[INFO] cloning repository https://github.com/i-h-bar/dice
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/i-h-bar/dice" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fi-h-bar%2Fdice", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fi-h-bar%2Fdice'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7da3807cce74c30e22abbc8be29d2fe0136b252a
[INFO] checking i-h-bar/dice against 846e51f66b1e7b49ba9e3988c58ccfe5817ce0a9 for pr-164812
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fi-h-bar%2Fdice" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/i-h-bar/dice
[INFO] finished tweaking git repo https://github.com/i-h-bar/dice
[INFO] tweaked toml for git repo https://github.com/i-h-bar/dice written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/i-h-bar/dice on toolchain 846e51f66b1e7b49ba9e3988c58ccfe5817ce0a9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+846e51f66b1e7b49ba9e3988c58ccfe5817ce0a9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/i-h-bar/dice 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" "+846e51f66b1e7b49ba9e3988c58ccfe5817ce0a9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rand_chacha v0.9.0-alpha.1
[INFO] [stderr]   Downloaded proc-macro2 v1.0.79
[INFO] [stderr]   Downloaded zerocopy-derive v0.8.0-alpha.6
[INFO] [stderr]   Downloaded rand_core v0.9.0-alpha.1
[INFO] [stderr]   Downloaded rand v0.9.0-alpha.1
[INFO] [stderr]   Downloaded syn v2.0.57
[INFO] [stderr]   Downloaded zerocopy v0.8.0-alpha.6
[INFO] [stderr]   Downloaded libc v0.2.153
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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:c0af3998e971868164375a7dfb646c9933ddd1a3bdb00fa2041266763dc1eeab" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 96ccad2673a482574dd198e4dfa84f3a62d09b281b879d32bc2a5d1baf630fec
[INFO] running `Command { std: "docker" "start" "96ccad2673a482574dd198e4dfa84f3a62d09b281b879d32bc2a5d1baf630fec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "96ccad2673a482574dd198e4dfa84f3a62d09b281b879d32bc2a5d1baf630fec", 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" "96ccad2673a482574dd198e4dfa84f3a62d09b281b879d32bc2a5d1baf630fec" "/opt/rustwide/cargo-home/bin/cargo" "+846e51f66b1e7b49ba9e3988c58ccfe5817ce0a9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "96ccad2673a482574dd198e4dfa84f3a62d09b281b879d32bc2a5d1baf630fec", 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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-w" "/opt/rustwide/workdir" "--user" "0:0" "96ccad2673a482574dd198e4dfa84f3a62d09b281b879d32bc2a5d1baf630fec" "/opt/rustwide/cargo-home/bin/cargo" "+846e51f66b1e7b49ba9e3988c58ccfe5817ce0a9" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling zerocopy v0.8.0-alpha.6
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]     Checking rand_core v0.9.0-alpha.1
[INFO] [stderr]     Checking rand_chacha v0.9.0-alpha.1
[INFO] [stderr]     Checking rand v0.9.0-alpha.1
[INFO] [stderr]     Checking dice v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `format`
[INFO] [stdout]  --> src/lib.rs:2:16
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::fmt::{format, Debug, Display, Formatter};
[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 import: `format`
[INFO] [stdout]  --> src/lib.rs:2:16
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::fmt::{format, Debug, Display, Formatter};
[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 variable: `dice`
[INFO] [stdout]    --> src/lib.rs:247:13
[INFO] [stdout]     |
[INFO] [stdout] 247 |         let dice = Dice::from("4000d4000").unwrap();
[INFO] [stdout]     |             ^^^^ help: if this is intentional, prefix it with an underscore: `_dice`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `BOOST` is never used
[INFO] [stdout]  --> src/lib.rs:6:7
[INFO] [stdout]   |
[INFO] [stdout] 6 | const BOOST: [&str; 6] = ["▢", "▢", "✶", "✶℧", "℧℧", "℧"];
[INFO] [stdout]   |       ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SETBACK` is never used
[INFO] [stdout]  --> src/lib.rs:7:7
