[INFO] cloning repository https://github.com/simon-frankau/advent_of_code_2018
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/simon-frankau/advent_of_code_2018" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsimon-frankau%2Fadvent_of_code_2018", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsimon-frankau%2Fadvent_of_code_2018'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d06bb4fdd03f254596e7607e0ba846ffbc7c3290
[INFO] testing simon-frankau/advent_of_code_2018 against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsimon-frankau%2Fadvent_of_code_2018" "/workspace/builds/worker-84/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-84/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/simon-frankau/advent_of_code_2018 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/simon-frankau/advent_of_code_2018
[INFO] finished tweaking git repo https://github.com/simon-frankau/advent_of_code_2018
[INFO] tweaked toml for git repo https://github.com/simon-frankau/advent_of_code_2018 written to /workspace/builds/worker-84/source/Cargo.toml
[INFO] crate git repo https://github.com/simon-frankau/advent_of_code_2018 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 885fdda5b712af06a69d6842117dbec26186d550ee1de97f8f2c91bd3b8e10d5
[INFO] running `Command { std: "docker" "start" "-a" "885fdda5b712af06a69d6842117dbec26186d550ee1de97f8f2c91bd3b8e10d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "885fdda5b712af06a69d6842117dbec26186d550ee1de97f8f2c91bd3b8e10d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "885fdda5b712af06a69d6842117dbec26186d550ee1de97f8f2c91bd3b8e10d5", kill_on_drop: false }`
[INFO] [stdout] 885fdda5b712af06a69d6842117dbec26186d550ee1de97f8f2c91bd3b8e10d5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8b0fd04e00cc0dd82801ad1044c3b2ac64a1ae00d57bb0d56785d0410a187327
[INFO] running `Command { std: "docker" "start" "-a" "8b0fd04e00cc0dd82801ad1044c3b2ac64a1ae00d57bb0d56785d0410a187327", kill_on_drop: false }`
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[INFO] [stderr]    Compiling day19 v0.1.0 (/opt/rustwide/workdir/day19)
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[INFO] [stderr]    Compiling day22b v0.1.0 (/opt/rustwide/workdir/day22b)
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[INFO] [stderr]    Compiling day18a v0.1.0 (/opt/rustwide/workdir/day18a)
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[INFO] [stderr]    Compiling day20b v0.1.0 (/opt/rustwide/workdir/day20b)
[INFO] [stderr]    Compiling day15a v0.1.0 (/opt/rustwide/workdir/day15a)
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[INFO] [stderr]    Compiling day03a v0.1.0 (/opt/rustwide/workdir/day03a)
[INFO] [stderr]    Compiling day02a v0.1.0 (/opt/rustwide/workdir/day02a)
[INFO] [stderr]    Compiling day14b v0.1.0 (/opt/rustwide/workdir/day14b)
[INFO] [stderr]    Compiling day16a v0.1.0 (/opt/rustwide/workdir/day16a)
[INFO] [stderr]    Compiling day11a v0.1.0 (/opt/rustwide/workdir/day11a)
[INFO] [stderr]    Compiling day15b v0.1.0 (/opt/rustwide/workdir/day15b)
[INFO] [stderr]    Compiling day05a v0.1.0 (/opt/rustwide/workdir/day05a)
[INFO] [stderr]    Compiling day14a v0.1.0 (/opt/rustwide/workdir/day14a)
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[INFO] [stderr]    Compiling day17 v0.1.0 (/opt/rustwide/workdir/day17)
[INFO] [stdout] warning: value assigned to `r1` is never read
[INFO] [stdout]  --> day21/src/main.rs:7:13
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let mut r1: i64 = 0;
[INFO] [stdout]   |             ^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]   = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `print_erosion_levels`
[INFO] [stdout]   --> day22a/src/main.rs:23:4
[INFO] [stdout]    |
[INFO] [stdout] 23 | fn print_erosion_levels(erosion_levels: &Vec<Vec<usize>>) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `elf_power`
