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[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/serbanrobu/tree-calculus" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fserbanrobu%2Ftree-calculus", kill_on_drop: false }`
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[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3973dd390426ed0e08eade953804b4bca8913cd3
[INFO] building serbanrobu/tree-calculus against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fserbanrobu%2Ftree-calculus" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/serbanrobu/tree-calculus
[INFO] finished tweaking git repo https://github.com/serbanrobu/tree-calculus
[INFO] tweaked toml for git repo https://github.com/serbanrobu/tree-calculus written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/serbanrobu/tree-calculus on toolchain c7f6aa2869acdbf014d094c6e427e554e160b6db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/serbanrobu/tree-calculus 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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stdout] 6abaadeaa971e10b9d58ed87f18db5a66e0f5a0c07a5210a01d02244495189ff
[INFO] running `Command { std: "docker" "start" "-a" "6abaadeaa971e10b9d58ed87f18db5a66e0f5a0c07a5210a01d02244495189ff", kill_on_drop: false }`
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[INFO] [stderr]    Compiling tree-calculus v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `variant_index`
[INFO] [stdout]    --> src/ty.rs:124:21
[INFO] [stdout]     |
[INFO] [stdout] 124 |                 let variant_index = fork.left_branch(db);
[INFO] [stdout]     |                     ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_variant_index`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]    --> src/ty.rs:125:21
[INFO] [stdout]     |
[INFO] [stdout] 125 |                 let value = fork.right_branch(db);
[INFO] [stdout]     |                     ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `neutral_value`
[INFO] [stdout]    --> src/ty.rs:129:30
[INFO] [stdout]     |
[INFO] [stdout] 129 |             Self::Reflection(neutral_value) => {
[INFO] [stdout]     |                              ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_neutral_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Role` is never used
[INFO] [stdout]    --> src/tree/mod.rs:184:6
[INFO] [stdout]     |
[INFO] [stdout] 184 | enum Role {
[INFO] [stdout]     |      ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `User` is never constructed
[INFO] [stdout]    --> src/tree/mod.rs:191:8
[INFO] [stdout]     |
[INFO] [stdout] 191 | struct User {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 40.29s
[INFO] running `Command { std: "docker" "inspect" "6abaadeaa971e10b9d58ed87f18db5a66e0f5a0c07a5210a01d02244495189ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6abaadeaa971e10b9d58ed87f18db5a66e0f5a0c07a5210a01d02244495189ff", kill_on_drop: false }`
[INFO] [stdout] 6abaadeaa971e10b9d58ed87f18db5a66e0f5a0c07a5210a01d02244495189ff
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8c49922335598c11a60668419c8face04fc7eab8679709175e2fc3217fde966b
[INFO] running `Command { std: "docker" "start" "-a" "8c49922335598c11a60668419c8face04fc7eab8679709175e2fc3217fde966b", kill_on_drop: false }`
[INFO] [stderr]    Compiling tree-calculus v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `variant_index`
[INFO] [stdout]    --> src/ty.rs:124:21
[INFO] [stdout]     |
[INFO] [stdout] 124 |                 let variant_index = fork.left_branch(db);
[INFO] [stdout]     |                     ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_variant_index`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]    --> src/ty.rs:125:21
[INFO] [stdout]     |
[INFO] [stdout] 125 |                 let value = fork.right_branch(db);
[INFO] [stdout]     |                     ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `neutral_value`
[INFO] [stdout]    --> src/ty.rs:129:30
[INFO] [stdout]     |
[INFO] [stdout] 129 |             Self::Reflection(neutral_value) => {
[INFO] [stdout]     |                              ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_neutral_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Role` is never used
[INFO] [stdout]    --> src/tree/mod.rs:184:6
[INFO] [stdout]     |
[INFO] [stdout] 184 | enum Role {
[INFO] [stdout]     |      ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `User` is never constructed
[INFO] [stdout]    --> src/tree/mod.rs:191:8
[INFO] [stdout]     |
[INFO] [stdout] 191 | struct User {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `variant_index`
[INFO] [stdout]    --> src/ty.rs:124:21
[INFO] [stdout]     |
[INFO] [stdout] 124 |                 let variant_index = fork.left_branch(db);
[INFO] [stdout]     |                     ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_variant_index`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]    --> src/ty.rs:125:21
[INFO] [stdout]     |
[INFO] [stdout] 125 |                 let value = fork.right_branch(db);
[INFO] [stdout]     |                     ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `neutral_value`
[INFO] [stdout]    --> src/ty.rs:129:30
[INFO] [stdout]     |
[INFO] [stdout] 129 |             Self::Reflection(neutral_value) => {
[INFO] [stdout]     |                              ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_neutral_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 2.11s
[INFO] running `Command { std: "docker" "inspect" "8c49922335598c11a60668419c8face04fc7eab8679709175e2fc3217fde966b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c49922335598c11a60668419c8face04fc7eab8679709175e2fc3217fde966b", kill_on_drop: false }`
[INFO] [stdout] 8c49922335598c11a60668419c8face04fc7eab8679709175e2fc3217fde966b
