[INFO] updating cached repository calumleslie/advent-of-code
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/calumleslie/advent-of-code
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/calumleslie/advent-of-code" "work/ex/beta-1.37-6/sources/1.36.0/gh/calumleslie/advent-of-code"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/calumleslie/advent-of-code'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/calumleslie/advent-of-code" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/calumleslie/advent-of-code"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/calumleslie/advent-of-code'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a98173179f42075e55180be37fe0d47d0e25bc85
[INFO] sha for GitHub repo calumleslie/advent-of-code: a98173179f42075e55180be37fe0d47d0e25bc85
[INFO] validating manifest of calumleslie/advent-of-code on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of calumleslie/advent-of-code on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing calumleslie/advent-of-code
[INFO] finished frobbing calumleslie/advent-of-code
[INFO] frobbed toml for calumleslie/advent-of-code written to work/ex/beta-1.37-6/sources/1.36.0/gh/calumleslie/advent-of-code/Cargo.toml
[INFO] started frobbing calumleslie/advent-of-code
[INFO] finished frobbing calumleslie/advent-of-code
[INFO] frobbed toml for calumleslie/advent-of-code written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/calumleslie/advent-of-code/Cargo.toml
[INFO] crate calumleslie/advent-of-code already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing calumleslie/advent-of-code against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/calumleslie/advent-of-code:/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-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 03bc7667a3f4a83d3701f718cca65d861e6fbc21292bdc795df6b381dd45cbc9
[INFO] running `"docker" "start" "-a" "03bc7667a3f4a83d3701f718cca65d861e6fbc21292bdc795df6b381dd45cbc9"`
[INFO] [stderr]    Compiling advent-of-code v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/day1.rs:7:40
[INFO] [stderr]   |
[INFO] [stderr] 7 | fn read_file() -> Result<Vec<i32>, Box<Error>> {
[INFO] [stderr]   |                                        ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/day1.rs:19:35
[INFO] [stderr]    |
[INFO] [stderr] 19 | pub fn part1() -> Result<i32, Box<Error>> {
[INFO] [stderr]    |                                   ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/day1.rs:27:35
[INFO] [stderr]    |
[INFO] [stderr] 27 | pub fn part2() -> Result<i32, Box<Error>> {
[INFO] [stderr]    |                                   ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/day2.rs:17:35
[INFO] [stderr]    |
[INFO] [stderr] 17 | pub fn part1() -> Result<i32, Box<Error>> {
[INFO] [stderr]    |                                   ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/day2.rs:37:38
[INFO] [stderr]    |
[INFO] [stderr] 37 | pub fn part2() -> Result<String, Box<Error>> {
[INFO] [stderr]    |                                      ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/day3.rs:73:42
[INFO] [stderr]    |
[INFO] [stderr] 73 | fn read_file() -> Result<Vec<Claim>, Box<Error>> {
[INFO] [stderr]    |                                          ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/day3.rs:78:35
[INFO] [stderr]    |
[INFO] [stderr] 78 | pub fn part1() -> Result<i32, Box<Error>> {
[INFO] [stderr]    |                                   ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/day3.rs:97:37
[INFO] [stderr]    |
[INFO] [stderr] 97 | pub fn part2() -> Result<Claim, Box<Error>> {
[INFO] [stderr]    |                                     ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/day4.rs:37:51
[INFO] [stderr]    |
[INFO] [stderr] 37 |     fn from_line(line: &str) -> Result<Entry, Box<Error>> {
[INFO] [stderr]    |                                                   ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/day4.rs:90:46
[INFO] [stderr]    |
[INFO] [stderr] 90 | fn read_timeline() -> Result<Vec<Entry>, Box<Error>> {
[INFO] [stderr]    |                                              ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/day4.rs:133:33
[INFO] [stderr]     |
[INFO] [stderr] 133 | fn make_minutes_map(spans: &mut Iterator<Item = &SleepSpan>) -> HashMap<(Guard, Minute), u32> {
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = &SleepSpan>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/day4.rs:144:35
[INFO] [stderr]     |
[INFO] [stderr] 144 | pub fn part1() -> Result<u32, Box<Error>> {
[INFO] [stderr]     |                                   ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/day4.rs:186:35
[INFO] [stderr]     |
[INFO] [stderr] 186 | pub fn part2() -> Result<u32, Box<Error>> {
[INFO] [stderr]     |                                   ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/day5.rs:48:37
[INFO] [stderr]    |
[INFO] [stderr] 48 | pub fn part1() -> Result<usize, Box<Error>> {
[INFO] [stderr]    |                                     ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/day5.rs:54:37
[INFO] [stderr]    |
[INFO] [stderr] 54 | pub fn part2() -> Result<usize, Box<Error>> {
[INFO] [stderr]    |                                     ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/main.rs:9:29
[INFO] [stderr]   |
[INFO] [stderr] 9 | fn main() -> Result<(), Box<std::error::Error>> {
