[INFO] updating cached repository https://github.com/gadomski/advent-of-code
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b2f46cf68a3f653ae0c694e11223079bb1d2e310
[INFO] checking gadomski/advent-of-code against master#bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc for pr-70917
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgadomski%2Fadvent-of-code" "/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/gadomski/advent-of-code on toolchain bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/gadomski/advent-of-code
[INFO] finished tweaking git repo https://github.com/gadomski/advent-of-code
[INFO] tweaked toml for git repo https://github.com/gadomski/advent-of-code written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/gadomski/advent-of-code already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "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" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b072481d1759ddb0fd951933de123f1403e88ad72e10be73ec236dd89f820869
[INFO] running `"docker" "start" "-a" "b072481d1759ddb0fd951933de123f1403e88ad72e10be73ec236dd89f820869"`
[INFO] [stderr]    Compiling libc v0.2.44
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]     Checking text_io v0.1.7
[INFO] [stderr]    Compiling memchr v2.1.1
[INFO] [stderr]    Compiling syn v0.15.22
[INFO] [stderr]     Checking backtrace-sys v0.1.24
[INFO] [stderr]     Checking time v0.1.40
[INFO] [stderr]     Checking backtrace v0.3.9
[INFO] [stderr]     Checking aho-corasick v0.6.9
[INFO] [stderr]     Checking pbr v1.0.1
[INFO] [stderr]     Checking num-integer v0.1.39
[INFO] [stderr]     Checking regex v1.1.0
[INFO] [stderr]     Checking chrono v0.4.6
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]    Compiling failure_derive v0.1.3
[INFO] [stderr]     Checking failure v0.1.3
[INFO] [stderr]     Checking advent-of-code v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/02.rs:15:17
[INFO] [stderr]    |
[INFO] [stderr] 15 |             let mut entry = frequencies.entry(c).or_insert(0);
[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: variant is never constructed: `Crash`
[INFO] [stderr]   --> src/13.rs:65:5
[INFO] [stderr]    |
[INFO] [stderr] 65 |     Crash(Location),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error[E0061]: this function takes 2 arguments but 1 argument was supplied
[INFO] [stderr]    --> src/11.rs:156:16
[INFO] [stderr]     |
[INFO] [stderr] 27  |     fn new(size: i64, serial_number: i64) -> Grid {
[INFO] [stderr]     |     --------------------------------------------- defined here
[INFO] [stderr] ...
[INFO] [stderr] 156 |     let grid = Grid::new(8);
[INFO] [stderr]     |                ^^^^^^^^^ - supplied 1 argument
[INFO] [stderr]     |                |
[INFO] [stderr]     |                expected 2 arguments
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `power_level` found for struct `Grid` in the current scope
[INFO] [stderr]    --> src/11.rs:157:24
[INFO] [stderr]     |
[INFO] [stderr] 13  | struct Grid {
[INFO] [stderr]     | ----------- method `power_level` not found for this
[INFO] [stderr] ...
[INFO] [stderr] 157 |     assert_eq!(4, grid.power_level(3, 5));
[INFO] [stderr]     |                        ^^^^^^^^^^^ method not found in `Grid`
[INFO] [stderr] 
[INFO] [stderr] error[E0061]: this function takes 2 arguments but 1 argument was supplied
[INFO] [stderr]    --> src/11.rs:159:16
[INFO] [stderr]     |
[INFO] [stderr] 27  |     fn new(size: i64, serial_number: i64) -> Grid {
[INFO] [stderr]     |     --------------------------------------------- defined here
[INFO] [stderr] ...
[INFO] [stderr] 159 |     let grid = Grid::new(57);
[INFO] [stderr]     |                ^^^^^^^^^ -- supplied 1 argument
[INFO] [stderr]     |                |
[INFO] [stderr]     |                expected 2 arguments
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `power_level` found for struct `Grid` in the current scope
[INFO] [stderr]    --> src/11.rs:160:25
[INFO] [stderr]     |
[INFO] [stderr] 13  | struct Grid {
[INFO] [stderr]     | ----------- method `power_level` not found for this
[INFO] [stderr] ...
[INFO] [stderr] 160 |     assert_eq!(-5, grid.power_level(122, 79));
[INFO] [stderr]     |                         ^^^^^^^^^^^ method not found in `Grid`
[INFO] [stderr] 
[INFO] [stderr] error[E0061]: this function takes 2 arguments but 1 argument was supplied
[INFO] [stderr]    --> src/11.rs:162:16
[INFO] [stderr]     |
[INFO] [stderr] 27  |     fn new(size: i64, serial_number: i64) -> Grid {
[INFO] [stderr]     |     --------------------------------------------- defined here
[INFO] [stderr] ...
[INFO] [stderr] 162 |     let grid = Grid::new(39);
[INFO] [stderr]     |                ^^^^^^^^^ -- supplied 1 argument
[INFO] [stderr]     |                |
[INFO] [stderr]     |                expected 2 arguments
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `power_level` found for struct `Grid` in the current scope
[INFO] [stderr]    --> src/11.rs:163:24
[INFO] [stderr]     |
[INFO] [stderr] 13  | struct Grid {
[INFO] [stderr]     | ----------- method `power_level` not found for this
[INFO] [stderr] ...
[INFO] [stderr] 163 |     assert_eq!(0, grid.power_level(217, 196));
[INFO] [stderr]     |                        ^^^^^^^^^^^ method not found in `Grid`
[INFO] [stderr] 
[INFO] [stderr] error[E0061]: this function takes 2 arguments but 1 argument was supplied
[INFO] [stderr]    --> src/11.rs:165:16
[INFO] [stderr]     |
[INFO] [stderr] 27  |     fn new(size: i64, serial_number: i64) -> Grid {
[INFO] [stderr]     |     --------------------------------------------- defined here
[INFO] [stderr] ...
[INFO] [stderr] 165 |     let grid = Grid::new(71);
[INFO] [stderr]     |                ^^^^^^^^^ -- supplied 1 argument
[INFO] [stderr]     |                |
[INFO] [stderr]     |                expected 2 arguments
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `power_level` found for struct `Grid` in the current scope
[INFO] [stderr]    --> src/11.rs:166:24
[INFO] [stderr]     |
[INFO] [stderr] 13  | struct Grid {
[INFO] [stderr]     | ----------- method `power_level` not found for this
[INFO] [stderr] ...
[INFO] [stderr] 166 |     assert_eq!(4, grid.power_level(101, 153));
[INFO] [stderr]     |                        ^^^^^^^^^^^ method not found in `Grid`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 8 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0061, E0599.
[INFO] [stderr] For more information about an error, try `rustc --explain E0061`.
[INFO] [stderr] error: could not compile `advent-of-code`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/03.rs:75:25
[INFO] [stderr]    |
[INFO] [stderr] 75 |                     let mut entry = map.entry((x, y)).or_insert_with(Vec::new);
[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/02.rs:15:17
[INFO] [stderr]    |
[INFO] [stderr] 15 |             let mut entry = frequencies.entry(c).or_insert(0);
[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/03.rs:75:25
[INFO] [stderr]    |
[INFO] [stderr] 75 |                     let mut entry = map.entry((x, y)).or_insert_with(Vec::new);
[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] error: build failed
[INFO] running `"docker" "inspect" "b072481d1759ddb0fd951933de123f1403e88ad72e10be73ec236dd89f820869"`
[INFO] running `"docker" "rm" "-f" "b072481d1759ddb0fd951933de123f1403e88ad72e10be73ec236dd89f820869"`
[INFO] [stdout] b072481d1759ddb0fd951933de123f1403e88ad72e10be73ec236dd89f820869
