[INFO] cloning repository https://github.com/shan-by/rustexamples
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/shan-by/rustexamples" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshan-by%2Frustexamples", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshan-by%2Frustexamples'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bf616338543a9c3dc1c1138a68c0a39c12d9e657
[INFO] testing shan-by/rustexamples against beta-2026-04-21 for beta-1.96-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshan-by%2Frustexamples" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/shan-by/rustexamples
[INFO] finished tweaking git repo https://github.com/shan-by/rustexamples
[INFO] tweaked toml for git repo https://github.com/shan-by/rustexamples written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/shan-by/rustexamples on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/shan-by/rustexamples 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" "+beta-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] testing shan-by/rustexamples against beta-2026-04-21 for beta-1.96-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshan-by%2Frustexamples" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/shan-by/rustexamples
[INFO] finished tweaking git repo https://github.com/shan-by/rustexamples
[INFO] tweaked toml for git repo https://github.com/shan-by/rustexamples written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/shan-by/rustexamples on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/shan-by/rustexamples 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" "+beta-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4328b7f0366d58749d41253defb87c77d3fc5ec19681e2180def77147358fed4
[INFO] running `Command { std: "docker" "start" "-a" "4328b7f0366d58749d41253defb87c77d3fc5ec19681e2180def77147358fed4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4328b7f0366d58749d41253defb87c77d3fc5ec19681e2180def77147358fed4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4328b7f0366d58749d41253defb87c77d3fc5ec19681e2180def77147358fed4", kill_on_drop: false }`
[INFO] [stdout] 4328b7f0366d58749d41253defb87c77d3fc5ec19681e2180def77147358fed4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1efad2508e48ca3986063f85fb72ae96b2c20dc80e1bac515572cfb29bf1410f
[INFO] running `Command { std: "docker" "start" "-a" "1efad2508e48ca3986063f85fb72ae96b2c20dc80e1bac515572cfb29bf1410f", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustexamples v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: named argument `rgb1` is not used by name
[INFO] [stdout]   --> src/main.rs:60:20
[INFO] [stdout]    |
[INFO] [stdout] 60 |     println!("{}", rgb1=RGB(128, 255, 90));
[INFO] [stdout]    |               --   ^^^^ this named argument is referred to by position in formatting string
[INFO] [stdout]    |               |
[INFO] [stdout]    |               this formatting argument uses named argument `rgb1` by position
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(named_arguments_used_positionally)]` on by default
[INFO] [stdout] help: use the named argument by name to avoid ambiguity
[INFO] [stdout]    |
[INFO] [stdout] 60 |     println!("{rgb1}", rgb1=RGB(128, 255, 90));
[INFO] [stdout]    |                ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: named argument `rgb1` is not used by name
[INFO] [stdout]   --> src/main.rs:61:20
[INFO] [stdout]    |
[INFO] [stdout] 61 |     println!("{}", rgb1=RGB(0, 3, 254));
[INFO] [stdout]    |               --   ^^^^ this named argument is referred to by position in formatting string
[INFO] [stdout]    |               |
[INFO] [stdout]    |               this formatting argument uses named argument `rgb1` by position
[INFO] [stdout]    |
[INFO] [stdout] help: use the named argument by name to avoid ambiguity
[INFO] [stdout]    |
[INFO] [stdout] 61 |     println!("{rgb1}", rgb1=RGB(0, 3, 254));
[INFO] [stdout]    |                ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: named argument `rgb1` is not used by name
[INFO] [stdout]   --> src/main.rs:62:20
[INFO] [stdout]    |
[INFO] [stdout] 62 |     println!("{}", rgb1=RGB(0, 0, 0));
[INFO] [stdout]    |               --   ^^^^ this named argument is referred to by position in formatting string
[INFO] [stdout]    |               |
[INFO] [stdout]    |               this formatting argument uses named argument `rgb1` by position
[INFO] [stdout]    |
[INFO] [stdout] help: use the named argument by name to avoid ambiguity
[INFO] [stdout]    |
[INFO] [stdout] 62 |     println!("{rgb1}", rgb1=RGB(0, 0, 0));
[INFO] [stdout]    |                ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] running `Command { std: "docker" "inspect" "1efad2508e48ca3986063f85fb72ae96b2c20dc80e1bac515572cfb29bf1410f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1efad2508e48ca3986063f85fb72ae96b2c20dc80e1bac515572cfb29bf1410f", kill_on_drop: false }`
[INFO] [stdout] 1efad2508e48ca3986063f85fb72ae96b2c20dc80e1bac515572cfb29bf1410f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e7fda0b2c9392283b99bee6204579c4cac962e954caa2d4797a7dfe47d9c384a
[INFO] running `Command { std: "docker" "start" "-a" "e7fda0b2c9392283b99bee6204579c4cac962e954caa2d4797a7dfe47d9c384a", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustexamples v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: named argument `rgb1` is not used by name
