[INFO] updating cached repository william42/advent
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/william42/advent
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/william42/advent" "work/ex/beta-1.38-1/sources/1.37.0/gh/william42/advent"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/william42/advent'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/william42/advent" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/william42/advent"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/william42/advent'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] afd88192741ee5c2205ca0c2053592907134660c
[INFO] sha for GitHub repo william42/advent: afd88192741ee5c2205ca0c2053592907134660c
[INFO] validating manifest of william42/advent on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of william42/advent on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing william42/advent
[INFO] finished frobbing william42/advent
[INFO] frobbed toml for william42/advent written to work/ex/beta-1.38-1/sources/1.37.0/gh/william42/advent/Cargo.toml
[INFO] started frobbing william42/advent
[INFO] finished frobbing william42/advent
[INFO] frobbed toml for william42/advent written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/william42/advent/Cargo.toml
[INFO] crate william42/advent already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing william42/advent against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/william42/advent:/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=warn" "-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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] de13732e21d3cef733b99fdafde18f588563dd46ec58b4fe8b46c9cb9453a68b
[INFO] running `"docker" "start" "-a" "de13732e21d3cef733b99fdafde18f588563dd46ec58b4fe8b46c9cb9453a68b"`
[INFO] [stderr]    Compiling advent v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: function is never used: `process_frequency`
[INFO] [stderr]   --> src/main.rs:18:1
[INFO] [stderr]    |
[INFO] [stderr] 18 | fn process_frequency(line: String) -> i32 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `day1a`
[INFO] [stderr]   --> src/main.rs:27:1
[INFO] [stderr]    |
[INFO] [stderr] 27 | fn day1a() -> i32 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `day1b`
[INFO] [stderr]   --> src/main.rs:33:1
[INFO] [stderr]    |
[INFO] [stderr] 33 | fn day1b() -> i32 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `day2a`
[INFO] [stderr]   --> src/main.rs:50:1
[INFO] [stderr]    |
[INFO] [stderr] 50 | fn day2a() -> i32 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `day2b`
[INFO] [stderr]   --> src/main.rs:70:1
[INFO] [stderr]    |
[INFO] [stderr] 70 | fn day2b() -> String {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `CRect`
[INFO] [stderr]   --> src/main.rs:88:1
[INFO] [stderr]    |
[INFO] [stderr] 88 | struct CRect {
[INFO] [stderr]    | ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `day3line`
[INFO] [stderr]   --> src/main.rs:96:1
[INFO] [stderr]    |
[INFO] [stderr] 96 | fn day3line(line: String) -> CRect {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `day3a`
[INFO] [stderr]    --> src/main.rs:119:1
[INFO] [stderr]     |
[INFO] [stderr] 119 | fn day3a() -> i32 {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `day3b`
[INFO] [stderr]    --> src/main.rs:145:1
[INFO] [stderr]     |
[INFO] [stderr] 145 | fn day3b() -> u32 {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `polymer`
[INFO] [stderr]    --> src/main.rs:173:1
[INFO] [stderr]     |
[INFO] [stderr] 173 | / fn polymer<I>(r: &mut I, prev: Option<u8>) -> Option<u32>
[INFO] [stderr] 174 | | where
[INFO] [stderr] 175 | |     I: Iterator<Item = Result<u8, std::io::Error>>,
[INFO] [stderr] 176 | | {
[INFO] [stderr] ...   |
[INFO] [stderr] 192 | |     }
[INFO] [stderr] 193 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `day5a`
[INFO] [stderr]    --> src/main.rs:195:1
[INFO] [stderr]     |
[INFO] [stderr] 195 | fn day5a() -> u32 {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `poly_without`
[INFO] [stderr]    --> src/main.rs:206:1
[INFO] [stderr]     |
[INFO] [stderr] 206 | fn poly_without(i: u8) -> u32 {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `day5b`
[INFO] [stderr]    --> src/main.rs:223:1
[INFO] [stderr]     |
[INFO] [stderr] 223 | fn day5b() -> u32 {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `day8a`
[INFO] [stderr]    --> src/main.rs:249:1
[INFO] [stderr]     |
[INFO] [stderr] 249 | fn day8a() -> u32 {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.06s
