[INFO] cloning repository https://github.com/jasilven/aoc-2016-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jasilven/aoc-2016-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjasilven%2Faoc-2016-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjasilven%2Faoc-2016-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e3a17cab00c1f511302d6250c0920b0f0f10104f
[INFO] building jasilven/aoc-2016-rust against try#8aaecdf5df68a6fbc126704e44d399ba2fe66bf2 for pr-94962
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjasilven%2Faoc-2016-rust" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jasilven/aoc-2016-rust on toolchain 8aaecdf5df68a6fbc126704e44d399ba2fe66bf2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8aaecdf5df68a6fbc126704e44d399ba2fe66bf2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jasilven/aoc-2016-rust
[INFO] finished tweaking git repo https://github.com/jasilven/aoc-2016-rust
[INFO] tweaked toml for git repo https://github.com/jasilven/aoc-2016-rust written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8aaecdf5df68a6fbc126704e44d399ba2fe66bf2" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8aaecdf5df68a6fbc126704e44d399ba2fe66bf2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+8aaecdf5df68a6fbc126704e44d399ba2fe66bf2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 51bdaeb16e6aeff39d88a555c0891558075d5f0e304becc2a71ca715f2d2e7c7
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "51bdaeb16e6aeff39d88a555c0891558075d5f0e304becc2a71ca715f2d2e7c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "51bdaeb16e6aeff39d88a555c0891558075d5f0e304becc2a71ca715f2d2e7c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51bdaeb16e6aeff39d88a555c0891558075d5f0e304becc2a71ca715f2d2e7c7", kill_on_drop: false }`
[INFO] [stdout] 51bdaeb16e6aeff39d88a555c0891558075d5f0e304becc2a71ca715f2d2e7c7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+8aaecdf5df68a6fbc126704e44d399ba2fe66bf2" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bbafa4fee19cd4d6cde6f4de5f85155e5303f9ab4f5779ac2a85095dc83af251
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "bbafa4fee19cd4d6cde6f4de5f85155e5303f9ab4f5779ac2a85095dc83af251", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.8
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling libc v0.2.121
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling permutohedron v0.2.4
[INFO] [stderr]    Compiling md5 v0.6.1
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.8
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling crossbeam-channel v0.5.4
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling num_cpus v1.13.1
[INFO] [stderr]    Compiling crossbeam-deque v0.8.1
[INFO] [stderr]    Compiling regex v1.5.5
[INFO] [stderr]    Compiling aoc_2016 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:38:65
[INFO] [stdout]    |
[INFO] [stdout] 38 | pub fn parse_assembunny(fname: &str) -> Result<Vec<OpCode>, Box<Error>> {
[INFO] [stdout]    |                                                                 ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 38 - pub fn parse_assembunny(fname: &str) -> Result<Vec<OpCode>, Box<Error>> {
[INFO] [stdout] 38 + pub fn parse_assembunny(fname: &str) -> Result<Vec<OpCode>, Box<dyn Error>> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:61:84
[INFO] [stdout]    |
[INFO] [stdout] 61 | pub fn execute_assembunny(prog: &mut [OpCode], regs: &mut [i32]) -> Result<(), Box<Error>> {
[INFO] [stdout]    |                                                                                    ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 61 - pub fn execute_assembunny(prog: &mut [OpCode], regs: &mut [i32]) -> Result<(), Box<Error>> {
[INFO] [stdout] 61 + pub fn execute_assembunny(prog: &mut [OpCode], regs: &mut [i32]) -> Result<(), Box<dyn Error>> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/bin/aoc/mod.rs:21:85
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub fn parse_map(fname: &str, discard: &[char]) -> Result<HashMap<Point, char>, Box<Error>> {
[INFO] [stdout]    |                                                                                     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 21 - pub fn parse_map(fname: &str, discard: &[char]) -> Result<HashMap<Point, char>, Box<Error>> {
[INFO] [stdout] 21 + pub fn parse_map(fname: &str, discard: &[char]) -> Result<HashMap<Point, char>, Box<dyn Error>> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/bin/aoc/mod.rs:45:60
[INFO] [stdout]    |
[INFO] [stdout] 45 |     pub fn parse_matrix(fname: &str) -> Result<Matrix, Box<Error>> {
[INFO] [stdout]    |                                                            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 45 -     pub fn parse_matrix(fname: &str) -> Result<Matrix, Box<Error>> {
