[INFO] fetching crate coronavirus 0.1.2...
[INFO] testing coronavirus-0.1.2 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate coronavirus 0.1.2 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate coronavirus 0.1.2
[INFO] finished tweaking crates.io crate coronavirus 0.1.2
[INFO] tweaked toml for crates.io crate coronavirus 0.1.2 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate coronavirus 0.1.2 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 37 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ec1d8ab1189f339ea57a5486e752e27d598b49b824d6257481dab66d31585f2e
[INFO] running `Command { std: "docker" "start" "-a" "ec1d8ab1189f339ea57a5486e752e27d598b49b824d6257481dab66d31585f2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ec1d8ab1189f339ea57a5486e752e27d598b49b824d6257481dab66d31585f2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec1d8ab1189f339ea57a5486e752e27d598b49b824d6257481dab66d31585f2e", kill_on_drop: false }`
[INFO] [stdout] ec1d8ab1189f339ea57a5486e752e27d598b49b824d6257481dab66d31585f2e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0d6d6f1a00668c2bb0f19b6c8c002da4ef9dab18b21ff5ac4945a94a145af4eb
[INFO] running `Command { std: "docker" "start" "-a" "0d6d6f1a00668c2bb0f19b6c8c002da4ef9dab18b21ff5ac4945a94a145af4eb", kill_on_drop: false }`
[INFO] [stderr]    Compiling openssl-sys v0.9.109
[INFO] [stderr]    Compiling libz-sys v1.1.22
[INFO] [stderr]    Compiling memchr v2.7.6
[INFO] [stderr]    Compiling openssl-probe v0.1.6
[INFO] [stderr]    Compiling socket2 v0.6.0
[INFO] [stderr]    Compiling curl-sys v0.4.83+curl-8.15.0
[INFO] [stderr]    Compiling curl v0.4.49
[INFO] [stderr]    Compiling csv-core v0.1.12
[INFO] [stderr]    Compiling csv v1.3.1
[INFO] [stderr]    Compiling coronavirus v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:13:6
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let mut vec: Arc<Mutex<Vec<u8>>> = Arc::new(Mutex::new(Vec::new()));
[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/main.rs:14:6
[INFO] [stdout]    |
[INFO] [stdout] 14 |     let mut c_vec = vec.clone();
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.33s
[INFO] running `Command { std: "docker" "inspect" "0d6d6f1a00668c2bb0f19b6c8c002da4ef9dab18b21ff5ac4945a94a145af4eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d6d6f1a00668c2bb0f19b6c8c002da4ef9dab18b21ff5ac4945a94a145af4eb", kill_on_drop: false }`
[INFO] [stdout] 0d6d6f1a00668c2bb0f19b6c8c002da4ef9dab18b21ff5ac4945a94a145af4eb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3afb693564489bcb520a236d58e9cab348c822271bd2ac6eafb543f21c73601a
[INFO] running `Command { std: "docker" "start" "-a" "3afb693564489bcb520a236d58e9cab348c822271bd2ac6eafb543f21c73601a", kill_on_drop: false }`
[INFO] [stderr]    Compiling coronavirus v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:13:6
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let mut vec: Arc<Mutex<Vec<u8>>> = Arc::new(Mutex::new(Vec::new()));
[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/main.rs:14:6
[INFO] [stdout]    |
[INFO] [stdout] 14 |     let mut c_vec = vec.clone();
[INFO] [stdout]    |         ----^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.58s
[INFO] running `Command { std: "docker" "inspect" "3afb693564489bcb520a236d58e9cab348c822271bd2ac6eafb543f21c73601a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3afb693564489bcb520a236d58e9cab348c822271bd2ac6eafb543f21c73601a", kill_on_drop: false }`
[INFO] [stdout] 3afb693564489bcb520a236d58e9cab348c822271bd2ac6eafb543f21c73601a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+beta-2025-09-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 451807612e880a60f2c9cac7b57fc6856f92d46b7fed77c521666a30bfa85ce9
[INFO] running `Command { std: "docker" "start" "-a" "451807612e880a60f2c9cac7b57fc6856f92d46b7fed77c521666a30bfa85ce9", kill_on_drop: false }`
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stdout] 
[INFO] [stderr]   --> src/main.rs:13:6
[INFO] [stdout] running 0 tests
[INFO] [stderr]    |
[INFO] [stdout] 
[INFO] [stderr] 13 |     let mut vec: Arc<Mutex<Vec<u8>>> = Arc::new(Mutex::new(Vec::new()));
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]    |         ----^^^
[INFO] [stdout] 
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:14:6
[INFO] [stderr]    |
[INFO] [stderr] 14 |     let mut c_vec = vec.clone();
[INFO] [stderr]    |         ----^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: `coronavirus` (bin "coronavirus" test) generated 2 warnings (run `cargo fix --bin "coronavirus" --tests` to apply 2 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/coronavirus-ca8dfff8376d3b45)
[INFO] running `Command { std: "docker" "inspect" "451807612e880a60f2c9cac7b57fc6856f92d46b7fed77c521666a30bfa85ce9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "451807612e880a60f2c9cac7b57fc6856f92d46b7fed77c521666a30bfa85ce9", kill_on_drop: false }`
[INFO] [stdout] 451807612e880a60f2c9cac7b57fc6856f92d46b7fed77c521666a30bfa85ce9
