[INFO] cloning repository https://github.com/leonlai257/rust-test
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/leonlai257/rust-test" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fleonlai257%2Frust-test", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fleonlai257%2Frust-test'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 84ce962ed634149036e621aaeb3e870eb193ef52
[INFO] checking leonlai257/rust-test against 1.95.0 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fleonlai257%2Frust-test" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/leonlai257/rust-test
[INFO] finished tweaking git repo https://github.com/leonlai257/rust-test
[INFO] tweaked toml for git repo https://github.com/leonlai257/rust-test written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/leonlai257/rust-test on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/leonlai257/rust-test 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" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded fontdue v0.7.2
[INFO] [stderr]   Downloaded glam v0.21.3
[INFO] [stderr]   Downloaded miniquad v0.3.14
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[INFO] [stderr]   Downloaded quad-snd v0.2.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7ffb974d44a78d79cf83b507eb0d558cf8aef3081f1a7f33464e76e0dfd3bb8f
[INFO] running `Command { std: "docker" "start" "-a" "7ffb974d44a78d79cf83b507eb0d558cf8aef3081f1a7f33464e76e0dfd3bb8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7ffb974d44a78d79cf83b507eb0d558cf8aef3081f1a7f33464e76e0dfd3bb8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ffb974d44a78d79cf83b507eb0d558cf8aef3081f1a7f33464e76e0dfd3bb8f", kill_on_drop: false }`
[INFO] [stdout] 7ffb974d44a78d79cf83b507eb0d558cf8aef3081f1a7f33464e76e0dfd3bb8f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2e1c57e4bf3c26496c8537c40ec1d237c3a6ef6481b563f4104cb719e60163d2
[INFO] running `Command { std: "docker" "start" "-a" "2e1c57e4bf3c26496c8537c40ec1d237c3a6ef6481b563f4104cb719e60163d2", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling num-traits v0.2.15
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[INFO] [stderr]     Checking dasp_frame v0.11.0
[INFO] [stderr]     Checking smallvec v0.6.14
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[INFO] [stderr]     Checking rust-test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/bin/mahjong.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let mut result = tiles::get_tiles();
[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: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/tiles/mod.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let mut result = MahjongTile {
[INFO] [stdout]    |         ----^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `result`
[INFO] [stdout]  --> src/bin/mahjong.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let mut result = tiles::get_tiles();
[INFO] [stdout]   |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_result`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Dot`, `Million`, `Character`, `Flower`, and `Season` are never constructed
[INFO] [stdout]  --> src/bin/tiles/mod.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | enum MahjongKey {
[INFO] [stdout]   |      ---------- variants in this enum
[INFO] [stdout] 2 |     Bamboo,
[INFO] [stdout] 3 |     Dot,
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 4 |     Million,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 5 |     Character,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 6 |     Flower,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout] 7 |     Season,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `key` and `number` are never read
[INFO] [stdout]   --> src/bin/tiles/mod.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct MahjongTile {
[INFO] [stdout]    |            ----------- fields in this struct
[INFO] [stdout] 11 |     key: MahjongKey,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 12 |     number: u8,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/bin/mahjong.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let mut result = tiles::get_tiles();
[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: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/tiles/mod.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let mut result = MahjongTile {
[INFO] [stdout]    |         ----^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `result`
[INFO] [stdout]  --> src/bin/mahjong.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let mut result = tiles::get_tiles();
[INFO] [stdout]   |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_result`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Dot`, `Million`, `Character`, `Flower`, and `Season` are never constructed
[INFO] [stdout]  --> src/bin/tiles/mod.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | enum MahjongKey {
[INFO] [stdout]   |      ---------- variants in this enum
[INFO] [stdout] 2 |     Bamboo,
[INFO] [stdout] 3 |     Dot,
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 4 |     Million,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 5 |     Character,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 6 |     Flower,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout] 7 |     Season,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `key` and `number` are never read
[INFO] [stdout]   --> src/bin/tiles/mod.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct MahjongTile {
[INFO] [stdout]    |            ----------- fields in this struct
[INFO] [stdout] 11 |     key: MahjongKey,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 12 |     number: u8,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.84s
[INFO] running `Command { std: "docker" "inspect" "2e1c57e4bf3c26496c8537c40ec1d237c3a6ef6481b563f4104cb719e60163d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e1c57e4bf3c26496c8537c40ec1d237c3a6ef6481b563f4104cb719e60163d2", kill_on_drop: false }`
[INFO] [stdout] 2e1c57e4bf3c26496c8537c40ec1d237c3a6ef6481b563f4104cb719e60163d2