[INFO] [stdout] 45 +     pub fn parse_matrix(fname: &str) -> Result<Matrix, Box<dyn Error>> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/bin/aoc/mod.rs:21:85
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub fn parse_map(fname: &str, discard: &[char]) -> Result<HashMap<Point, char>, Box<Error>> {
[INFO] [stdout]    |                                                                                     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 21 - pub fn parse_map(fname: &str, discard: &[char]) -> Result<HashMap<Point, char>, Box<Error>> {
[INFO] [stdout] 21 + pub fn parse_map(fname: &str, discard: &[char]) -> Result<HashMap<Point, char>, Box<dyn Error>> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/bin/aoc/mod.rs:21:85
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub fn parse_map(fname: &str, discard: &[char]) -> Result<HashMap<Point, char>, Box<Error>> {
[INFO] [stdout]    |                                                                                     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 21 - pub fn parse_map(fname: &str, discard: &[char]) -> Result<HashMap<Point, char>, Box<Error>> {
[INFO] [stdout] 21 + pub fn parse_map(fname: &str, discard: &[char]) -> Result<HashMap<Point, char>, Box<dyn Error>> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/bin/aoc/mod.rs:45:60
[INFO] [stdout]    |
[INFO] [stdout] 45 |     pub fn parse_matrix(fname: &str) -> Result<Matrix, Box<Error>> {
[INFO] [stdout]    |                                                            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 45 -     pub fn parse_matrix(fname: &str) -> Result<Matrix, Box<Error>> {
[INFO] [stdout] 45 +     pub fn parse_matrix(fname: &str) -> Result<Matrix, Box<dyn Error>> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/bin/aoc/mod.rs:45:60
[INFO] [stdout]    |
[INFO] [stdout] 45 |     pub fn parse_matrix(fname: &str) -> Result<Matrix, Box<Error>> {
[INFO] [stdout]    |                                                            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 45 -     pub fn parse_matrix(fname: &str) -> Result<Matrix, Box<Error>> {
[INFO] [stdout] 45 +     pub fn parse_matrix(fname: &str) -> Result<Matrix, Box<dyn Error>> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/bin/aoc/mod.rs:21:85
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub fn parse_map(fname: &str, discard: &[char]) -> Result<HashMap<Point, char>, Box<Error>> {
[INFO] [stdout]    |                                                                                     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 21 - pub fn parse_map(fname: &str, discard: &[char]) -> Result<HashMap<Point, char>, Box<Error>> {
[INFO] [stdout] 21 + pub fn parse_map(fname: &str, discard: &[char]) -> Result<HashMap<Point, char>, Box<dyn Error>> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/bin/aoc/mod.rs:45:60
[INFO] [stdout]    |
[INFO] [stdout] 45 |     pub fn parse_matrix(fname: &str) -> Result<Matrix, Box<Error>> {
[INFO] [stdout]    |                                                            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 45 -     pub fn parse_matrix(fname: &str) -> Result<Matrix, Box<Error>> {
[INFO] [stdout] 45 +     pub fn parse_matrix(fname: &str) -> Result<Matrix, Box<dyn Error>> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/bin/aoc/mod.rs:21:85
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub fn parse_map(fname: &str, discard: &[char]) -> Result<HashMap<Point, char>, Box<Error>> {
[INFO] [stdout]    |                                                                                     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 21 - pub fn parse_map(fname: &str, discard: &[char]) -> Result<HashMap<Point, char>, Box<Error>> {
[INFO] [stdout] 21 + pub fn parse_map(fname: &str, discard: &[char]) -> Result<HashMap<Point, char>, Box<dyn Error>> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/bin/aoc/mod.rs:45:60
[INFO] [stdout]    |
[INFO] [stdout] 45 |     pub fn parse_matrix(fname: &str) -> Result<Matrix, Box<Error>> {
[INFO] [stdout]    |                                                            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 45 -     pub fn parse_matrix(fname: &str) -> Result<Matrix, Box<Error>> {
[INFO] [stdout] 45 +     pub fn parse_matrix(fname: &str) -> Result<Matrix, Box<dyn Error>> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/bin/aoc/mod.rs:21:85
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub fn parse_map(fname: &str, discard: &[char]) -> Result<HashMap<Point, char>, Box<Error>> {
