[INFO] fetching crate bitcoin-script 0.1.1...
[INFO] checking bitcoin-script-0.1.1 against 1.55.0 for beta-1.56-3
[INFO] extracting crate bitcoin-script 0.1.1 into /workspace/builds/worker-89/source
[INFO] validating manifest of crates.io crate bitcoin-script 0.1.1 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", 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-89/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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" "+1.55.0" "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-89/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-89/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" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9c7ac6ab776d029f3b50a8e18155c3db49cddab82768fe81baa7888763e9bd0f
[INFO] running `Command { std: "docker" "start" "-a" "9c7ac6ab776d029f3b50a8e18155c3db49cddab82768fe81baa7888763e9bd0f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9c7ac6ab776d029f3b50a8e18155c3db49cddab82768fe81baa7888763e9bd0f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c7ac6ab776d029f3b50a8e18155c3db49cddab82768fe81baa7888763e9bd0f", kill_on_drop: false }`
[INFO] [stdout] 9c7ac6ab776d029f3b50a8e18155c3db49cddab82768fe81baa7888763e9bd0f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-89/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-89/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" "+1.55.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7f5eed7e448ec14a003efd37aac2cb5abcba8094bed0033dd2433579b124f259
[INFO] running `Command { std: "docker" "start" "-a" "7f5eed7e448ec14a003efd37aac2cb5abcba8094bed0033dd2433579b124f259", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling cc v1.0.41
[INFO] [stderr]    Compiling syn v1.0.80
[INFO] [stderr]     Checking bech32 v0.7.3
[INFO] [stderr]     Checking bitcoin_hashes v0.7.6
[INFO] [stderr]    Compiling hex v0.4.3
[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 syn-mid v0.5.3
[INFO] [stderr]     Checking secp256k1 v0.17.2
[INFO] [stderr]     Checking bitcoin v0.23.0
[INFO] [stderr]     Checking 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[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` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/parse.rs:63:21
[INFO] [stdout]    |
[INFO] [stdout] 58 | /                     emit_error!(
[INFO] [stdout] 59 | |                        token.span(),
[INFO] [stdout] 60 | |                        "unknown opcode \"{}\"",
[INFO] [stdout] 61 | |                        token_str
[INFO] [stdout] 62 | |                     );
[INFO] [stdout]    | |______________________- any code following this expression is unreachable
[INFO] [stdout] 63 |                       &opcodes::OP_NOP
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/parse.rs:123:9
[INFO] [stdout]     |
[INFO] [stdout] 122 |         emit_error!(token.span(), "invalid hex literal ({})", err);
[INFO] [stdout]     |         ----------------------------------------------------------- any code following this expression is unreachable
[INFO] [stdout] 123 |         vec![]
[INFO] [stdout]     |         ^^^^^^ unreachable expression
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `vec` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/parse.rs:132:9
[INFO] [stdout]     |
[INFO] [stdout] 131 |         emit_error!(token.span(), "invalid number literal ({})", err);
[INFO] [stdout]     |         -------------------------------------------------------------- any code following this expression is unreachable
[INFO] [stdout] 132 |         0
[INFO] [stdout]     |         ^ unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/parse.rs:146:9
[INFO] [stdout]     |
[INFO] [stdout] 142 | /         emit_error!(
[INFO] [stdout] 143 | |             token.span(),
[INFO] [stdout] 144 | |             "expected negative sign to be followed by number literal"
[INFO] [stdout] 145 | |         );
[INFO] [stdout]     | |__________- any code following this expression is unreachable
[INFO] [stdout] 146 |           (Syntax::Int(0), token.span())
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "7f5eed7e448ec14a003efd37aac2cb5abcba8094bed0033dd2433579b124f259", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f5eed7e448ec14a003efd37aac2cb5abcba8094bed0033dd2433579b124f259", kill_on_drop: false }`
[INFO] [stdout] 7f5eed7e448ec14a003efd37aac2cb5abcba8094bed0033dd2433579b124f259
