[INFO] cloning repository https://github.com/nathanfaucett/rs-array
[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-array" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnathanfaucett%2Frs-array", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnathanfaucett%2Frs-array'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fbe216d62a44a3410ab646f66cab91cb05388857
[INFO] checking nathanfaucett/rs-array against try#3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f for pr-87248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnathanfaucett%2Frs-array" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nathanfaucett/rs-array on toolchain 3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/nathanfaucett/rs-array
[INFO] finished tweaking git repo https://github.com/nathanfaucett/rs-array
[INFO] tweaked toml for git repo https://github.com/nathanfaucett/rs-array written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/nathanfaucett/rs-array already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 559af8fba2706d54995019c2f51f0e8d1738336a1a5ad8cbfb92b467d2d8ec1d
[INFO] running `Command { std: "docker" "start" "-a" "559af8fba2706d54995019c2f51f0e8d1738336a1a5ad8cbfb92b467d2d8ec1d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "559af8fba2706d54995019c2f51f0e8d1738336a1a5ad8cbfb92b467d2d8ec1d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "559af8fba2706d54995019c2f51f0e8d1738336a1a5ad8cbfb92b467d2d8ec1d", kill_on_drop: false }`
[INFO] [stdout] 559af8fba2706d54995019c2f51f0e8d1738336a1a5ad8cbfb92b467d2d8ec1d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4cd1ac395d045c837e263e8a2d0442634d058df657c11bf533e8c340eb06c575
[INFO] running `Command { std: "docker" "start" "-a" "4cd1ac395d045c837e263e8a2d0442634d058df657c11bf533e8c340eb06c575", kill_on_drop: false }`
[INFO] [stderr]     Checking collection_traits v0.1.0 (https://github.com/nathanfaucett/rs-collection_traits#59414f0b)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> /opt/rustwide/cargo-home/git/checkouts/rs-collection_traits-dca7cc2c0ed7a0a9/59414f0/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]  --> /opt/rustwide/cargo-home/git/checkouts/rs-collection_traits-dca7cc2c0ed7a0a9/59414f0/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]  --> /opt/rustwide/cargo-home/git/checkouts/rs-collection_traits-dca7cc2c0ed7a0a9/59414f0/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]  --> /opt/rustwide/cargo-home/git/checkouts/rs-collection_traits-dca7cc2c0ed7a0a9/59414f0/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]    --> /opt/rustwide/cargo-home/git/checkouts/rs-collection_traits-dca7cc2c0ed7a0a9/59414f0/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 4 other candidates
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `IterMut` in module `linked_list`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/git/checkouts/rs-collection_traits-dca7cc2c0ed7a0a9/59414f0/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 2 other candidates
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `collection_traits` due to 7 previous errors
[INFO] [stdout] error: aborting due to 6 previous errors
[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] running `Command { std: "docker" "inspect" "4cd1ac395d045c837e263e8a2d0442634d058df657c11bf533e8c340eb06c575", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4cd1ac395d045c837e263e8a2d0442634d058df657c11bf533e8c340eb06c575", kill_on_drop: false }`
[INFO] [stdout] 4cd1ac395d045c837e263e8a2d0442634d058df657c11bf533e8c340eb06c575