[INFO] cloning repository https://github.com/barneyb/rust_playground
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/barneyb/rust_playground" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbarneyb%2Frust_playground", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbarneyb%2Frust_playground'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9ff637fcacf34ec7e124634a3952c852e1eadf33
[INFO] testing barneyb/rust_playground against 1.100.0-beta.1 for beta-1.100-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbarneyb%2Frust_playground" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/barneyb/rust_playground
[INFO] finished tweaking git repo https://github.com/barneyb/rust_playground
[INFO] tweaked toml for git repo https://github.com/barneyb/rust_playground written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/barneyb/rust_playground on toolchain 1.100.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/barneyb/rust_playground already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3111399a4047eeb3a02b7a90e478d715f38a8c6669b5c4b49d30a17385265909" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 1bffde98db2d8db976ae8fcde178047d2ff12b9df89511224b01f020b03288ab
[INFO] running `Command { std: "docker" "start" "1bffde98db2d8db976ae8fcde178047d2ff12b9df89511224b01f020b03288ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1bffde98db2d8db976ae8fcde178047d2ff12b9df89511224b01f020b03288ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "1bffde98db2d8db976ae8fcde178047d2ff12b9df89511224b01f020b03288ab" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1bffde98db2d8db976ae8fcde178047d2ff12b9df89511224b01f020b03288ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "1bffde98db2d8db976ae8fcde178047d2ff12b9df89511224b01f020b03288ab" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand v0.5.6
[INFO] [stderr]    Compiling rust_playground v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Dir` and `Turn`
[INFO] [stdout]  --> src/aoc_2019_15/mod.rs:3:21
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::geom2d::{Dir, Turn};
[INFO] [stdout]   |                     ^^^  ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Processor` and `Program`
[INFO] [stdout]  --> src/aoc_2019_15/mod.rs:5:22
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::intcode::{Processor, Program};
[INFO] [stdout]   |                      ^^^^^^^^^  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BW::*` and `BW`
[INFO] [stdout]  --> src/aoc_2019_15/mod.rs:6:27
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::plane::{Plane, BW, BW::*, ToChar};
[INFO] [stdout]   |                           ^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::num::<impl i32>::max_value`: replaced by the `MAX` associated constant on this type
[INFO] [stdout]   --> src/aoc_2019_03/mod.rs:26:28
[INFO] [stdout]    |
[INFO] [stdout] 26 |     let mut closest = i32::max_value();
[INFO] [stdout]    |                            ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::num::<impl i32>::max_value`: replaced by the `MAX` associated constant on this type
[INFO] [stdout]   --> src/aoc_2019_03/mod.rs:27:28
[INFO] [stdout]    |
[INFO] [stdout] 27 |     let mut fastest = i32::max_value();
[INFO] [stdout]    |                            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::num::<impl usize>::max_value`: replaced by the `MAX` associated constant on this type
[INFO] [stdout]   --> src/aoc_2019_08/mod.rs:19:23
[INFO] [stdout]    |
[INFO] [stdout] 19 |         .fold((usize::max_value(), None), |(min, prev), l| {
[INFO] [stdout]    |                       ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::num::<impl usize>::max_value`: replaced by the `MAX` associated constant on this type
[INFO] [stdout]    --> src/intcode/mod.rs:172:36
[INFO] [stdout]     |
[INFO] [stdout] 172 |             99 => self.ip = usize::max_value(),
[INFO] [stdout]     |                                    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/aoc_2019_15/mod.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |     let mut pos = Point::origin();
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `prog`
[INFO] [stdout]   --> src/aoc_2019_15/mod.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 29 |     let prog = intcode::read_from_file(filename);
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_prog`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `settings` is never read
[INFO] [stdout]   --> src/aoc_2019_07/mod.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 32 | struct OptimalPhaseSettings {
[INFO] [stdout]    |        -------------------- field in this struct
[INFO] [stdout] 33 |     settings: PhaseSettings,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `OptimalPhaseSettings` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Wall` and `Visited` are never constructed
