[INFO] updating cached repository nathanfaucett/rs-collection_traits [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/nathanfaucett/rs-collection_traits [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/nathanfaucett/rs-collection_traits" "work/ex/beta-1.38-1/sources/1.37.0/gh/nathanfaucett/rs-collection_traits"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/nathanfaucett/rs-collection_traits'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/nathanfaucett/rs-collection_traits" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/nathanfaucett/rs-collection_traits"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/nathanfaucett/rs-collection_traits'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 59414f0b0ae785ae07c665e7159c9fc4c82e6f95 [INFO] sha for GitHub repo nathanfaucett/rs-collection_traits: 59414f0b0ae785ae07c665e7159c9fc4c82e6f95 [INFO] validating manifest of nathanfaucett/rs-collection_traits 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 nathanfaucett/rs-collection_traits 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 nathanfaucett/rs-collection_traits [INFO] finished frobbing nathanfaucett/rs-collection_traits [INFO] frobbed toml for nathanfaucett/rs-collection_traits written to work/ex/beta-1.38-1/sources/1.37.0/gh/nathanfaucett/rs-collection_traits/Cargo.toml [INFO] started frobbing nathanfaucett/rs-collection_traits [INFO] finished frobbing nathanfaucett/rs-collection_traits [INFO] frobbed toml for nathanfaucett/rs-collection_traits written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/nathanfaucett/rs-collection_traits/Cargo.toml [INFO] crate nathanfaucett/rs-collection_traits 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 nathanfaucett/rs-collection_traits 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-0/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/nathanfaucett/rs-collection_traits:/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] 1ad1e9a10d41f0103f233b7cb5a54eac1bc1ae40b225f6163de69b54e91b3e87 [INFO] running `"docker" "start" "-a" "1ad1e9a10d41f0103f233b7cb5a54eac1bc1ae40b225f6163de69b54e91b3e87"` [INFO] [stderr] Compiling collection_traits v0.1.0 (/opt/crater/workdir) [INFO] [stderr] error[E0432]: unresolved import `alloc::btree_map` [INFO] [stderr] --> src/btree_map.rs:1:12 [INFO] [stderr] | [INFO] [stderr] 1 | use alloc::btree_map::{BTreeMap, Iter, IterMut}; [INFO] [stderr] | ^^^^^^^^^ could not find `btree_map` in `alloc` [INFO] [stderr] [INFO] [stderr] error[E0432]: unresolved import `alloc::btree_set` [INFO] [stderr] --> src/btree_set.rs:1:12 [INFO] [stderr] | [INFO] [stderr] 1 | use alloc::btree_set::BTreeSet; [INFO] [stderr] | ^^^^^^^^^ could not find `btree_set` in `alloc` [INFO] [stderr] [INFO] [stderr] error[E0432]: unresolved imports `alloc::linked_list`, `alloc::linked_list` [INFO] [stderr] --> src/linked_list.rs:1:26 [INFO] [stderr] | [INFO] [stderr] 1 | use alloc::linked_list::{self, LinkedList}; [INFO] [stderr] | ^^^^^^^^^^^ ^^^^ no `linked_list` in the root [INFO] [stderr] | | [INFO] [stderr] | could not find `linked_list` in `alloc` [INFO] [stderr] [INFO] [stderr] error[E0412]: cannot find type `Iter` in module `linked_list` [INFO] [stderr] --> src/linked_list.rs:125:30 [INFO] [stderr] | [INFO] [stderr] 125 | type Iter = linked_list::Iter<'a, T>; [INFO] [stderr] | ^^^^ not found in `linked_list` [INFO] [stderr] help: possible candidates are found in other modules, you can import them into scope [INFO] [stderr] | [INFO] [stderr] 1 | use core::slice::Iter; [INFO] [stderr] | [INFO] [stderr] 