[INFO] updating cached repository steadylearner/Webassembly
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/steadylearner/Webassembly
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/steadylearner/Webassembly" "work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/steadylearner/Webassembly"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/steadylearner/Webassembly'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/steadylearner/Webassembly" "work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/steadylearner/Webassembly"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/steadylearner/Webassembly'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 1968297a4a2e3fccad6ef5e31e6b39d8afc0120c
[INFO] sha for GitHub repo steadylearner/Webassembly: 1968297a4a2e3fccad6ef5e31e6b39d8afc0120c
[INFO] validating manifest of steadylearner/Webassembly on toolchain master#e305df1846a6d985315917ae0c81b74af8b4e641
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of steadylearner/Webassembly on toolchain try#99a7498759a22b5684caf798a98b7e90ad9d2443
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing steadylearner/Webassembly
[INFO] finished frobbing steadylearner/Webassembly
[INFO] frobbed toml for steadylearner/Webassembly written to work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/steadylearner/Webassembly/Cargo.toml
[INFO] started frobbing steadylearner/Webassembly
[INFO] finished frobbing steadylearner/Webassembly
[INFO] frobbed toml for steadylearner/Webassembly written to work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/steadylearner/Webassembly/Cargo.toml
[INFO] crate steadylearner/Webassembly already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking steadylearner/Webassembly against try#99a7498759a22b5684caf798a98b7e90ad9d2443 for pr-60039-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-60039-1/worker-2/try#99a7498759a22b5684caf798a98b7e90ad9d2443:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/steadylearner/Webassembly:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] acf442762111d78b2706657c348641021dd9e956f049921bbcee5bcf9d77f6a9
[INFO] running `"docker" "start" "-a" "acf442762111d78b2706657c348641021dd9e956f049921bbcee5bcf9d77f6a9"`
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.23
[INFO] [stderr]    Compiling wasm-bindgen v0.2.23
[INFO] [stderr]    Compiling log v0.4.5
[INFO] [stderr]    Compiling serde_json v1.0.31
[INFO] [stderr]    Compiling syn v0.15.7
[INFO] [stderr]    Compiling serde_derive v1.0.79
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.23
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.23
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.23
[INFO] [stderr]     Checking javascript_and_web v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0601]: `main` function not found in crate `simple`
[INFO] [stderr]   |
[INFO] [stderr]   = note: consider adding a `main` function to `examples/simple.rs`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0601`.
[INFO] [stderr] error: Could not compile `javascript_and_web`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "acf442762111d78b2706657c348641021dd9e956f049921bbcee5bcf9d77f6a9"`
[INFO] running `"docker" "rm" "-f" "acf442762111d78b2706657c348641021dd9e956f049921bbcee5bcf9d77f6a9"`
[INFO] [stdout] acf442762111d78b2706657c348641021dd9e956f049921bbcee5bcf9d77f6a9