[INFO] running `"docker" "inspect" "de13732e21d3cef733b99fdafde18f588563dd46ec58b4fe8b46c9cb9453a68b"`
[INFO] running `"docker" "rm" "-f" "de13732e21d3cef733b99fdafde18f588563dd46ec58b4fe8b46c9cb9453a68b"`
[INFO] [stdout] de13732e21d3cef733b99fdafde18f588563dd46ec58b4fe8b46c9cb9453a68b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/william42/advent:/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=warn" "-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" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 77f7405b6dba13430835050aef43d1b83b4f2e89c2b667bc6ce421345ab7c863
[INFO] running `"docker" "start" "-a" "77f7405b6dba13430835050aef43d1b83b4f2e89c2b667bc6ce421345ab7c863"`
[INFO] [stderr]    Compiling advent v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: function is never used: `process_frequency`
[INFO] [stderr]   --> src/main.rs:18:1
[INFO] [stderr]    |
[INFO] [stderr] 18 | fn process_frequency(line: String) -> i32 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `day1a`
[INFO] [stderr]   --> src/main.rs:27:1
[INFO] [stderr]    |
[INFO] [stderr] 27 | fn day1a() -> i32 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `day1b`
[INFO] [stderr]   --> src/main.rs:33:1
[INFO] [stderr]    |
[INFO] [stderr] 33 | fn day1b() -> i32 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `day2a`
[INFO] [stderr]   --> src/main.rs:50:1
[INFO] [stderr]    |
[INFO] [stderr] 50 | fn day2a() -> i32 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `day2b`
[INFO] [stderr]   --> src/main.rs:70:1
[INFO] [stderr]    |
[INFO] [stderr] 70 | fn day2b() -> String {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `CRect`
[INFO] [stderr]   --> src/main.rs:88:1
[INFO] [stderr]    |
[INFO] [stderr] 88 | struct CRect {
[INFO] [stderr]    | ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `day3line`
[INFO] [stderr]   --> src/main.rs:96:1
[INFO] [stderr]    |
[INFO] [stderr] 96 | fn day3line(line: String) -> CRect {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `day3a`
[INFO] [stderr]    --> src/main.rs:119:1
[INFO] [stderr]     |
[INFO] [stderr] 119 | fn day3a() -> i32 {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `day3b`
[INFO] [stderr]    --> src/main.rs:145:1
[INFO] [stderr]     |
[INFO] [stderr] 145 | fn day3b() -> u32 {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `polymer`
[INFO] [stderr]    --> src/main.rs:173:1
[INFO] [stderr]     |
[INFO] [stderr] 173 | / fn polymer<I>(r: &mut I, prev: Option<u8>) -> Option<u32>
[INFO] [stderr] 174 | | where
[INFO] [stderr] 175 | |     I: Iterator<Item = Result<u8, std::io::Error>>,
[INFO] [stderr] 176 | | {
[INFO] [stderr] ...   |
[INFO] [stderr] 192 | |     }
[INFO] [stderr] 193 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `day5a`
[INFO] [stderr]    --> src/main.rs:195:1
[INFO] [stderr]     |
[INFO] [stderr] 195 | fn day5a() -> u32 {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `poly_without`
[INFO] [stderr]    --> src/main.rs:206:1
[INFO] [stderr]     |
[INFO] [stderr] 206 | fn poly_without(i: u8) -> u32 {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `day5b`
[INFO] [stderr]    --> src/main.rs:223:1
[INFO] [stderr]     |
[INFO] [stderr] 223 | fn day5b() -> u32 {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `day8a`
[INFO] [stderr]    --> src/main.rs:249:1
[INFO] [stderr]     |
[INFO] [stderr] 249 | fn day8a() -> u32 {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.80s
[INFO] running `"docker" "inspect" "77f7405b6dba13430835050aef43d1b83b4f2e89c2b667bc6ce421345ab7c863"`
[INFO] running `"docker" "rm" "-f" "77f7405b6dba13430835050aef43d1b83b4f2e89c2b667bc6ce421345ab7c863"`
[INFO] [stdout] 77f7405b6dba13430835050aef43d1b83b4f2e89c2b667bc6ce421345ab7c863
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/william42/advent:/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=warn" "-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" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 02f2610a68e05179d7ac8e9e467ea450cf9b9eaf8e0081c61dda46682fb2cd15
[INFO] running `"docker" "start" "-a" "02f2610a68e05179d7ac8e9e467ea450cf9b9eaf8e0081c61dda46682fb2cd15"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/advent-63b088ae18a7e70f
[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
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "02f2610a68e05179d7ac8e9e467ea450cf9b9eaf8e0081c61dda46682fb2cd15"`
[INFO] running `"docker" "rm" "-f" "02f2610a68e05179d7ac8e9e467ea450cf9b9eaf8e0081c61dda46682fb2cd15"`
[INFO] [stdout] 02f2610a68e05179d7ac8e9e467ea450cf9b9eaf8e0081c61dda46682fb2cd15