1 | use std::collections::binary_heap::Iter; [INFO] [stderr] | [INFO] [stderr] 1 | use std::collections::btree_map::Iter; [INFO] [stderr] | [INFO] [stderr] 1 | use std::collections::btree_set::Iter; [INFO] [stderr] | [INFO] [stderr] and 9 other candidates [INFO] [stderr] [INFO] [stderr] error[E0412]: cannot find type `IterMut` in module `linked_list` [INFO] [stderr] --> src/linked_list.rs:134:33 [INFO] [stderr] | [INFO] [stderr] 134 | type IterMut = linked_list::IterMut<'a, T>; [INFO] [stderr] | ^^^^^^^ not found in `linked_list` [INFO] [stderr] help: possible candidates are found in other modules, you can import them into scope [INFO] [stderr] | [INFO] [stderr] 1 | use core::slice::IterMut; [INFO] [stderr] | [INFO] [stderr] 1 | use std::collections::btree_map::IterMut; [INFO] [stderr] | [INFO] [stderr] 1 | use std::collections::hash_map::IterMut; [INFO] [stderr] | [INFO] [stderr] 1 | use std::collections::linked_list::IterMut; [INFO] [stderr] | [INFO] [stderr] and 4 other candidates [INFO] [stderr] [INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel [INFO] [stderr] --> src/lib.rs:1:1 [INFO] [stderr] | [INFO] [stderr] 1 | #![feature(alloc)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel [INFO] [stderr] --> src/lib.rs:2:1 [INFO] [stderr] | [INFO] [stderr] 2 | #![feature(custom_attribute)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] error[E0207]: the type parameter `K` is not constrained by the impl trait, self type, or predicates [INFO] [stderr] --> src/btree_map.rs:8:6 [INFO] [stderr] | [INFO] [stderr] 8 | impl Collection for BTreeMap [INFO] [stderr] | ^ unconstrained type parameter [INFO] [stderr] [INFO] [stderr] error[E0207]: the type parameter `V` is not constrained by the impl trait, self type, or predicates [INFO] [stderr] --> src/btree_map.rs:8:9 [INFO] [stderr] | [INFO] [stderr] 8 | impl Collection for BTreeMap [INFO] [stderr] | ^ unconstrained type parameter [INFO] [stderr] [INFO] [stderr] error[E0207]: the type parameter `K` is not constrained by the impl trait, self type, or predicates [INFO] [stderr] --> src/btree_map.rs:17:6 [INFO] [stderr] | [INFO] [stderr] 17 | impl CollectionMut for BTreeMap [INFO] [stderr] | ^ unconstrained type parameter [INFO] [stderr] [INFO] [stderr] error[E0207]: the type parameter `V` is not constrained by the impl trait, self type, or predicates [INFO] [stderr] --> src/btree_map.rs:17:9 [INFO] [stderr] | [INFO] [stderr] 17 | impl CollectionMut for BTreeMap [INFO] [stderr] | ^ unconstrained type parameter [INFO] [stderr] [INFO] [stderr] error[E0207]: the type parameter `K` is not constrained by the impl trait, self type, or predicates [INFO] [stderr] --> src/btree_map.rs:37:10 [INFO] [stderr] | [INFO] [stderr] 37 | impl<'a, K, Q: ?Sized, V> RemoveMut<&'a Q> for BTreeMap [INFO] [stderr] | ^ unconstrained type parameter [INFO] [stderr] [INFO] [stderr] error[E0207]: the type parameter `V` is not constrained by the impl trait, self type, or predicates [INFO] [stderr] --> src/btree_map.rs:37:24 [INFO] [stderr] | [INFO] [stderr] 37 | impl<'a, K, Q: ?Sized, V> RemoveMut<&'a Q> for BTreeMap [INFO] [stderr] | ^ unconstrained type parameter [INFO] [stderr] [INFO] [stderr] error[E0207]: the type parameter `K` is not constrained by the impl trait, self type, or predicates [INFO] [stderr] --> src/btree_map.rs:49:10 [INFO] [stderr] | [INFO] [stderr] 49 | impl<'a, K, Q: ?Sized, V> Get<&'a Q> for BTreeMap [INFO] [stderr] | ^ unconstrained type parameter [INFO] [stderr] [INFO] [stderr] error[E0207]: the type parameter `V` is not constrained