[INFO] updating cached repository Mathspy/unsafe-now
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Mathspy/unsafe-now
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Mathspy/unsafe-now" "work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/Mathspy/unsafe-now"`
[INFO] [stderr] Cloning into 'work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/Mathspy/unsafe-now'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Mathspy/unsafe-now" "work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/Mathspy/unsafe-now"`
[INFO] [stderr] Cloning into 'work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/Mathspy/unsafe-now'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 9f94bdda5780c5049c136d39e10139efbdbdde88
[INFO] sha for GitHub repo Mathspy/unsafe-now: 9f94bdda5780c5049c136d39e10139efbdbdde88
[INFO] validating manifest of Mathspy/unsafe-now on toolchain master#452087b4bf18cece2d52d7cd8c9147195e5404bf
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of Mathspy/unsafe-now on toolchain try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing Mathspy/unsafe-now
[INFO] finished frobbing Mathspy/unsafe-now
[INFO] frobbed toml for Mathspy/unsafe-now written to work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/Mathspy/unsafe-now/Cargo.toml
[INFO] started frobbing Mathspy/unsafe-now
[INFO] finished frobbing Mathspy/unsafe-now
[INFO] frobbed toml for Mathspy/unsafe-now written to work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/Mathspy/unsafe-now/Cargo.toml
[INFO] crate Mathspy/unsafe-now already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking Mathspy/unsafe-now against try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab for pr-63247
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63247/worker-6/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/Mathspy/unsafe-now:/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" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 22d7633fc91e0d4c06d3face1e0dc1b759fd8509cb86294c867b9f575a2c5f07
[INFO] running `"docker" "start" "-a" "22d7633fc91e0d4c06d3face1e0dc1b759fd8509cb86294c867b9f575a2c5f07"`
[INFO] [stderr]    Compiling cc v1.0.31
[INFO] [stderr]    Compiling syn v0.15.35
[INFO] [stderr]     Checking unicode-normalization v0.1.8
[INFO] [stderr]     Checking proc-macro2 v0.4.30
[INFO] [stderr]    Compiling quote v0.6.11
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking http v0.1.17
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]    Compiling openssl-sys v0.9.42
[INFO] [stderr]    Compiling libssh2-sys v0.2.11
[INFO] [stderr]    Compiling libgit2-sys v0.8.0
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]     Checking geiger v0.3.1
[INFO] [stderr]    Compiling serde_derive v1.0.89
[INFO] [stderr]     Checking serde v1.0.92
[INFO] [stderr]     Checking git2 v0.9.1
[INFO] [stderr]     Checking serde_json v1.0.39
[INFO] [stderr]     Checking unsafe-now v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0601]: `main` function not found in crate `index`
[INFO] [stderr]   |
[INFO] [stderr]   = note: consider adding a `main` function to `index.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 `unsafe-now`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: function is never used: `handler`
[INFO] [stderr]    --> index.rs:121:1
[INFO] [stderr]     |
[INFO] [stderr] 121 | fn handler(request: Request<()>) -> http::Result<Response<String>> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "22d7633fc91e0d4c06d3face1e0dc1b759fd8509cb86294c867b9f575a2c5f07"`
[INFO] running `"docker" "rm" "-f" "22d7633fc91e0d4c06d3face1e0dc1b759fd8509cb86294c867b9f575a2c5f07"`
[INFO] [stdout] 22d7633fc91e0d4c06d3face1e0dc1b759fd8509cb86294c867b9f575a2c5f07