[INFO] fetching crate n-tree 0.0.1...
[INFO] checking n-tree-0.0.1 against master#30f74ff0dc4d66debc8b50724c446f817e5f75f4 for pr-121848-1
[INFO] extracting crate n-tree 0.0.1 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate n-tree 0.0.1 on toolchain 30f74ff0dc4d66debc8b50724c446f817e5f75f4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate n-tree 0.0.1
[INFO] finished tweaking crates.io crate n-tree 0.0.1
[INFO] tweaked toml for crates.io crate n-tree 0.0.1 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0a23bef550f6b6c716def88688bbe5f550b2735703d27a4dd41e19c282ffcadb
[INFO] running `Command { std: "docker" "start" "-a" "0a23bef550f6b6c716def88688bbe5f550b2735703d27a4dd41e19c282ffcadb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0a23bef550f6b6c716def88688bbe5f550b2735703d27a4dd41e19c282ffcadb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a23bef550f6b6c716def88688bbe5f550b2735703d27a4dd41e19c282ffcadb", kill_on_drop: false }`
[INFO] [stdout] 0a23bef550f6b6c716def88688bbe5f550b2735703d27a4dd41e19c282ffcadb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0b5310bf506cdf38fbbb5a50db0e322c2e8203e2ac28dce0d66e11d56c24759f
[INFO] running `Command { std: "docker" "start" "-a" "0b5310bf506cdf38fbbb5a50db0e322c2e8203e2ac28dce0d66e11d56c24759f", kill_on_drop: false }`
[INFO] [stderr]     Checking n-tree v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: cannot find attribute `license` in this scope
[INFO] [stdout]  --> src/lib.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![license = "MIT"]
[INFO] [stdout]   |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `ref_slice` in module `slice`
[INFO] [stdout]    --> src/lib.rs:108:32
[INFO] [stdout]     |
[INFO] [stdout] 108 |             stack: vec![slice::ref_slice(self).iter()],
[INFO] [stdout]     |                                ^^^^^^^^^ not found in `slice`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Items` in module `slice`
[INFO] [stdout]    --> src/lib.rs:170:20
[INFO] [stdout]     |
[INFO] [stdout] 170 |     points: slice::Items<'t, P>,
[INFO] [stdout]     |                    ^^^^^ not found in `slice`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Items` in module `slice`
[INFO] [stdout]    --> src/lib.rs:171:23
[INFO] [stdout]     |
[INFO] [stdout] 171 |     stack: Vec<slice::Items<'t, NTree<R, P>>>
[INFO] [stdout]     |                       ^^^^^ not found in `slice`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/lib.rs:16:24
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn contains(&self, &P) -> bool;
[INFO] [stdout]    |                        ^^ help: try naming the parameter or explicitly ignoring it: `_: &P`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:3:9
[INFO] [stdout]    |
[INFO] [stdout] 3  | #![deny(warnings)]
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    = note: `#[deny(anonymous_parameters)]` implied by `#[deny(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unused label
[INFO] [stdout]    --> src/lib.rs:195:17
[INFO] [stdout]     |
[INFO] [stdout] 195 |                 'children: loop {
[INFO] [stdout]     |                 ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[deny(unused_labels)]` implied by `#[deny(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0107]: trait takes 0 generic arguments but 1 generic argument was supplied
[INFO] [stdout]    --> src/lib.rs:174:31
[INFO] [stdout]     |
[INFO] [stdout] 174 | impl<'t, 'q, R: Region<P>, P> Iterator<&'t P> for RangeQuery<'t, 'q, R, P> {
[INFO] [stdout]     |                               ^^^^^^^^ expected 0 generic arguments
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0046]: not all trait items implemented, missing: `Item`
[INFO] [stdout]    --> src/lib.rs:174:1
[INFO] [stdout]     |
[INFO] [stdout] 174 | impl<'t, 'q, R: Region<P>, P> Iterator<&'t P> for RangeQuery<'t, 'q, R, P> {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ missing `Item` in implementation
[INFO] [stdout]     |
[INFO] [stdout]     = help: implement the missing item: `type Item = /* Type */;`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `license` in this scope
[INFO] [stdout]  --> src/lib.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![license = "MIT"]
