[INFO] cloning repository https://github.com/tristan/adventofcode2020
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tristan/adventofcode2020" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftristan%2Fadventofcode2020", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftristan%2Fadventofcode2020'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 44a55bddeedee868b915243e157c8cdbfbaf8348
[INFO] checking tristan/adventofcode2020 against try#1bdcb63291ccffc030f8223f6f978568dd240e3e for 155501-infallible-never-with-reservation
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftristan%2Fadventofcode2020" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/tristan/adventofcode2020
[INFO] finished tweaking git repo https://github.com/tristan/adventofcode2020
[INFO] tweaked toml for git repo https://github.com/tristan/adventofcode2020 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/tristan/adventofcode2020 on toolchain 1bdcb63291ccffc030f8223f6f978568dd240e3e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1bdcb63291ccffc030f8223f6f978568dd240e3e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/tristan/adventofcode2020 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1bdcb63291ccffc030f8223f6f978568dd240e3e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1bdcb63291ccffc030f8223f6f978568dd240e3e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bf9b6381b1e6156bfa7f264b0cbb25442104d2caea7ae7220c195ff7d4fd82f1
[INFO] running `Command { std: "docker" "start" "-a" "bf9b6381b1e6156bfa7f264b0cbb25442104d2caea7ae7220c195ff7d4fd82f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bf9b6381b1e6156bfa7f264b0cbb25442104d2caea7ae7220c195ff7d4fd82f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf9b6381b1e6156bfa7f264b0cbb25442104d2caea7ae7220c195ff7d4fd82f1", kill_on_drop: false }`
[INFO] [stdout] bf9b6381b1e6156bfa7f264b0cbb25442104d2caea7ae7220c195ff7d4fd82f1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1bdcb63291ccffc030f8223f6f978568dd240e3e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0e91c6967a9341f5758c8e722d47fe50ab101d88922e307f1005032ae0532e84
[INFO] running `Command { std: "docker" "start" "-a" "0e91c6967a9341f5758c8e722d47fe50ab101d88922e307f1005032ae0532e84", kill_on_drop: false }`
[INFO] [stderr]     Checking adventofcode2020 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]   --> src/day_15.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 24 |     use super::*;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `part1` in this scope
[INFO] [stdout]   --> src/day_15.rs:28:20
[INFO] [stdout]    |
[INFO] [stdout] 28 |         assert_eq!(part1(&[0,3,6], 2020), 436);
[INFO] [stdout]    |                    ^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `part1` in this scope
[INFO] [stdout]   --> src/day_15.rs:29:20
[INFO] [stdout]    |
[INFO] [stdout] 29 |         assert_eq!(part1(&[1,3,2], 2020), 1);
[INFO] [stdout]    |                    ^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `part1` in this scope
[INFO] [stdout]   --> src/day_15.rs:30:20
[INFO] [stdout]    |
[INFO] [stdout] 30 |         assert_eq!(part1(&[2,1,3], 2020), 10);
[INFO] [stdout]    |                    ^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `part1` in this scope
[INFO] [stdout]   --> src/day_15.rs:31:20
[INFO] [stdout]    |
[INFO] [stdout] 31 |         assert_eq!(part1(&[1,2,3], 2020), 27);
[INFO] [stdout]    |                    ^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `part1` in this scope
[INFO] [stdout]   --> src/day_15.rs:32:20
[INFO] [stdout]    |
[INFO] [stdout] 32 |         assert_eq!(part1(&[2,3,1], 2020), 78);
[INFO] [stdout]    |                    ^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `part1` in this scope
[INFO] [stdout]   --> src/day_15.rs:33:20
[INFO] [stdout]    |
[INFO] [stdout] 33 |         assert_eq!(part1(&[3,2,1], 2020), 438);
[INFO] [stdout]    |                    ^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `part1` in this scope
[INFO] [stdout]   --> src/day_15.rs:34:20
[INFO] [stdout]    |
[INFO] [stdout] 34 |         assert_eq!(part1(&[3,1,2], 2020), 1836);
[INFO] [stdout]    |                    ^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `adventofcode2020` (bin "day_15" test) due to 7 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/day_11.rs:147:26
[INFO] [stdout]     |
[INFO] [stdout] 147 |             .unwrap_or(0);
[INFO] [stdout]     |                          ^
[INFO] [stdout] ...
[INFO] [stdout] 152 |     let topleft = check!(state, (0..x).rev(), (0..y).rev());
[INFO] [stdout]     |                   ----------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: `#[deny(semicolon_in_expressions_from_macros)]` (part of `#[deny(future_incompatible)]`) on by default
[INFO] [stdout]     = note: this error originates in the macro `check` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/day_11.rs:147:26
[INFO] [stdout]     |
[INFO] [stdout] 147 |             .unwrap_or(0);
[INFO] [stdout]     |                          ^
[INFO] [stdout] ...
[INFO] [stdout] 153 |     let topmiddle = check!(state, repeat(x), (0..y).rev());
[INFO] [stdout]     |                     -------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: this error originates in the macro `check` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/day_11.rs:147:26
[INFO] [stdout]     |
[INFO] [stdout] 147 |             .unwrap_or(0);
[INFO] [stdout]     |                          ^
[INFO] [stdout] ...
[INFO] [stdout] 154 |     let topright = check!(state, x+1.., (0..y).rev());
[INFO] [stdout]     |                    ---------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: this error originates in the macro `check` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/day_11.rs:147:26
[INFO] [stdout]     |
[INFO] [stdout] 147 |             .unwrap_or(0);
[INFO] [stdout]     |                          ^
[INFO] [stdout] ...
