[INFO] fetching crate wasmir 0.1.13...
[INFO] testing wasmir-0.1.13 against beta-2022-02-22 for beta-1.60-1
[INFO] extracting crate wasmir 0.1.13 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate wasmir 0.1.13 on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate wasmir 0.1.13
[INFO] finished tweaking crates.io crate wasmir 0.1.13
[INFO] tweaked toml for crates.io crate wasmir 0.1.13 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate crates.io crate wasmir 0.1.13 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.74
[INFO] [stderr]   Downloaded quote v1.0.9
[INFO] [stderr]   Downloaded proc-macro2 v1.0.27
[INFO] [stderr]   Downloaded toml v0.5.8
[INFO] [stderr]   Downloaded serde v1.0.126
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.74
[INFO] [stderr]   Downloaded bumpalo v3.7.0
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.74
[INFO] [stderr]   Downloaded syn v1.0.72
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.74
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.74
[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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 863edbcea78f8af106da649125dc3af1be4fe98752bcf9647f076c06f7dddec3
[INFO] running `Command { std: "docker" "start" "-a" "863edbcea78f8af106da649125dc3af1be4fe98752bcf9647f076c06f7dddec3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "863edbcea78f8af106da649125dc3af1be4fe98752bcf9647f076c06f7dddec3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "863edbcea78f8af106da649125dc3af1be4fe98752bcf9647f076c06f7dddec3", kill_on_drop: false }`
[INFO] [stdout] 863edbcea78f8af106da649125dc3af1be4fe98752bcf9647f076c06f7dddec3
[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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2903c43b6ca98a638d282aa36a07caed09fe869d85ea4a1af9431fdd453236e2
[INFO] running `Command { std: "docker" "start" "-a" "2903c43b6ca98a638d282aa36a07caed09fe869d85ea4a1af9431fdd453236e2", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.74
[INFO] [stderr]    Compiling bumpalo v3.7.0
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling wasm-bindgen v0.2.74
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.74
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.74
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.74
[INFO] [stderr]    Compiling wasmir v0.1.13 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(string_remove_matches)]
[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 `wasmir` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "2903c43b6ca98a638d282aa36a07caed09fe869d85ea4a1af9431fdd453236e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2903c43b6ca98a638d282aa36a07caed09fe869d85ea4a1af9431fdd453236e2", kill_on_drop: false }`
[INFO] [stdout] 2903c43b6ca98a638d282aa36a07caed09fe869d85ea4a1af9431fdd453236e2