[INFO] [stdout]   --> src/main.rs:60:20
[INFO] [stdout]    |
[INFO] [stdout] 60 |     println!("{}", rgb1=RGB(128, 255, 90));
[INFO] [stdout]    |               --   ^^^^ this named argument is referred to by position in formatting string
[INFO] [stdout]    |               |
[INFO] [stdout]    |               this formatting argument uses named argument `rgb1` by position
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(named_arguments_used_positionally)]` on by default
[INFO] [stdout] help: use the named argument by name to avoid ambiguity
[INFO] [stdout]    |
[INFO] [stdout] 60 |     println!("{rgb1}", rgb1=RGB(128, 255, 90));
[INFO] [stdout]    |                ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: named argument `rgb1` is not used by name
[INFO] [stdout]   --> src/main.rs:61:20
[INFO] [stdout]    |
[INFO] [stdout] 61 |     println!("{}", rgb1=RGB(0, 3, 254));
[INFO] [stdout]    |               --   ^^^^ this named argument is referred to by position in formatting string
[INFO] [stdout]    |               |
[INFO] [stdout]    |               this formatting argument uses named argument `rgb1` by position
[INFO] [stdout]    |
[INFO] [stdout] help: use the named argument by name to avoid ambiguity
[INFO] [stdout]    |
[INFO] [stdout] 61 |     println!("{rgb1}", rgb1=RGB(0, 3, 254));
[INFO] [stdout]    |                ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: named argument `rgb1` is not used by name
[INFO] [stdout]   --> src/main.rs:62:20
[INFO] [stdout]    |
[INFO] [stdout] 62 |     println!("{}", rgb1=RGB(0, 0, 0));
[INFO] [stdout]    |               --   ^^^^ this named argument is referred to by position in formatting string
[INFO] [stdout]    |               |
[INFO] [stdout]    |               this formatting argument uses named argument `rgb1` by position
[INFO] [stdout]    |
[INFO] [stdout] help: use the named argument by name to avoid ambiguity
[INFO] [stdout]    |
[INFO] [stdout] 62 |     println!("{rgb1}", rgb1=RGB(0, 0, 0));
[INFO] [stdout]    |                ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] running `Command { std: "docker" "inspect" "e7fda0b2c9392283b99bee6204579c4cac962e954caa2d4797a7dfe47d9c384a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7fda0b2c9392283b99bee6204579c4cac962e954caa2d4797a7dfe47d9c384a", kill_on_drop: false }`
[INFO] [stdout] e7fda0b2c9392283b99bee6204579c4cac962e954caa2d4797a7dfe47d9c384a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e4e2f64f01bf9b13435ba690bfddf3466e7de10f52fb8542593925bf735a80cb
[INFO] running `Command { std: "docker" "start" "-a" "e4e2f64f01bf9b13435ba690bfddf3466e7de10f52fb8542593925bf735a80cb", kill_on_drop: false }`
[INFO] [stderr] warning: named argument `rgb1` is not used by name
[INFO] [stderr]   --> src/main.rs:60:20
[INFO] [stderr]    |
[INFO] [stderr] 60 |     println!("{}", rgb1=RGB(128, 255, 90));
[INFO] [stderr]    |               --   ^^^^ this named argument is referred to by position in formatting string
[INFO] [stderr]    |               |
[INFO] [stderr]    |               this formatting argument uses named argument `rgb1` by position
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(named_arguments_used_positionally)]` on by default
[INFO] [stderr] help: use the named argument by name to avoid ambiguity
[INFO] [stderr]    |
[INFO] [stderr] 60 |     println!("{rgb1}", rgb1=RGB(128, 255, 90));
[INFO] [stderr]    |                ++++
[INFO] [stderr] 
[INFO] [stderr] warning: named argument `rgb1` is not used by name
[INFO] [stderr]   --> src/main.rs:61:20
[INFO] [stderr]    |
[INFO] [stderr] 61 |     println!("{}", rgb1=RGB(0, 3, 254));
[INFO] [stderr]    |               --   ^^^^ this named argument is referred to by position in formatting string
[INFO] [stderr]    |               |
[INFO] [stderr]    |               this formatting argument uses named argument `rgb1` by position
[INFO] [stderr]    |
[INFO] [stderr] help: use the named argument by name to avoid ambiguity
[INFO] [stderr]    |
[INFO] [stderr] 61 |     println!("{rgb1}", rgb1=RGB(0, 3, 254));
[INFO] [stderr]    |                ++++
[INFO] [stderr] 
[INFO] [stderr] warning: named argument `rgb1` is not used by name
[INFO] [stderr]   --> src/main.rs:62:20
[INFO] [stderr]    |
[INFO] [stderr] 62 |     println!("{}", rgb1=RGB(0, 0, 0));
[INFO] [stderr]    |               --   ^^^^ this named argument is referred to by position in formatting string
[INFO] [stderr]    |               |
[INFO] [stderr]    |               this formatting argument uses named argument `rgb1` by position
[INFO] [stderr]    |
[INFO] [stderr] help: use the named argument by name to avoid ambiguity
[INFO] [stderr]    |
[INFO] [stderr] 62 |     println!("{rgb1}", rgb1=RGB(0, 0, 0));
[INFO] [stderr]    |                ++++
[INFO] [stderr] 
[INFO] [stderr] warning: `rustexamples` (bin "rustexamples" test) generated 3 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rustexamples-91cbf182a5cd9fc5)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e4e2f64f01bf9b13435ba690bfddf3466e7de10f52fb8542593925bf735a80cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4e2f64f01bf9b13435ba690bfddf3466e7de10f52fb8542593925bf735a80cb", kill_on_drop: false }`
[INFO] [stdout] e4e2f64f01bf9b13435ba690bfddf3466e7de10f52fb8542593925bf735a80cb