[INFO] fetching crate rclist 0.0.1... [INFO] checking rclist-0.0.1 against master#506512391b1a75ae450d36c9420978402a91abcc for pr-125384 [INFO] extracting crate rclist 0.0.1 into /workspace/builds/worker-3-tc1/source [INFO] validating manifest of crates.io crate rclist 0.0.1 on toolchain 506512391b1a75ae450d36c9420978402a91abcc [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "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-3-tc1/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "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" "+506512391b1a75ae450d36c9420978402a91abcc" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] a696373bd01e73c4803d57ab4a60d173b10c4d91635f53cbd03a79fac30dc452 [INFO] running `Command { std: "docker" "start" "-a" "a696373bd01e73c4803d57ab4a60d173b10c4d91635f53cbd03a79fac30dc452", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a696373bd01e73c4803d57ab4a60d173b10c4d91635f53cbd03a79fac30dc452", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a696373bd01e73c4803d57ab4a60d173b10c4d91635f53cbd03a79fac30dc452", kill_on_drop: false }` [INFO] [stdout] a696373bd01e73c4803d57ab4a60d173b10c4d91635f53cbd03a79fac30dc452 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 7b5a04d817d57ee9d5a234480ec38e44fbb6d52255d30e90abac683494fedf91 [INFO] running `Command { std: "docker" "start" "-a" "7b5a04d817d57ee9d5a234480ec38e44fbb6d52255d30e90abac683494fedf91", kill_on_drop: false }` [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] 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/506512391b1a75ae450d36c9420978402a91abcc/library/core/src/iter/traits/iterator.rs:3467:5 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0599`. [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/506512391b1a75ae450d36c9420978402a91abcc/library/core/src/iter/traits/iterator.rs:3467:5 [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/506512391b1a75ae450d36c9420978402a91abcc/library/core/src/iter/traits/iterator.rs:3467:5 [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `rclist` (lib) due to 2 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [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/506512391b1a75ae450d36c9420978402a91abcc/library/core/src/iter/traits/iterator.rs:3467:5 [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/506512391b1a75ae450d36c9420978402a91abcc/library/core/src/iter/traits/iterator.rs:3467:5 [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/506512391b1a75ae450d36c9420978402a91abcc/library/core/src/iter/traits/iterator.rs:3467:5 [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/506512391b1a75ae450d36c9420978402a91abcc/library/core/src/iter/traits/iterator.rs:3467:5 [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/506512391b1a75ae450d36c9420978402a91abcc/library/core/src/iter/traits/iterator.rs:3467:5 [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/506512391b1a75ae450d36c9420978402a91abcc/library/core/src/iter/traits/iterator.rs:3467:5 [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/506512391b1a75ae450d36c9420978402a91abcc/library/core/src/iter/traits/iterator.rs:3467:5 [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/506512391b1a75ae450d36c9420978402a91abcc/library/core/src/iter/traits/iterator.rs:3467:5 [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] error: aborting due to 23 previous errors [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 24 previous errors [INFO] running `Command { std: "docker" "inspect" "7b5a04d817d57ee9d5a234480ec38e44fbb6d52255d30e90abac683494fedf91", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7b5a04d817d57ee9d5a234480ec38e44fbb6d52255d30e90abac683494fedf91", kill_on_drop: false }` [INFO] [stdout] 7b5a04d817d57ee9d5a234480ec38e44fbb6d52255d30e90abac683494fedf91 [INFO] checking rclist-0.0.1 against try#dae34b759e282c069aa28752564694effd121a63 for pr-125384 [INFO] extracting crate rclist 0.0.1 into /workspace/builds/worker-3-tc2/source [INFO] validating manifest of crates.io crate rclist 0.0.1 on toolchain dae34b759e282c069aa28752564694effd121a63 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dae34b759e282c069aa28752564694effd121a63" "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-3-tc2/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dae34b759e282c069aa28752564694effd121a63" "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" "+dae34b759e282c069aa28752564694effd121a63" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+dae34b759e282c069aa28752564694effd121a63" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 64bec94553cc1c73aecb4bba7b4ddbff0168a6766c4d8ed4bf18eaae00b111ff [INFO] running `Command { std: "docker" "start" "-a" "64bec94553cc1c73aecb4bba7b4ddbff0168a6766c4d8ed4bf18eaae00b111ff", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "64bec94553cc1c73aecb4bba7b4ddbff0168a6766c4d8ed4bf18eaae00b111ff", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "64bec94553cc1c73aecb4bba7b4ddbff0168a6766c4d8ed4bf18eaae00b111ff", kill_on_drop: false }` [INFO] [stdout] 64bec94553cc1c73aecb4bba7b4ddbff0168a6766c4d8ed4bf18eaae00b111ff [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+dae34b759e282c069aa28752564694effd121a63" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] f1ab8b9271f0f76c8bae86295e6db277664fee87465333c5cd4998bb2eff19c8 [INFO] running `Command { std: "docker" "start" "-a" "f1ab8b9271f0f76c8bae86295e6db277664fee87465333c5cd4998bb2eff19c8", kill_on_drop: false }` [INFO] [stderr] Copying to /tmp/fixit [INFO] [stderr] no edition found in manifest, probably 2015, skipping [INFO] running `Command { std: "docker" "inspect" "f1ab8b9271f0f76c8bae86295e6db277664fee87465333c5cd4998bb2eff19c8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f1ab8b9271f0f76c8bae86295e6db277664fee87465333c5cd4998bb2eff19c8", kill_on_drop: false }` [INFO] [stdout] f1ab8b9271f0f76c8bae86295e6db277664fee87465333c5cd4998bb2eff19c8