[INFO] cloning repository inv2004/rust_vectors
[INFO] running `"git" "clone" "--bare" "git://github.com/inv2004/rust_vectors.git" "work/cache/sources/gh/inv2004/rust_vectors"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/inv2004/rust_vectors'...
[INFO] running `"git" "clone" "work/cache/sources/gh/inv2004/rust_vectors" "work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/gh/inv2004/rust_vectors"`
[INFO] [stderr] Cloning into 'work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/gh/inv2004/rust_vectors'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/inv2004/rust_vectors" "work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/inv2004/rust_vectors"`
[INFO] [stderr] Cloning into 'work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/inv2004/rust_vectors'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] cfb6664baa7962ded75976f7c794eac83fd5f7ea
[INFO] sha for GitHub repo inv2004/rust_vectors: cfb6664baa7962ded75976f7c794eac83fd5f7ea
[INFO] validating manifest of inv2004/rust_vectors on toolchain master#9f06855064ed06a50c496577b21ca50f92a2e67d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of inv2004/rust_vectors on toolchain try#d3301713b54af69ca9de941a8c6b0d8287dbd6df
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing inv2004/rust_vectors
[INFO] finished frobbing inv2004/rust_vectors
[INFO] frobbed toml for inv2004/rust_vectors written to work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/gh/inv2004/rust_vectors/Cargo.toml
[INFO] started frobbing inv2004/rust_vectors
[INFO] finished frobbing inv2004/rust_vectors
[INFO] frobbed toml for inv2004/rust_vectors written to work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/inv2004/rust_vectors/Cargo.toml
[INFO] crate inv2004/rust_vectors already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking inv2004/rust_vectors against try#d3301713b54af69ca9de941a8c6b0d8287dbd6df for pr-61874
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61874/worker-3/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/inv2004/rust_vectors:/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" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 91043440e27487d6650f5b3785aa1f45b3f4127f293f571bbb5d9fc4d5682884
[INFO] running `"docker" "start" "-a" "91043440e27487d6650f5b3785aa1f45b3f4127f293f571bbb5d9fc4d5682884"`
[INFO] [stderr]     Checking rust_vectors v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `test::Bencher`
[INFO] [stderr]  --> src/mavg.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use test::Bencher;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `test::Bencher`
[INFO] [stderr]  --> src/deltas.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use test::Bencher;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `test::Bencher`
[INFO] [stderr]  --> src/find_amend.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use test::Bencher;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `test::Bencher`
[INFO] [stderr]  --> src/max.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use test::Bencher;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `test::Bencher`
[INFO] [stderr]  --> src/dev.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use test::Bencher;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `test::Bencher`
[INFO] [stderr]  --> src/wavg.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use test::Bencher;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `test::Bencher`
[INFO] [stderr]  --> src/med.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use test::Bencher;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0601]: `main` function not found in crate `rust_vectors`
[INFO] [stderr]   |
[INFO] [stderr]   = note: consider adding a `main` function to `src/main.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 `rust_vectors`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: the feature `iterator_for_each` has been stable since 1.21.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> src/main.rs:3:12
[INFO] [stderr]   |
[INFO] [stderr] 3 | #![feature(iterator_for_each)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(stable_features)] on by default
[INFO] [stderr] 
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "91043440e27487d6650f5b3785aa1f45b3f4127f293f571bbb5d9fc4d5682884"`
[INFO] running `"docker" "rm" "-f" "91043440e27487d6650f5b3785aa1f45b3f4127f293f571bbb5d9fc4d5682884"`
[INFO] [stdout] 91043440e27487d6650f5b3785aa1f45b3f4127f293f571bbb5d9fc4d5682884