[INFO] cloning repository https://github.com/Jandhi/chronos3
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Jandhi/chronos3" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJandhi%2Fchronos3", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJandhi%2Fchronos3'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 935f1cdd18d63b015ae3ec489a6cbde876ce0b4f
[INFO] checking Jandhi/chronos3/935f1cdd18d63b015ae3ec489a6cbde876ce0b4f against master#f2c70877a7dbc51cd98e2d5d25209b24d4a586d5 for pr-150097
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJandhi%2Fchronos3" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Jandhi/chronos3
[INFO] finished tweaking git repo https://github.com/Jandhi/chronos3
[INFO] tweaked toml for git repo https://github.com/Jandhi/chronos3 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Jandhi/chronos3 on toolchain f2c70877a7dbc51cd98e2d5d25209b24d4a586d5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f2c70877a7dbc51cd98e2d5d25209b24d4a586d5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Jandhi/chronos3 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" "+f2c70877a7dbc51cd98e2d5d25209b24d4a586d5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+f2c70877a7dbc51cd98e2d5d25209b24d4a586d5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ec662f46a5202fb59532f3e658d91d570b9beb8157366e83d483841bf303e769
[INFO] running `Command { std: "docker" "start" "-a" "ec662f46a5202fb59532f3e658d91d570b9beb8157366e83d483841bf303e769", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ec662f46a5202fb59532f3e658d91d570b9beb8157366e83d483841bf303e769", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec662f46a5202fb59532f3e658d91d570b9beb8157366e83d483841bf303e769", kill_on_drop: false }`
[INFO] [stdout] ec662f46a5202fb59532f3e658d91d570b9beb8157366e83d483841bf303e769
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+f2c70877a7dbc51cd98e2d5d25209b24d4a586d5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 84c379ca08ecfba9c05945664954382fb7a11d22ceef4b841800fab1f62aa49a
[INFO] running `Command { std: "docker" "start" "-a" "84c379ca08ecfba9c05945664954382fb7a11d22ceef4b841800fab1f62aa49a", kill_on_drop: false }`
[INFO] [stderr]     Checking chronos3 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `matcher::Matchable` and `symbol::Symbol`
[INFO] [stdout]  --> src/chronology/sound_change.rs:1:24
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::phonology::{matcher::Matchable, symbol::Symbol};
[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: `self` and `self`
[INFO] [stdout]  --> src/chronology/sound_change.rs:3:23
[INFO] [stdout]   |
[INFO] [stdout] 3 | use super::{context::{self, Context}, target::Target, transformation::{self, Transformation}};
[INFO] [stdout]   |                       ^^^^                                             ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `io::Read`
[INFO] [stdout]  --> src/chronology/builder.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{io::Read, marker::PhantomData};
[INFO] [stdout]   |           ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::target::Target`
[INFO] [stdout]  --> src/chronology/context.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::target::Target;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `category::Category`
[INFO] [stdout]  --> src/phonology/matcher.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::{category::Category, phone::Phone};
[INFO] [stdout]   |             ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `target`, `transformation`, and `context` are never read
[INFO] [stdout]  --> src/chronology/sound_change.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct SoundChange {
[INFO] [stdout]   |            ----------- fields in this struct
[INFO] [stdout] 6 |     target : Target,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout] 7 |     transformation : Transformation,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 8 |     context : Context,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test` is never used
[INFO] [stdout]   --> src/phonology/consonant/builder.rs:14:4
[INFO] [stdout]    |
[INFO] [stdout] 14 | fn test() {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test` is never used
[INFO] [stdout]   --> src/phonology/vowel/builder.rs:14:4
[INFO] [stdout]    |
[INFO] [stdout] 14 | fn test() {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `matcher::Matchable` and `symbol::Symbol`
[INFO] [stdout]  --> src/chronology/sound_change.rs:1:24
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::phonology::{matcher::Matchable, symbol::Symbol};
[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: `self` and `self`
[INFO] [stdout]  --> src/chronology/sound_change.rs:3:23
[INFO] [stdout]   |
[INFO] [stdout] 3 | use super::{context::{self, Context}, target::Target, transformation::{self, Transformation}};
[INFO] [stdout]   |                       ^^^^                                             ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `io::Read`
[INFO] [stdout]  --> src/chronology/builder.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{io::Read, marker::PhantomData};
[INFO] [stdout]   |           ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::target::Target`
[INFO] [stdout]  --> src/chronology/context.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::target::Target;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `category::Category`
[INFO] [stdout]  --> src/phonology/matcher.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::{category::Category, phone::Phone};
[INFO] [stdout]   |             ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `vowel`
[INFO] [stdout]  --> src/phonology/vowel/builder_test.rs:7:13
[INFO] [stdout]   |
[INFO] [stdout] 7 |         let vowel : Vowel = V!();
[INFO] [stdout]   |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_vowel`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `target`, `transformation`, and `context` are never read
[INFO] [stdout]  --> src/chronology/sound_change.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct SoundChange {
[INFO] [stdout]   |            ----------- fields in this struct
[INFO] [stdout] 6 |     target : Target,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout] 7 |     transformation : Transformation,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 8 |     context : Context,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test` is never used
[INFO] [stdout]   --> src/phonology/consonant/builder.rs:14:4
[INFO] [stdout]    |
[INFO] [stdout] 14 | fn test() {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test` is never used
[INFO] [stdout]   --> src/phonology/vowel/builder.rs:14:4
[INFO] [stdout]    |
[INFO] [stdout] 14 | fn test() {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.30s
[INFO] running `Command { std: "docker" "inspect" "84c379ca08ecfba9c05945664954382fb7a11d22ceef4b841800fab1f62aa49a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84c379ca08ecfba9c05945664954382fb7a11d22ceef4b841800fab1f62aa49a", kill_on_drop: false }`
[INFO] [stdout] 84c379ca08ecfba9c05945664954382fb7a11d22ceef4b841800fab1f62aa49a