[INFO] [stdout]   --> src/aoc_2019_15/mod.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout]  8 | enum Markers {
[INFO] [stdout]    |      ------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 11 |     Wall,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 12 |     Visited,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/aoc_2019_08/mod.rs:77:22
[INFO] [stdout]    |
[INFO] [stdout] 77 |     pub fn get_layer(&self, i: usize) -> Layer {
[INFO] [stdout]    |                      ^^^^^               ^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 77 |     pub fn get_layer(&self, i: usize) -> Layer<'_> {
[INFO] [stdout]    |                                               ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/aoc_2019_08/mod.rs:86:19
[INFO] [stdout]    |
[INFO] [stdout] 86 |     pub fn layers(&self) -> Layers {
[INFO] [stdout]    |                   ^^^^^     ^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                   |
[INFO] [stdout]    |                   the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 86 |     pub fn layers(&self) -> Layers<'_> {
[INFO] [stdout]    |                                   ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.02s
[INFO] running `Command { std: "docker" "inspect" "1bffde98db2d8db976ae8fcde178047d2ff12b9df89511224b01f020b03288ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "1bffde98db2d8db976ae8fcde178047d2ff12b9df89511224b01f020b03288ab" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_playground v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Dir` and `Turn`
[INFO] [stdout]  --> src/aoc_2019_15/mod.rs:3:21
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::geom2d::{Dir, Turn};
[INFO] [stdout]   |                     ^^^  ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Processor` and `Program`
[INFO] [stdout]  --> src/aoc_2019_15/mod.rs:5:22
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::intcode::{Processor, Program};
[INFO] [stdout]   |                      ^^^^^^^^^  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BW::*` and `BW`
[INFO] [stdout]  --> src/aoc_2019_15/mod.rs:6:27
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::plane::{Plane, BW, BW::*, ToChar};
[INFO] [stdout]   |                           ^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::num::<impl i32>::max_value`: replaced by the `MAX` associated constant on this type
[INFO] [stdout]   --> src/aoc_2019_03/mod.rs:26:28
[INFO] [stdout]    |
[INFO] [stdout] 26 |     let mut closest = i32::max_value();
[INFO] [stdout]    |                            ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::num::<impl i32>::max_value`: replaced by the `MAX` associated constant on this type
[INFO] [stdout]   --> src/aoc_2019_03/mod.rs:27:28
[INFO] [stdout]    |
[INFO] [stdout] 27 |     let mut fastest = i32::max_value();
[INFO] [stdout]    |                            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::num::<impl usize>::max_value`: replaced by the `MAX` associated constant on this type
[INFO] [stdout]   --> src/aoc_2019_08/mod.rs:19:23
[INFO] [stdout]    |
[INFO] [stdout] 19 |         .fold((usize::max_value(), None), |(min, prev), l| {
[INFO] [stdout]    |                       ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::num::<impl usize>::max_value`: replaced by the `MAX` associated constant on this type
[INFO] [stdout]    --> src/intcode/mod.rs:172:36
[INFO] [stdout]     |
[INFO] [stdout] 172 |             99 => self.ip = usize::max_value(),
[INFO] [stdout]     |                                    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/aoc_2019_15/mod.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |     let mut pos = Point::origin();
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `prog`
[INFO] [stdout]   --> src/aoc_2019_15/mod.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 29 |     let prog = intcode::read_from_file(filename);
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_prog`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `settings` is never read
[INFO] [stdout]   --> src/aoc_2019_07/mod.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 32 | struct OptimalPhaseSettings {
[INFO] [stdout]    |        -------------------- field in this struct
[INFO] [stdout] 33 |     settings: PhaseSettings,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `OptimalPhaseSettings` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Wall` and `Visited` are never constructed
[INFO] [stdout]   --> src/aoc_2019_15/mod.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout]  8 | enum Markers {
[INFO] [stdout]    |      ------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 11 |     Wall,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 12 |     Visited,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/aoc_2019_08/mod.rs:77:22