[INFO] [stdout]    |                                                                                     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 21 - pub fn parse_map(fname: &str, discard: &[char]) -> Result<HashMap<Point, char>, Box<Error>> {
[INFO] [stdout] 21 + pub fn parse_map(fname: &str, discard: &[char]) -> Result<HashMap<Point, char>, Box<dyn Error>> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/bin/aoc/mod.rs:45:60
[INFO] [stdout]    |
[INFO] [stdout] 45 |     pub fn parse_matrix(fname: &str) -> Result<Matrix, Box<Error>> {
[INFO] [stdout]    |                                                            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 45 -     pub fn parse_matrix(fname: &str) -> Result<Matrix, Box<Error>> {
[INFO] [stdout] 45 +     pub fn parse_matrix(fname: &str) -> Result<Matrix, Box<dyn Error>> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/bin/aoc/mod.rs:21:85
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub fn parse_map(fname: &str, discard: &[char]) -> Result<HashMap<Point, char>, Box<Error>> {
[INFO] [stdout]    |                                                                                     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 21 - pub fn parse_map(fname: &str, discard: &[char]) -> Result<HashMap<Point, char>, Box<Error>> {
[INFO] [stdout] 21 + pub fn parse_map(fname: &str, discard: &[char]) -> Result<HashMap<Point, char>, Box<dyn Error>> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/bin/aoc/mod.rs:45:60
[INFO] [stdout]    |
[INFO] [stdout] 45 |     pub fn parse_matrix(fname: &str) -> Result<Matrix, Box<Error>> {
[INFO] [stdout]    |                                                            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 45 -     pub fn parse_matrix(fname: &str) -> Result<Matrix, Box<Error>> {
[INFO] [stdout] 45 +     pub fn parse_matrix(fname: &str) -> Result<Matrix, Box<dyn Error>> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/bin/aoc/mod.rs:21:85
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub fn parse_map(fname: &str, discard: &[char]) -> Result<HashMap<Point, char>, Box<Error>> {
[INFO] [stdout]    |                                                                                     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 21 - pub fn parse_map(fname: &str, discard: &[char]) -> Result<HashMap<Point, char>, Box<Error>> {
[INFO] [stdout] 21 + pub fn parse_map(fname: &str, discard: &[char]) -> Result<HashMap<Point, char>, Box<dyn Error>> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/bin/aoc/mod.rs:45:60
[INFO] [stdout]    |
[INFO] [stdout] 45 |     pub fn parse_matrix(fname: &str) -> Result<Matrix, Box<Error>> {
[INFO] [stdout]    |                                                            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 45 -     pub fn parse_matrix(fname: &str) -> Result<Matrix, Box<Error>> {
[INFO] [stdout] 45 +     pub fn parse_matrix(fname: &str) -> Result<Matrix, Box<dyn Error>> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/bin/aoc/mod.rs:21:85
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub fn parse_map(fname: &str, discard: &[char]) -> Result<HashMap<Point, char>, Box<Error>> {
[INFO] [stdout]    |                                                                                     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 21 - pub fn parse_map(fname: &str, discard: &[char]) -> Result<HashMap<Point, char>, Box<Error>> {
[INFO] [stdout] 21 + pub fn parse_map(fname: &str, discard: &[char]) -> Result<HashMap<Point, char>, Box<dyn Error>> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/bin/aoc/mod.rs:45:60
[INFO] [stdout]    |
[INFO] [stdout] 45 |     pub fn parse_matrix(fname: &str) -> Result<Matrix, Box<Error>> {
[INFO] [stdout]    |                                                            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 45 -     pub fn parse_matrix(fname: &str) -> Result<Matrix, Box<Error>> {
[INFO] [stdout] 45 +     pub fn parse_matrix(fname: &str) -> Result<Matrix, Box<dyn Error>> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/bin/aoc/mod.rs:21:85
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub fn parse_map(fname: &str, discard: &[char]) -> Result<HashMap<Point, char>, Box<Error>> {
[INFO] [stdout]    |                                                                                     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 21 - pub fn parse_map(fname: &str, discard: &[char]) -> Result<HashMap<Point, char>, Box<Error>> {
[INFO] [stdout] 21 + pub fn parse_map(fname: &str, discard: &[char]) -> Result<HashMap<Point, char>, Box<dyn Error>> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/bin/aoc/mod.rs:45:60
[INFO] [stdout]    |
[INFO] [stdout] 45 |     pub fn parse_matrix(fname: &str) -> Result<Matrix, Box<Error>> {
