[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] checking shan-by/rustexamples against try#4949cf2f817beadb9a248d423b6d55d6d2398ffe for pr-142681
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshan-by%2Frustexamples" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-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-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/shan-by/rustexamples on toolchain 4949cf2f817beadb9a248d423b6d55d6d2398ffe
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4949cf2f817beadb9a248d423b6d55d6d2398ffe" "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" "+4949cf2f817beadb9a248d423b6d55d6d2398ffe" "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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+4949cf2f817beadb9a248d423b6d55d6d2398ffe" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 07de1a1fe427a51fab2981a3c0862e075b31942d74e805b0923b750f29623764
[INFO] running `Command { std: "docker" "start" "-a" "07de1a1fe427a51fab2981a3c0862e075b31942d74e805b0923b750f29623764", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "07de1a1fe427a51fab2981a3c0862e075b31942d74e805b0923b750f29623764", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07de1a1fe427a51fab2981a3c0862e075b31942d74e805b0923b750f29623764", kill_on_drop: false }`
[INFO] [stdout] 07de1a1fe427a51fab2981a3c0862e075b31942d74e805b0923b750f29623764
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+4949cf2f817beadb9a248d423b6d55d6d2398ffe" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bab36a63ce2263c17184cde844344fa5cd2a58f09f4e91207539556530abb565
[INFO] running `Command { std: "docker" "start" "-a" "bab36a63ce2263c17184cde844344fa5cd2a58f09f4e91207539556530abb565", kill_on_drop: false }`
[INFO] [stderr]     Checking 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: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] [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 0.10s
[INFO] running `Command { std: "docker" "inspect" "bab36a63ce2263c17184cde844344fa5cd2a58f09f4e91207539556530abb565", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bab36a63ce2263c17184cde844344fa5cd2a58f09f4e91207539556530abb565", kill_on_drop: false }`
[INFO] [stdout] bab36a63ce2263c17184cde844344fa5cd2a58f09f4e91207539556530abb565