[INFO] [stdout]    |
[INFO] [stdout] 77 |     pub fn get_layer(&self, i: usize) -> Layer {
[INFO] [stdout]    |                      ^^^^^               ^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 77 |     pub fn get_layer(&self, i: usize) -> Layer<'_> {
[INFO] [stdout]    |                                               ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/aoc_2019_08/mod.rs:86:19
[INFO] [stdout]    |
[INFO] [stdout] 86 |     pub fn layers(&self) -> Layers {
[INFO] [stdout]    |                   ^^^^^     ^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                   |
[INFO] [stdout]    |                   the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 86 |     pub fn layers(&self) -> Layers<'_> {
[INFO] [stdout]    |                                   ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Dir` and `Turn`
[INFO] [stdout]  --> src/aoc_2019_15/mod.rs:3:21
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::geom2d::{Dir, Turn};
[INFO] [stdout]   |                     ^^^  ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Processor` and `Program`
[INFO] [stdout]  --> src/aoc_2019_15/mod.rs:5:22
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::intcode::{Processor, Program};
[INFO] [stdout]   |                      ^^^^^^^^^  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BW::*` and `BW`
[INFO] [stdout]  --> src/aoc_2019_15/mod.rs:6:27
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::plane::{Plane, BW, BW::*, ToChar};
[INFO] [stdout]   |                           ^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::num::<impl i32>::max_value`: replaced by the `MAX` associated constant on this type
[INFO] [stdout]   --> src/aoc_2019_03/mod.rs:26:28
[INFO] [stdout]    |
[INFO] [stdout] 26 |     let mut closest = i32::max_value();
[INFO] [stdout]    |                            ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::num::<impl i32>::max_value`: replaced by the `MAX` associated constant on this type
[INFO] [stdout]   --> src/aoc_2019_03/mod.rs:27:28
[INFO] [stdout]    |
[INFO] [stdout] 27 |     let mut fastest = i32::max_value();
[INFO] [stdout]    |                            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::num::<impl usize>::max_value`: replaced by the `MAX` associated constant on this type
[INFO] [stdout]   --> src/aoc_2019_08/mod.rs:19:23
[INFO] [stdout]    |
[INFO] [stdout] 19 |         .fold((usize::max_value(), None), |(min, prev), l| {
[INFO] [stdout]    |                       ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::num::<impl usize>::max_value`: replaced by the `MAX` associated constant on this type
[INFO] [stdout]    --> src/intcode/mod.rs:172:36
[INFO] [stdout]     |
[INFO] [stdout] 172 |             99 => self.ip = usize::max_value(),
[INFO] [stdout]     |                                    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/aoc_2019_15/mod.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |     let mut pos = Point::origin();
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `prog`
[INFO] [stdout]   --> src/aoc_2019_15/mod.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 29 |     let prog = intcode::read_from_file(filename);
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_prog`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Wall` and `Visited` are never constructed
[INFO] [stdout]   --> src/aoc_2019_15/mod.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout]  8 | enum Markers {
[INFO] [stdout]    |      ------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 11 |     Wall,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 12 |     Visited,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/aoc_2019_08/mod.rs:77:22
[INFO] [stdout]    |
[INFO] [stdout] 77 |     pub fn get_layer(&self, i: usize) -> Layer {
[INFO] [stdout]    |                      ^^^^^               ^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 77 |     pub fn get_layer(&self, i: usize) -> Layer<'_> {
[INFO] [stdout]    |                                               ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/aoc_2019_08/mod.rs:86:19
[INFO] [stdout]    |
[INFO] [stdout] 86 |     pub fn layers(&self) -> Layers {
[INFO] [stdout]    |                   ^^^^^     ^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                   |
[INFO] [stdout]    |                   the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 86 |     pub fn layers(&self) -> Layers<'_> {
[INFO] [stdout]    |                                   ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 2.06s
[INFO] running `Command { std: "docker" "inspect" "1bffde98db2d8db976ae8fcde178047d2ff12b9df89511224b01f020b03288ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "1bffde98db2d8db976ae8fcde178047d2ff12b9df89511224b01f020b03288ab" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] warning: unused imports: `Dir` and `Turn`
