[INFO] fetching crate bitcoin-script 0.1.1...
[INFO] testing bitcoin-script-0.1.1 against 1.47.0 for beta-1.48-1
[INFO] extracting crate bitcoin-script 0.1.1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate bitcoin-script 0.1.1 on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bitcoin-script 0.1.1
[INFO] finished tweaking crates.io crate bitcoin-script 0.1.1
[INFO] tweaked toml for crates.io crate bitcoin-script 0.1.1 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "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" "+1.47.0" "fetch" "--locked" "--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-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] cd859be9b2800cfcd591a72f664d21c79200f0239ea173b8d340d7a74082d6ed
[INFO] running `Command { std: "docker" "start" "-a" "cd859be9b2800cfcd591a72f664d21c79200f0239ea173b8d340d7a74082d6ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cd859be9b2800cfcd591a72f664d21c79200f0239ea173b8d340d7a74082d6ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd859be9b2800cfcd591a72f664d21c79200f0239ea173b8d340d7a74082d6ed", kill_on_drop: false }`
[INFO] [stdout] cd859be9b2800cfcd591a72f664d21c79200f0239ea173b8d340d7a74082d6ed
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] acc52d01669f772f0ef48021b0cd5a9af755dc086142831a6403970c750d0aa3
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "acc52d01669f772f0ef48021b0cd5a9af755dc086142831a6403970c750d0aa3", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.41
[INFO] [stderr]    Compiling syn v1.0.44
[INFO] [stderr]    Compiling bech32 v0.7.2
[INFO] [stderr]    Compiling bitcoin_hashes v0.7.6
[INFO] [stderr]    Compiling hex v0.4.2
[INFO] [stderr]    Compiling proc-macro-error-attr v0.4.12
[INFO] [stderr]    Compiling proc-macro-error v0.4.12
[INFO] [stderr]    Compiling secp256k1-sys v0.1.2
[INFO] [stderr]    Compiling secp256k1 v0.17.2
[INFO] [stderr]    Compiling syn-mid v0.5.1
[INFO] [stderr]    Compiling bitcoin v0.23.0
[INFO] [stderr]    Compiling bitcoin-script 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:117:1
[INFO] [stdout]     |
[INFO] [stdout] 117 | #![feature(proc_macro_hygiene)]
[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 `bitcoin-script`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "acc52d01669f772f0ef48021b0cd5a9af755dc086142831a6403970c750d0aa3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "acc52d01669f772f0ef48021b0cd5a9af755dc086142831a6403970c750d0aa3", kill_on_drop: false }`
[INFO] [stdout] acc52d01669f772f0ef48021b0cd5a9af755dc086142831a6403970c750d0aa3
