[INFO] fetching crate rclist 0.0.1... [INFO] checking rclist-0.0.1 against master#ff1737bb00913444173658b4e0b274fd79aabf66 for pr-132712-1 [INFO] extracting crate rclist 0.0.1 into /workspace/builds/worker-5-tc1/source [INFO] validating manifest of crates.io crate rclist 0.0.1 on toolchain ff1737bb00913444173658b4e0b274fd79aabf66 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate rclist 0.0.1 [INFO] finished tweaking crates.io crate rclist 0.0.1 [INFO] tweaked toml for crates.io crate rclist 0.0.1 written to /workspace/builds/worker-5-tc1/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "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" "+ff1737bb00913444173658b4e0b274fd79aabf66" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 817c0bcc281bd1fc5323a2b82b090b5c89914e6981295829c29342ad010e714b [INFO] running `Command { std: "docker" "start" "-a" "817c0bcc281bd1fc5323a2b82b090b5c89914e6981295829c29342ad010e714b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "817c0bcc281bd1fc5323a2b82b090b5c89914e6981295829c29342ad010e714b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "817c0bcc281bd1fc5323a2b82b090b5c89914e6981295829c29342ad010e714b", kill_on_drop: false }` [INFO] [stdout] 817c0bcc281bd1fc5323a2b82b090b5c89914e6981295829c29342ad010e714b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 89a8133ba98bd4c0ddddf5ae78d104f3d2bec5a6bef1f276c2d7e5d6e904ecf8 [INFO] running `Command { std: "docker" "start" "-a" "89a8133ba98bd4c0ddddf5ae78d104f3d2bec5a6bef1f276c2d7e5d6e904ecf8", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] Checking rclist v0.0.1 (/opt/rustwide/workdir) [INFO] [stdout] error[E0599]: no method named `downgrade` found for reference `&Rc` in the current scope [INFO] [stdout] --> src/lib.rs:31:50 [INFO] [stdout] | [INFO] [stdout] 31 | &Link::Strong(ref x) => Link::Weak(x.downgrade()), [INFO] [stdout] | --^^^^^^^^^-- [INFO] [stdout] | | | [INFO] [stdout] | | this is an associated function, not a method [INFO] [stdout] | help: use associated function syntax instead: `Rc::::downgrade(&x)` [INFO] [stdout] | [INFO] [stdout] = note: found the following associated functions; to be used as methods, functions must have a `self` parameter [INFO] [stdout] = note: the candidate is defined in an impl for the type `Rc` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0599`. [INFO] [stdout] [INFO] [stderr] error: could not compile `rclist` (lib) due to 1 previous error [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] error[E0599]: no method named `downgrade` found for reference `&Rc` in the current scope [INFO] [stdout] --> src/lib.rs:31:50 [INFO] [stdout] | [INFO] [stdout] 31 | &Link::Strong(ref x) => Link::Weak(x.downgrade()), [INFO] [stdout] | --^^^^^^^^^-- [INFO] [stdout] | | | [INFO] [stdout] | | this is an associated function, not a method [INFO] [stdout] | help: use associated function syntax instead: `Rc::::downgrade(&x)` [INFO] [stdout] | [INFO] [stdout] = note: found the following associated functions; to be used as methods, functions must have a `self` parameter [INFO] [stdout] = note: the candidate is defined in an impl for the type `Rc` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0271]: expected `RcListIter` to be an iterator that yields `&_`, but it yields `Rc>` [INFO] [stdout] --> src/test.rs:12:41 [INFO] [stdout] | [INFO] [stdout] 12 | let vempty : Vec = empty.iter().cloned().cloned().collect(); [INFO] [stdout] | ^^^^^^ type mismatch resolving ` as Iterator>::Item == &_` [INFO] [stdout] | [INFO] [stdout] note: expected this to be `&_` [INFO] [stdout] --> src/lib.rs:109:17 [INFO] [stdout] | [INFO] [stdout] 109 | type Item = Rc>; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] = note: expected reference `&_` [INFO] [stdout] found struct `Rc>` [INFO] [stdout] note: the method call chain might not have had the expected associated types [INFO] [stdout] --> src/test.rs:12:34 [INFO] [stdout] | [INFO] [stdout] 5 | let empty = RcList::new(); [INFO] [stdout] | ------------- this expression has type `RcList` [INFO] [stdout] ... [INFO] [stdout] 12 | let vempty : Vec = empty.iter().cloned().cloned().collect(); [INFO] [stdout] | ^^^^^^ `Iterator::Item` is `Rc>` here [INFO] [stdout] note: required by a bound in `cloned` [INFO] [stdout] --> /rustc/ff1737bb00913444173658b4e0b274fd79aabf66/library/core/src/iter/traits/iterator.rs:3409:5 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0599]: the method `cloned` exists for struct `Cloned>`, but its trait bounds were not satisfied [INFO] [stdout] --> src/test.rs:12:50 [INFO] [stdout] | [INFO] [stdout] 12 | let vempty : Vec = empty.iter().cloned().cloned().collect(); [INFO] [stdout] | ^^^^^^ method cannot be called on `Cloned>` due to unsatisfied trait bounds [INFO] [stdout] | [INFO] [stdout] ::: src/lib.rs:103:1 [INFO] [stdout] | [INFO] [stdout] 103 | pub struct RcListIter { [INFO] [stdout] | --------------------------------- doesn't satisfy ` as std::iter::Iterator>::Item = &_` [INFO] [stdout] | [INFO] [stdout] = note: the following trait bounds were not satisfied: [INFO] [stdout] ` as std::iter::Iterator>::Item = &_` [INFO] [stdout] which is required by `Cloned>: std::iter::Iterator` [INFO] [stdout] `Cloned>: std::iter::Iterator` [INFO] [stdout] which is required by `&mut Cloned>: std::iter::Iterator` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0271]: expected `RcListIter` to be an iterator that yields `&_`, but it yields `Rc>` [INFO] [stdout] --> src/test.rs:13:34 [INFO] [stdout] | [INFO] [stdout] 13 | let v1 : Vec = s1.iter().cloned().cloned().collect(); [INFO] [stdout] | ^^^^^^ type mismatch resolving ` as Iterator>::Item == &_` [INFO] [stdout] | [INFO] [stdout] note: expected this to be `&_` [INFO] [stdout] --> src/lib.rs:109:17 [INFO] [stdout] | [INFO] [stdout] 109 | type Item = Rc>; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] = note: expected reference `&_` [INFO] [stdout] found struct `Rc>` [INFO] [stdout] note: the method call chain might not have had the expected associated types [INFO] [stdout] --> src/test.rs:13:27 [INFO] [stdout] | [INFO] [stdout] 9 | let s1 = RcList::new_append(3, &s); [INFO] [stdout] | ------------------------- this expression has type `RcList` [INFO] [stdout] ... [INFO] [stdout] 13 | let v1 : Vec = s1.iter().cloned().cloned().collect(); [INFO] [stdout] | ^^^^^^ `Iterator::Item` is `Rc>` here [INFO] [stdout] note: required by a bound in `cloned` [INFO] [stdout] --> /rustc/ff1737bb00913444173658b4e0b274fd79aabf66/library/core/src/iter/traits/iterator.rs:3409:5 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0599]: the method `cloned` exists for struct `Cloned>`, but its trait bounds were not satisfied [INFO] [stdout] --> src/test.rs:13:43 [INFO] [stdout] | [INFO] [stdout] 13 | let v1 : Vec = s1.iter().cloned().cloned().collect(); [INFO] [stdout] | ^^^^^^ method cannot be