[INFO] [stdout]    --> day15b/src/main.rs:361:9
[INFO] [stdout]     |
[INFO] [stdout] 361 |     let elf_power = 4;
[INFO] [stdout]     |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_elf_power`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `disp`
[INFO] [stdout]   --> day15b/src/main.rs:50:8
[INFO] [stdout]    |
[INFO] [stdout] 50 |     fn disp(&self) -> char {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `print_grid`
[INFO] [stdout]   --> day15b/src/main.rs:62:4
[INFO] [stdout]    |
[INFO] [stdout] 62 | fn print_grid(grid: &Vec<Vec<Square>>) {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `print_units`
[INFO] [stdout]   --> day15b/src/main.rs:71:4
[INFO] [stdout]    |
[INFO] [stdout] 71 | fn print_units(grid: &Vec<Vec<Square>>) {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `print_track`
[INFO] [stdout]   --> day13b/src/main.rs:74:4
[INFO] [stdout]    |
[INFO] [stdout] 74 | fn print_track(grid: &Vec<Vec<char>>) {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> day19/src/main.rs:106:80
[INFO] [stdout]     |
[INFO] [stdout] 106 |     let ip: usize = lines.next().unwrap().replace("#ip ", "").parse().unwrap();;
[INFO] [stdout]     |                                                                                ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `height`
[INFO] [stdout]   --> day18a/src/main.rs:61:9
[INFO] [stdout]    |
[INFO] [stdout] 61 |     let height = grid.len();
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_height`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `width`
[INFO] [stdout]   --> day18a/src/main.rs:62:9
[INFO] [stdout]    |
[INFO] [stdout] 62 |     let width = grid[0].len();
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_width`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `opcode`
[INFO] [stdout]  --> day16a/src/main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     opcode: usize,
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `TestCase` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]  --> day16a/src/main.rs:4:10
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[derive(Debug)]
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout]   = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `PATTERN_SIZE`
[INFO] [stdout]   --> day12b/src/main.rs:15:1
[INFO] [stdout]    |
[INFO] [stdout] 15 | const PATTERN_SIZE: i32 = 5;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `PATTERN_CENTRE`
[INFO] [stdout]   --> day12b/src/main.rs:16:1
[INFO] [stdout]    |
[INFO] [stdout] 16 | const PATTERN_CENTRE: i32 = 2;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `GENERATIONS`
[INFO] [stdout]   --> day12b/src/main.rs:17:1
[INFO] [stdout]    |
[INFO] [stdout] 17 | const GENERATIONS: i32 = 200;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_str`
[INFO] [stdout]   --> day12b/src/main.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 |     fn from_str(str: &str) -> State {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `update`
[INFO] [stdout]   --> day12b/src/main.rs:35:8
[INFO] [stdout]    |
[INFO] [stdout] 35 |     fn update(&self, plants: &HashSet<String>) -> State {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `score`
[INFO] [stdout]   --> day12b/src/main.rs:56:8
[INFO] [stdout]    |
[INFO] [stdout] 56 |     fn score(&self) -> i32 {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `build_map`
[INFO] [stdout]   --> day12b/src/main.rs:73:4
[INFO] [stdout]    |
[INFO] [stdout] 73 | fn build_map() -> HashSet<String> {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `max_x`
[INFO] [stdout]   --> day17/src/main.rs:83:5
[INFO] [stdout]    |
[INFO] [stdout] 83 |     max_x: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `height`
[INFO] [stdout]   --> day18b/src/main.rs:64:9
[INFO] [stdout]    |
[INFO] [stdout] 64 |     let height = grid.len();
