[INFO] cloning repository nathanfaucett/rs-lexer
[INFO] running `"git" "clone" "--bare" "git://github.com/nathanfaucett/rs-lexer.git" "work/cache/sources/gh/nathanfaucett/rs-lexer"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/nathanfaucett/rs-lexer'...
[INFO] running `"git" "clone" "work/cache/sources/gh/nathanfaucett/rs-lexer" "work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/gh/nathanfaucett/rs-lexer"`
[INFO] [stderr] Cloning into 'work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/gh/nathanfaucett/rs-lexer'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/nathanfaucett/rs-lexer" "work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/nathanfaucett/rs-lexer"`
[INFO] [stderr] Cloning into 'work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/nathanfaucett/rs-lexer'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 4f76581633a3f655cd910d9a25519aa63704574d
[INFO] sha for GitHub repo nathanfaucett/rs-lexer: 4f76581633a3f655cd910d9a25519aa63704574d
[INFO] validating manifest of nathanfaucett/rs-lexer on toolchain master#9f06855064ed06a50c496577b21ca50f92a2e67d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of nathanfaucett/rs-lexer on toolchain try#d3301713b54af69ca9de941a8c6b0d8287dbd6df
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing nathanfaucett/rs-lexer
[INFO] finished frobbing nathanfaucett/rs-lexer
[INFO] frobbed toml for nathanfaucett/rs-lexer written to work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/gh/nathanfaucett/rs-lexer/Cargo.toml
[INFO] started frobbing nathanfaucett/rs-lexer
[INFO] finished frobbing nathanfaucett/rs-lexer
[INFO] frobbed toml for nathanfaucett/rs-lexer written to work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/nathanfaucett/rs-lexer/Cargo.toml
[INFO] crate nathanfaucett/rs-lexer already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking nathanfaucett/rs-lexer against try#d3301713b54af69ca9de941a8c6b0d8287dbd6df for pr-61874
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61874/worker-0/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/nathanfaucett/rs-lexer:/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=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" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 54fea50f8defac931fb52bc4c8efce4672114c6b1991ec7a603b6998f5615aa6
[INFO] running `"docker" "start" "-a" "54fea50f8defac931fb52bc4c8efce4672114c6b1991ec7a603b6998f5615aa6"`
[INFO] [stderr]     Checking collection_traits v0.1.0 (https://github.com/nathanfaucett/rs-collection_traits.git#fe0ed3ab)
[INFO] [stderr] error[E0432]: unresolved imports `alloc::linked_list`, `alloc::linked_list`
[INFO] [stderr]  --> /opt/crater/cargo-home/git/checkouts/rs-collection_traits-dca7cc2c0ed7a0a9/fe0ed3a/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]    --> /opt/crater/cargo-home/git/checkouts/rs-collection_traits-dca7cc2c0ed7a0a9/fe0ed3a/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]    --> /opt/crater/cargo-home/git/checkouts/rs-collection_traits-dca7cc2c0ed7a0a9/fe0ed3a/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[E0207]: the type parameter `T` is not constrained by the impl trait, self type, or predicates
[INFO] [stderr]  --> /opt/crater/cargo-home/git/checkouts/rs-collection_traits-dca7cc2c0ed7a0a9/fe0ed3a/src/linked_list.rs:6:6
[INFO] [stderr]   |
[INFO] [stderr] 6 | impl<T> Collection for LinkedList<T> {
[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]   --> /opt/crater/cargo-home/git/checkouts/rs-collection_traits-dca7cc2c0ed7a0a9/fe0ed3a/src/linked_list.rs:11:6
[INFO] [stderr]    |
[INFO] [stderr] 11 | impl<T> CollectionMut for LinkedList<T> {
[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]   --> /opt/crater/cargo-home/git/checkouts/rs-collection_traits-dca7cc2c0ed7a0a9/fe0ed3a/src/linked_list.rs:91:6
[INFO] [stderr]    |
[INFO] [stderr] 91 | impl<T> RemoveMut<usize> for LinkedList<T> {
[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]    --> /opt/crater/cargo-home/git/checkouts/rs-collection_traits-dca7cc2c0ed7a0a9/fe0ed3a/src/linked_list.rs:109:6
[INFO] [stderr]     |
[INFO] [stderr] 109 | impl<T> Get<usize> for LinkedList<T> {
[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]    --> /opt/crater/cargo-home/git/checkouts/rs-collection_traits-dca7cc2c0ed7a0a9/fe0ed3a/src/linked_list.rs:117:6
[INFO] [stderr]     |
[INFO] [stderr] 117 | impl<T> GetMut<usize> for LinkedList<T> {
[INFO] [stderr]     |      ^ unconstrained type parameter
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 8 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0207, E0412, E0432.
[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" "54fea50f8defac931fb52bc4c8efce4672114c6b1991ec7a603b6998f5615aa6"`
[INFO] running `"docker" "rm" "-f" "54fea50f8defac931fb52bc4c8efce4672114c6b1991ec7a603b6998f5615aa6"`
[INFO] [stdout] 54fea50f8defac931fb52bc4c8efce4672114c6b1991ec7a603b6998f5615aa6