[INFO] [stderr]  --> src/aoc_2019_15/mod.rs:3:21
[INFO] [stderr]   |
[INFO] [stderr] 3 | use crate::geom2d::{Dir, Turn};
[INFO] [stderr]   |                     ^^^  ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Processor` and `Program`
[INFO] [stderr]  --> src/aoc_2019_15/mod.rs:5:22
[INFO] [stderr]   |
[INFO] [stderr] 5 | use crate::intcode::{Processor, Program};
[INFO] [stderr]   |                      ^^^^^^^^^  ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `BW::*` and `BW`
[INFO] [stderr]  --> src/aoc_2019_15/mod.rs:6:27
[INFO] [stderr]   |
[INFO] [stderr] 6 | use crate::plane::{Plane, BW, BW::*, ToChar};
[INFO] [stderr]   |                           ^^  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `core::num::<impl i32>::max_value`: replaced by the `MAX` associated constant on this type
[INFO] [stderr]   --> src/aoc_2019_03/mod.rs:26:28
[INFO] [stderr]    |
[INFO] [stderr] 26 |     let mut closest = i32::max_value();
[INFO] [stderr]    |                            ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `core::num::<impl i32>::max_value`: replaced by the `MAX` associated constant on this type
[INFO] [stderr]   --> src/aoc_2019_03/mod.rs:27:28
[INFO] [stderr]    |
[INFO] [stderr] 27 |     let mut fastest = i32::max_value();
[INFO] [stderr]    |                            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `core::num::<impl usize>::max_value`: replaced by the `MAX` associated constant on this type
[INFO] [stderr]   --> src/aoc_2019_08/mod.rs:19:23
[INFO] [stderr]    |
[INFO] [stderr] 19 |         .fold((usize::max_value(), None), |(min, prev), l| {
[INFO] [stderr]    |                       ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `core::num::<impl usize>::max_value`: replaced by the `MAX` associated constant on this type
[INFO] [stderr]    --> src/intcode/mod.rs:172:36
[INFO] [stderr]     |
[INFO] [stderr] 172 |             99 => self.ip = usize::max_value(),
[INFO] [stderr]     |                                    ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/aoc_2019_15/mod.rs:33:9
[INFO] [stderr]    |
[INFO] [stderr] 33 |     let mut pos = Point::origin();
[INFO] [stderr]    |         ----^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `prog`
[INFO] [stderr]   --> src/aoc_2019_15/mod.rs:29:9
[INFO] [stderr]    |
[INFO] [stderr] 29 |     let prog = intcode::read_from_file(filename);
[INFO] [stderr]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_prog`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field `settings` is never read
[INFO] [stderr]   --> src/aoc_2019_07/mod.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 32 | struct OptimalPhaseSettings {
[INFO] [stderr]    |        -------------------- field in this struct
[INFO] [stderr] 33 |     settings: PhaseSettings,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `OptimalPhaseSettings` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variants `Wall` and `Visited` are never constructed
[INFO] [stderr]   --> src/aoc_2019_15/mod.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr]  8 | enum Markers {
[INFO] [stderr]    |      ------- variants in this enum
[INFO] [stderr] ...
[INFO] [stderr] 11 |     Wall,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 12 |     Visited,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/aoc_2019_08/mod.rs:77:22
[INFO] [stderr]    |
[INFO] [stderr] 77 |     pub fn get_layer(&self, i: usize) -> Layer {
[INFO] [stderr]    |                      ^^^^^               ^^^^^ the same lifetime is hidden here
[INFO] [stderr]    |                      |
[INFO] [stderr]    |                      the lifetime is elided here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 77 |     pub fn get_layer(&self, i: usize) -> Layer<'_> {
[INFO] [stderr]    |                                               ++++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/aoc_2019_08/mod.rs:86:19
[INFO] [stderr]    |
[INFO] [stderr] 86 |     pub fn layers(&self) -> Layers {
[INFO] [stderr]    |                   ^^^^^     ^^^^^^ the same lifetime is hidden here
[INFO] [stderr]    |                   |
[INFO] [stderr]    |                   the lifetime is elided here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 86 |     pub fn layers(&self) -> Layers<'_> {
[INFO] [stderr]    |                                   ++++
[INFO] [stderr] 
[INFO] [stderr] warning: `rust_playground` (lib) generated 13 warnings (run `cargo fix --lib -p rust_playground` to apply 7 suggestions)
[INFO] [stderr] warning: variants `Wall` and `Visited` are never constructed
[INFO] [stderr]   --> src/aoc_2019_15/mod.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr]  8 | enum Markers {
[INFO] [stderr]    |      ------- variants in this enum
[INFO] [stderr] ...
