[INFO] fetching crate rads 0.1.0...
[INFO] checking rads-0.1.0 against try#d990716b6a1fdde1300748828a9c9e79dfd0b898 for pr-74846
[INFO] extracting crate rads 0.1.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate rads 0.1.0 on toolchain d990716b6a1fdde1300748828a9c9e79dfd0b898
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "read-manifest" "--manifest-path" "Cargo.toml", 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-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "fetch" "--locked" "--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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] bdfe0c45a07c128bd7634510c852f48f85a1a0ce030ef299e4c1c657e4d2a89c
[INFO] running `Command { std: "docker" "start" "-a" "bdfe0c45a07c128bd7634510c852f48f85a1a0ce030ef299e4c1c657e4d2a89c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bdfe0c45a07c128bd7634510c852f48f85a1a0ce030ef299e4c1c657e4d2a89c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bdfe0c45a07c128bd7634510c852f48f85a1a0ce030ef299e4c1c657e4d2a89c", kill_on_drop: false }`
[INFO] [stdout] bdfe0c45a07c128bd7634510c852f48f85a1a0ce030ef299e4c1c657e4d2a89c
[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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 169d1d543e40f3e9c217d14bd8de7c337a9bbbe2d5a99ff9166dc110c7968239
[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" "169d1d543e40f3e9c217d14bd8de7c337a9bbbe2d5a99ff9166dc110c7968239", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.74
[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: 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: 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] 
[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]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[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: 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] 
[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]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0275]: overflow evaluating the requirement `T: order::ofm::Indexable`
[INFO] [stdout]    --> src/order/ofm.rs:193:36
[INFO] [stdout]     |
[INFO] [stdout] 50  | pub struct Ofm<T: Indexable> {
[INFO] [stdout]     |                   --------- required by this bound in `order::ofm::Ofm`
[INFO] [stdout] ...
[INFO] [stdout] 193 | impl<T> std::ops::Index<Index> for Ofm<T> {
[INFO] [stdout]     |                                    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0275]: overflow evaluating the requirement `T: order::ofm::Indexable`
[INFO] [stdout]    --> src/order/ofm.rs:220:45
[INFO] [stdout]     |
[INFO] [stdout] 50  | pub struct Ofm<T: Indexable> {
[INFO] [stdout]     |                   --------- required by this bound in `order::ofm::Ofm`
[INFO] [stdout] ...
[INFO] [stdout] 220 | impl<'a, T: 'a> std::iter::IntoIterator for &'a Ofm<T> {
[INFO] [stdout]     |                                             ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0275]: overflow evaluating the requirement `T: order::ofm::Indexable`
[INFO] [stdout]    --> src/order/ofm.rs:195:14
[INFO] [stdout]     |
[INFO] [stdout] 50  | pub struct Ofm<T: Indexable> {
[INFO] [stdout]     |                   --------- required by this bound in `order::ofm::Ofm`
[INFO] [stdout] ...
[INFO] [stdout] 195 |     fn index(&self, i: Index) -> &T {
[INFO] [stdout]     |              ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0275]: overflow evaluating the requirement `T: order::ofm::Indexable`
[INFO] [stdout]    --> src/order/ofm.rs:223:18
[INFO] [stdout]     |
[INFO] [stdout] 50  | pub struct Ofm<T: Indexable> {
[INFO] [stdout]     |                   --------- required by this bound in `order::ofm::Ofm`
[INFO] [stdout] ...
[INFO] [stdout] 223 |     fn into_iter(self) -> Self::IntoIter {
[INFO] [stdout]     |                  ^^^^
[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[E0275]: overflow evaluating the requirement `T: order::ofm::Indexable`
[INFO] [stdout]    --> src/order/ofm.rs:193:36
[INFO] [stdout]     |
[INFO] [stdout] 50  | pub struct Ofm<T: Indexable> {
[INFO] [stdout]     |                   --------- required by this bound in `order::ofm::Ofm`
[INFO] [stdout] ...
[INFO] [stdout] 193 | impl<T> std::ops::Index<Index> for Ofm<T> {
[INFO] [stdout]     |                                    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0275]: overflow evaluating the requirement `T: order::ofm::Indexable`
[INFO] [stdout]    --> src/order/ofm.rs:220:45
[INFO] [stdout]     |
[INFO] [stdout] 50  | pub struct Ofm<T: Indexable> {
[INFO] [stdout]     |                   --------- required by this bound in `order::ofm::Ofm`
[INFO] [stdout] ...
[INFO] [stdout] 220 | impl<'a, T: 'a> std::iter::IntoIterator for &'a Ofm<T> {
[INFO] [stdout]     |                                             ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rads`.
[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] [stdout] error[E0275]: overflow evaluating the requirement `T: order::ofm::Indexable`
[INFO] [stdout]    --> src/order/ofm.rs:195:14
[INFO] [stdout]     |
[INFO] [stdout] 50  | pub struct Ofm<T: Indexable> {
[INFO] [stdout]     |                   --------- required by this bound in `order::ofm::Ofm`
[INFO] [stdout] ...
[INFO] [stdout] 195 |     fn index(&self, i: Index) -> &T {
[INFO] [stdout]     |              ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0275]: overflow evaluating the requirement `T: order::ofm::Indexable`
[INFO] [stdout]    --> src/order/ofm.rs:223:18
[INFO] [stdout]     |
[INFO] [stdout] 50  | pub struct Ofm<T: Indexable> {
[INFO] [stdout]     |                   --------- required by this bound in `order::ofm::Ofm`
[INFO] [stdout] ...
[INFO] [stdout] 223 |     fn into_iter(self) -> Self::IntoIter {
[INFO] [stdout]     |                  ^^^^
[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] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "169d1d543e40f3e9c217d14bd8de7c337a9bbbe2d5a99ff9166dc110c7968239", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "169d1d543e40f3e9c217d14bd8de7c337a9bbbe2d5a99ff9166dc110c7968239", kill_on_drop: false }`
[INFO] [stdout] 169d1d543e40f3e9c217d14bd8de7c337a9bbbe2d5a99ff9166dc110c7968239