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_height`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `width`
[INFO] [stdout]   --> day18b/src/main.rs:65:9
[INFO] [stdout]    |
[INFO] [stdout] 65 |     let width = grid[0].len();
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_width`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `print_grid`
[INFO] [stdout]  --> day18b/src/main.rs:9:4
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn print_grid(grid: &VecDeque<Vec<char>>) {
[INFO] [stdout]   |    ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 09s
[INFO] running `Command { std: "docker" "inspect" "8b0fd04e00cc0dd82801ad1044c3b2ac64a1ae00d57bb0d56785d0410a187327", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b0fd04e00cc0dd82801ad1044c3b2ac64a1ae00d57bb0d56785d0410a187327", kill_on_drop: false }`
[INFO] [stdout] 8b0fd04e00cc0dd82801ad1044c3b2ac64a1ae00d57bb0d56785d0410a187327
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4760f84fcc22b15705dcbde22d567378e6adbc3429336a054ec71570fc31d3e2
[INFO] running `Command { std: "docker" "start" "-a" "4760f84fcc22b15705dcbde22d567378e6adbc3429336a054ec71570fc31d3e2", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling day08b v0.1.0 (/opt/rustwide/workdir/day08b)
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[INFO] [stderr]    Compiling day10 v0.1.0 (/opt/rustwide/workdir/day10)
[INFO] [stderr]    Compiling day15a v0.1.0 (/opt/rustwide/workdir/day15a)
[INFO] [stderr]    Compiling day02a v0.1.0 (/opt/rustwide/workdir/day02a)
[INFO] [stderr]    Compiling day23b v0.1.0 (/opt/rustwide/workdir/day23b)
[INFO] [stderr]    Compiling day20a v0.1.0 (/opt/rustwide/workdir/day20a)
[INFO] [stderr]    Compiling day19 v0.1.0 (/opt/rustwide/workdir/day19)
[INFO] [stderr]    Compiling day02b v0.1.0 (/opt/rustwide/workdir/day02b)
[INFO] [stderr]    Compiling day18b v0.1.0 (/opt/rustwide/workdir/day18b)
[INFO] [stderr]    Compiling day13a v0.1.0 (/opt/rustwide/workdir/day13a)
[INFO] [stderr]    Compiling day01b v0.1.0 (/opt/rustwide/workdir/day01b)
[INFO] [stderr]    Compiling day09 v0.1.0 (/opt/rustwide/workdir/day09)
[INFO] [stderr]    Compiling day18a v0.1.0 (/opt/rustwide/workdir/day18a)
[INFO] [stderr]    Compiling day04a v0.1.0 (/opt/rustwide/workdir/day04a)
[INFO] [stderr]    Compiling day16b v0.1.0 (/opt/rustwide/workdir/day16b)
[INFO] [stderr]    Compiling day08a v0.1.0 (/opt/rustwide/workdir/day08a)
[INFO] [stderr]    Compiling day16a v0.1.0 (/opt/rustwide/workdir/day16a)
[INFO] [stderr]    Compiling day07b v0.1.0 (/opt/rustwide/workdir/day07b)
[INFO] [stderr]    Compiling day06a v0.1.0 (/opt/rustwide/workdir/day06a)
[INFO] [stderr]    Compiling day23a v0.1.0 (/opt/rustwide/workdir/day23a)
[INFO] [stderr]    Compiling day11a v0.1.0 (/opt/rustwide/workdir/day11a)
[INFO] [stderr]    Compiling day07a v0.1.0 (/opt/rustwide/workdir/day07a)
[INFO] [stderr]    Compiling day24b v0.1.0 (/opt/rustwide/workdir/day24b)
[INFO] [stderr]    Compiling day24a v0.1.0 (/opt/rustwide/workdir/day24a)
[INFO] [stderr]    Compiling day21 v0.1.0 (/opt/rustwide/workdir/day21)
[INFO] [stderr]    Compiling day14b v0.1.0 (/opt/rustwide/workdir/day14b)
[INFO] [stderr]    Compiling day05a v0.1.0 (/opt/rustwide/workdir/day05a)
[INFO] [stdout] warning: function is never used: `print_erosion_levels`
[INFO] [stdout]   --> day22a/src/main.rs:23:4
[INFO] [stdout]    |
[INFO] [stdout] 23 | fn print_erosion_levels(erosion_levels: &Vec<Vec<usize>>) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `elf_power`
[INFO] [stdout]    --> day15b/src/main.rs:361:9
[INFO] [stdout]     |
[INFO] [stdout] 361 |     let elf_power = 4;
[INFO] [stdout]     |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_elf_power`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `disp`
[INFO] [stdout]   --> day15b/src/main.rs:50:8
[INFO] [stdout]    |
[INFO] [stdout] 50 |     fn disp(&self) -> char {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `print_grid`
