[INFO] fetching crate Boot-Banner 0.1.1...
[INFO] checking Boot-Banner-0.1.1 against master#3f1be1ec7ec3d8e80beb381ee82164a0aa3ca777 for pr-132289
[INFO] extracting crate Boot-Banner 0.1.1 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate Boot-Banner 0.1.1 on toolchain 3f1be1ec7ec3d8e80beb381ee82164a0aa3ca777
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3f1be1ec7ec3d8e80beb381ee82164a0aa3ca777" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate Boot-Banner 0.1.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate Boot-Banner 0.1.1
[INFO] tweaked toml for crates.io crate Boot-Banner 0.1.1 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate crates.io crate Boot-Banner 0.1.1 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" "+3f1be1ec7ec3d8e80beb381ee82164a0aa3ca777" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded proc-macro2 v1.0.86
[INFO] [stderr]   Downloaded syn v2.0.79
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+3f1be1ec7ec3d8e80beb381ee82164a0aa3ca777" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 73558b84139aa45fe017238bd5e36584de740c1677469be84375cd3035f398b5
[INFO] running `Command { std: "docker" "start" "-a" "73558b84139aa45fe017238bd5e36584de740c1677469be84375cd3035f398b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "73558b84139aa45fe017238bd5e36584de740c1677469be84375cd3035f398b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "73558b84139aa45fe017238bd5e36584de740c1677469be84375cd3035f398b5", kill_on_drop: false }`
[INFO] [stdout] 73558b84139aa45fe017238bd5e36584de740c1677469be84375cd3035f398b5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+3f1be1ec7ec3d8e80beb381ee82164a0aa3ca777" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 30ad94fd0e186d90d22f933541a7e880019c0d200eb0d39188d93b94fc32238f
[INFO] running `Command { std: "docker" "start" "-a" "30ad94fd0e186d90d22f933541a7e880019c0d200eb0d39188d93b94fc32238f", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]     Checking unicode-ident v1.0.13
[INFO] [stderr]     Checking quote v1.0.37
[INFO] [stderr]     Checking syn v2.0.79
[INFO] [stderr]     Checking Boot-Banner v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: crate `Boot_Banner` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = help: convert the identifier to snake case: `boot_banner`
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `Boot_Banner` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = help: convert the identifier to snake case: `boot_banner`
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0670]: `async fn` is not permitted in Rust 2015
[INFO] [stdout]  --> examples/src/main.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | async fn main() -> Result<(), _> {
[INFO] [stdout]   | ^^^^^ to use `async fn`, switch to Rust 2018 or later
[INFO] [stdout]   |
[INFO] [stdout]   = help: set `edition = "2021"` in `Cargo.toml`
[INFO] [stdout]   = note: for more on editions, read https://doc.rust-lang.org/edition-guide
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0670`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `Boot-Banner` (example "src") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "30ad94fd0e186d90d22f933541a7e880019c0d200eb0d39188d93b94fc32238f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "30ad94fd0e186d90d22f933541a7e880019c0d200eb0d39188d93b94fc32238f", kill_on_drop: false }`
[INFO] [stdout] 30ad94fd0e186d90d22f933541a7e880019c0d200eb0d39188d93b94fc32238f
