[INFO] fetching crate bl602-macros 0.0.2...
[INFO] testing bl602-macros-0.0.2 against 1.54.0 for beta-1.55-1
[INFO] extracting crate bl602-macros 0.0.2 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate bl602-macros 0.0.2 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bl602-macros 0.0.2
[INFO] finished tweaking crates.io crate bl602-macros 0.0.2
[INFO] tweaked toml for crates.io crate bl602-macros 0.0.2 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "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" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ceba170db1e16f67dda5041a51658cc6ebcc94d85aedbdb5e3b2abc286b02060
[INFO] running `Command { std: "docker" "start" "-a" "ceba170db1e16f67dda5041a51658cc6ebcc94d85aedbdb5e3b2abc286b02060", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ceba170db1e16f67dda5041a51658cc6ebcc94d85aedbdb5e3b2abc286b02060", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ceba170db1e16f67dda5041a51658cc6ebcc94d85aedbdb5e3b2abc286b02060", kill_on_drop: false }`
[INFO] [stdout] ceba170db1e16f67dda5041a51658cc6ebcc94d85aedbdb5e3b2abc286b02060
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e3f82410683abfad05e5f522f11d0e369bd1159c8cdeb0b790417550a8d8f867
[INFO] running `Command { std: "docker" "start" "-a" "e3f82410683abfad05e5f522f11d0e369bd1159c8cdeb0b790417550a8d8f867", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling cty v0.2.1
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling cstr_core v0.2.4
[INFO] [stderr]    Compiling bl602-macros v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:21:1
[INFO] [stdout]    |
[INFO] [stdout] 21 | #![feature(proc_macro_span)]  //  Allow use of spans in Procedural Macros
[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 `bl602-macros`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "e3f82410683abfad05e5f522f11d0e369bd1159c8cdeb0b790417550a8d8f867", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3f82410683abfad05e5f522f11d0e369bd1159c8cdeb0b790417550a8d8f867", kill_on_drop: false }`
[INFO] [stdout] e3f82410683abfad05e5f522f11d0e369bd1159c8cdeb0b790417550a8d8f867