[INFO] [stdout]    |                                                            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 45 -     pub fn parse_matrix(fname: &str) -> Result<Matrix, Box<Error>> {
[INFO] [stdout] 45 +     pub fn parse_matrix(fname: &str) -> Result<Matrix, Box<dyn Error>> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/bin/aoc/mod.rs:21:85
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub fn parse_map(fname: &str, discard: &[char]) -> Result<HashMap<Point, char>, Box<Error>> {
[INFO] [stdout]    |                                                                                     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 21 - pub fn parse_map(fname: &str, discard: &[char]) -> Result<HashMap<Point, char>, Box<Error>> {
[INFO] [stdout] 21 + pub fn parse_map(fname: &str, discard: &[char]) -> Result<HashMap<Point, char>, Box<dyn Error>> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/bin/aoc/mod.rs:45:60
[INFO] [stdout]    |
[INFO] [stdout] 45 |     pub fn parse_matrix(fname: &str) -> Result<Matrix, Box<Error>> {
[INFO] [stdout]    |                                                            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 45 -     pub fn parse_matrix(fname: &str) -> Result<Matrix, Box<Error>> {
[INFO] [stdout] 45 +     pub fn parse_matrix(fname: &str) -> Result<Matrix, Box<dyn Error>> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/bin/aoc/mod.rs:21:85
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub fn parse_map(fname: &str, discard: &[char]) -> Result<HashMap<Point, char>, Box<Error>> {
[INFO] [stdout]    |                                                                                     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 21 - pub fn parse_map(fname: &str, discard: &[char]) -> Result<HashMap<Point, char>, Box<Error>> {
[INFO] [stdout] 21 + pub fn parse_map(fname: &str, discard: &[char]) -> Result<HashMap<Point, char>, Box<dyn Error>> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/bin/aoc/mod.rs:45:60
[INFO] [stdout]    |
[INFO] [stdout] 45 |     pub fn parse_matrix(fname: &str) -> Result<Matrix, Box<Error>> {
[INFO] [stdout]    |                                                            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 45 -     pub fn parse_matrix(fname: &str) -> Result<Matrix, Box<Error>> {
[INFO] [stdout] 45 +     pub fn parse_matrix(fname: &str) -> Result<Matrix, Box<dyn Error>> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/bin/aoc/mod.rs:21:85
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub fn parse_map(fname: &str, discard: &[char]) -> Result<HashMap<Point, char>, Box<Error>> {
[INFO] [stdout]    |                                                                                     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 21 - pub fn parse_map(fname: &str, discard: &[char]) -> Result<HashMap<Point, char>, Box<Error>> {
[INFO] [stdout] 21 + pub fn parse_map(fname: &str, discard: &[char]) -> Result<HashMap<Point, char>, Box<dyn Error>> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/bin/aoc/mod.rs:45:60
[INFO] [stdout]    |
[INFO] [stdout] 45 |     pub fn parse_matrix(fname: &str) -> Result<Matrix, Box<Error>> {
[INFO] [stdout]    |                                                            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 45 -     pub fn parse_matrix(fname: &str) -> Result<Matrix, Box<Error>> {
[INFO] [stdout] 45 +     pub fn parse_matrix(fname: &str) -> Result<Matrix, Box<dyn Error>> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 35.42s
[INFO] running `Command { std: "docker" "inspect" "bbafa4fee19cd4d6cde6f4de5f85155e5303f9ab4f5779ac2a85095dc83af251", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bbafa4fee19cd4d6cde6f4de5f85155e5303f9ab4f5779ac2a85095dc83af251", kill_on_drop: false }`
[INFO] [stdout] bbafa4fee19cd4d6cde6f4de5f85155e5303f9ab4f5779ac2a85095dc83af251
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+8aaecdf5df68a6fbc126704e44d399ba2fe66bf2" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d1c67364196bc1e4293e288c4b96b6aa20066ae11c9d20b2a16c54a16024935f
[INFO] running `Command { std: "docker" "start" "-a" "d1c67364196bc1e4293e288c4b96b6aa20066ae11c9d20b2a16c54a16024935f", kill_on_drop: false }`
[INFO] [stderr]    Compiling aoc_2016 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:38:65
[INFO] [stdout]    |
[INFO] [stdout] 38 | pub fn parse_assembunny(fname: &str) -> Result<Vec<OpCode>, Box<Error>> {
[INFO] [stdout]    |                                                                 ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 38 - pub fn parse_assembunny(fname: &str) -> Result<Vec<OpCode>, Box<Error>> {
