[INFO] updating cached repository martindevans/Intent
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/martindevans/Intent
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/martindevans/Intent" "work/ex/beta-1.38-1/sources/1.37.0/gh/martindevans/Intent"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/martindevans/Intent'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/martindevans/Intent" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/martindevans/Intent"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/martindevans/Intent'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e770ebb5eb62d6a8ad5ef166740c45ee20376d2e
[INFO] sha for GitHub repo martindevans/Intent: e770ebb5eb62d6a8ad5ef166740c45ee20376d2e
[INFO] validating manifest of martindevans/Intent 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 martindevans/Intent 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 martindevans/Intent
[INFO] finished frobbing martindevans/Intent
[INFO] frobbed toml for martindevans/Intent written to work/ex/beta-1.38-1/sources/1.37.0/gh/martindevans/Intent/Cargo.toml
[INFO] started frobbing martindevans/Intent
[INFO] finished frobbing martindevans/Intent
[INFO] frobbed toml for martindevans/Intent written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/martindevans/Intent/Cargo.toml
[INFO] crate martindevans/Intent 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 martindevans/Intent against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/martindevans/Intent:/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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 1bacf45037122f571661bbbdcefc28ba457c712e60b8b94fb2a4dec601f1091e
[INFO] running `"docker" "start" "-a" "1bacf45037122f571661bbbdcefc28ba457c712e60b8b94fb2a4dec601f1091e"`
[INFO] [stderr]    Compiling intent v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/lib.rs:141:47
[INFO] [stderr]     |
[INFO] [stderr] 141 |                   Cell(ref b, ref c) => Rc::new(eval_cell(
[INFO] [stderr]     |  _______________________________________________^
[INFO] [stderr] 142 | |                     &eval_cell(&a, &b),
[INFO] [stderr] 143 | |                     &eval_cell(&a, &c)
[INFO] [stderr] 144 | |                 ))
[INFO] [stderr]     | |_________________^ expected enum `Value`, found struct `std::rc::Rc`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `Value`
[INFO] [stderr]                found type `std::rc::Rc<Value>`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/lib.rs:152:60
[INFO] [stderr]     |
[INFO] [stderr] 152 |                 (Some(0), Some((ref b, ref c))) => Rc::new(b),
[INFO] [stderr]     |                                                            ^ expected enum `Value`, found reference
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `Value`
[INFO] [stderr]                found type `&std::rc::Rc<Value>`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/lib.rs:153:60
[INFO] [stderr]     |
[INFO] [stderr] 153 |                 (Some(1), Some((ref b, ref c))) => Rc::new(c),
[INFO] [stderr]     |                                                            ^ expected enum `Value`, found reference
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `Value`
[INFO] [stderr]                found type `&std::rc::Rc<Value>`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0308`.
[INFO] [stderr] error: Could not compile `intent`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "1bacf45037122f571661bbbdcefc28ba457c712e60b8b94fb2a4dec601f1091e"`
[INFO] running `"docker" "rm" "-f" "1bacf45037122f571661bbbdcefc28ba457c712e60b8b94fb2a4dec601f1091e"`
[INFO] [stdout] 1bacf45037122f571661bbbdcefc28ba457c712e60b8b94fb2a4dec601f1091e