Dec 07 16:45:52.086 INFO testing fingertrees-0.2.1 against try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468 for pr-56514
Dec 07 16:45:52.086 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-6/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56514/try#6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +6eb0fd3ac58f9b16bddb9924a17c3b6c156aa468-alt build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 07 16:45:52.575 INFO [stdout] 631001b6d819bfeccd1e5410114c5fc74e1b2119d450f4774d50b009dbf81958
Dec 07 16:45:52.576 INFO running `"docker" "start" "-a" "631001b6d819bfeccd1e5410114c5fc74e1b2119d450f4774d50b009dbf81958"`
Dec 07 16:45:53.631 INFO [stderr] usermod: no changes
Dec 07 16:45:53.786 INFO [stderr]    Compiling fingertrees v0.2.1 (/source)
Dec 07 16:45:54.463 INFO [stderr] error[E0277]: the size for values of type `<<R as reference::Refs<V>>::Node as std::ops::Deref>::Target` cannot be known at compilation time
Dec 07 16:45:54.463 INFO [stderr]   --> src/node.rs:45:20
Dec 07 16:45:54.463 INFO [stderr]    |
Dec 07 16:45:54.463 INFO [stderr] 45 |             inner: R::Node::new(NodeInner::Leaf(value)),
Dec 07 16:45:54.463 INFO [stderr]    |                    ^^^^^^^^^^^^ doesn't have a size known at compile-time
Dec 07 16:45:54.463 INFO [stderr]    |
Dec 07 16:45:54.463 INFO [stderr]    = help: the trait `std::marker::Sized` is not implemented for `<<R as reference::Refs<V>>::Node as std::ops::Deref>::Target`
Dec 07 16:45:54.463 INFO [stderr]    = note: to learn more, visit <https://doc.rust-lang.org/book/second-edition/ch19-04-advanced-types.html#dynamically-sized-types-and-the-sized-trait>
Dec 07 16:45:54.463 INFO [stderr]    = help: consider adding a `where <<R as reference::Refs<V>>::Node as std::ops::Deref>::Target: std::marker::Sized` bound
Dec 07 16:45:54.463 INFO [stderr]    = note: all function arguments must have a statically known size
Dec 07 16:45:54.463 INFO [stderr]    = help: unsized locals are gated as an unstable feature
Dec 07 16:45:54.463 INFO [stderr] 
Dec 07 16:45:54.468 INFO [stderr] error[E0277]: the size for values of type `<<R as reference::Refs<V>>::Node as std::ops::Deref>::Target` cannot be known at compilation time
Dec 07 16:45:54.468 INFO [stderr]   --> src/node.rs:52:20
Dec 07 16:45:54.468 INFO [stderr]    |
Dec 07 16:45:54.468 INFO [stderr] 52 |             inner: R::Node::new(NodeInner::Node2 {
Dec 07 16:45:54.468 INFO [stderr]    |                    ^^^^^^^^^^^^ doesn't have a size known at compile-time
Dec 07 16:45:54.468 INFO [stderr]    |
Dec 07 16:45:54.468 INFO [stderr]    = help: the trait `std::marker::Sized` is not implemented for `<<R as reference::Refs<V>>::Node as std::ops::Deref>::Target`
Dec 07 16:45:54.468 INFO [stderr]    = note: to learn more, visit <https://doc.rust-lang.org/book/second-edition/ch19-04-advanced-types.html#dynamically-sized-types-and-the-sized-trait>
Dec 07 16:45:54.468 INFO [stderr]    = help: consider adding a `where <<R as reference::Refs<V>>::Node as std::ops::Deref>::Target: std::marker::Sized` bound
Dec 07 16:45:54.468 INFO [stderr]    = note: all function arguments must have a statically known size
Dec 07 16:45:54.468 INFO [stderr]    = help: unsized locals are gated as an unstable feature
Dec 07 16:45:54.468 INFO [stderr] 
