[INFO] updating cached repository Craig-Macomber/exist
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Craig-Macomber/exist
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Craig-Macomber/exist" "work/ex/pr-60944/sources/master#589beb979c0f1a9736e02e578913db88398c3ba5/gh/Craig-Macomber/exist"`
[INFO] [stderr] Cloning into 'work/ex/pr-60944/sources/master#589beb979c0f1a9736e02e578913db88398c3ba5/gh/Craig-Macomber/exist'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Craig-Macomber/exist" "work/ex/pr-60944/sources/try#42445ded8fd34235a676755cb5d079658ed51f6a/gh/Craig-Macomber/exist"`
[INFO] [stderr] Cloning into 'work/ex/pr-60944/sources/try#42445ded8fd34235a676755cb5d079658ed51f6a/gh/Craig-Macomber/exist'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 139a0bf6d1efdafdc8d4226edc21b6f8a99808eb
[INFO] sha for GitHub repo Craig-Macomber/exist: 139a0bf6d1efdafdc8d4226edc21b6f8a99808eb
[INFO] validating manifest of Craig-Macomber/exist on toolchain master#589beb979c0f1a9736e02e578913db88398c3ba5
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+589beb979c0f1a9736e02e578913db88398c3ba5-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of Craig-Macomber/exist on toolchain try#42445ded8fd34235a676755cb5d079658ed51f6a
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+42445ded8fd34235a676755cb5d079658ed51f6a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing Craig-Macomber/exist
[INFO] finished frobbing Craig-Macomber/exist
[INFO] frobbed toml for Craig-Macomber/exist written to work/ex/pr-60944/sources/master#589beb979c0f1a9736e02e578913db88398c3ba5/gh/Craig-Macomber/exist/Cargo.toml
[INFO] started frobbing Craig-Macomber/exist
[INFO] finished frobbing Craig-Macomber/exist
[INFO] frobbed toml for Craig-Macomber/exist written to work/ex/pr-60944/sources/try#42445ded8fd34235a676755cb5d079658ed51f6a/gh/Craig-Macomber/exist/Cargo.toml
[INFO] crate Craig-Macomber/exist already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+589beb979c0f1a9736e02e578913db88398c3ba5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+42445ded8fd34235a676755cb5d079658ed51f6a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking Craig-Macomber/exist against master#589beb979c0f1a9736e02e578913db88398c3ba5 for pr-60944
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60944/worker-0/master#589beb979c0f1a9736e02e578913db88398c3ba5:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60944/sources/master#589beb979c0f1a9736e02e578913db88398c3ba5/gh/Craig-Macomber/exist:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/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" "+589beb979c0f1a9736e02e578913db88398c3ba5-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 71aafc93f0f1e32319cc0525d9a5d74d093456a36e810a4731a55465d204328a
[INFO] running `"docker" "start" "-a" "71aafc93f0f1e32319cc0525d9a5d74d093456a36e810a4731a55465d204328a"`
[INFO] [stderr]     Checking byteorder v1.2.7
[INFO] [stderr]     Checking crypto-mac v0.7.0
[INFO] [stderr]     Checking serde_json v1.0.34
[INFO] [stderr]     Checking blake2 v0.8.0
[INFO] [stderr]     Checking bincode v1.0.1
[INFO] [stderr]     Checking serde_cbor v0.9.0
[INFO] [stderr]     Checking exist v0.1.2 (/opt/crater/workdir)
[INFO] [stderr] error: ambiguous associated item
[INFO] [stderr]   --> src/data_models/leaf_tree.rs:34:37
[INFO] [stderr]    |
[INFO] [stderr] 34 |         fn visit<V: Visitor<Value = Self::Value>>(&self, v: &mut V) {
[INFO] [stderr]    |                                     ^^^^^^^^^^^ help: use fully-qualified syntax: `<data_models::leaf_tree::concrete::Concrete<Value> as Trait>::Value`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[deny(ambiguous_associated_items)] on by default
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #57644 <https://github.com/rust-lang/rust/issues/57644>
[INFO] [stderr] note: `Value` could refer to variant defined here
[INFO] [stderr]   --> src/data_models/leaf_tree.rs:26:9
[INFO] [stderr]    |
[INFO] [stderr] 26 |         Value(V),
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr] note: `Value` could also refer to associated type defined here
[INFO] [stderr]   --> src/data_models/mod.rs:14:15
[INFO] [stderr]    |
[INFO] [stderr] 14 |             $(type $Items;)*
[INFO] [stderr]    |               ^^^^^^^^^^^^
[INFO] [stderr]    | 
[INFO] [stderr]   ::: src/data_models/leaf_tree.rs:7:1
[INFO] [stderr]    |
[INFO] [stderr] 7  | Visitable!(View, Visitor, Value);
[INFO] [stderr]    | --------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `exist`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: ambiguous associated item
[INFO] [stderr]   --> src/data_models/leaf_tree.rs:34:37
[INFO] [stderr]    |
[INFO] [stderr] 34 |         fn visit<V: Visitor<Value = Self::Value>>(&self, v: &mut V) {
[INFO] [stderr]    |                                     ^^^^^^^^^^^ help: use fully-qualified syntax: `<data_models::leaf_tree::concrete::Concrete<Value> as Trait>::Value`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[deny(ambiguous_associated_items)] on by default
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #57644 <https://github.com/rust-lang/rust/issues/57644>
[INFO] [stderr] note: `Value` could refer to variant defined here
[INFO] [stderr]   --> src/data_models/leaf_tree.rs:26:9
[INFO] [stderr]    |
[INFO] [stderr] 26 |         Value(V),
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr] note: `Value` could also refer to associated type defined here
[INFO] [stderr]   --> src/data_models/mod.rs:14:15
[INFO] [stderr]    |
[INFO] [stderr] 14 |             $(type $Items;)*
[INFO] [stderr]    |               ^^^^^^^^^^^^
[INFO] [stderr]    | 
[INFO] [stderr]   ::: src/data_models/leaf_tree.rs:7:1
[INFO] [stderr]    |
[INFO] [stderr] 7  | Visitable!(View, Visitor, Value);
[INFO] [stderr]    | --------------------------------- in this macro invocation
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `exist`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "71aafc93f0f1e32319cc0525d9a5d74d093456a36e810a4731a55465d204328a"`
[INFO] running `"docker" "rm" "-f" "71aafc93f0f1e32319cc0525d9a5d74d093456a36e810a4731a55465d204328a"`
[INFO] [stdout] 71aafc93f0f1e32319cc0525d9a5d74d093456a36e810a4731a55465d204328a