[INFO] cloning repository https://github.com/nathanfaucett/rs-collection_traits
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nathanfaucett/rs-collection_traits" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnathanfaucett%2Frs-collection_traits", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnathanfaucett%2Frs-collection_traits'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 59414f0b0ae785ae07c665e7159c9fc4c82e6f95
[INFO] building nathanfaucett/rs-collection_traits against master#881c1ac408d93bb7adaa3a51dabab9266e82eee8 for issue-85264
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnathanfaucett%2Frs-collection_traits" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nathanfaucett/rs-collection_traits on toolchain 881c1ac408d93bb7adaa3a51dabab9266e82eee8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-7/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 `Command { std: "/workspace/cargo-home/bin/cargo" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8cf14eb37c11c1ef33561a721414967e1ff08484eeef642f6fbecc6be9bac527
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "8cf14eb37c11c1ef33561a721414967e1ff08484eeef642f6fbecc6be9bac527", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8cf14eb37c11c1ef33561a721414967e1ff08484eeef642f6fbecc6be9bac527", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8cf14eb37c11c1ef33561a721414967e1ff08484eeef642f6fbecc6be9bac527", kill_on_drop: false }`
[INFO] [stdout] 8cf14eb37c11c1ef33561a721414967e1ff08484eeef642f6fbecc6be9bac527
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+881c1ac408d93bb7adaa3a51dabab9266e82eee8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ec01cd99bbc75f367b649a21471b925621150d85f6ceffab16e761527a852f3f
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "ec01cd99bbc75f367b649a21471b925621150d85f6ceffab16e761527a852f3f", kill_on_drop: false }`
[INFO] [stderr]    Compiling collection_traits v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(custom_attribute)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: removed in favor of `#![register_tool]` and `#![register_attr]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `alloc::btree_map`
[INFO] [stdout]  --> src/btree_map.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | use alloc::btree_map::{BTreeMap, Iter, IterMut};
[INFO] [stdout]   |            ^^^^^^^^^ could not find `btree_map` in `alloc`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `alloc::btree_set`
[INFO] [stdout]  --> src/btree_set.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | use alloc::btree_set::BTreeSet;
[INFO] [stdout]   |            ^^^^^^^^^ could not find `btree_set` in `alloc`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved imports `alloc::linked_list`, `alloc::linked_list`
[INFO] [stdout]  --> src/linked_list.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | use alloc::linked_list::{self, LinkedList};
[INFO] [stdout]   |            ^^^^^^^^^^^   ^^^^ no `linked_list` in the root
[INFO] [stdout]   |            |
[INFO] [stdout]   |            could not find `linked_list` in `alloc`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Iter` in module `linked_list`
[INFO] [stdout]    --> src/linked_list.rs:125:30
[INFO] [stdout]     |
[INFO] [stdout] 125 |     type Iter = linked_list::Iter<'a, T>;
[INFO] [stdout]     |                              ^^^^ not found in `linked_list`
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]     |
[INFO] [stdout] 1   | use alloc::collections::binary_heap::Iter;
[INFO] [stdout]     |
[INFO] [stdout] 1   | use alloc::collections::btree_map::Iter;
[INFO] [stdout]     |
[INFO] [stdout] 1   | use alloc::collections::btree_set::Iter;
[INFO] [stdout]     |
[INFO] [stdout] 1   | use alloc::collections::linked_list::Iter;
[INFO] [stdout]     |
[INFO] [stdout]       and 8 other candidates
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `IterMut` in module `linked_list`
[INFO] [stdout]    --> src/linked_list.rs:134:33
[INFO] [stdout]     |
[INFO] [stdout] 134 |     type IterMut = linked_list::IterMut<'a, T>;
[INFO] [stdout]     |                                 ^^^^^^^ not found in `linked_list`
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]     |
[INFO] [stdout] 1   | use alloc::collections::btree_map::IterMut;
[INFO] [stdout]     |
[INFO] [stdout] 1   | use alloc::collections::linked_list::IterMut;
[INFO] [stdout]     |
[INFO] [stdout] 1   | use alloc::collections::vec_deque::IterMut;
[INFO] [stdout]     |
[INFO] [stdout] 1   | use alloc::slice::IterMut;
[INFO] [stdout]     |
[INFO] [stdout]       and 3 other candidates
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]  --> src/get_mut.rs:7:27
[INFO] [stdout]   |
[INFO] [stdout] 7 |     fn get_mut(&mut self, K) -> Option<&mut Self::Output>;
[INFO] [stdout]   |                           ^ help: try naming the parameter or explicitly ignoring it: `_: K`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout]   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
[INFO] [stdout]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition.
[INFO] [stdout]  --> src/get.rs:8:19
[INFO] [stdout]   |
[INFO] [stdout] 8 |     fn get(&self, K) -> Option<&Self::Output>;
[INFO] [stdout]   |                   ^ help: try naming the parameter or explicitly ignoring it: `_: K`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2018 edition!
[INFO] [stdout]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 6 previous errors; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0412, E0432, E0557.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0412`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `collection_traits`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "ec01cd99bbc75f367b649a21471b925621150d85f6ceffab16e761527a852f3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec01cd99bbc75f367b649a21471b925621150d85f6ceffab16e761527a852f3f", kill_on_drop: false }`
[INFO] [stdout] ec01cd99bbc75f367b649a21471b925621150d85f6ceffab16e761527a852f3f
