[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/beta-1.37-6/sources/1.36.0/gh/gregtatum/rust-sketches"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/gregtatum/rust-sketches'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/gregtatum/rust-sketches" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/gregtatum/rust-sketches"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/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 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of gregtatum/rust-sketches on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "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/beta-1.37-6/sources/1.36.0/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/beta-1.37-6/sources/beta-2019-07-23/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" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing gregtatum/rust-sketches against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/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=warn" "-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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] 676b169d2d0ffe438ddc5a42c6357794b210051c65d7042f3fb5669c680dc894
[INFO] running `"docker" "start" "-a" "676b169d2d0ffe438ddc5a42c6357794b210051c65d7042f3fb5669c680dc894"`
[INFO] [stderr]    Compiling rust-memory v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.85s
[INFO] running `"docker" "inspect" "676b169d2d0ffe438ddc5a42c6357794b210051c65d7042f3fb5669c680dc894"`
[INFO] running `"docker" "rm" "-f" "676b169d2d0ffe438ddc5a42c6357794b210051c65d7042f3fb5669c680dc894"`
[INFO] [stdout] 676b169d2d0ffe438ddc5a42c6357794b210051c65d7042f3fb5669c680dc894
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/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=warn" "-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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 9f691339299e283a8c4674b5f42b9169dd7d9ec4d7fbcc453136e0f4734f80b1
[INFO] running `"docker" "start" "-a" "9f691339299e283a8c4674b5f42b9169dd7d9ec4d7fbcc453136e0f4734f80b1"`
[INFO] [stderr]    Compiling rust-memory v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error: expected type, found `0`
[INFO] [stderr]   --> examples/macro-expansion.rs:17:17
[INFO] [stderr]    |
[INFO] [stderr] 17 |     cb![Box:new(0), Box::new(1)]
[INFO] [stderr]    |            -    ^ expecting a type here because of type ascription
[INFO] [stderr]    |            |
[INFO] [stderr]    |            help: maybe you meant to write a path separator here: `::`
[INFO] [stderr] error[E0601]: `main` function not found in crate `generic_traits`
[INFO] [stderr] 
[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: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `rust-memory`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: Could not compile `rust-memory`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[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" "9f691339299e283a8c4674b5f42b9169dd7d9ec4d7fbcc453136e0f4734f80b1"`
[INFO] running `"docker" "rm" "-f" "9f691339299e283a8c4674b5f42b9169dd7d9ec4d7fbcc453136e0f4734f80b1"`
[INFO] [stdout] 9f691339299e283a8c4674b5f42b9169dd7d9ec4d7fbcc453136e0f4734f80b1