[INFO] fetching crate drogue-boot 0.1.2...
[INFO] testing drogue-boot-0.1.2 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate drogue-boot 0.1.2 into /workspace/builds/worker-71/source
[INFO] validating manifest of crates.io crate drogue-boot 0.1.2 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-71/source/.cargo/config
[INFO] started tweaking crates.io crate drogue-boot 0.1.2
[INFO] finished tweaking crates.io crate drogue-boot 0.1.2
[INFO] tweaked toml for crates.io crate drogue-boot 0.1.2 written to /workspace/builds/worker-71/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "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" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/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" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d728c375131ef11682f440883a0baf499f4d48998d5425a1278dc7e4129ebd2d
[INFO] running `Command { std: "docker" "start" "-a" "d728c375131ef11682f440883a0baf499f4d48998d5425a1278dc7e4129ebd2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d728c375131ef11682f440883a0baf499f4d48998d5425a1278dc7e4129ebd2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d728c375131ef11682f440883a0baf499f4d48998d5425a1278dc7e4129ebd2d", kill_on_drop: false }`
[INFO] [stdout] d728c375131ef11682f440883a0baf499f4d48998d5425a1278dc7e4129ebd2d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/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" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 873aa42ff9c1e9adb35923ff3950843de08b404d24207370e7b9ec9889326b96
[INFO] running `Command { std: "docker" "start" "-a" "873aa42ff9c1e9adb35923ff3950843de08b404d24207370e7b9ec9889326b96", kill_on_drop: false }`
[INFO] [stderr]    Compiling drogue-boot v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(asm)]
[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 `drogue-boot` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "873aa42ff9c1e9adb35923ff3950843de08b404d24207370e7b9ec9889326b96", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "873aa42ff9c1e9adb35923ff3950843de08b404d24207370e7b9ec9889326b96", kill_on_drop: false }`
[INFO] [stdout] 873aa42ff9c1e9adb35923ff3950843de08b404d24207370e7b9ec9889326b96