Dec 07 16:45:54.468 INFO [stderr] error[E0277]: the size for values of type `<<R as reference::Refs<V>>::Node as std::ops::Deref>::Target` cannot be known at compilation time
Dec 07 16:45:54.468 INFO [stderr]   --> src/node.rs:66:20
Dec 07 16:45:54.468 INFO [stderr]    |
Dec 07 16:45:54.468 INFO [stderr] 66 |             inner: R::Node::new(NodeInner::Node3 {
Dec 07 16:45:54.468 INFO [stderr]    |                    ^^^^^^^^^^^^ doesn't have a size known at compile-time
Dec 07 16:45:54.468 INFO [stderr]    |
Dec 07 16:45:54.468 INFO [stderr]    = help: the trait `std::marker::Sized` is not implemented for `<<R as reference::Refs<V>>::Node as std::ops::Deref>::Target`
Dec 07 16:45:54.468 INFO [stderr]    = note: to learn more, visit <https://doc.rust-lang.org/book/second-edition/ch19-04-advanced-types.html#dynamically-sized-types-and-the-sized-trait>
Dec 07 16:45:54.468 INFO [stderr]    = help: consider adding a `where <<R as reference::Refs<V>>::Node as std::ops::Deref>::Target: std::marker::Sized` bound
Dec 07 16:45:54.468 INFO [stderr]    = note: all function arguments must have a statically known size
Dec 07 16:45:54.468 INFO [stderr]    = help: unsized locals are gated as an unstable feature
Dec 07 16:45:54.468 INFO [stderr] 
Dec 07 16:45:54.480 INFO [stderr] error[E0277]: the size for values of type `<<R as reference::Refs<V>>::Tree as std::ops::Deref>::Target` cannot be known at compilation time
Dec 07 16:45:54.480 INFO [stderr]   --> src/tree.rs:79:20
Dec 07 16:45:54.480 INFO [stderr]    |
Dec 07 16:45:54.480 INFO [stderr] 79 |         Tree::Deep(R::Tree::new(TreeInner {
Dec 07 16:45:54.480 INFO [stderr]    |                    ^^^^^^^^^^^^ doesn't have a size known at compile-time
Dec 07 16:45:54.480 INFO [stderr]    |
Dec 07 16:45:54.480 INFO [stderr]    = help: the trait `std::marker::Sized` is not implemented for `<<R as reference::Refs<V>>::Tree as std::ops::Deref>::Target`
Dec 07 16:45:54.480 INFO [stderr]    = note: to learn more, visit <https://doc.rust-lang.org/book/second-edition/ch19-04-advanced-types.html#dynamically-sized-types-and-the-sized-trait>
Dec 07 16:45:54.480 INFO [stderr]    = help: consider adding a `where <<R as reference::Refs<V>>::Tree as std::ops::Deref>::Target: std::marker::Sized` bound
Dec 07 16:45:54.480 INFO [stderr]    = note: all function arguments must have a statically known size
Dec 07 16:45:54.480 INFO [stderr]    = help: unsized locals are gated as an unstable feature
Dec 07 16:45:54.480 INFO [stderr] 
Dec 07 16:45:54.518 INFO [stderr] error: aborting due to 4 previous errors
Dec 07 16:45:54.518 INFO [stderr] 
Dec 07 16:45:54.518 INFO [stderr] For more information about this error, try `rustc --explain E0277`.
Dec 07 16:45:54.531 INFO [stderr] error: Could not compile `fingertrees`.
Dec 07 16:45:54.531 INFO [stderr] 
Dec 07 16:45:54.531 INFO [stderr] To learn more, run the command again with --verbose.
Dec 07 16:45:54.548 INFO [stderr] su: No module specific data is present
Dec 07 16:45:54.942 INFO running `"docker" "inspect" "631001b6d819bfeccd1e5410114c5fc74e1b2119d450f4774d50b009dbf81958"`
Dec 07 16:45:55.129 INFO running `"docker" "rm" "-f" "631001b6d819bfeccd1e5410114c5fc74e1b2119d450f4774d50b009dbf81958"`
Dec 07 16:45:55.274 INFO [stdout] 631001b6d819bfeccd1e5410114c5fc74e1b2119d450f4774d50b009dbf81958