called on `Cloned>` due to unsatisfied trait bounds [INFO] [stdout] | [INFO] [stdout] ::: src/lib.rs:103:1 [INFO] [stdout] | [INFO] [stdout] 103 | pub struct RcListIter { [INFO] [stdout] | --------------------------------- doesn't satisfy ` as std::iter::Iterator>::Item = &_` [INFO] [stdout] | [INFO] [stdout] = note: the following trait bounds were not satisfied: [INFO] [stdout] ` as std::iter::Iterator>::Item = &_` [INFO] [stdout] which is required by `Cloned>: std::iter::Iterator` [INFO] [stdout] `Cloned>: std::iter::Iterator` [INFO] [stdout] which is required by `&mut Cloned>: std::iter::Iterator` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0271]: expected `RcListIter` to be an iterator that yields `&_`, but it yields `Rc>` [INFO] [stdout] --> src/test.rs:14:34 [INFO] [stdout] | [INFO] [stdout] 14 | let v2 : Vec = s2.iter().cloned().cloned().collect(); [INFO] [stdout] | ^^^^^^ type mismatch resolving ` as Iterator>::Item == &_` [INFO] [stdout] | [INFO] [stdout] note: expected this to be `&_` [INFO] [stdout] --> src/lib.rs:109:17 [INFO] [stdout] | [INFO] [stdout] 109 | type Item = Rc>; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] = note: expected reference `&_` [INFO] [stdout] found struct `Rc>` [INFO] [stdout] note: the method call chain might not have had the expected associated types [INFO] [stdout] --> src/test.rs:14:27 [INFO] [stdout] | [INFO] [stdout] 10 | let s2 = RcList::new_append(4, &s); [INFO] [stdout] | ------------------------- this expression has type `RcList` [INFO] [stdout] ... [INFO] [stdout] 14 | let v2 : Vec = s2.iter().cloned().cloned().collect(); [INFO] [stdout] | ^^^^^^ `Iterator::Item` is `Rc>` here [INFO] [stdout] note: required by a bound in `cloned` [INFO] [stdout] --> /rustc/ff1737bb00913444173658b4e0b274fd79aabf66/library/core/src/iter/traits/iterator.rs:3409:5 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0599]: the method `cloned` exists for struct `Cloned>`, but its trait bounds were not satisfied [INFO] [stdout] --> src/test.rs:14:43 [INFO] [stdout] | [INFO] [stdout] 14 | let v2 : Vec = s2.iter().cloned().cloned().collect(); [INFO] [stdout] | ^^^^^^ method cannot be called on `Cloned>` due to unsatisfied trait bounds [INFO] [stdout] | [INFO] [stdout] ::: src/lib.rs:103:1 [INFO] [stdout] | [INFO] [stdout] 103 | pub struct RcListIter { [INFO] [stdout] | --------------------------------- doesn't satisfy ` as std::iter::Iterator>::Item = &_` [INFO] [stdout] | [INFO] [stdout] = note: the following trait bounds were not satisfied: [INFO] [stdout] ` as std::iter::Iterator>::Item = &_` [INFO] [stdout] which is required by `Cloned>: std::iter::Iterator` [INFO] [stdout] `Cloned>: std::iter::Iterator` [INFO] [stdout] which is required by `&mut Cloned>: std::iter::Iterator` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0271]: expected `RcListIter<&str>` to be an iterator that yields `&_`, but it yields `Rc>` [INFO] [stdout] --> src/test.rs:30:43 [INFO] [stdout] | [INFO] [stdout] 30 | let vempty : Vec<&str> = empty.iter().cloned().cloned().collect(); [INFO] [stdout] | ^^^^^^ type mismatch resolving ` as Iterator>::Item == &_` [INFO] [stdout] | [INFO] [stdout] note: expected this to be `&_` [INFO] [stdout] --> src/lib.rs:109:17 [INFO] [stdout] | [INFO] [stdout] 109 | type Item = Rc>; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] = note: expected reference `&_` [INFO] [stdout] found struct `Rc>` [INFO] [stdout] note: the method call chain might not have had the expected associated types [INFO] [stdout] --> src/test.rs:30:36 [INFO] [stdout] | [INFO] [stdout] 23 | let empty = RcList::new(); [INFO] [stdout] | ------------- this expression has type `RcList<&str>` [INFO] [stdout] ... [INFO] [stdout] 30 | let vempty : Vec<&str> = empty.iter().cloned().cloned().collect(); [INFO] [stdout] | ^^^^^^ `Iterator::Item` is `Rc>` here [INFO] [stdout] note: required by a bound in `cloned` [INFO] [stdout] --> /rustc/ff1737bb00913444173658b4e0b274fd79aabf66/library/core/src/iter/traits/iterator.rs:3409:5 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0599]: the method `cloned` exists for struct `Cloned>`, but its trait bounds were not satisfied [INFO] [stdout] --> src/test.rs:30:52 [INFO] [stdout] | [INFO] [stdout] 30 | let vempty : Vec<&str> = empty.iter().cloned().cloned().collect(); [INFO] [stdout] | ^^^^^^ method cannot be called on `Cloned>` due to unsatisfied trait bounds [INFO] [stdout] | [INFO] [stdout] ::: src/lib.rs:103:1 [INFO] [stdout] | [INFO] [stdout] 103 | pub struct RcListIter { [INFO] [stdout] | --------------------------------- doesn't satisfy `<_ as Iterator>::Item = &_` [INFO] [stdout] | [INFO] [stdout] = note: the following trait bounds were not satisfied: [INFO] [stdout] ` as std::iter::Iterator>::Item = &_` [INFO] [stdout] which is required by `Cloned>: std::iter::Iterator` [INFO] [stdout] `Cloned>: std::iter::Iterator` [INFO] [stdout] which is required by `&mut Cloned>: std::iter::Iterator` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0271]: expected `RcListIter<&str>` to be an iterator that yields `&_`, but it yields `Rc>` [INFO] [stdout] --> src/test.rs:31:36 [INFO] [stdout] | [INFO] [stdout] 31 | let v1 : Vec<&str> = s1.iter().cloned().cloned().collect(); [INFO] [stdout] | ^^^^^^ type mismatch resolving ` as Iterator>::Item == &_` [INFO] [stdout] | [INFO] [stdout] note: expected this to be `&_` [INFO] [stdout] --> src/lib.rs:109:17 [INFO] [stdout] | [INFO] [stdout] 109 | type Item = Rc>; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] = note: expected reference `&_` [INFO] [stdout] found struct `Rc>` [INFO] [stdout] note: the method call chain might not have had the expected associated types [INFO] [stdout] --> src/test.rs:31:29 [INFO] [stdout] | [INFO] [stdout] 27 | let s1 = RcList::new_append("3", &s); [INFO] [stdout] | --------------------------- this expression has type `RcList<&str>` [INFO] [stdout] ... [INFO] [stdout] 31 | let v1 : Vec<&str> = s1.iter().cloned().cloned().collect(); [INFO] [stdout] | ^^^^^^ `Iterator::Item` is `Rc>` here [INFO] [stdout] note: required by a bound in `cloned` [INFO] [stdout] --> /rustc/ff1737bb00913444173658b4e0b274fd79aabf66/library/core/src/iter/traits/iterator.rs:3409:5 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0599]: the method `cloned` exists for struct `Cloned>`, but its trait bounds were not satisfied [INFO] [stdout] --> src/test.rs:31:45 [INFO] [stdout] | [INFO] [stdout] 31 | let v1 : Vec<&str> = s1.iter().cloned().cloned().collect(); [INFO] [stdout] | ^^^^^^ method cannot be called on `Cloned>` due to unsatisfied trait bounds [INFO] [stdout] | [INFO] [stdout] ::: src/lib.rs:103:1 [INFO] [stdout] | [INFO] [stdout] 103 | pub struct RcListIter { [INFO] [stdout] | --------------------------------- doesn't satisfy `<_ as Iterator>::Item = &_` [INFO] [stdout] | [INFO] [stdout] = note: the