[INFO] [stderr] 11 |     Wall,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 12 |     Visited,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `rust_playground` (lib test) generated 12 warnings (11 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/build/rust_playground/9c6aa5b994109b69/out/rust_playground-9c6aa5b994109b69)
[INFO] [stdout] 
[INFO] [stdout] running 39 tests
[INFO] [stdout] test aoc_2019_07::test::example_one ... ok
[INFO] [stdout] test aoc_2019_08::test::layers_size_hint ... ok
[INFO] [stdout] test aoc_2019_08::test::example_two ... ok
[INFO] [stdout] test aoc_2019_08::test::example_one ... ok
[INFO] [stdout] test aoc_2019_08::test::layers_nth ... ok
[INFO] [stdout] test aoc_2019_08::test::layers_nth_out_of_bounds ... ok
[INFO] [stdout] test aoc_2019_07::test::all_phases_iterator ... ok
[INFO] [stdout] test aoc_2019_22::test::test_inverse ... ok
[INFO] [stdout] test aoc_2019_22::test::undeal ... ok
[INFO] [stdout] test intcode::test::basic_io ... ok
[INFO] [stdout] test aoc_should_not_smoke ... ok
[INFO] [stdout] test intcode::test::compute_16_digit_number ... ok
[INFO] [stdout] test intcode::test::equals_immediate ... ok
[INFO] [stdout] test aoc_2019_07::test::example_three ... ok
[INFO] [stdout] test intcode::test::output_huge_number ... ok
[INFO] [stdout] test intcode::test::parameter_modes ... ok
[INFO] [stdout] test intcode::test::equals_position ... ok
[INFO] [stdout] test intcode::test::part_one_discussion ... ok
[INFO] [stdout] test intcode::test::part_one_example_four ... ok
[INFO] [stdout] test aoc_2019_22::test::example_one ... ok
[INFO] [stdout] test aoc_2019_22::test::reverse ... ok
[INFO] [stdout] test intcode::test::part_one_example_one ... ok
[INFO] [stdout] test aoc_2019_22::test::table ... ok
[INFO] [stdout] test intcode::test::quine ... ok
[INFO] [stdout] test aoc_2019_04::tests::triples ... ok
[INFO] [stdout] test intcode::test::part_one_example_three ... ok
[INFO] [stdout] test aoc_2019_07::test::example_two ... ok
[INFO] [stdout] test temp_convert::tests::boiling ... ok
[INFO] [stdout] test aoc_2019_01::tests::part_one_mass_cases ... ok
[INFO] [stdout] test temp_convert::tests::freezing ... ok
[INFO] [stdout] test temp_convert::tests::negative_forty ... ok
[INFO] [stdout] test aoc_2019_22::test::deal ... ok
[INFO] [stdout] test aoc_2019_22::test::cut_negative ... ok
[INFO] [stdout] test aoc_2019_22::test::cut_positive ... ok
[INFO] [stdout] test aoc_2019_01::tests::part_two_mass_cases ... ok
[INFO] [stdout] test aoc_2019_08::test::layers_next ... ok
[INFO] [stdout] test intcode::test::part_one_example_two ... ok
[INFO] [stdout] test aoc_2019_07::test::example_four ... ok
[INFO] [stdout] test aoc_2019_07::test::example_five ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 39 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.67s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/build/rust_playground/cdbc4f44dea6f3cd/out/rust_playground-cdbc4f44dea6f3cd)
[INFO] [stderr]    Doc-tests rust_playground
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "1bffde98db2d8db976ae8fcde178047d2ff12b9df89511224b01f020b03288ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1bffde98db2d8db976ae8fcde178047d2ff12b9df89511224b01f020b03288ab", kill_on_drop: false }`
[INFO] [stdout] 1bffde98db2d8db976ae8fcde178047d2ff12b9df89511224b01f020b03288ab
