[INFO] fetching crate micro-tower 0.1.0...
[INFO] testing micro-tower-0.1.0 against 1.69.0 for beta-1.70-1
[INFO] extracting crate micro-tower 0.1.0 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate micro-tower 0.1.0 on toolchain 1.69.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate micro-tower 0.1.0
[INFO] finished tweaking crates.io crate micro-tower 0.1.0
[INFO] tweaked toml for crates.io crate micro-tower 0.1.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate crates.io crate micro-tower 0.1.0 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" "+1.69.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded micro-tower-codegen v0.1.0
[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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f02a3924779636db5e7317715d1b4fbbf692b7be8c655c4c5883025985c7b50b
[INFO] running `Command { std: "docker" "start" "-a" "f02a3924779636db5e7317715d1b4fbbf692b7be8c655c4c5883025985c7b50b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f02a3924779636db5e7317715d1b4fbbf692b7be8c655c4c5883025985c7b50b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f02a3924779636db5e7317715d1b4fbbf692b7be8c655c4c5883025985c7b50b", kill_on_drop: false }`
[INFO] [stdout] f02a3924779636db5e7317715d1b4fbbf692b7be8c655c4c5883025985c7b50b
[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=warn" "-e" "RUSTDOCFLAGS=--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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5731d72bf4cf111fafe3c5706887455f6b49e47e29cde642ed2bb2335d3ba6bc
[INFO] running `Command { std: "docker" "start" "-a" "5731d72bf4cf111fafe3c5706887455f6b49e47e29cde642ed2bb2335d3ba6bc", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.101
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling futures-channel v0.3.24
[INFO] [stderr]    Compiling futures-util v0.3.24
[INFO] [stderr]    Compiling tokio v1.21.2
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling futures-io v0.3.24
[INFO] [stderr]    Compiling signal-hook-registry v1.4.0
[INFO] [stderr]    Compiling mio v0.8.4
[INFO] [stderr]    Compiling indexmap v1.9.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling tower-layer v0.3.1
[INFO] [stderr]    Compiling hdrhistogram v7.5.2
[INFO] [stderr]    Compiling darling_core v0.14.1
[INFO] [stderr]    Compiling futures-macro v0.3.24
[INFO] [stderr]    Compiling tokio-macros v1.8.0
[INFO] [stderr]    Compiling pin-project-internal v1.0.12
[INFO] [stderr]    Compiling serde_derive v1.0.145
[INFO] [stderr]    Compiling tracing-attributes v0.1.22
[INFO] [stderr]    Compiling thiserror-impl v1.0.37
[INFO] [stderr]    Compiling darling_macro v0.14.1
[INFO] [stderr]    Compiling pin-project v1.0.12
[INFO] [stderr]    Compiling thiserror v1.0.37
[INFO] [stderr]    Compiling tracing v0.1.36
[INFO] [stderr]    Compiling darling v0.14.1
[INFO] [stderr]    Compiling derive_builder_core v0.11.2
[INFO] [stderr]    Compiling micro-tower-codegen v0.1.0
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/micro-tower-codegen-0.1.0/src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(proc_macro_diagnostic)]
[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 `micro-tower-codegen` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "5731d72bf4cf111fafe3c5706887455f6b49e47e29cde642ed2bb2335d3ba6bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5731d72bf4cf111fafe3c5706887455f6b49e47e29cde642ed2bb2335d3ba6bc", kill_on_drop: false }`
[INFO] [stdout] 5731d72bf4cf111fafe3c5706887455f6b49e47e29cde642ed2bb2335d3ba6bc
