[INFO] fetching crate rads 0.1.0...
[INFO] checking rads-0.1.0 against try#cac44d9528e3bbbdaa1537d187bd489ccc5de18c for pr-91141
[INFO] extracting crate rads 0.1.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate rads 0.1.0 on toolchain cac44d9528e3bbbdaa1537d187bd489ccc5de18c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rads 0.1.0
[INFO] finished tweaking crates.io crate rads 0.1.0
[INFO] tweaked toml for crates.io crate rads 0.1.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e704fe56c68b817dd5899cc9975eb0a95f604146d8a5a86bfb0eb6cf9ab906d3
[INFO] running `Command { std: "docker" "start" "-a" "e704fe56c68b817dd5899cc9975eb0a95f604146d8a5a86bfb0eb6cf9ab906d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e704fe56c68b817dd5899cc9975eb0a95f604146d8a5a86bfb0eb6cf9ab906d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e704fe56c68b817dd5899cc9975eb0a95f604146d8a5a86bfb0eb6cf9ab906d3", kill_on_drop: false }`
[INFO] [stdout] e704fe56c68b817dd5899cc9975eb0a95f604146d8a5a86bfb0eb6cf9ab906d3
[INFO] running `Command { std: "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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bde590fc1d9a3f109d0450e24692a6eedc524d41345d04f2bbe8c764b84a3958
[INFO] running `Command { std: "docker" "start" "-a" "bde590fc1d9a3f109d0450e24692a6eedc524d41345d04f2bbe8c764b84a3958", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.108
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking rads v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the feature `specialization` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(specialization)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout]   = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]   = help: consider using `min_specialization` instead, which is more stable and complete
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> src/order/linked_list.rs:98:9
[INFO] [stdout]    |
[INFO] [stdout] 98 |         /// Ensure this atom exists in this LinkedList
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/order/ofm.rs:261:13
[INFO] [stdout]     |
[INFO] [stdout] 261 |             (offset .. offset + width)
[INFO] [stdout]     |             ^                        ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 261 -             (offset .. offset + width)
[INFO] [stdout] 261 +             offset .. offset + width
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `specialization` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(specialization)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout]   = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]   = help: consider using `min_specialization` instead, which is more stable and complete
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> src/order/linked_list.rs:98:9
[INFO] [stdout]    |
[INFO] [stdout] 98 |         /// Ensure this atom exists in this LinkedList
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ rustdoc does not generate documentation for macro invocations
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/order/ofm.rs:261:13
[INFO] [stdout]     |
[INFO] [stdout] 261 |             (offset .. offset + width)
[INFO] [stdout]     |             ^                        ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 261 -             (offset .. offset + width)
[INFO] [stdout] 261 +             offset .. offset + width
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0275]: overflow evaluating the requirement `T: Indexable`
[INFO] [stdout]    --> src/order/ofm.rs:193:36
[INFO] [stdout]     |
[INFO] [stdout] 193 | impl<T> std::ops::Index<Index> for Ofm<T> {
[INFO] [stdout]     |                                    ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: required by a bound in `Ofm`
[INFO] [stdout]    --> src/order/ofm.rs:50:19
[INFO] [stdout]     |
[INFO] [stdout] 50  | pub struct Ofm<T: Indexable> {
[INFO] [stdout]     |                   ^^^^^^^^^ required by this bound in `Ofm`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0275]: overflow evaluating the requirement `T: ofm::Indexable`
[INFO] [stdout]    --> src/order/ofm.rs:193:36
[INFO] [stdout]     |
[INFO] [stdout] 193 | impl<T> std::ops::Index<Index> for Ofm<T> {
[INFO] [stdout]     |                                    ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: required by a bound in `ofm::Ofm`
