[INFO] fetching crate dogehouse-api 0.1.1...
[INFO] checking dogehouse-api-0.1.1 against 1.55.0 for beta-1.56-3
[INFO] extracting crate dogehouse-api 0.1.1 into /workspace/builds/worker-96/source
[INFO] validating manifest of crates.io crate dogehouse-api 0.1.1 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dogehouse-api 0.1.1
[INFO] finished tweaking crates.io crate dogehouse-api 0.1.1
[INFO] tweaked toml for crates.io crate dogehouse-api 0.1.1 written to /workspace/builds/worker-96/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 37dfda2b5cbeb9c0e61a5cdbf5ab4ceaa19cc476ef9db33081ab4b1b0a738922
[INFO] running `Command { std: "docker" "start" "-a" "37dfda2b5cbeb9c0e61a5cdbf5ab4ceaa19cc476ef9db33081ab4b1b0a738922", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "37dfda2b5cbeb9c0e61a5cdbf5ab4ceaa19cc476ef9db33081ab4b1b0a738922", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37dfda2b5cbeb9c0e61a5cdbf5ab4ceaa19cc476ef9db33081ab4b1b0a738922", kill_on_drop: false }`
[INFO] [stdout] 37dfda2b5cbeb9c0e61a5cdbf5ab4ceaa19cc476ef9db33081ab4b1b0a738922
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-96/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b235f06be3a95abc110d4df595b4ca2b84c93710ce77fe80541e2ab891e01e20
[INFO] running `Command { std: "docker" "start" "-a" "b235f06be3a95abc110d4df595b4ca2b84c93710ce77fe80541e2ab891e01e20", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.80
[INFO] [stderr]    Compiling futures-task v0.3.17
[INFO] [stderr]    Compiling async-trait v0.1.51
[INFO] [stderr]     Checking httpdate v1.0.1
[INFO] [stderr]    Compiling tokio v1.12.0
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling futures-util v0.3.17
[INFO] [stderr]     Checking tracing v0.1.29
[INFO] [stderr]     Checking http-body v0.4.3
[INFO] [stderr]     Checking mio v0.7.13
[INFO] [stderr]     Checking openssl-sys v0.9.67
[INFO] [stderr]     Checking socket2 v0.4.2
[INFO] [stderr]     Checking openssl v0.10.36
[INFO] [stderr]     Checking native-tls v0.2.8
[INFO] [stderr]    Compiling tokio-macros v1.5.0
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]     Checking tokio-util v0.6.8
[INFO] [stderr]     Checking tokio-native-tls v0.3.0
[INFO] [stderr]     Checking serde v1.0.130
[INFO] [stderr]     Checking h2 v0.3.6
[INFO] [stderr]     Checking serde_json v1.0.68
[INFO] [stderr]     Checking hyper v0.14.13
[INFO] [stderr]     Checking hyper-tls v0.5.0
[INFO] [stderr]     Checking dogehouse-api v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:22:1
[INFO] [stdout]    |
[INFO] [stdout] 22 | #![feature(format_args_capture)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:22:1
[INFO] [stdout]    |
[INFO] [stdout] 22 | #![feature(format_args_capture)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `dogehouse-api` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "b235f06be3a95abc110d4df595b4ca2b84c93710ce77fe80541e2ab891e01e20", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b235f06be3a95abc110d4df595b4ca2b84c93710ce77fe80541e2ab891e01e20", kill_on_drop: false }`
[INFO] [stdout] b235f06be3a95abc110d4df595b4ca2b84c93710ce77fe80541e2ab891e01e20
