[INFO] updating cached repository https://github.com/nathanfaucett/rs-collection_traits
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 59414f0b0ae785ae07c665e7159c9fc4c82e6f95
[INFO] checking nathanfaucett/rs-collection_traits against master#bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc for pr-70917
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnathanfaucett%2Frs-collection_traits" "/workspace/builds/worker-2/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nathanfaucett/rs-collection_traits on toolchain bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/nathanfaucett/rs-collection_traits
[INFO] finished tweaking git repo https://github.com/nathanfaucett/rs-collection_traits
[INFO] tweaked toml for git repo https://github.com/nathanfaucett/rs-collection_traits written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/nathanfaucett/rs-collection_traits already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 22ef03ad0fcdbfc3298aadc876a80843db0551f5c0f245eed218719873a079bb
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "22ef03ad0fcdbfc3298aadc876a80843db0551f5c0f245eed218719873a079bb"`
[INFO] [stderr]     Checking collection_traits v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0557]: feature has been removed
[INFO] [stderr]  --> src/lib.rs:2:12
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(custom_attribute)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^ feature has been removed
[INFO] [stderr]   |
[INFO] [stderr]   = note: removed in favor of `#![register_tool]` and `#![register_attr]`
[INFO] [stderr] 
[INFO] [stderr] error[E0557]: feature has been removed
[INFO] [stderr]  --> src/lib.rs:2:12
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(custom_attribute)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^ feature has been removed
[INFO] [stderr]   |
[INFO] [stderr]   = note: removed in favor of `#![register_tool]` and `#![register_attr]`
[INFO] [stderr] 
[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]     |
[INFO] [stderr] help: possible candidates are found in other modules, you can import them into scope
[INFO] [stderr]     |
[INFO] [stderr] 1   | use alloc::collections::binary_heap::Iter;
[INFO] [stderr]     |
[INFO] [stderr] 1   | use alloc::collections::btree_map::Iter;
[INFO] [stderr]     |
[INFO] [stderr] 1   | use alloc::collections::btree_set::Iter;
[INFO] [stderr]     |
[INFO] [stderr] 1   | use alloc::collections::linked_list::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]     |
[INFO] [stderr] help: possible candidates are found in other modules, you can import them into scope
[INFO] [stderr]     |
[INFO] [stderr] 1   | use alloc::collections::btree_map::IterMut;
[INFO] [stderr]     |
[INFO] [stderr] 1   | use alloc::collections::linked_list::IterMut;
[INFO] [stderr]     |
[INFO] [stderr] 1   | use alloc::collections::vec_deque::IterMut;
[INFO] [stderr]     |
[INFO] [stderr] 1   | use alloc::slice::IterMut;
[INFO] [stderr]     |
[INFO] [stderr]       and 4 other candidates
[INFO] [stderr] 
[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]     |
[INFO] [stderr] help: possible candidates are found in other modules, you can import them into scope
[INFO] [stderr]     |
[INFO] [stderr] 1   | use alloc::collections::binary_heap::Iter;
[INFO] [stderr]     |
[INFO] [stderr] 1   | use alloc::collections::btree_map::Iter;
[INFO] [stderr]     |
[INFO] [stderr] 1   | use alloc::collections::btree_set::Iter;
[INFO] [stderr]     |
[INFO] [stderr] 1   | use alloc::collections::linked_list::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]     |
[INFO] [stderr] help: possible candidates are found in other modules, you can import them into scope
[INFO] [stderr]     |
[INFO] [stderr] 1   | use alloc::collections::btree_map::IterMut;
[INFO] [stderr]     |
[INFO] [stderr] 1   | use alloc::collections::linked_list::IterMut;
[INFO] [stderr]     |
[INFO] [stderr] 1   | use alloc::collections::vec_deque::IterMut;
[INFO] [stderr]     |
[INFO] [stderr] 1   | use alloc::slice::IterMut;
[INFO] [stderr]     |
[INFO] [stderr]       and 4 other candidates
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 6 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0412, E0432, E0557.
[INFO] [stderr] For more information about an error, try `rustc --explain E0412`.
[INFO] [stderr] error: could not compile `collection_traits`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: aborting due to 6 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0412, E0432, E0557.
[INFO] [stderr] For more information about an error, try `rustc --explain E0412`.
[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" "22ef03ad0fcdbfc3298aadc876a80843db0551f5c0f245eed218719873a079bb"`
[INFO] running `"docker" "rm" "-f" "22ef03ad0fcdbfc3298aadc876a80843db0551f5c0f245eed218719873a079bb"`
[INFO] [stdout] 22ef03ad0fcdbfc3298aadc876a80843db0551f5c0f245eed218719873a079bb