[INFO] [stdout] 38 + pub fn parse_assembunny(fname: &str) -> Result<Vec<OpCode>, Box<dyn Error>> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:61:84
[INFO] [stdout]    |
[INFO] [stdout] 61 | pub fn execute_assembunny(prog: &mut [OpCode], regs: &mut [i32]) -> Result<(), Box<Error>> {
[INFO] [stdout]    |                                                                                    ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 61 - pub fn execute_assembunny(prog: &mut [OpCode], regs: &mut [i32]) -> Result<(), Box<Error>> {
[INFO] [stdout] 61 + pub fn execute_assembunny(prog: &mut [OpCode], regs: &mut [i32]) -> Result<(), Box<dyn Error>> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/bin/aoc/mod.rs:21:85
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub fn parse_map(fname: &str, discard: &[char]) -> Result<HashMap<Point, char>, Box<Error>> {
[INFO] [stdout]    |                                                                                     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 21 - pub fn parse_map(fname: &str, discard: &[char]) -> Result<HashMap<Point, char>, Box<Error>> {
[INFO] [stdout] 21 + pub fn parse_map(fname: &str, discard: &[char]) -> Result<HashMap<Point, char>, Box<dyn Error>> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/bin/aoc/mod.rs:45:60
[INFO] [stdout]    |
[INFO] [stdout] 45 |     pub fn parse_matrix(fname: &str) -> Result<Matrix, Box<Error>> {
[INFO] [stdout]    |                                                            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 45 -     pub fn parse_matrix(fname: &str) -> Result<Matrix, Box<Error>> {
[INFO] [stdout] 45 +     pub fn parse_matrix(fname: &str) -> Result<Matrix, Box<dyn Error>> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:38:65
[INFO] [stdout]    |
[INFO] [stdout] 38 | pub fn parse_assembunny(fname: &str) -> Result<Vec<OpCode>, Box<Error>> {
[INFO] [stdout]    |                                                                 ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 38 - pub fn parse_assembunny(fname: &str) -> Result<Vec<OpCode>, Box<Error>> {
[INFO] [stdout] 38 + pub fn parse_assembunny(fname: &str) -> Result<Vec<OpCode>, Box<dyn Error>> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:61:84
[INFO] [stdout]    |
[INFO] [stdout] 61 | pub fn execute_assembunny(prog: &mut [OpCode], regs: &mut [i32]) -> Result<(), Box<Error>> {
[INFO] [stdout]    |                                                                                    ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 61 - pub fn execute_assembunny(prog: &mut [OpCode], regs: &mut [i32]) -> Result<(), Box<Error>> {
[INFO] [stdout] 61 + pub fn execute_assembunny(prog: &mut [OpCode], regs: &mut [i32]) -> Result<(), Box<dyn Error>> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/bin/aoc/mod.rs:21:85
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub fn parse_map(fname: &str, discard: &[char]) -> Result<HashMap<Point, char>, Box<Error>> {
[INFO] [stdout]    |                                                                                     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 21 - pub fn parse_map(fname: &str, discard: &[char]) -> Result<HashMap<Point, char>, Box<Error>> {
[INFO] [stdout] 21 + pub fn parse_map(fname: &str, discard: &[char]) -> Result<HashMap<Point, char>, Box<dyn Error>> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/bin/aoc/mod.rs:45:60
[INFO] [stdout]    |
[INFO] [stdout] 45 |     pub fn parse_matrix(fname: &str) -> Result<Matrix, Box<Error>> {
[INFO] [stdout]    |                                                            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 45 -     pub fn parse_matrix(fname: &str) -> Result<Matrix, Box<Error>> {
[INFO] [stdout] 45 +     pub fn parse_matrix(fname: &str) -> Result<Matrix, Box<dyn Error>> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/bin/aoc/mod.rs:21:85
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub fn parse_map(fname: &str, discard: &[char]) -> Result<HashMap<Point, char>, Box<Error>> {
[INFO] [stdout]    |                                                                                     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 21 - pub fn parse_map(fname: &str, discard: &[char]) -> Result<HashMap<Point, char>, Box<Error>> {
[INFO] [stdout] 21 + pub fn parse_map(fname: &str, discard: &[char]) -> Result<HashMap<Point, char>, Box<dyn Error>> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/bin/aoc/mod.rs:45:60
[INFO] [stdout]    |
[INFO] [stdout] 45 |     pub fn parse_matrix(fname: &str) -> Result<Matrix, Box<Error>> {
[INFO] [stdout]    |                                                            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 45 -     pub fn parse_matrix(fname: &str) -> Result<Matrix, Box<Error>> {
