[INFO] fetching crate format 0.2.4...
[INFO] checking format-0.2.4 against try#a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d for pr-145342-1
[INFO] extracting crate format 0.2.4 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate format 0.2.4
[INFO] finished tweaking crates.io crate format 0.2.4
[INFO] tweaked toml for crates.io crate format 0.2.4 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate format 0.2.4 on toolchain a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate format 0.2.4 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" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 829a55603ad2d827594f9eaab153c762af0dc7c1ef356ac7023adfe8e29a7c09
[INFO] running `Command { std: "docker" "start" "-a" "829a55603ad2d827594f9eaab153c762af0dc7c1ef356ac7023adfe8e29a7c09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "829a55603ad2d827594f9eaab153c762af0dc7c1ef356ac7023adfe8e29a7c09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "829a55603ad2d827594f9eaab153c762af0dc7c1ef356ac7023adfe8e29a7c09", kill_on_drop: false }`
[INFO] [stdout] 829a55603ad2d827594f9eaab153c762af0dc7c1ef356ac7023adfe8e29a7c09
[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=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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 69a84e270f266b6d026f322c3e0fd9a24d807a8ea0c8bf7d9a55e211dfecf51c
[INFO] running `Command { std: "docker" "start" "-a" "69a84e270f266b6d026f322c3e0fd9a24d807a8ea0c8bf7d9a55e211dfecf51c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.68
[INFO] [stderr]     Checking format-core v0.2.4
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling format-macro v0.2.4
[INFO] [stderr]     Checking format v0.2.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: named argument `b` is not used by name
[INFO] [stdout]    --> tests/with_macro.rs:150:39
[INFO] [stdout]     |
[INFO] [stdout] 150 |             lazy_format!("{}, {}", a, b = b)
[INFO] [stdout]     |                               --      ^ this named argument is referred to by position in formatting string
[INFO] [stdout]     |                               |
[INFO] [stdout]     |                               this formatting argument uses named argument `b` 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] 150 |             lazy_format!("{}, {b}", a, b = b)
[INFO] [stdout]     |                                +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.90s
[INFO] running `Command { std: "docker" "inspect" "69a84e270f266b6d026f322c3e0fd9a24d807a8ea0c8bf7d9a55e211dfecf51c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "69a84e270f266b6d026f322c3e0fd9a24d807a8ea0c8bf7d9a55e211dfecf51c", kill_on_drop: false }`
[INFO] [stdout] 69a84e270f266b6d026f322c3e0fd9a24d807a8ea0c8bf7d9a55e211dfecf51c