[INFO] cloning repository https://github.com/abhi2425/rust-plyaground
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/abhi2425/rust-plyaground" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fabhi2425%2Frust-plyaground", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fabhi2425%2Frust-plyaground'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 19ddf5a13cbff4f1c6c2fdbd5ace2f14c8c75cbb
[INFO] checking abhi2425/rust-plyaground against try#028201683a76a5cd349729c6819c46607119c4e8 for pr-144157
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fabhi2425%2Frust-plyaground" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/abhi2425/rust-plyaground
[INFO] finished tweaking git repo https://github.com/abhi2425/rust-plyaground
[INFO] tweaked toml for git repo https://github.com/abhi2425/rust-plyaground written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/abhi2425/rust-plyaground on toolchain 028201683a76a5cd349729c6819c46607119c4e8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+028201683a76a5cd349729c6819c46607119c4e8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/abhi2425/rust-plyaground 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" "+028201683a76a5cd349729c6819c46607119c4e8" "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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+028201683a76a5cd349729c6819c46607119c4e8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7de87a9b0aef6811c13ba23ac55fe7d3007f473ec393e843ef13ec7149ef3bb9
[INFO] running `Command { std: "docker" "start" "-a" "7de87a9b0aef6811c13ba23ac55fe7d3007f473ec393e843ef13ec7149ef3bb9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7de87a9b0aef6811c13ba23ac55fe7d3007f473ec393e843ef13ec7149ef3bb9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7de87a9b0aef6811c13ba23ac55fe7d3007f473ec393e843ef13ec7149ef3bb9", kill_on_drop: false }`
[INFO] [stdout] 7de87a9b0aef6811c13ba23ac55fe7d3007f473ec393e843ef13ec7149ef3bb9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+028201683a76a5cd349729c6819c46607119c4e8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f92e7a6db5e7d1cd89a8701121850054d7fddc0e9190a2393a8a5e041a2d7706
[INFO] running `Command { std: "docker" "start" "-a" "f92e7a6db5e7d1cd89a8701121850054d7fddc0e9190a2393a8a5e041a2d7706", kill_on_drop: false }`
[INFO] [stderr]     Checking playground v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: named argument `red` is not used by name
[INFO] [stdout]    --> src/fundamentals/format.rs:147:13
[INFO] [stdout]     |
[INFO] [stdout] 146 |             "RGB ({red},{green},{blue}) 0x{:x}{:x}{:x}",
[INFO] [stdout]     |                                           ---- this formatting argument uses named argument `red` by position
[INFO] [stdout] 147 |             red = self.red,
[INFO] [stdout]     |             ^^^ this named argument is referred to by position in formatting string
[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] 146 |             "RGB ({red},{green},{blue}) 0x{red:x}{:x}{:x}",
[INFO] [stdout]     |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: named argument `green` is not used by name
[INFO] [stdout]    --> src/fundamentals/format.rs:148:13
[INFO] [stdout]     |
[INFO] [stdout] 146 |             "RGB ({red},{green},{blue}) 0x{:x}{:x}{:x}",
[INFO] [stdout]     |                                               ---- this formatting argument uses named argument `green` by position
[INFO] [stdout] 147 |             red = self.red,
[INFO] [stdout] 148 |             green = self.green,
[INFO] [stdout]     |             ^^^^^ this named argument is referred to by position in formatting string
[INFO] [stdout]     |
[INFO] [stdout] help: use the named argument by name to avoid ambiguity
[INFO] [stdout]     |
[INFO] [stdout] 146 |             "RGB ({red},{green},{blue}) 0x{:x}{green:x}{:x}",
[INFO] [stdout]     |                                                +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: named argument `blue` is not used by name
[INFO] [stdout]    --> src/fundamentals/format.rs:149:13
[INFO] [stdout]     |
[INFO] [stdout] 146 |             "RGB ({red},{green},{blue}) 0x{:x}{:x}{:x}",
[INFO] [stdout]     |                                                   ---- this formatting argument uses named argument `blue` by position
[INFO] [stdout] ...
[INFO] [stdout] 149 |             blue = self.blue
[INFO] [stdout]     |             ^^^^ this named argument is referred to by position in formatting string
[INFO] [stdout]     |
[INFO] [stdout] help: use the named argument by name to avoid ambiguity
[INFO] [stdout]     |
[INFO] [stdout] 146 |             "RGB ({red},{green},{blue}) 0x{:x}{:x}{blue:x}",
[INFO] [stdout]     |                                                    ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: named argument `red` is not used by name
[INFO] [stdout]    --> src/fundamentals/format.rs:147:13
[INFO] [stdout]     |
[INFO] [stdout] 146 |             "RGB ({red},{green},{blue}) 0x{:x}{:x}{:x}",
[INFO] [stdout]     |                                           ---- this formatting argument uses named argument `red` by position
[INFO] [stdout] 147 |             red = self.red,
[INFO] [stdout]     |             ^^^ this named argument is referred to by position in formatting string
[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] 146 |             "RGB ({red},{green},{blue}) 0x{red:x}{:x}{:x}",
[INFO] [stdout]     |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: named argument `green` is not used by name
[INFO] [stdout]    --> src/fundamentals/format.rs:148:13
[INFO] [stdout]     |
[INFO] [stdout] 146 |             "RGB ({red},{green},{blue}) 0x{:x}{:x}{:x}",
[INFO] [stdout]     |                                               ---- this formatting argument uses named argument `green` by position
[INFO] [stdout] 147 |             red = self.red,
[INFO] [stdout] 148 |             green = self.green,
[INFO] [stdout]     |             ^^^^^ this named argument is referred to by position in formatting string
[INFO] [stdout]     |
[INFO] [stdout] help: use the named argument by name to avoid ambiguity
[INFO] [stdout]     |
[INFO] [stdout] 146 |             "RGB ({red},{green},{blue}) 0x{:x}{green:x}{:x}",
[INFO] [stdout]     |                                                +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: named argument `blue` is not used by name
[INFO] [stdout]    --> src/fundamentals/format.rs:149:13
[INFO] [stdout]     |
[INFO] [stdout] 146 |             "RGB ({red},{green},{blue}) 0x{:x}{:x}{:x}",
[INFO] [stdout]     |                                                   ---- this formatting argument uses named argument `blue` by position
[INFO] [stdout] ...
[INFO] [stdout] 149 |             blue = self.blue
[INFO] [stdout]     |             ^^^^ this named argument is referred to by position in formatting string
[INFO] [stdout]     |
[INFO] [stdout] help: use the named argument by name to avoid ambiguity
[INFO] [stdout]     |
[INFO] [stdout] 146 |             "RGB ({red},{green},{blue}) 0x{:x}{:x}{blue:x}",
[INFO] [stdout]     |                                                    ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.64s
[INFO] running `Command { std: "docker" "inspect" "f92e7a6db5e7d1cd89a8701121850054d7fddc0e9190a2393a8a5e041a2d7706", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f92e7a6db5e7d1cd89a8701121850054d7fddc0e9190a2393a8a5e041a2d7706", kill_on_drop: false }`
[INFO] [stdout] f92e7a6db5e7d1cd89a8701121850054d7fddc0e9190a2393a8a5e041a2d7706