[INFO] [stdout]   |
[INFO] [stdout] 7 | const SETBACK: [&str; 6] = ["▢", "▢", "▼", "▼", "⎔", "⎔"];
[INFO] [stdout]   |       ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `DIFFICULTY` is never used
[INFO] [stdout]  --> src/lib.rs:8:7
[INFO] [stdout]   |
[INFO] [stdout] 8 | const DIFFICULTY: [&str; 8] = ["▢", "▼", "▼▼", "⎔", "⎔", "⎔", "⎔⎔", "▼⎔"];
[INFO] [stdout]   |       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `PROFICIENCY` is never used
[INFO] [stdout]  --> src/lib.rs:9:7
[INFO] [stdout]   |
[INFO] [stdout] 9 | const PROFICIENCY: [&str; 12] = [
[INFO] [stdout]   |       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `CHALLENGE` is never used
[INFO] [stdout]   --> src/lib.rs:12:7
[INFO] [stdout]    |
[INFO] [stdout] 12 | const CHALLENGE: [&str; 12] = [
[INFO] [stdout]    |       ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `FORCE` is never used
[INFO] [stdout]   --> src/lib.rs:15:7
[INFO] [stdout]    |
[INFO] [stdout] 15 | const FORCE: [&str; 12] = [
[INFO] [stdout]    |       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `U8_MAX` is never used
[INFO] [stdout]   --> src/lib.rs:19:7
[INFO] [stdout]    |
[INFO] [stdout] 19 | const U8_MAX: u16 = u8::MAX as u16;
[INFO] [stdout]    |       ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DiceTooLargeError` is never constructed
[INFO] [stdout]   --> src/lib.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | struct DiceTooLargeError<'a> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DiceParseError` is never constructed
[INFO] [stdout]   --> src/lib.rs:51:8
[INFO] [stdout]    |
[INFO] [stdout] 51 | struct DiceParseError<'a> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Dice` is never constructed
[INFO] [stdout]   --> src/lib.rs:81:8
[INFO] [stdout]    |
[INFO] [stdout] 81 | struct Dice {}
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `from` is never used
[INFO] [stdout]   --> src/lib.rs:84:8
[INFO] [stdout]    |
[INFO] [stdout] 83 | impl<'a> Dice {
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] 84 |     fn from(dice: &'a str) -> Result<Box<dyn Rollable + 'a>, Box<dyn Error + 'a>> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Rollable` is never used
[INFO] [stdout]    --> src/lib.rs:110:7
[INFO] [stdout]     |
[INFO] [stdout] 110 | trait Rollable {
[INFO] [stdout]     |       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Boost` is never constructed
[INFO] [stdout]    --> src/lib.rs:114:8
[INFO] [stdout]     |
[INFO] [stdout] 114 | struct Boost {}
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Setback` is never constructed
[INFO] [stdout]    --> src/lib.rs:122:8
[INFO] [stdout]     |
[INFO] [stdout] 122 | struct Setback {}
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Difficulty` is never constructed
[INFO] [stdout]    --> src/lib.rs:130:8
[INFO] [stdout]     |
[INFO] [stdout] 130 | struct Difficulty {}
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Challenge` is never constructed
[INFO] [stdout]    --> src/lib.rs:138:8
[INFO] [stdout]     |
[INFO] [stdout] 138 | struct Challenge {}
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Proficiency` is never constructed
[INFO] [stdout]    --> src/lib.rs:146:8
[INFO] [stdout]     |
[INFO] [stdout] 146 | struct Proficiency {}
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Force` is never constructed
[INFO] [stdout]    --> src/lib.rs:154:8
[INFO] [stdout]     |
[INFO] [stdout] 154 | struct Force {}
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DN` is never constructed
[INFO] [stdout]    --> src/lib.rs:162:8
[INFO] [stdout]     |
[INFO] [stdout] 162 | struct DN {
[INFO] [stdout]     |        ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.93s
[INFO] running `Command { std: "docker" "inspect" "96ccad2673a482574dd198e4dfa84f3a62d09b281b879d32bc2a5d1baf630fec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "96ccad2673a482574dd198e4dfa84f3a62d09b281b879d32bc2a5d1baf630fec", kill_on_drop: false }`
[INFO] [stdout] 96ccad2673a482574dd198e4dfa84f3a62d09b281b879d32bc2a5d1baf630fec