[INFO] [stdout] 45 +     pub fn parse_matrix(fname: &str) -> Result<Matrix, Box<dyn Error>> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/bin/aoc/mod.rs:21:85
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub fn parse_map(fname: &str, discard: &[char]) -> Result<HashMap<Point, char>, Box<Error>> {
[INFO] [stdout]    |                                                                                     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 21 - pub fn parse_map(fname: &str, discard: &[char]) -> Result<HashMap<Point, char>, Box<Error>> {
[INFO] [stdout] 21 + pub fn parse_map(fname: &str, discard: &[char]) -> Result<HashMap<Point, char>, Box<dyn Error>> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/bin/aoc/mod.rs:45:60
[INFO] [stdout]    |
[INFO] [stdout] 45 |     pub fn parse_matrix(fname: &str) -> Result<Matrix, Box<Error>> {
[INFO] [stdout]    |                                                            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 45 -     pub fn parse_matrix(fname: &str) -> Result<Matrix, Box<Error>> {
[INFO] [stdout] 45 +     pub fn parse_matrix(fname: &str) -> Result<Matrix, Box<dyn Error>> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/bin/aoc/mod.rs:21:85
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub fn parse_map(fname: &str, discard: &[char]) -> Result<HashMap<Point, char>, Box<Error>> {
[INFO] [stdout]    |                                                                                     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 21 - pub fn parse_map(fname: &str, discard: &[char]) -> Result<HashMap<Point, char>, Box<Error>> {
[INFO] [stdout] 21 + pub fn parse_map(fname: &str, discard: &[char]) -> Result<HashMap<Point, char>, Box<dyn Error>> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/bin/aoc/mod.rs:45:60
[INFO] [stdout]    |
[INFO] [stdout] 45 |     pub fn parse_matrix(fname: &str) -> Result<Matrix, Box<Error>> {
[INFO] [stdout]    |                                                            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 45 -     pub fn parse_matrix(fname: &str) -> Result<Matrix, Box<Error>> {
[INFO] [stdout] 45 +     pub fn parse_matrix(fname: &str) -> Result<Matrix, Box<dyn Error>> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/bin/aoc/mod.rs:21:85
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub fn parse_map(fname: &str, discard: &[char]) -> Result<HashMap<Point, char>, Box<Error>> {
[INFO] [stdout]    |                                                                                     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 21 - pub fn parse_map(fname: &str, discard: &[char]) -> Result<HashMap<Point, char>, Box<Error>> {
[INFO] [stdout] 21 + pub fn parse_map(fname: &str, discard: &[char]) -> Result<HashMap<Point, char>, Box<dyn Error>> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/bin/aoc/mod.rs:45:60
[INFO] [stdout]    |
[INFO] [stdout] 45 |     pub fn parse_matrix(fname: &str) -> Result<Matrix, Box<Error>> {
[INFO] [stdout]    |                                                            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 45 -     pub fn parse_matrix(fname: &str) -> Result<Matrix, Box<Error>> {
[INFO] [stdout] 45 +     pub fn parse_matrix(fname: &str) -> Result<Matrix, Box<dyn Error>> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/bin/aoc/mod.rs:21:85
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub fn parse_map(fname: &str, discard: &[char]) -> Result<HashMap<Point, char>, Box<Error>> {
[INFO] [stdout]    |                                                                                     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 21 - pub fn parse_map(fname: &str, discard: &[char]) -> Result<HashMap<Point, char>, Box<Error>> {
[INFO] [stdout] 21 + pub fn parse_map(fname: &str, discard: &[char]) -> Result<HashMap<Point, char>, Box<dyn Error>> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/bin/aoc/mod.rs:45:60
[INFO] [stdout]    |
[INFO] [stdout] 45 |     pub fn parse_matrix(fname: &str) -> Result<Matrix, Box<Error>> {
[INFO] [stdout]    |                                                            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 45 -     pub fn parse_matrix(fname: &str) -> Result<Matrix, Box<Error>> {
[INFO] [stdout] 45 +     pub fn parse_matrix(fname: &str) -> Result<Matrix, Box<dyn Error>> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/bin/aoc/mod.rs:21:85
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub fn parse_map(fname: &str, discard: &[char]) -> Result<HashMap<Point, char>, Box<Error>> {
