[INFO] cloning repository https://github.com/JanMaier97/music-trainer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/JanMaier97/music-trainer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJanMaier97%2Fmusic-trainer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJanMaier97%2Fmusic-trainer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b08fc9cc544ed651efd6a2a4d841120dca875789
[INFO] building JanMaier97/music-trainer against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJanMaier97%2Fmusic-trainer" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/JanMaier97/music-trainer on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/JanMaier97/music-trainer
[INFO] finished tweaking git repo https://github.com/JanMaier97/music-trainer
[INFO] tweaked toml for git repo https://github.com/JanMaier97/music-trainer written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/JanMaier97/music-trainer 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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 134aa7c6dfe81cf057fa817935be712d1ee6e636b189da94aac6c7d2e7c78ac5
[INFO] running `Command { std: "docker" "start" "-a" "134aa7c6dfe81cf057fa817935be712d1ee6e636b189da94aac6c7d2e7c78ac5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "134aa7c6dfe81cf057fa817935be712d1ee6e636b189da94aac6c7d2e7c78ac5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "134aa7c6dfe81cf057fa817935be712d1ee6e636b189da94aac6c7d2e7c78ac5", kill_on_drop: false }`
[INFO] [stdout] 134aa7c6dfe81cf057fa817935be712d1ee6e636b189da94aac6c7d2e7c78ac5
[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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 059bdd92d11f99f10da0c5399ce89c109e6fdbba4a9530d19eadc9a5d79b04e1
[INFO] running `Command { std: "docker" "start" "-a" "059bdd92d11f99f10da0c5399ce89c109e6fdbba4a9530d19eadc9a5d79b04e1", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.146
[INFO] [stderr]    Compiling getrandom v0.2.10
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling music-trainer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `uniform`
[INFO] [stdout]  --> src/main.rs:3:40
[INFO] [stdout]   |
[INFO] [stdout] 3 | use rand::{thread_rng, distributions::{uniform, Uniform}, Rng};
[INFO] [stdout]   |                                        ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fiths`
[INFO] [stdout]  --> src/main.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let fiths = HashMap::from([
[INFO] [stdout]   |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_fiths`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `thirds`
[INFO] [stdout]   --> src/main.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let thirds = HashMap::from([
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_thirds`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `thirds_level_1`
[INFO] [stdout]   --> src/main.rs:37:9
[INFO] [stdout]    |
[INFO] [stdout] 37 |     let thirds_level_1 = ["C", "D", "E", "F", "G", "A", "H"];
[INFO] [stdout]    |         ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_thirds_level_1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fiths_level_1`
[INFO] [stdout]   --> src/main.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 38 |     let fiths_level_1 = ["C", "D", "E", "F", "G", "A", "H"];
[INFO] [stdout]    |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_fiths_level_1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.37s
[INFO] running `Command { std: "docker" "inspect" "059bdd92d11f99f10da0c5399ce89c109e6fdbba4a9530d19eadc9a5d79b04e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "059bdd92d11f99f10da0c5399ce89c109e6fdbba4a9530d19eadc9a5d79b04e1", kill_on_drop: false }`
[INFO] [stdout] 059bdd92d11f99f10da0c5399ce89c109e6fdbba4a9530d19eadc9a5d79b04e1
[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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2293cfd5b2aaa8462c2ea594283046713d26fddd677fb8514ebc705fe53ce6d5
[INFO] running `Command { std: "docker" "start" "-a" "2293cfd5b2aaa8462c2ea594283046713d26fddd677fb8514ebc705fe53ce6d5", kill_on_drop: false }`
[INFO] [stderr]    Compiling music-trainer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `uniform`
[INFO] [stdout]  --> src/main.rs:3:40
[INFO] [stdout]   |
[INFO] [stdout] 3 | use rand::{thread_rng, distributions::{uniform, Uniform}, Rng};
[INFO] [stdout]   |                                        ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fiths`
[INFO] [stdout]  --> src/main.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let fiths = HashMap::from([
[INFO] [stdout]   |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_fiths`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `thirds`
[INFO] [stdout]   --> src/main.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let thirds = HashMap::from([
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_thirds`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `thirds_level_1`
[INFO] [stdout]   --> src/main.rs:37:9
[INFO] [stdout]    |
[INFO] [stdout] 37 |     let thirds_level_1 = ["C", "D", "E", "F", "G", "A", "H"];
[INFO] [stdout]    |         ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_thirds_level_1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fiths_level_1`
[INFO] [stdout]   --> src/main.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 38 |     let fiths_level_1 = ["C", "D", "E", "F", "G", "A", "H"];
[INFO] [stdout]    |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_fiths_level_1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] running `Command { std: "docker" "inspect" "2293cfd5b2aaa8462c2ea594283046713d26fddd677fb8514ebc705fe53ce6d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2293cfd5b2aaa8462c2ea594283046713d26fddd677fb8514ebc705fe53ce6d5", kill_on_drop: false }`
[INFO] [stdout] 2293cfd5b2aaa8462c2ea594283046713d26fddd677fb8514ebc705fe53ce6d5