[INFO] updating cached repository emilio/local-search-algorithms
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/emilio/local-search-algorithms
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/emilio/local-search-algorithms" "work/ex/beta-1.38-1/sources/1.37.0/gh/emilio/local-search-algorithms"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/emilio/local-search-algorithms'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/emilio/local-search-algorithms" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/emilio/local-search-algorithms"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/emilio/local-search-algorithms'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 566736597ff5adccdf578bdfbd5582a36527b70e
[INFO] sha for GitHub repo emilio/local-search-algorithms: 566736597ff5adccdf578bdfbd5582a36527b70e
[INFO] validating manifest of emilio/local-search-algorithms 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 emilio/local-search-algorithms 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 emilio/local-search-algorithms
[INFO] finished frobbing emilio/local-search-algorithms
[INFO] frobbed toml for emilio/local-search-algorithms written to work/ex/beta-1.38-1/sources/1.37.0/gh/emilio/local-search-algorithms/Cargo.toml
[INFO] started frobbing emilio/local-search-algorithms
[INFO] finished frobbing emilio/local-search-algorithms
[INFO] frobbed toml for emilio/local-search-algorithms written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/emilio/local-search-algorithms/Cargo.toml
[INFO] crate emilio/local-search-algorithms 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] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing emilio/local-search-algorithms 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-7/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/emilio/local-search-algorithms:/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] 56351d3df46954222a96d88ee81dfe997c77ef0180c4adb69ae0059bfd409101
[INFO] running `"docker" "start" "-a" "56351d3df46954222a96d88ee81dfe997c77ef0180c4adb69ae0059bfd409101"`
[INFO] [stderr]    Compiling local-search-algorithms v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.41s
[INFO] running `"docker" "inspect" "56351d3df46954222a96d88ee81dfe997c77ef0180c4adb69ae0059bfd409101"`
[INFO] running `"docker" "rm" "-f" "56351d3df46954222a96d88ee81dfe997c77ef0180c4adb69ae0059bfd409101"`
[INFO] [stdout] 56351d3df46954222a96d88ee81dfe997c77ef0180c4adb69ae0059bfd409101
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/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/emilio/local-search-algorithms:/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" "test" "--frozen" "--no-run"`
[INFO] [stdout] 7a5a509734bd6a14dc60af02552930fa6573035b15a6e1167792b46838195d8a
[INFO] running `"docker" "start" "-a" "7a5a509734bd6a14dc60af02552930fa6573035b15a6e1167792b46838195d8a"`
[INFO] [stderr]    Compiling local-search-algorithms v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0599]: no method named `can_position` found for type `constraint_propagation::ConstraintPropagation` in the current scope
[INFO] [stderr]    --> src/main.rs:148:31
[INFO] [stderr]     |
[INFO] [stderr] 73  |     pub struct ConstraintPropagation {
[INFO] [stderr]     |     -------------------------------- method `can_position` not found for this
[INFO] [stderr] ...
[INFO] [stderr] 148 |             assert!(challenge.can_position(pos(0, 0), pos(0, 0)).is_err());
[INFO] [stderr]     |                               ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `can_position` found for type `constraint_propagation::ConstraintPropagation` in the current scope
[INFO] [stderr]    --> src/main.rs:149:31
[INFO] [stderr]     |
[INFO] [stderr] 73  |     pub struct ConstraintPropagation {
[INFO] [stderr]     |     -------------------------------- method `can_position` not found for this
[INFO] [stderr] ...
[INFO] [stderr] 149 |             assert!(challenge.can_position(pos(0, 1), pos(0, 0)).is_err());
[INFO] [stderr]     |                               ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `can_position` found for type `constraint_propagation::ConstraintPropagation` in the current scope
[INFO] [stderr]    --> src/main.rs:150:31
[INFO] [stderr]     |
[INFO] [stderr] 73  |     pub struct ConstraintPropagation {
[INFO] [stderr]     |     -------------------------------- method `can_position` not found for this
[INFO] [stderr] ...
[INFO] [stderr] 150 |             assert!(challenge.can_position(pos(1, 0), pos(0, 0)).is_err());
[INFO] [stderr]     |                               ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `can_position` found for type `constraint_propagation::ConstraintPropagation` in the current scope
[INFO] [stderr]    --> src/main.rs:151:31
[INFO] [stderr]     |
[INFO] [stderr] 73  |     pub struct ConstraintPropagation {
[INFO] [stderr]     |     -------------------------------- method `can_position` not found for this
[INFO] [stderr] ...
[INFO] [stderr] 151 |             assert!(challenge.can_position(pos(1, 1), pos(5, 5)).is_err());
[INFO] [stderr]     |                               ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `can_position` found for type `constraint_propagation::ConstraintPropagation` in the current scope
[INFO] [stderr]    --> src/main.rs:152:31
[INFO] [stderr]     |
[INFO] [stderr] 73  |     pub struct ConstraintPropagation {
[INFO] [stderr]     |     -------------------------------- method `can_position` not found for this
[INFO] [stderr] ...
[INFO] [stderr] 152 |             assert!(challenge.can_position(pos(3, 2), pos(2, 3)).is_err());
[INFO] [stderr]     |                               ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 5 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0599`.
[INFO] [stderr] error: Could not compile `local-search-algorithms`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "7a5a509734bd6a14dc60af02552930fa6573035b15a6e1167792b46838195d8a"`
[INFO] running `"docker" "rm" "-f" "7a5a509734bd6a14dc60af02552930fa6573035b15a6e1167792b46838195d8a"`
[INFO] [stdout] 7a5a509734bd6a14dc60af02552930fa6573035b15a6e1167792b46838195d8a