[INFO] [stdout]    |                                                                                     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 21 - pub fn parse_map(fname: &str, discard: &[char]) -> Result<HashMap<Point, char>, Box<Error>> {
[INFO] [stdout] 21 + pub fn parse_map(fname: &str, discard: &[char]) -> Result<HashMap<Point, char>, Box<dyn Error>> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/bin/aoc/mod.rs:45:60
[INFO] [stdout]    |
[INFO] [stdout] 45 |     pub fn parse_matrix(fname: &str) -> Result<Matrix, Box<Error>> {
[INFO] [stdout]    |                                                            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 45 -     pub fn parse_matrix(fname: &str) -> Result<Matrix, Box<Error>> {
[INFO] [stdout] 45 +     pub fn parse_matrix(fname: &str) -> Result<Matrix, Box<dyn Error>> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/bin/aoc/mod.rs:21:85
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub fn parse_map(fname: &str, discard: &[char]) -> Result<HashMap<Point, char>, Box<Error>> {
[INFO] [stdout]    |                                                                                     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 21 - pub fn parse_map(fname: &str, discard: &[char]) -> Result<HashMap<Point, char>, Box<Error>> {
[INFO] [stdout] 21 + pub fn parse_map(fname: &str, discard: &[char]) -> Result<HashMap<Point, char>, Box<dyn Error>> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/bin/aoc/mod.rs:45:60
[INFO] [stdout]    |
[INFO] [stdout] 45 |     pub fn parse_matrix(fname: &str) -> Result<Matrix, Box<Error>> {
[INFO] [stdout]    |                                                            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 45 -     pub fn parse_matrix(fname: &str) -> Result<Matrix, Box<Error>> {
[INFO] [stdout] 45 +     pub fn parse_matrix(fname: &str) -> Result<Matrix, Box<dyn Error>> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/bin/aoc/mod.rs:21:85
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub fn parse_map(fname: &str, discard: &[char]) -> Result<HashMap<Point, char>, Box<Error>> {
[INFO] [stdout]    |                                                                                     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 21 - pub fn parse_map(fname: &str, discard: &[char]) -> Result<HashMap<Point, char>, Box<Error>> {
[INFO] [stdout] 21 + pub fn parse_map(fname: &str, discard: &[char]) -> Result<HashMap<Point, char>, Box<dyn Error>> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/bin/aoc/mod.rs:45:60
[INFO] [stdout]    |
[INFO] [stdout] 45 |     pub fn parse_matrix(fname: &str) -> Result<Matrix, Box<Error>> {
[INFO] [stdout]    |                                                            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 45 -     pub fn parse_matrix(fname: &str) -> Result<Matrix, Box<Error>> {
[INFO] [stdout] 45 +     pub fn parse_matrix(fname: &str) -> Result<Matrix, Box<dyn Error>> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/bin/aoc/mod.rs:21:85
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub fn parse_map(fname: &str, discard: &[char]) -> Result<HashMap<Point, char>, Box<Error>> {
[INFO] [stdout]    |                                                                                     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 21 - pub fn parse_map(fname: &str, discard: &[char]) -> Result<HashMap<Point, char>, Box<Error>> {
[INFO] [stdout] 21 + pub fn parse_map(fname: &str, discard: &[char]) -> Result<HashMap<Point, char>, Box<dyn Error>> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/bin/aoc/mod.rs:45:60
[INFO] [stdout]    |
[INFO] [stdout] 45 |     pub fn parse_matrix(fname: &str) -> Result<Matrix, Box<Error>> {
[INFO] [stdout]    |                                                            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 45 -     pub fn parse_matrix(fname: &str) -> Result<Matrix, Box<Error>> {
[INFO] [stdout] 45 +     pub fn parse_matrix(fname: &str) -> Result<Matrix, Box<dyn Error>> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/bin/aoc/mod.rs:21:85
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub fn parse_map(fname: &str, discard: &[char]) -> Result<HashMap<Point, char>, Box<Error>> {
[INFO] [stdout]    |                                                                                     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 21 - pub fn parse_map(fname: &str, discard: &[char]) -> Result<HashMap<Point, char>, Box<Error>> {
[INFO] [stdout] 21 + pub fn parse_map(fname: &str, discard: &[char]) -> Result<HashMap<Point, char>, Box<dyn Error>> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/bin/aoc/mod.rs:45:60
[INFO] [stdout]    |
[INFO] [stdout] 45 |     pub fn parse_matrix(fname: &str) -> Result<Matrix, Box<Error>> {
