[INFO] fetching crate unit4 0.1.0...
[INFO] building unit4-0.1.0 against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237-1
[INFO] extracting crate unit4 0.1.0 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate unit4 0.1.0
[INFO] finished tweaking crates.io crate unit4 0.1.0
[INFO] tweaked toml for crates.io crate unit4 0.1.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate unit4 0.1.0 on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate unit4 0.1.0 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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "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/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b7ea76c06b644d34a2abbf946db26562d37c623c8332be33005e0c1dad088875
[INFO] running `Command { std: "docker" "start" "-a" "b7ea76c06b644d34a2abbf946db26562d37c623c8332be33005e0c1dad088875", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b7ea76c06b644d34a2abbf946db26562d37c623c8332be33005e0c1dad088875", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b7ea76c06b644d34a2abbf946db26562d37c623c8332be33005e0c1dad088875", kill_on_drop: false }`
[INFO] [stdout] b7ea76c06b644d34a2abbf946db26562d37c623c8332be33005e0c1dad088875
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 78695947bf2a204952298d49d2d617c27d9cb2f6f63885a8e526c32fd9f9a23f
[INFO] running `Command { std: "docker" "start" "-a" "78695947bf2a204952298d49d2d617c27d9cb2f6f63885a8e526c32fd9f9a23f", kill_on_drop: false }`
[INFO] [stderr]    Compiling unit4 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let mut str = String::from("hello world");
[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: struct `Square` is never constructed
[INFO] [stdout]   --> src/main.rs:57:8
[INFO] [stdout]    |
[INFO] [stdout] 57 | struct Square {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `copy_ing`, `get_height`, `set_height`, and `move_to` are never used
[INFO] [stdout]    --> src/main.rs:64:8
[INFO] [stdout]     |
[INFO] [stdout]  62 | impl Square {
[INFO] [stdout]     | ----------- associated items in this implementation
[INFO] [stdout]  63 |     //关联函数，没有self型参
[INFO] [stdout]  64 |     fn new(height: u32, width: u32) -> Self {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout]  79 |     fn copy_ing(s: &Self) -> Self {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  89 |     fn get_height(&self) -> u32 {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  95 |     fn set_height(&mut self, height: u32) {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 101 |     fn move_to(self) -> Self {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Color` is never constructed
[INFO] [stdout]    --> src/main.rs:108:8
[INFO] [stdout]     |
[INFO] [stdout] 108 | struct Color(i32, i32, i32);
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.19s
[INFO] running `Command { std: "docker" "inspect" "78695947bf2a204952298d49d2d617c27d9cb2f6f63885a8e526c32fd9f9a23f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "78695947bf2a204952298d49d2d617c27d9cb2f6f63885a8e526c32fd9f9a23f", kill_on_drop: false }`
[INFO] [stdout] 78695947bf2a204952298d49d2d617c27d9cb2f6f63885a8e526c32fd9f9a23f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b8c304d126b0ff4d03b6f6047b7377a746ee272e9886d675d055131df3669d71
[INFO] running `Command { std: "docker" "start" "-a" "b8c304d126b0ff4d03b6f6047b7377a746ee272e9886d675d055131df3669d71", kill_on_drop: false }`
[INFO] [stderr]    Compiling unit4 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let mut str = String::from("hello world");
[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: struct `Square` is never constructed
[INFO] [stdout]   --> src/main.rs:57:8
[INFO] [stdout]    |
[INFO] [stdout] 57 | struct Square {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `copy_ing`, `get_height`, `set_height`, and `move_to` are never used
[INFO] [stdout]    --> src/main.rs:64:8
[INFO] [stdout]     |
[INFO] [stdout]  62 | impl Square {
[INFO] [stdout]     | ----------- associated items in this implementation
[INFO] [stdout]  63 |     //关联函数，没有self型参
[INFO] [stdout]  64 |     fn new(height: u32, width: u32) -> Self {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout]  79 |     fn copy_ing(s: &Self) -> Self {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  89 |     fn get_height(&self) -> u32 {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  95 |     fn set_height(&mut self, height: u32) {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 101 |     fn move_to(self) -> Self {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Color` is never constructed
[INFO] [stdout]    --> src/main.rs:108:8
[INFO] [stdout]     |
[INFO] [stdout] 108 | struct Color(i32, i32, i32);
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.22s
[INFO] running `Command { std: "docker" "inspect" "b8c304d126b0ff4d03b6f6047b7377a746ee272e9886d675d055131df3669d71", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8c304d126b0ff4d03b6f6047b7377a746ee272e9886d675d055131df3669d71", kill_on_drop: false }`
[INFO] [stdout] b8c304d126b0ff4d03b6f6047b7377a746ee272e9886d675d055131df3669d71