[INFO] [stderr]   |                             ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.13s
[INFO] running `"docker" "inspect" "03bc7667a3f4a83d3701f718cca65d861e6fbc21292bdc795df6b381dd45cbc9"`
[INFO] running `"docker" "rm" "-f" "03bc7667a3f4a83d3701f718cca65d861e6fbc21292bdc795df6b381dd45cbc9"`
[INFO] [stdout] 03bc7667a3f4a83d3701f718cca65d861e6fbc21292bdc795df6b381dd45cbc9
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/calumleslie/advent-of-code:/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-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 675ace427ec83b942a4b1d7e135d8fbeed7d47eb0be10e7eeb59cf3094e0f758
[INFO] running `"docker" "start" "-a" "675ace427ec83b942a4b1d7e135d8fbeed7d47eb0be10e7eeb59cf3094e0f758"`
[INFO] [stderr]    Compiling advent-of-code v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/day1.rs:7:40
[INFO] [stderr]   |
[INFO] [stderr] 7 | fn read_file() -> Result<Vec<i32>, Box<Error>> {
[INFO] [stderr]   |                                        ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/day1.rs:19:35
[INFO] [stderr]    |
[INFO] [stderr] 19 | pub fn part1() -> Result<i32, Box<Error>> {
[INFO] [stderr]    |                                   ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/day1.rs:27:35
[INFO] [stderr]    |
[INFO] [stderr] 27 | pub fn part2() -> Result<i32, Box<Error>> {
[INFO] [stderr]    |                                   ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/day2.rs:17:35
[INFO] [stderr]    |
[INFO] [stderr] 17 | pub fn part1() -> Result<i32, Box<Error>> {
[INFO] [stderr]    |                                   ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/day2.rs:37:38
[INFO] [stderr]    |
[INFO] [stderr] 37 | pub fn part2() -> Result<String, Box<Error>> {
[INFO] [stderr]    |                                      ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/day3.rs:73:42
[INFO] [stderr]    |
[INFO] [stderr] 73 | fn read_file() -> Result<Vec<Claim>, Box<Error>> {
[INFO] [stderr]    |                                          ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/day3.rs:78:35
[INFO] [stderr]    |
[INFO] [stderr] 78 | pub fn part1() -> Result<i32, Box<Error>> {
[INFO] [stderr]    |                                   ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/day3.rs:97:37
[INFO] [stderr]    |
[INFO] [stderr] 97 | pub fn part2() -> Result<Claim, Box<Error>> {
[INFO] [stderr]    |                                     ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/day4.rs:37:51
[INFO] [stderr]    |
[INFO] [stderr] 37 |     fn from_line(line: &str) -> Result<Entry, Box<Error>> {
[INFO] [stderr]    |                                                   ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/day4.rs:90:46
[INFO] [stderr]    |
[INFO] [stderr] 90 | fn read_timeline() -> Result<Vec<Entry>, Box<Error>> {
[INFO] [stderr]    |                                              ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/day4.rs:133:33
[INFO] [stderr]     |
[INFO] [stderr] 133 | fn make_minutes_map(spans: &mut Iterator<Item = &SleepSpan>) -> HashMap<(Guard, Minute), u32> {
[INFO] [stderr]     |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = &SleepSpan>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/day4.rs:144:35
[INFO] [stderr]     |
[INFO] [stderr] 144 | pub fn part1() -> Result<u32, Box<Error>> {
[INFO] [stderr]     |                                   ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/day4.rs:186:35
[INFO] [stderr]     |
[INFO] [stderr] 186 | pub fn part2() -> Result<u32, Box<Error>> {
[INFO] [stderr]     |                                   ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/day5.rs:48:37
[INFO] [stderr]    |
[INFO] [stderr] 48 | pub fn part1() -> Result<usize, Box<Error>> {
[INFO] [stderr]    |                                     ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/day5.rs:54:37
[INFO] [stderr]    |
[INFO] [stderr] 54 | pub fn part2() -> Result<usize, Box<Error>> {
[INFO] [stderr]    |                                     ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/main.rs:9:29
[INFO] [stderr]   |
[INFO] [stderr] 9 | fn main() -> Result<(), Box<std::error::Error>> {
[INFO] [stderr]   |                             ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.41s
[INFO] running `"docker" "inspect" "675ace427ec83b942a4b1d7e135d8fbeed7d47eb0be10e7eeb59cf3094e0f758"`
[INFO] running `"docker" "rm" "-f" "675ace427ec83b942a4b1d7e135d8fbeed7d47eb0be10e7eeb59cf3094e0f758"`
[INFO] [stdout] 675ace427ec83b942a4b1d7e135d8fbeed7d47eb0be10e7eeb59cf3094e0f758
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/calumleslie/advent-of-code:/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-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 2b6cecc73b1b6982b2e4a9241babce1a22668c4370aab80160ba2f3ccf1f8d67
[INFO] running `"docker" "start" "-a" "2b6cecc73b1b6982b2e4a9241babce1a22668c4370aab80160ba2f3ccf1f8d67"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/advent_of_code-db90bbfb717a73c6
[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" "2b6cecc73b1b6982b2e4a9241babce1a22668c4370aab80160ba2f3ccf1f8d67"`
[INFO] running `"docker" "rm" "-f" "2b6cecc73b1b6982b2e4a9241babce1a22668c4370aab80160ba2f3ccf1f8d67"`
[INFO] [stdout] 2b6cecc73b1b6982b2e4a9241babce1a22668c4370aab80160ba2f3ccf1f8d67