150 | struct Fibonacci {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]    --> src/bin/e282.rs:156:5
[INFO] [stderr]     |
[INFO] [stderr] 156 |     fn new() -> Fibonacci {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parse_input`
[INFO] [stderr]    --> src/bin/e282.rs:176:1
[INFO] [stderr]     |
[INFO] [stderr] 176 | fn parse_input() -> Option<(Base, String)> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `Base`
[INFO] [stderr]    --> src/bin/e282.rs:145:1
[INFO] [stderr]     |
[INFO] [stderr] 145 | enum Base {
[INFO] [stderr]     | ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parse_input`
[INFO] [stderr]    --> src/bin/e282.rs:176:1
[INFO] [stderr]     |
[INFO] [stderr] 176 | fn parse_input() -> Option<(Base, String)> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `at` found for type `regex::Captures<'_>` in the current scope
[INFO] [stderr]   --> src/bin/e283.rs:96:22
[INFO] [stderr]    |
[INFO] [stderr] 96 |                 caps.at(1).unwrap().to_string(),
[INFO] [stderr]    |                      ^^
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `at` found for type `regex::Captures<'_>` in the current scope
[INFO] [stderr]   --> src/bin/e283.rs:97:22
[INFO] [stderr]    |
[INFO] [stderr] 97 |                 caps.at(2).unwrap().to_string(),
[INFO] [stderr]    |                      ^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0599`.
[INFO] [stderr] error: Could not compile `dailyprogrammer-rs`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0599]: no method named `at` found for type `regex::Captures<'_>` in the current scope
[INFO] [stderr]   --> src/bin/e283.rs:96:22
[INFO] [stderr]    |
[INFO] [stderr] 96 |                 caps.at(1).unwrap().to_string(),
[INFO] [stderr]    |                      ^^
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `at` found for type `regex::Captures<'_>` in the current scope
[INFO] [stderr]   --> src/bin/e283.rs:97:22
[INFO] [stderr]    |
[INFO] [stderr] 97 |                 caps.at(2).unwrap().to_string(),
[INFO] [stderr]    |                      ^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0599`.
[INFO] [stderr] error: Could not compile `dailyprogrammer-rs`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "7d22005ed071052369f588edbd8634659db38694421b859127705600018d47d9"`
[INFO] running `"docker" "rm" "-f" "7d22005ed071052369f588edbd8634659db38694421b859127705600018d47d9"`
[INFO] [stdout] 7d22005ed071052369f588edbd8634659db38694421b859127705600018d47d9