following trait bounds were not satisfied: [INFO] [stdout] ` as std::iter::Iterator>::Item = &_` [INFO] [stdout] which is required by `Cloned>: std::iter::Iterator` [INFO] [stdout] `Cloned>: std::iter::Iterator` [INFO] [stdout] which is required by `&mut Cloned>: std::iter::Iterator` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0271]: expected `RcListIter<&str>` to be an iterator that yields `&_`, but it yields `Rc>` [INFO] [stdout] --> src/test.rs:32:36 [INFO] [stdout] | [INFO] [stdout] 32 | let v2 : Vec<&str> = s2.iter().cloned().cloned().collect(); [INFO] [stdout] | ^^^^^^ type mismatch resolving ` as Iterator>::Item == &_` [INFO] [stdout] | [INFO] [stdout] note: expected this to be `&_` [INFO] [stdout] --> src/lib.rs:109:17 [INFO] [stdout] | [INFO] [stdout] 109 | type Item = Rc>; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] = note: expected reference `&_` [INFO] [stdout] found struct `Rc>` [INFO] [stdout] note: the method call chain might not have had the expected associated types [INFO] [stdout] --> src/test.rs:32:29 [INFO] [stdout] | [INFO] [stdout] 28 | let s2 = RcList::new_append("4", &s); [INFO] [stdout] | --------------------------- this expression has type `RcList<&str>` [INFO] [stdout] ... [INFO] [stdout] 32 | let v2 : Vec<&str> = s2.iter().cloned().cloned().collect(); [INFO] [stdout] | ^^^^^^ `Iterator::Item` is `Rc>` here [INFO] [stdout] note: required by a bound in `cloned` [INFO] [stdout] --> /rustc/ff1737bb00913444173658b4e0b274fd79aabf66/library/core/src/iter/traits/iterator.rs:3409:5 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0599]: the method `cloned` exists for struct `Cloned>`, but its trait bounds were not satisfied [INFO] [stdout] --> src/test.rs:32:45 [INFO] [stdout] | [INFO] [stdout] 32 | let v2 : Vec<&str> = s2.iter().cloned().cloned().collect(); [INFO] [stdout] | ^^^^^^ method cannot be called on `Cloned>` due to unsatisfied trait bounds [INFO] [stdout] | [INFO] [stdout] ::: src/lib.rs:103:1 [INFO] [stdout] | [INFO] [stdout] 103 | pub struct RcListIter { [INFO] [stdout] | --------------------------------- doesn't satisfy `<_ as Iterator>::Item = &_` [INFO] [stdout] | [INFO] [stdout] = note: the following trait bounds were not satisfied: [INFO] [stdout] ` as std::iter::Iterator>::Item = &_` [INFO] [stdout] which is required by `Cloned>: std::iter::Iterator` [INFO] [stdout] `Cloned>: std::iter::Iterator` [INFO] [stdout] which is required by `&mut Cloned>: std::iter::Iterator` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0271]: expected `RcListIter` to be an iterator that yields `&_`, but it yields `Rc>` [INFO] [stdout] --> src/test.rs:49:45 [INFO] [stdout] | [INFO] [stdout] 49 | let vempty : Vec = empty.iter().cloned().cloned().collect(); [INFO] [stdout] | ^^^^^^ type mismatch resolving ` as Iterator>::Item == &_` [INFO] [stdout] | [INFO] [stdout] note: expected this to be `&_` [INFO] [stdout] --> src/lib.rs:109:17 [INFO] [stdout] | [INFO] [stdout] 109 | type Item = Rc>; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] = note: expected reference `&_` [INFO] [stdout] found struct `Rc>` [INFO] [stdout] note: the method call chain might not have had the expected associated types [INFO] [stdout] --> src/test.rs:49:38 [INFO] [stdout] | [INFO] [stdout] 42 | let empty = RcList::new(); [INFO] [stdout] | ------------- this expression has type `RcList` [INFO] [stdout] ... [INFO] [stdout] 49 | let vempty : Vec = empty.iter().cloned().cloned().collect(); [INFO] [stdout] | ^^^^^^ `Iterator::Item` is `Rc>` here [INFO] [stdout] note: required by a bound in `cloned` [INFO] [stdout] --> /rustc/ff1737bb00913444173658b4e0b274fd79aabf66/library/core/src/iter/traits/iterator.rs:3409:5 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0599]: the method `cloned` exists for struct `Cloned>`, but its trait bounds were not satisfied [INFO] [stdout] --> src/test.rs:49:54 [INFO] [stdout] | [INFO] [stdout] 49 | let vempty : Vec = empty.iter().cloned().cloned().collect(); [INFO] [stdout] | ^^^^^^ method cannot be called on `Cloned>` due to unsatisfied trait bounds [INFO] [stdout] | [INFO] [stdout] ::: src/lib.rs:103:1 [INFO] [stdout] | [INFO] [stdout] 103 | pub struct RcListIter { [INFO] [stdout] | --------------------------------- doesn't satisfy `<_ as Iterator>::Item = &_` [INFO] [stdout] | [INFO] [stdout] = note: the following trait bounds were not satisfied: [INFO] [stdout] ` as std::iter::Iterator>::Item = &_` [INFO] [stdout] which is required by `Cloned>: std::iter::Iterator` [INFO] [stdout] `Cloned>: std::iter::Iterator` [INFO] [stdout] which is required by `&mut Cloned>: std::iter::Iterator` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0271]: expected `RcListIter` to be an iterator that yields `&_`, but it yields `Rc>` [INFO] [stdout] --> src/test.rs:50:38 [INFO] [stdout] | [INFO] [stdout] 50 | let v1 : Vec = s1.iter().cloned().cloned().collect(); [INFO] [stdout] | ^^^^^^ type mismatch resolving ` as Iterator>::Item == &_` [INFO] [stdout] | [INFO] [stdout] note: expected this to be `&_` [INFO] [stdout] --> src/lib.rs:109:17 [INFO] [stdout] | [INFO] [stdout] 109 | type Item = Rc>; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] = note: expected reference `&_` [INFO] [stdout] found struct `Rc>` [INFO] [stdout] note: the method call chain might not have had the expected associated types [INFO] [stdout] --> src/test.rs:50:31 [INFO] [stdout] | [INFO] [stdout] 46 | let s1 = RcList::new_append("3".to_string(), &s); [INFO] [stdout] | --------------------------------------- this expression has type `RcList` [INFO] [stdout] ... [INFO] [stdout] 50 | let v1 : Vec = s1.iter().cloned().cloned().collect(); [INFO] [stdout] | ^^^^^^ `Iterator::Item` is `Rc>` here [INFO] [stdout] note: required by a bound in `cloned` [INFO] [stdout] --> /rustc/ff1737bb00913444173658b4e0b274fd79aabf66/library/core/src/iter/traits/iterator.rs:3409:5 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0599]: the method `cloned` exists for struct `Cloned>`, but its trait bounds were not satisfied [INFO] [stdout] --> src/test.rs:50:47 [INFO] [stdout] | [INFO] [stdout] 50 | let v1 : Vec = s1.iter().cloned().cloned().collect(); [INFO] [stdout] | ^^^^^^ method cannot be called on `Cloned>` due to unsatisfied trait bounds [INFO] [stdout] | [INFO] [stdout] ::: src/lib.rs:103:1 [INFO] [stdout] | [INFO] [stdout] 103 | pub struct RcListIter { [INFO] [stdout] | --------------------------------- doesn't satisfy `<_ as Iterator>::Item = &_` [INFO] [stdout] | [INFO] [stdout] = note: the following trait bounds were not satisfied: [INFO] [stdout] ` as std::iter::Iterator>::Item = &_` [INFO] [stdout] which is required by `Cloned>: std::iter::Iterator` [INFO] [stdout] `Cloned>: std::iter::Iterator` [INFO] [stdout] which is required by `&mut Cloned>: std::iter::Iterator` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0271]: expected `RcListIter` to be an iterator that yields `&_`, but it yields `Rc>` [INFO] [stdout] --> src/test.rs:51:38 [INFO] [stdout] | [INFO] [stdout] 51 | let v2 : Vec = s2.iter().cloned().cloned().collect(); [INFO] [stdout] | ^^^^^^ type mismatch resolving ` as Iterator>::Item == &_` [INFO] [stdout] | [INFO] [stdout] note: expected this to be `&_` [INFO] [stdout] --> src/lib.rs:109:17 [INFO] [stdout] | [INFO] [stdout] 109 | type Item = Rc>; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] = note: expected reference `&_` [INFO] [stdout] found struct `Rc>` [INFO] [stdout] note: the method call chain might not have had the expected associated types [INFO] [stdout] --> src/test.rs:51:31 [INFO] [stdout] | [INFO] [stdout] 47 | let s2 = RcList::new_append("4".to_string(), &s); [INFO] [stdout] | --------------------------------------- this expression has type `RcList` [INFO] [stdout] ... [INFO] [stdout] 51 | let v2 : Vec = s2.iter().cloned().cloned().collect(); [INFO] [stdout] | ^^^^^^ `Iterator::Item` is `Rc>` here [INFO] [stdout] note: required by a bound in `cloned` [INFO] [stdout] --> /rustc/ff1737bb00913444173658b4e0b274fd79aabf66/library/core/src/iter/traits/iterator.rs:3409:5 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0599]: the method `cloned` exists for struct `Cloned>`, but its trait bounds were not satisfied [INFO] [stdout] --> src/test.rs:51:47 [INFO] [stdout] | [INFO] [stdout] 51 | let v2 : Vec = s2.iter().cloned().cloned().collect(); [INFO] [stdout] | ^^^^^^ method cannot be called on `Cloned>` due to unsatisfied trait bounds [INFO] [stdout] | [INFO] [stdout] ::: src/lib.rs:103:1 [INFO] [stdout] | [INFO] [stdout] 103 | pub struct RcListIter { [INFO] [stdout] | --------------------------------- doesn't satisfy `<_ as Iterator>::Item = &_` [INFO] [stdout] | [INFO] [stdout] = note: the following trait bounds were not satisfied: [INFO] [stdout] ` as std::iter::Iterator>::Item = &_` [INFO] [stdout] which is required by `Cloned>: std::iter::Iterator` [INFO] [stdout] `Cloned>: std::iter::Iterator` [INFO] [stdout] which is required by `&mut Cloned>: std::iter::Iterator` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0271]: expected `RcListIter` to be an iterator that yields `&_`, but it yields `Rc>` [INFO] [stdout] --> src/test.rs:74:34 [INFO] [stdout] | [INFO] [stdout] 74 | let v1 : Vec = s1.iter().cloned().cloned().collect(); [INFO] [stdout] | ^^^^^^ type mismatch resolving ` as Iterator>::Item == &_` [INFO] [stdout] | [INFO] [stdout] note: expected this to be `&_` [INFO] [stdout] --> src/lib.rs:109:17 [INFO] [stdout] | [INFO] [stdout] 109 | type Item = Rc>; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] = note: expected reference `&_` [INFO] [stdout] found struct `Rc>` [INFO] [stdout] note: the method call chain might not have had the expected associated types [INFO] [stdout] --> src/test.rs:74:27 [INFO] [stdout] | [INFO] [stdout] 74 | let v1 : Vec = s1.iter().cloned().cloned().collect(); [INFO] [stdout] | -- ^^^^^^ `Iterator::Item` is `Rc>` here [INFO] [stdout] | | [INFO] [stdout] | this expression has type `RcList` [INFO] [stdout] note: required by a bound in `cloned` [INFO] [stdout] --> /rustc/ff1737bb00913444173658b4e0b274fd79aabf66/library/core/src/iter/traits/iterator.rs:3409:5 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0599]: the method `cloned` exists for struct `Cloned>`, but its trait bounds were not satisfied [INFO] [stdout] --> src/test.rs:74:43 [INFO] [stdout] | [INFO] [stdout] 74 | let v1 : Vec = s1.iter().cloned().cloned().collect(); [INFO] [stdout] | ^^^^^^ method cannot be called on `Cloned>` due to unsatisfied trait bounds [INFO] [stdout] | [INFO] [stdout] ::: src/lib.rs:103:1 [INFO] [stdout] | [INFO] [stdout] 103 | pub struct RcListIter { [INFO] [stdout] | --------------------------------- doesn't satisfy ` as std::iter::Iterator>::Item = &_` [INFO] [stdout] | [INFO] [stdout] = note: the following trait bounds were not satisfied: [INFO] [stdout] ` as std::iter::Iterator>::Item = &_` [INFO] [stdout] which is required by `Cloned>: std::iter::Iterator` [INFO] [stdout] `Cloned>: std::iter::Iterator` [INFO] [stdout] which is required by `&mut Cloned>: std::iter::Iterator` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0271]: expected `RcListIter` to be an iterator that yields `&_`, but it yields `Rc>` [INFO] [stdout] --> src/test.rs:75:34 [INFO] [stdout] | [INFO] [stdout] 75 | let v2 : Vec = s2.iter().cloned().cloned().collect(); [INFO] [stdout] | ^^^^^^ type mismatch resolving ` as Iterator>::Item == &_` [INFO] [stdout] | [INFO] [stdout] note: expected this to be `&_` [INFO] [stdout] --> src/lib.rs:109:17 [INFO] [stdout] | [INFO] [stdout] 109 | type Item = Rc>; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] = note: expected reference `&_` [INFO] [stdout] found struct `Rc>` [INFO] [stdout] note: the method call chain might not have had the expected associated types [INFO] [stdout] --> src/test.rs:75:27 [INFO] [stdout] | [INFO] [stdout] 75 | let v2 : Vec = s2.iter().cloned().cloned().collect(); [INFO] [stdout] | -- ^^^^^^ `Iterator::Item` is `Rc>` here [INFO] [stdout] | | [INFO] [stdout] | this expression has type `RcList` [INFO] [stdout] note: required by a bound in `cloned` [INFO] [stdout] --> /rustc/ff1737bb00913444173658b4e0b274fd79aabf66/library/core/src/iter/traits/iterator.rs:3409:5 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0599]: the method `cloned` exists for struct `Cloned>`, but its trait bounds were not satisfied [INFO] [stdout] --> src/test.rs:75:43 [INFO] [stdout] | [INFO] [stdout] 75 | let v2 : Vec = s2.iter().cloned().cloned().collect(); [INFO] [stdout] | ^^^^^^ method cannot be called on `Cloned>` due to unsatisfied trait bounds [INFO] [stdout] | [INFO] [stdout] ::: src/lib.rs:103:1 [INFO] [stdout] | [INFO] [stdout] 103 | pub struct RcListIter { [INFO] [stdout] | --------------------------------- doesn't satisfy ` as std::iter::Iterator>::Item = &_` [INFO] [stdout] | [INFO] [stdout] = note: the following trait bounds were not satisfied: [INFO] [stdout] ` as std::iter::Iterator>::Item = &_` [INFO] [stdout] which is required by `Cloned>: std::iter::Iterator` [INFO] [stdout] `Cloned>: std::iter::Iterator` [INFO] [stdout] which is required by `&mut Cloned>: std::iter::Iterator` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0271, E0599. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0271`. [INFO] [stdout] [INFO] [stderr] error: could not compile `rclist` (lib test) due to 23 previous errors [INFO] running `Command { std: "docker" "inspect" "89a8133ba98bd4c0ddddf5ae78d104f3d2bec5a6bef1f276c2d7e5d6e904ecf8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "89a8133ba98bd4c0ddddf5ae78d104f3d2bec5a6bef1f276c2d7e5d6e904ecf8", kill_on_drop: false }` [INFO] [stdout] 89a8133ba98bd4c0ddddf5ae78d104f3d2bec5a6bef1f276c2d7e5d6e904ecf8