[INFO] [stdout]   |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `ref_slice` in module `slice`
[INFO] [stdout]    --> src/lib.rs:108:32
[INFO] [stdout]     |
[INFO] [stdout] 108 |             stack: vec![slice::ref_slice(self).iter()],
[INFO] [stdout]     |                                ^^^^^^^^^ not found in `slice`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Items` in module `slice`
[INFO] [stdout]    --> src/lib.rs:170:20
[INFO] [stdout]     |
[INFO] [stdout] 170 |     points: slice::Items<'t, P>,
[INFO] [stdout]     |                    ^^^^^ not found in `slice`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Items` in module `slice`
[INFO] [stdout]    --> src/lib.rs:171:23
[INFO] [stdout]     |
[INFO] [stdout] 171 |     stack: Vec<slice::Items<'t, NTree<R, P>>>
[INFO] [stdout]     |                       ^^^^^ not found in `slice`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> src/lib.rs:16:24
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn contains(&self, &P) -> bool;
[INFO] [stdout]    |                        ^^ help: try naming the parameter or explicitly ignoring it: `_: &P`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:3:9
[INFO] [stdout]    |
[INFO] [stdout] 3  | #![deny(warnings)]
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    = note: `#[deny(anonymous_parameters)]` implied by `#[deny(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unused label
[INFO] [stdout]    --> src/lib.rs:195:17
[INFO] [stdout]     |
[INFO] [stdout] 195 |                 'children: loop {
[INFO] [stdout]     |                 ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[deny(unused_labels)]` implied by `#[deny(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0107]: trait takes 0 generic arguments but 1 generic argument was supplied
[INFO] [stdout]    --> src/lib.rs:174:31
[INFO] [stdout]     |
[INFO] [stdout] 174 | impl<'t, 'q, R: Region<P>, P> Iterator<&'t P> for RangeQuery<'t, 'q, R, P> {
[INFO] [stdout]     |                               ^^^^^^^^ expected 0 generic arguments
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0046]: not all trait items implemented, missing: `Item`
[INFO] [stdout]    --> src/lib.rs:174:1
[INFO] [stdout]     |
[INFO] [stdout] 174 | impl<'t, 'q, R: Region<P>, P> Iterator<&'t P> for RangeQuery<'t, 'q, R, P> {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ missing `Item` in implementation
[INFO] [stdout]     |
[INFO] [stdout]     = help: implement the missing item: `type Item = /* Type */;`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:138:9
[INFO] [stdout]     |
[INFO] [stdout] 138 |     let mut old_points;
[INFO] [stdout]     |         ----^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[deny(unused_mut)]` implied by `#[deny(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:139:9
[INFO] [stdout]     |
[INFO] [stdout] 139 |     let mut old_bucket_limit;
[INFO] [stdout]     |         ----^^^^^^^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 10 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0046, E0107, E0412, E0425.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0046`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `n-tree` (lib test) due to 11 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:138:9
[INFO] [stdout]     |
[INFO] [stdout] 138 |     let mut old_points;
[INFO] [stdout]     |         ----^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[deny(unused_mut)]` implied by `#[deny(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:139:9
[INFO] [stdout]     |
[INFO] [stdout] 139 |     let mut old_bucket_limit;
[INFO] [stdout]     |         ----^^^^^^^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 10 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0046, E0107, E0412, E0425.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0046`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `n-tree` (lib) due to 11 previous errors
[INFO] running `Command { std: "docker" "inspect" "0b5310bf506cdf38fbbb5a50db0e322c2e8203e2ac28dce0d66e11d56c24759f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b5310bf506cdf38fbbb5a50db0e322c2e8203e2ac28dce0d66e11d56c24759f", kill_on_drop: false }`
[INFO] [stdout] 0b5310bf506cdf38fbbb5a50db0e322c2e8203e2ac28dce0d66e11d56c24759f