[INFO] [stdout]    |                                                            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 45 -     pub fn parse_matrix(fname: &str) -> Result<Matrix, Box<Error>> {
[INFO] [stdout] 45 +     pub fn parse_matrix(fname: &str) -> Result<Matrix, Box<dyn Error>> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/bin/aoc/mod.rs:21:85
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub fn parse_map(fname: &str, discard: &[char]) -> Result<HashMap<Point, char>, Box<Error>> {
[INFO] [stdout]    |                                                                                     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 21 - pub fn parse_map(fname: &str, discard: &[char]) -> Result<HashMap<Point, char>, Box<Error>> {
[INFO] [stdout] 21 + pub fn parse_map(fname: &str, discard: &[char]) -> Result<HashMap<Point, char>, Box<dyn Error>> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/bin/aoc/mod.rs:45:60
[INFO] [stdout]    |
[INFO] [stdout] 45 |     pub fn parse_matrix(fname: &str) -> Result<Matrix, Box<Error>> {
[INFO] [stdout]    |                                                            ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 45 -     pub fn parse_matrix(fname: &str) -> Result<Matrix, Box<Error>> {
[INFO] [stdout] 45 +     pub fn parse_matrix(fname: &str) -> Result<Matrix, Box<dyn Error>> {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 15.46s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/aoc_2016-24d6ff0e67aefc43)
[INFO] [stderr]   Executable unittests src/bin/day1.rs (/opt/rustwide/target/debug/deps/day1-c0b228a0d40cee9b)
[INFO] [stderr]   Executable unittests src/bin/day10.rs (/opt/rustwide/target/debug/deps/day10-e893117da125cc54)
[INFO] [stderr]   Executable unittests src/bin/day11.rs (/opt/rustwide/target/debug/deps/day11-105de787fc90058f)
[INFO] [stderr]   Executable unittests src/bin/day12.rs (/opt/rustwide/target/debug/deps/day12-69eb0e926836145c)
[INFO] [stderr]   Executable unittests src/bin/day13.rs (/opt/rustwide/target/debug/deps/day13-7e69272f95b5d68e)
[INFO] [stderr]   Executable unittests src/bin/day14.rs (/opt/rustwide/target/debug/deps/day14-0a5eb296474422e4)
[INFO] [stderr]   Executable unittests src/bin/day15.rs (/opt/rustwide/target/debug/deps/day15-5c40cdce2b954bf5)
[INFO] [stderr]   Executable unittests src/bin/day16.rs (/opt/rustwide/target/debug/deps/day16-0441b157efeb9fd6)
[INFO] [stderr]   Executable unittests src/bin/day17.rs (/opt/rustwide/target/debug/deps/day17-8a2dd86abeaa9c3c)
[INFO] [stderr]   Executable unittests src/bin/day18.rs (/opt/rustwide/target/debug/deps/day18-256ee2375766db1b)
[INFO] [stderr]   Executable unittests src/bin/day19.rs (/opt/rustwide/target/debug/deps/day19-764a1e9715c88402)
[INFO] [stderr]   Executable unittests src/bin/day2.rs (/opt/rustwide/target/debug/deps/day2-7a2d3a4bcd6c86e8)
[INFO] [stderr]   Executable unittests src/bin/day20.rs (/opt/rustwide/target/debug/deps/day20-159b163ebf336c84)
[INFO] [stderr]   Executable unittests src/bin/day21.rs (/opt/rustwide/target/debug/deps/day21-0c1650cea087620b)
[INFO] [stderr]   Executable unittests src/bin/day22.rs (/opt/rustwide/target/debug/deps/day22-622762313856f51a)
[INFO] [stderr]   Executable unittests src/bin/day23.rs (/opt/rustwide/target/debug/deps/day23-97b0765ed7601c8d)
[INFO] [stderr]   Executable unittests src/bin/day24.rs (/opt/rustwide/target/debug/deps/day24-fe9b927351bff4e8)
[INFO] [stderr]   Executable unittests src/bin/day25.rs (/opt/rustwide/target/debug/deps/day25-36d7d8a41a2198bc)
[INFO] [stderr]   Executable unittests src/bin/day3.rs (/opt/rustwide/target/debug/deps/day3-efeef82096d3c25a)
[INFO] [stderr]   Executable unittests src/bin/day4.rs (/opt/rustwide/target/debug/deps/day4-05f532aff980474d)
[INFO] [stderr]   Executable unittests src/bin/day5.rs (/opt/rustwide/target/debug/deps/day5-553bccf88dc0f233)
[INFO] [stderr]   Executable unittests src/bin/day6.rs (/opt/rustwide/target/debug/deps/day6-4dfd5b54097cf6b6)
[INFO] [stderr]   Executable unittests src/bin/day7.rs (/opt/rustwide/target/debug/deps/day7-163515ddaea6d23e)
[INFO] [stderr]   Executable unittests src/bin/day8.rs (/opt/rustwide/target/debug/deps/day8-7d29a5a824ddd525)
[INFO] [stderr]   Executable unittests src/bin/day9.rs (/opt/rustwide/target/debug/deps/day9-380618b03ec2e99d)
[INFO] [stderr]   Executable unittests src/bin/temp.rs (/opt/rustwide/target/debug/deps/temp-4859954b26be9136)
[INFO] running `Command { std: "docker" "inspect" "d1c67364196bc1e4293e288c4b96b6aa20066ae11c9d20b2a16c54a16024935f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1c67364196bc1e4293e288c4b96b6aa20066ae11c9d20b2a16c54a16024935f", kill_on_drop: false }`
[INFO] [stdout] d1c67364196bc1e4293e288c4b96b6aa20066ae11c9d20b2a16c54a16024935f