[INFO] fetching crate swc_ecma_codegen 0.40.0...
[INFO] checking swc_ecma_codegen-0.40.0 against beta for pr-78714
[INFO] extracting crate swc_ecma_codegen 0.40.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate swc_ecma_codegen 0.40.0 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate swc_ecma_codegen 0.40.0
[INFO] finished tweaking crates.io crate swc_ecma_codegen 0.40.0
[INFO] tweaked toml for crates.io crate swc_ecma_codegen 0.40.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 884777bbef413a43dd39aa2fb6dd49848501bef9252f8a2d8df3ae45a9d487d5
[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" "884777bbef413a43dd39aa2fb6dd49848501bef9252f8a2d8df3ae45a9d487d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "884777bbef413a43dd39aa2fb6dd49848501bef9252f8a2d8df3ae45a9d487d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "884777bbef413a43dd39aa2fb6dd49848501bef9252f8a2d8df3ae45a9d487d5", kill_on_drop: false }`
[INFO] [stdout] 884777bbef413a43dd39aa2fb6dd49848501bef9252f8a2d8df3ae45a9d487d5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=forbid" "-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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] df8c2a435ba5b36b42220f21822098117c297826498bdbdd535c98326fa22d56
[INFO] running `Command { std: "docker" "start" "-a" "df8c2a435ba5b36b42220f21822098117c297826498bdbdd535c98326fa22d56", kill_on_drop: false }`
[INFO] [stderr]     Checking if_chain v1.0.1
[INFO] [stderr]     Checking serde_json v1.0.59
[INFO] [stderr]    Compiling swc_ecma_parser_macros v0.4.1
[INFO] [stderr]    Compiling swc_ecma_codegen_macros v0.5.0
[INFO] [stderr]     Checking sourcemap v6.0.1
[INFO] [stderr]     Checking swc_common v0.10.5
[INFO] [stderr]     Checking swc_ecma_ast v0.34.0
[INFO] [stderr]     Checking testing v0.10.1
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/testing-0.10.1/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[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 `testing`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "df8c2a435ba5b36b42220f21822098117c297826498bdbdd535c98326fa22d56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df8c2a435ba5b36b42220f21822098117c297826498bdbdd535c98326fa22d56", kill_on_drop: false }`
[INFO] [stdout] df8c2a435ba5b36b42220f21822098117c297826498bdbdd535c98326fa22d56