[INFO] [stdout]    --> src/order/ofm.rs:50:19
[INFO] [stdout]     |
[INFO] [stdout] 50  | pub struct Ofm<T: Indexable> {
[INFO] [stdout]     |                   ^^^^^^^^^ required by this bound in `ofm::Ofm`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0275]: overflow evaluating the requirement `T: Indexable`
[INFO] [stdout]    --> src/order/ofm.rs:195:14
[INFO] [stdout]     |
[INFO] [stdout] 195 |     fn index(&self, i: Index) -> &T {
[INFO] [stdout]     |              ^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: required by a bound in `Ofm`
[INFO] [stdout]    --> src/order/ofm.rs:50:19
[INFO] [stdout]     |
[INFO] [stdout] 50  | pub struct Ofm<T: Indexable> {
[INFO] [stdout]     |                   ^^^^^^^^^ required by this bound in `Ofm`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0275]: overflow evaluating the requirement `T: ofm::Indexable`
[INFO] [stdout]    --> src/order/ofm.rs:195:14
[INFO] [stdout]     |
[INFO] [stdout] 195 |     fn index(&self, i: Index) -> &T {
[INFO] [stdout]     |              ^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: required by a bound in `ofm::Ofm`
[INFO] [stdout]    --> src/order/ofm.rs:50:19
[INFO] [stdout]     |
[INFO] [stdout] 50  | pub struct Ofm<T: Indexable> {
[INFO] [stdout]     |                   ^^^^^^^^^ required by this bound in `ofm::Ofm`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0275]: overflow evaluating the requirement `T: Indexable`
[INFO] [stdout]    --> src/order/ofm.rs:220:45
[INFO] [stdout]     |
[INFO] [stdout] 220 | impl<'a, T: 'a> std::iter::IntoIterator for &'a Ofm<T> {
[INFO] [stdout]     |                                             ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: required by a bound in `Ofm`
[INFO] [stdout]    --> src/order/ofm.rs:50:19
[INFO] [stdout]     |
[INFO] [stdout] 50  | pub struct Ofm<T: Indexable> {
[INFO] [stdout]     |                   ^^^^^^^^^ required by this bound in `Ofm`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0275]: overflow evaluating the requirement `T: ofm::Indexable`
[INFO] [stdout]    --> src/order/ofm.rs:220:45
[INFO] [stdout]     |
[INFO] [stdout] 220 | impl<'a, T: 'a> std::iter::IntoIterator for &'a Ofm<T> {
[INFO] [stdout]     |                                             ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: required by a bound in `ofm::Ofm`
[INFO] [stdout]    --> src/order/ofm.rs:50:19
[INFO] [stdout]     |
[INFO] [stdout] 50  | pub struct Ofm<T: Indexable> {
[INFO] [stdout]     |                   ^^^^^^^^^ required by this bound in `ofm::Ofm`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0275]: overflow evaluating the requirement `T: ofm::Indexable`
[INFO] [stdout]    --> src/order/ofm.rs:223:18
[INFO] [stdout]     |
[INFO] [stdout] 223 |     fn into_iter(self) -> Self::IntoIter {
[INFO] [stdout]     |                  ^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: required by a bound in `ofm::Ofm`
[INFO] [stdout]    --> src/order/ofm.rs:50:19
[INFO] [stdout]     |
[INFO] [stdout] 50  | pub struct Ofm<T: Indexable> {
[INFO] [stdout]     |                   ^^^^^^^^^ required by this bound in `ofm::Ofm`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0275]: overflow evaluating the requirement `T: Indexable`
[INFO] [stdout]    --> src/order/ofm.rs:223:18
[INFO] [stdout]     |
[INFO] [stdout] 223 |     fn into_iter(self) -> Self::IntoIter {
[INFO] [stdout]     |                  ^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: required by a bound in `Ofm`
[INFO] [stdout]    --> src/order/ofm.rs:50:19
[INFO] [stdout]     |
[INFO] [stdout] 50  | pub struct Ofm<T: Indexable> {
[INFO] [stdout]     |                   ^^^^^^^^^ required by this bound in `Ofm`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors; 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0275`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors; 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0275`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rads` due to 5 previous errors; 3 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "bde590fc1d9a3f109d0450e24692a6eedc524d41345d04f2bbe8c764b84a3958", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bde590fc1d9a3f109d0450e24692a6eedc524d41345d04f2bbe8c764b84a3958", kill_on_drop: false }`
[INFO] [stdout] bde590fc1d9a3f109d0450e24692a6eedc524d41345d04f2bbe8c764b84a3958