[INFO] [stdout]   --> day15b/src/main.rs:62:4
[INFO] [stdout]    |
[INFO] [stdout] 62 | fn print_grid(grid: &Vec<Vec<Square>>) {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `print_units`
[INFO] [stdout]   --> day15b/src/main.rs:71:4
[INFO] [stdout]    |
[INFO] [stdout] 71 | fn print_units(grid: &Vec<Vec<Square>>) {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `max_x`
[INFO] [stdout]   --> day17/src/main.rs:83:5
[INFO] [stdout]    |
[INFO] [stdout] 83 |     max_x: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `PATTERN_SIZE`
[INFO] [stdout]   --> day12b/src/main.rs:15:1
[INFO] [stdout]    |
[INFO] [stdout] 15 | const PATTERN_SIZE: i32 = 5;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `PATTERN_CENTRE`
[INFO] [stdout]   --> day12b/src/main.rs:16:1
[INFO] [stdout]    |
[INFO] [stdout] 16 | const PATTERN_CENTRE: i32 = 2;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `GENERATIONS`
[INFO] [stdout]   --> day12b/src/main.rs:17:1
[INFO] [stdout]    |
[INFO] [stdout] 17 | const GENERATIONS: i32 = 200;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_str`
[INFO] [stdout]   --> day12b/src/main.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 |     fn from_str(str: &str) -> State {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `update`
[INFO] [stdout]   --> day12b/src/main.rs:35:8
[INFO] [stdout]    |
[INFO] [stdout] 35 |     fn update(&self, plants: &HashSet<String>) -> State {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `score`
[INFO] [stdout]   --> day12b/src/main.rs:56:8
[INFO] [stdout]    |
[INFO] [stdout] 56 |     fn score(&self) -> i32 {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `build_map`
[INFO] [stdout]   --> day12b/src/main.rs:73:4
[INFO] [stdout]    |
[INFO] [stdout] 73 | fn build_map() -> HashSet<String> {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `print_track`
[INFO] [stdout]   --> day13b/src/main.rs:74:4
[INFO] [stdout]    |
[INFO] [stdout] 74 | fn print_track(grid: &Vec<Vec<char>>) {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> day19/src/main.rs:106:80
[INFO] [stdout]     |
[INFO] [stdout] 106 |     let ip: usize = lines.next().unwrap().replace("#ip ", "").parse().unwrap();;
[INFO] [stdout]     |                                                                                ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `height`
[INFO] [stdout]   --> day18a/src/main.rs:61:9
[INFO] [stdout]    |
[INFO] [stdout] 61 |     let height = grid.len();
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_height`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `width`
[INFO] [stdout]   --> day18a/src/main.rs:62:9
[INFO] [stdout]    |
[INFO] [stdout] 62 |     let width = grid[0].len();
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_width`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `r1` is never read
[INFO] [stdout]  --> day21/src/main.rs:7:13
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let mut r1: i64 = 0;
[INFO] [stdout]   |             ^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]   = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `height`
[INFO] [stdout]   --> day18b/src/main.rs:64:9
[INFO] [stdout]    |
[INFO] [stdout] 64 |     let height = grid.len();
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_height`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `width`
[INFO] [stdout]   --> day18b/src/main.rs:65:9
[INFO] [stdout]    |
[INFO] [stdout] 65 |     let width = grid[0].len();
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_width`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `print_grid`
[INFO] [stdout]  --> day18b/src/main.rs:9:4
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn print_grid(grid: &VecDeque<Vec<char>>) {
[INFO] [stdout]   |    ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `opcode`
