[INFO] updating cached repository gregtatum/rust-sketches
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/gregtatum/rust-sketches
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/gregtatum/rust-sketches" "work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/gregtatum/rust-sketches"`
[INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/gregtatum/rust-sketches'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/gregtatum/rust-sketches" "work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/gregtatum/rust-sketches"`
[INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/gregtatum/rust-sketches'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d72efc73822d9837cb7856e6dfae8b85bcaec8bd
[INFO] sha for GitHub repo gregtatum/rust-sketches: d72efc73822d9837cb7856e6dfae8b85bcaec8bd
[INFO] validating manifest of gregtatum/rust-sketches on toolchain master#435236b8877cdb98c82eaebfb7887782277265c5
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of gregtatum/rust-sketches on toolchain try#b5c7f157c20453dde8d47371abe73b32351b4e7f
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing gregtatum/rust-sketches
[INFO] finished frobbing gregtatum/rust-sketches
[INFO] frobbed toml for gregtatum/rust-sketches written to work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/gregtatum/rust-sketches/Cargo.toml
[INFO] started frobbing gregtatum/rust-sketches
[INFO] finished frobbing gregtatum/rust-sketches
[INFO] frobbed toml for gregtatum/rust-sketches written to work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/gregtatum/rust-sketches/Cargo.toml
[INFO] crate gregtatum/rust-sketches already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking gregtatum/rust-sketches against try#b5c7f157c20453dde8d47371abe73b32351b4e7f for pr-62849
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62849/worker-1/try#b5c7f157c20453dde8d47371abe73b32351b4e7f:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/gregtatum/rust-sketches:/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" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 31c0031f7ceb7717f5c7dc27c99a7d24141061edc7aa15cb3197370a0b78c7f2
[INFO] running `"docker" "start" "-a" "31c0031f7ceb7717f5c7dc27c99a7d24141061edc7aa15cb3197370a0b78c7f2"`
[INFO] [stderr]     Checking rust-memory v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0601]: `main` function not found in crate `generic_traits`
[INFO] [stderr]   |
[INFO] [stderr]   = note: consider adding a `main` function to `examples/generic-traits.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-memory`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]  --> examples/match-ownership.rs:4:9
[INFO] [stderr]   |
[INFO] [stderr] 4 |     let mut x = &Struct { value: 5 };
[INFO] [stderr]   |         ----^
[INFO] [stderr]   |         |
[INFO] [stderr]   |         help: remove this `mut`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vecs2`
[INFO] [stderr]   --> examples/transmute-vecs.rs:37:9
[INFO] [stderr]    |
[INFO] [stderr] 37 |     let vecs2 = vec![[0.0, 0.0], [1.0, 1.0]];
[INFO] [stderr]    |         ^^^^^ help: consider prefixing with an underscore: `_vecs2`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `transmute`
[INFO] [stderr]   --> examples/transmute-vecs.rs:31:1
[INFO] [stderr]    |
[INFO] [stderr] 31 | fn transmute() {
[INFO] [stderr]    | ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> examples/transmute-vecs.rs:11:17
[INFO] [stderr]    |
[INFO] [stderr] 11 |                 fmtr.write_fmt(format_args!("| "));
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `a`
[INFO] [stderr]   --> examples/memory.rs:32:5
[INFO] [stderr]    |
[INFO] [stderr] 32 |     a: i32,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `b`
[INFO] [stderr]   --> examples/memory.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 |     b: i32
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> examples/memory.rs:11:17
[INFO] [stderr]    |
[INFO] [stderr] 11 |                 fmtr.write_fmt(format_args!("| "));
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "31c0031f7ceb7717f5c7dc27c99a7d24141061edc7aa15cb3197370a0b78c7f2"`
[INFO] running `"docker" "rm" "-f" "31c0031f7ceb7717f5c7dc27c99a7d24141061edc7aa15cb3197370a0b78c7f2"`
[INFO] [stdout] 31c0031f7ceb7717f5c7dc27c99a7d24141061edc7aa15cb3197370a0b78c7f2