[INFO] updating cached repository turnage/randf
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/turnage/randf
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/turnage/randf" "work/ex/beta-1.38-1/sources/1.37.0/gh/turnage/randf"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/turnage/randf'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/turnage/randf" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/turnage/randf"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/turnage/randf'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 1610969d3b51d90d94b1f25e367522715be8add1
[INFO] sha for GitHub repo turnage/randf: 1610969d3b51d90d94b1f25e367522715be8add1
[INFO] validating manifest of turnage/randf on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of turnage/randf on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing turnage/randf
[INFO] finished frobbing turnage/randf
[INFO] frobbed toml for turnage/randf written to work/ex/beta-1.38-1/sources/1.37.0/gh/turnage/randf/Cargo.toml
[INFO] started frobbing turnage/randf
[INFO] finished frobbing turnage/randf
[INFO] frobbed toml for turnage/randf written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/turnage/randf/Cargo.toml
[INFO] crate turnage/randf already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing turnage/randf against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/turnage/randf:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 47ac6b13c8e45f8f48e3c468d8711cd96832b82ae1afe17ad8f1b3387a6a6d12
[INFO] running `"docker" "start" "-a" "47ac6b13c8e45f8f48e3c468d8711cd96832b82ae1afe17ad8f1b3387a6a6d12"`
[INFO] [stderr]    Compiling vec_map v0.6.0
[INFO] [stderr]    Compiling meval v0.0.9
[INFO] [stderr]    Compiling aho-corasick v0.6.2
[INFO] [stderr]    Compiling clap v2.20.5
[INFO] [stderr]    Compiling regex v0.2.1
[INFO] [stderr]    Compiling randf v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]  --> src/main.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(slice_patterns, exclusive_range_pattern)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/id.rs:29:24
[INFO] [stderr]    |
[INFO] [stderr] 29 |                 i @ 'a'...'z' => Ok(ID { index: (i as u8) - A_OFFSET }),
[INFO] [stderr]    |                        ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(ellipsis_inclusive_range_patterns)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/id.rs:43:19
[INFO] [stderr]    |
[INFO] [stderr] 43 |     pub time: Box<Fn(usize) -> Result<usize, String>>,
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(usize) -> Result<usize, String>`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/id.rs:74:32
[INFO] [stderr]    |
[INFO] [stderr] 74 | fn floor_temporal_expr(te: Box<Fn(f64) -> f64>) -> Box<Fn(usize) -> Result<usize, String>> {
[INFO] [stderr]    |                                ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(f64) -> f64`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/id.rs:74:56
[INFO] [stderr]    |
[INFO] [stderr] 74 | fn floor_temporal_expr(te: Box<Fn(f64) -> f64>) -> Box<Fn(usize) -> Result<usize, String>> {
[INFO] [stderr]    |                                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(usize) -> Result<usize, String>`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: Could not compile `randf`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "47ac6b13c8e45f8f48e3c468d8711cd96832b82ae1afe17ad8f1b3387a6a6d12"`
[INFO] running `"docker" "rm" "-f" "47ac6b13c8e45f8f48e3c468d8711cd96832b82ae1afe17ad8f1b3387a6a6d12"`
[INFO] [stdout] 47ac6b13c8e45f8f48e3c468d8711cd96832b82ae1afe17ad8f1b3387a6a6d12