[INFO] [stdout]  --> day16a/src/main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     opcode: usize,
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `TestCase` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]  --> day16a/src/main.rs:4:10
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[derive(Debug)]
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout]   = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.04s
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "4760f84fcc22b15705dcbde22d567378e6adbc3429336a054ec71570fc31d3e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4760f84fcc22b15705dcbde22d567378e6adbc3429336a054ec71570fc31d3e2", kill_on_drop: false }`
[INFO] [stdout] 4760f84fcc22b15705dcbde22d567378e6adbc3429336a054ec71570fc31d3e2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-84/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c7a5c0b602fe50d103932e17e0684661462e151921031330e18952ee8ad8f64b
[INFO] running `Command { std: "docker" "start" "-a" "c7a5c0b602fe50d103932e17e0684661462e151921031330e18952ee8ad8f64b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: function is never used: `print_erosion_levels`
[INFO] [stderr]   --> day22a/src/main.rs:23:4
[INFO] [stderr]    |
[INFO] [stderr] 23 | fn print_erosion_levels(erosion_levels: &Vec<Vec<usize>>) {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `day22a` (bin "day22a" test) generated 1 warning
[INFO] [stderr] warning: function is never used: `print_track`
[INFO] [stderr]   --> day13b/src/main.rs:74:4
[INFO] [stderr]    |
[INFO] [stderr] 74 | fn print_track(grid: &Vec<Vec<char>>) {
[INFO] [stderr]    |    ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]    --> day19/src/main.rs:106:80
[INFO] [stderr]     |
[INFO] [stderr] 106 |     let ip: usize = lines.next().unwrap().replace("#ip ", "").parse().unwrap();;
[INFO] [stderr]     |                                                                                ^ help: remove this semicolon
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `opcode`
[INFO] [stderr]  --> day16a/src/main.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     opcode: usize,
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] note: `TestCase` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]  --> day16a/src/main.rs:4:10
[INFO] [stderr]   |
[INFO] [stderr] 4 | #[derive(Debug)]
[INFO] [stderr]   |          ^^^^^
[INFO] [stderr]   = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `PATTERN_SIZE`
[INFO] [stderr]   --> day12b/src/main.rs:15:1
[INFO] [stderr]    |
[INFO] [stderr] 15 | const PATTERN_SIZE: i32 = 5;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `PATTERN_CENTRE`
[INFO] [stderr]   --> day12b/src/main.rs:16:1
[INFO] [stderr]    |
[INFO] [stderr] 16 | const PATTERN_CENTRE: i32 = 2;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `GENERATIONS`
[INFO] [stderr]   --> day12b/src/main.rs:17:1
[INFO] [stderr]    |
[INFO] [stderr] 17 | const GENERATIONS: i32 = 200;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `from_str`
[INFO] [stderr]   --> day12b/src/main.rs:24:8
[INFO] [stderr]    |
[INFO] [stderr] 24 |     fn from_str(str: &str) -> State {
[INFO] [stderr]    |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `update`
[INFO] [stderr]   --> day12b/src/main.rs:35:8
[INFO] [stderr]    |
[INFO] [stderr] 35 |     fn update(&self, plants: &HashSet<String>) -> State {
[INFO] [stderr]    |        ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `score`
[INFO] [stderr]   --> day12b/src/main.rs:56:8
[INFO] [stderr]    |
[INFO] [stderr] 56 |     fn score(&self) -> i32 {
[INFO] [stderr]    |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `build_map`
[INFO] [stderr]   --> day12b/src/main.rs:73:4
[INFO] [stderr]    |
[INFO] [stderr] 73 | fn build_map() -> HashSet<String> {
[INFO] [stderr]    |    ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `height`
[INFO] [stderr]   --> day18b/src/main.rs:64:9