[INFO] [stdout] 155 |     let left = check!(state, (0..x).rev(), repeat(y));
[INFO] [stdout]     |                -------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: this error originates in the macro `check` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/day_11.rs:147:26
[INFO] [stdout]     |
[INFO] [stdout] 147 |             .unwrap_or(0);
[INFO] [stdout]     |                          ^
[INFO] [stdout] ...
[INFO] [stdout] 156 |     let right = check!(state, x+1.., repeat(y));
[INFO] [stdout]     |                 ------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: this error originates in the macro `check` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/day_11.rs:147:26
[INFO] [stdout]     |
[INFO] [stdout] 147 |             .unwrap_or(0);
[INFO] [stdout]     |                          ^
[INFO] [stdout] ...
[INFO] [stdout] 157 |     let bottomleft = check!(state, (0..x).rev(), y+1..);
[INFO] [stdout]     |                      ---------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: this error originates in the macro `check` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/day_11.rs:147:26
[INFO] [stdout]     |
[INFO] [stdout] 147 |             .unwrap_or(0);
[INFO] [stdout]     |                          ^
[INFO] [stdout] ...
[INFO] [stdout] 158 |     let bottommiddle = check!(state, repeat(x), y+1..);
[INFO] [stdout]     |                        ------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: this error originates in the macro `check` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/day_11.rs:147:26
[INFO] [stdout]     |
[INFO] [stdout] 147 |             .unwrap_or(0);
[INFO] [stdout]     |                          ^
[INFO] [stdout] ...
[INFO] [stdout] 159 |     let bottomright = check!(state, x+1.., y+1..);
[INFO] [stdout]     |                       --------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: this error originates in the macro `check` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/day_11.rs:147:26
[INFO] [stdout]     |
[INFO] [stdout] 147 |             .unwrap_or(0);
[INFO] [stdout]     |                          ^
[INFO] [stdout] ...
[INFO] [stdout] 152 |     let topleft = check!(state, (0..x).rev(), (0..y).rev());
[INFO] [stdout]     |                   ----------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: `#[deny(semicolon_in_expressions_from_macros)]` (part of `#[deny(future_incompatible)]`) on by default
[INFO] [stdout]     = note: this error originates in the macro `check` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/day_11.rs:147:26
[INFO] [stdout]     |
[INFO] [stdout] 147 |             .unwrap_or(0);
[INFO] [stdout]     |                          ^
[INFO] [stdout] ...
[INFO] [stdout] 153 |     let topmiddle = check!(state, repeat(x), (0..y).rev());
[INFO] [stdout]     |                     -------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: this error originates in the macro `check` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/day_11.rs:147:26
[INFO] [stdout]     |
[INFO] [stdout] 147 |             .unwrap_or(0);
[INFO] [stdout]     |                          ^
[INFO] [stdout] ...
[INFO] [stdout] 154 |     let topright = check!(state, x+1.., (0..y).rev());
[INFO] [stdout]     |                    ---------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: this error originates in the macro `check` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/day_11.rs:147:26
[INFO] [stdout]     |
[INFO] [stdout] 147 |             .unwrap_or(0);
[INFO] [stdout]     |                          ^
[INFO] [stdout] ...
[INFO] [stdout] 155 |     let left = check!(state, (0..x).rev(), repeat(y));
[INFO] [stdout]     |                -------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: this error originates in the macro `check` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/day_11.rs:147:26
[INFO] [stdout]     |
[INFO] [stdout] 147 |             .unwrap_or(0);
[INFO] [stdout]     |                          ^
[INFO] [stdout] ...
[INFO] [stdout] 156 |     let right = check!(state, x+1.., repeat(y));
[INFO] [stdout]     |                 ------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: this error originates in the macro `check` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/day_11.rs:147:26
[INFO] [stdout]     |
[INFO] [stdout] 147 |             .unwrap_or(0);
[INFO] [stdout]     |                          ^
[INFO] [stdout] ...
[INFO] [stdout] 157 |     let bottomleft = check!(state, (0..x).rev(), y+1..);
[INFO] [stdout]     |                      ---------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: this error originates in the macro `check` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/day_11.rs:147:26
[INFO] [stdout]     |
[INFO] [stdout] 147 |             .unwrap_or(0);
[INFO] [stdout]     |                          ^
[INFO] [stdout] ...
[INFO] [stdout] 158 |     let bottommiddle = check!(state, repeat(x), y+1..);
[INFO] [stdout]     |                        ------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: this error originates in the macro `check` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/day_11.rs:147:26
[INFO] [stdout]     |
[INFO] [stdout] 147 |             .unwrap_or(0);
[INFO] [stdout]     |                          ^
[INFO] [stdout] ...
[INFO] [stdout] 159 |     let bottomright = check!(state, x+1.., y+1..);
[INFO] [stdout]     |                       --------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: this error originates in the macro `check` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `adventofcode2020` (bin "day_11") due to 16 previous errors
[INFO] [stdout] warning: method `print` is never used
[INFO] [stdout]    --> src/day_17.rs:106:8
[INFO] [stdout]     |
[INFO] [stdout]  15 | impl PocketDimension3d {
[INFO] [stdout]     | ---------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 106 |     fn print(&self) {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `adventofcode2020` (bin "day_11" test) due to 16 previous errors
[INFO] running `Command { std: "docker" "inspect" "0e91c6967a9341f5758c8e722d47fe50ab101d88922e307f1005032ae0532e84", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e91c6967a9341f5758c8e722d47fe50ab101d88922e307f1005032ae0532e84", kill_on_drop: false }`
[INFO] [stdout] 0e91c6967a9341f5758c8e722d47fe50ab101d88922e307f1005032ae0532e84
