[INFO] fetching crate async-circe 0.2.3...
[INFO] checking async-circe-0.2.3 against 1.95.0 for pr-155915
[INFO] extracting crate async-circe 0.2.3 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate async-circe 0.2.3
[INFO] finished tweaking crates.io crate async-circe 0.2.3
[INFO] tweaked toml for crates.io crate async-circe 0.2.3 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate async-circe 0.2.3 on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 77 packages to latest compatible versions
[INFO] [stderr]       Adding toml v0.5.11 (available: v1.1.2+spec-1.1.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2d405d79bfb3894c83c080dfc860012534bcd3ce443acff06258913581aa7409
[INFO] running `Command { std: "docker" "start" "-a" "2d405d79bfb3894c83c080dfc860012534bcd3ce443acff06258913581aa7409", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2d405d79bfb3894c83c080dfc860012534bcd3ce443acff06258913581aa7409", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d405d79bfb3894c83c080dfc860012534bcd3ce443acff06258913581aa7409", kill_on_drop: false }`
[INFO] [stdout] 2d405d79bfb3894c83c080dfc860012534bcd3ce443acff06258913581aa7409
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1d08af04dd44e0d8eeff2ddee3449db2593b1adc52ed6718bf58183bc650ae15
[INFO] running `Command { std: "docker" "start" "-a" "1d08af04dd44e0d8eeff2ddee3449db2593b1adc52ed6718bf58183bc650ae15", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.2.62
[INFO] [stderr]    Compiling openssl v0.10.79
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]     Checking mio v1.2.0
[INFO] [stderr]     Checking tokio v1.52.3
[INFO] [stderr]    Compiling openssl-sys v0.9.115
[INFO] [stderr]    Compiling native-tls v0.2.18
[INFO] [stderr]    Compiling openssl-macros v0.1.1
[INFO] [stderr]    Compiling tracing-attributes v0.1.31
[INFO] [stderr]     Checking tracing v0.1.44
[INFO] [stderr]     Checking tokio-native-tls v0.3.1
[INFO] [stderr]     Checking async-circe v0.2.3 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:28:1
[INFO] [stdout]    |
[INFO] [stdout] 28 | #![feature(doc_cfg)]
[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:28:1
[INFO] [stdout]    |
[INFO] [stdout] 28 | #![feature(doc_cfg)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `async-circe` (lib test) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `async-circe` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "1d08af04dd44e0d8eeff2ddee3449db2593b1adc52ed6718bf58183bc650ae15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d08af04dd44e0d8eeff2ddee3449db2593b1adc52ed6718bf58183bc650ae15", kill_on_drop: false }`
[INFO] [stdout] 1d08af04dd44e0d8eeff2ddee3449db2593b1adc52ed6718bf58183bc650ae15