[INFO] [stderr]    |
[INFO] [stderr] 64 |     let height = grid.len();
[INFO] [stderr]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_height`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `width`
[INFO] [stderr]   --> day18b/src/main.rs:65:9
[INFO] [stderr]    |
[INFO] [stderr] 65 |     let width = grid[0].len();
[INFO] [stderr]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_width`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `print_grid`
[INFO] [stderr]  --> day18b/src/main.rs:9:4
[INFO] [stderr]   |
[INFO] [stderr] 9 | fn print_grid(grid: &VecDeque<Vec<char>>) {
[INFO] [stderr]   |    ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `elf_power`
[INFO] [stderr]    --> day15b/src/main.rs:361:9
[INFO] [stderr]     |
[INFO] [stderr] 361 |     let elf_power = 4;
[INFO] [stderr]     |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_elf_power`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `disp`
[INFO] [stderr]   --> day15b/src/main.rs:50:8
[INFO] [stderr]    |
[INFO] [stderr] 50 |     fn disp(&self) -> char {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `print_grid`
[INFO] [stderr]   --> day15b/src/main.rs:62:4
[INFO] [stderr]    |
[INFO] [stderr] 62 | fn print_grid(grid: &Vec<Vec<Square>>) {
[INFO] [stderr]    |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `print_units`
[INFO] [stderr]   --> day15b/src/main.rs:71:4
[INFO] [stderr]    |
[INFO] [stderr] 71 | fn print_units(grid: &Vec<Vec<Square>>) {
[INFO] [stderr]    |    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `r1` is never read
[INFO] [stderr]  --> day21/src/main.rs:7:13
[INFO] [stderr]   |
[INFO] [stderr] 7 |     let mut r1: i64 = 0;
[INFO] [stderr]   |             ^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]   = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `height`
[INFO] [stderr]   --> day18a/src/main.rs:61:9
[INFO] [stderr]    |
[INFO] [stderr] 61 |     let height = grid.len();
[INFO] [stderr]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_height`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `width`
[INFO] [stderr]   --> day18a/src/main.rs:62:9
[INFO] [stderr]    |
[INFO] [stderr] 62 |     let width = grid[0].len();
[INFO] [stderr]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_width`
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `max_x`
[INFO] [stderr]   --> day17/src/main.rs:83:5
[INFO] [stderr]    |
[INFO] [stderr] 83 |     max_x: usize,
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `day13b` (bin "day13b" test) generated 1 warning
[INFO] [stderr] warning: `day19` (bin "day19" test) generated 1 warning
[INFO] [stderr] warning: `day16a` (bin "day16a" test) generated 1 warning
[INFO] [stderr] warning: `day12b` (bin "day12b" test) generated 7 warnings
[INFO] [stderr] warning: `day18b` (bin "day18b" test) generated 3 warnings
[INFO] [stderr] warning: `day15b` (bin "day15b" test) generated 4 warnings
[INFO] [stderr] warning: `day21` (bin "day21" test) generated 1 warning
[INFO] [stderr] warning: `day18a` (bin "day18a" test) generated 2 warnings
[INFO] [stderr] warning: `day17` (bin "day17" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.38s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/day01a-6894be7c25252a9b)
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/day01b-ba9bcbf929c11893)
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/day02a-3dd46fda36459361)
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/day02b-a502322eb506201f)
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[INFO] running `Command { std: "docker" "inspect" "c7a5c0b602fe50d103932e17e0684661462e151921031330e18952ee8ad8f64b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c7a5c0b602fe50d103932e17e0684661462e151921031330e18952ee8ad8f64b", kill_on_drop: false }`
[INFO] [stdout] c7a5c0b602fe50d103932e17e0684661462e151921031330e18952ee8ad8f64b