by the impl trait, self type, or predicates [INFO] [stderr] --> src/btree_map.rs:49:24 [INFO] [stderr] | [INFO] [stderr] 49 | impl<'a, K, Q: ?Sized, V> Get<&'a Q> for BTreeMap [INFO] [stderr] | ^ unconstrained type parameter [INFO] [stderr] [INFO] [stderr] error[E0207]: the type parameter `K` is not constrained by the impl trait, self type, or predicates [INFO] [stderr] --> src/btree_map.rs:60:10 [INFO] [stderr] | [INFO] [stderr] 60 | impl<'a, K, Q: ?Sized, V> GetMut<&'a Q> for BTreeMap [INFO] [stderr] | ^ unconstrained type parameter [INFO] [stderr] [INFO] [stderr] error[E0207]: the type parameter `V` is not constrained by the impl trait, self type, or predicates [INFO] [stderr] --> src/btree_map.rs:60:24 [INFO] [stderr] | [INFO] [stderr] 60 | impl<'a, K, Q: ?Sized, V> GetMut<&'a Q> for BTreeMap [INFO] [stderr] | ^ unconstrained type parameter [INFO] [stderr] [INFO] [stderr] error[E0207]: the type parameter `V` is not constrained by the impl trait, self type, or predicates [INFO] [stderr] --> src/btree_set.rs:6:6 [INFO] [stderr] | [INFO] [stderr] 6 | impl Collection for BTreeSet [INFO] [stderr] | ^ unconstrained type parameter [INFO] [stderr] [INFO] [stderr] error[E0207]: the type parameter `V` is not constrained by the impl trait, self type, or predicates [INFO] [stderr] --> src/btree_set.rs:15:6 [INFO] [stderr] | [INFO] [stderr] 15 | impl CollectionMut for BTreeSet [INFO] [stderr] | ^ unconstrained type parameter [INFO] [stderr] [INFO] [stderr] error[E0207]: the type parameter `T` is not constrained by the impl trait, self type, or predicates [INFO] [stderr] --> src/linked_list.rs:6:6 [INFO] [stderr] | [INFO] [stderr] 6 | impl Collection for LinkedList { [INFO] [stderr] | ^ unconstrained type parameter [INFO] [stderr] [INFO] [stderr] error[E0207]: the type parameter `T` is not constrained by the impl trait, self type, or predicates [INFO] [stderr] --> src/linked_list.rs:11:6 [INFO] [stderr] | [INFO] [stderr] 11 | impl CollectionMut for LinkedList { [INFO] [stderr] | ^ unconstrained type parameter [INFO] [stderr] [INFO] [stderr] error[E0207]: the type parameter `T` is not constrained by the impl trait, self type, or predicates [INFO] [stderr] --> src/linked_list.rs:91:6 [INFO] [stderr] | [INFO] [stderr] 91 | impl RemoveMut for LinkedList { [INFO] [stderr] | ^ unconstrained type parameter [INFO] [stderr] [INFO] [stderr] error[E0207]: the type parameter `T` is not constrained by the impl trait, self type, or predicates [INFO] [stderr] --> src/linked_list.rs:109:6 [INFO] [stderr] | [INFO] [stderr] 109 | impl Get for LinkedList { [INFO] [stderr] | ^ unconstrained type parameter [INFO] [stderr] [INFO] [stderr] error[E0207]: the type parameter `T` is not constrained by the impl trait, self type, or predicates [INFO] [stderr] --> src/linked_list.rs:117:6 [INFO] [stderr] | [INFO] [stderr] 117 | impl GetMut for LinkedList { [INFO] [stderr] | ^ unconstrained type parameter [INFO] [stderr] [INFO] [stderr] error: aborting due to 24 previous errors [INFO] [stderr] [INFO] [stderr] Some errors have detailed explanations: E0207, E0412, E0432, E0554. [INFO] [stderr] For more information about an error, try `rustc --explain E0207`. [INFO] [stderr] error: Could not compile `collection_traits`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `"docker" "inspect" "1ad1e9a10d41f0103f233b7cb5a54eac1bc1ae40b225f6163de69b54e91b3e87"` [INFO] running `"docker" "rm" "-f" "1ad1e9a10d41f0103f233b7cb5a54eac1bc1ae40b225f6163de69b54e91b3e87"` [INFO] [stdout] 1ad1e9a10d41f0103f233b7cb5a54eac1bc1ae40b225f6163de69b54e91b3e87