[INFO] updating cached repository https://github.com/tikue/fizzbuzz
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 9ad97dd64d1f0f8135f44e116c4eb983d1de1000
[INFO] checking tikue/fizzbuzz against master#209b2be09fcaff937480d1fbbe8b31646e361c7a for pr-70917
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftikue%2Ffizzbuzz" "/workspace/builds/worker-7/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tikue/fizzbuzz on toolchain 209b2be09fcaff937480d1fbbe8b31646e361c7a
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/tikue/fizzbuzz
[INFO] finished tweaking git repo https://github.com/tikue/fizzbuzz
[INFO] tweaked toml for git repo https://github.com/tikue/fizzbuzz written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/tikue/fizzbuzz already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 1100d114fdb2a30701f49442eb98a7c6098c03575fd49f81861276fe7dfa54b6
[INFO] running `"docker" "start" "-a" "1100d114fdb2a30701f49442eb98a7c6098c03575fd49f81861276fe7dfa54b6"`
[INFO] [stderr]     Checking fizzbuzz v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0412]: cannot find type `int` in this scope
[INFO] [stderr]   --> src/main.rs:34:16
[INFO] [stderr]    |
[INFO] [stderr] 34 | fn fizzbuzz(n: int) -> String {
[INFO] [stderr]    |                ^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: rust-call ABI is subject to change
[INFO] [stderr]  --> src/main.rs:7:12
[INFO] [stderr]   |
[INFO] [stderr] 7 |     extern "rust-call" fn call(&self, (_,): (B,)) -> A {
[INFO] [stderr]   |            ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: see issue #29625 <https://github.com/rust-lang/rust/issues/29625> for more information
[INFO] [stderr]   = help: add `#![feature(unboxed_closures)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: box expression syntax is experimental; you can call `Box::new` instead
[INFO] [stderr]   --> src/main.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     box Const { x: a }
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #49733 <https://github.com/rust-lang/rust/issues/49733> for more information
[INFO] [stderr]    = help: add `#![feature(box_syntax)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: rust-call ABI is subject to change
[INFO] [stderr]   --> src/main.rs:23:12
[INFO] [stderr]    |
[INFO] [stderr] 23 |     extern "rust-call" fn call(&self, (a,): (A,)) -> A {
[INFO] [stderr]    |            ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #29625 <https://github.com/rust-lang/rust/issues/29625> for more information
[INFO] [stderr]    = help: add `#![feature(unboxed_closures)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: box expression syntax is experimental; you can call `Box::new` instead
[INFO] [stderr]   --> src/main.rs:42:29
[INFO] [stderr]    |
[INFO] [stderr] 42 |     let x = test(5, "buzz", box Id);
[INFO] [stderr]    |                             ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #49733 <https://github.com/rust-lang/rust/issues/49733> for more information
[INFO] [stderr]    = help: add `#![feature(box_syntax)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:15:30
[INFO] [stderr]    |
[INFO] [stderr] 15 | fn const_<A, B>(a: A) -> Box<Fn<(B,), A> + Send> where A: Send + Clone {
[INFO] [stderr]    |                              ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn<(B,), A> + Send`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:35:36
[INFO] [stderr]    |
[INFO] [stderr] 35 |     let test = |d, s: &str, x: Box<Fn<(String,), String> + Send>|
[INFO] [stderr]    |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn<(String,), String> + Send`
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'fn_traits'
[INFO] [stderr]  --> src/main.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | /     extern "rust-call" fn call(&self, (_,): (B,)) -> A {
[INFO] [stderr] 8 | |         self.x.clone()
[INFO] [stderr] 9 | |     }
[INFO] [stderr]   | |_____^
[INFO] [stderr]   |
[INFO] [stderr]   = note: see issue #29625 <https://github.com/rust-lang/rust/issues/29625> for more information
[INFO] [stderr]   = help: add `#![feature(fn_traits)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'fn_traits'
[INFO] [stderr]   --> src/main.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 | /     extern "rust-call" fn call(&self, (a,): (A,)) -> A {
[INFO] [stderr] 24 | |         a
[INFO] [stderr] 25 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #29625 <https://github.com/rust-lang/rust/issues/29625> for more information
[INFO] [stderr]    = help: add `#![feature(fn_traits)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: the precise format of `Fn`-family traits' type parameters is subject to change
[INFO] [stderr]  --> src/main.rs:6:12
[INFO] [stderr]   |
[INFO] [stderr] 6 | impl<A, B> Fn<(B,), A> for Const<A> where A: Send + Clone {
[INFO] [stderr]   |            ^^^^^^^^^^^ help: use parenthetical notation instead: `Fn(B,) -> ()`
[INFO] [stderr]   |
[INFO] [stderr]   = note: see issue #29625 <https://github.com/rust-lang/rust/issues/29625> for more information
[INFO] [stderr]   = help: add `#![feature(unboxed_closures)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0107]: wrong number of type arguments: expected 1, found 2
[INFO] [stderr]  --> src/main.rs:6:21
[INFO] [stderr]   |
[INFO] [stderr] 6 | impl<A, B> Fn<(B,), A> for Const<A> where A: Send + Clone {
[INFO] [stderr]   |                     ^ unexpected type argument
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: the precise format of `Fn`-family traits' type parameters is subject to change
[INFO] [stderr]   --> src/main.rs:15:30
[INFO] [stderr]    |
[INFO] [stderr] 15 | fn const_<A, B>(a: A) -> Box<Fn<(B,), A> + Send> where A: Send + Clone {
[INFO] [stderr]    |                              ^^ help: use parenthetical notation instead: `Fn(B,) -> ()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #29625 <https://github.com/rust-lang/rust/issues/29625> for more information
[INFO] [stderr]    = help: add `#![feature(unboxed_closures)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0107]: wrong number of type arguments: expected 1, found 2
[INFO] [stderr]   --> src/main.rs:15:39
[INFO] [stderr]    |
[INFO] [stderr] 15 | fn const_<A, B>(a: A) -> Box<Fn<(B,), A> + Send> where A: Send + Clone {
[INFO] [stderr]    |                                       ^ unexpected type argument
[INFO] [stderr] 
[INFO] [stderr] error[E0191]: the value of the associated type `Output` (from trait `std::ops::FnOnce`) must be specified
[INFO] [stderr]   --> src/main.rs:15:30
[INFO] [stderr]    |
[INFO] [stderr] 15 | fn const_<A, B>(a: A) -> Box<Fn<(B,), A> + Send> where A: Send + Clone {
[INFO] [stderr]    |                              ^^^^^^^^^-^
[INFO] [stderr]    |                                       |
[INFO] [stderr]    |                                       help: specify the associated type: `Output = A`
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: the precise format of `Fn`-family traits' type parameters is subject to change
[INFO] [stderr]   --> src/main.rs:22:9
[INFO] [stderr]    |
[INFO] [stderr] 22 | impl<A> Fn<(A,), A> for Id {
[INFO] [stderr]    |         ^^^^^^^^^^^ help: use parenthetical notation instead: `Fn(A,) -> ()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #29625 <https://github.com/rust-lang/rust/issues/29625> for more information
[INFO] [stderr]    = help: add `#![feature(unboxed_closures)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0107]: wrong number of type arguments: expected 1, found 2
[INFO] [stderr]   --> src/main.rs:22:18
[INFO] [stderr]    |
[INFO] [stderr] 22 | impl<A> Fn<(A,), A> for Id {
[INFO] [stderr]    |                  ^ unexpected type argument
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 14 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0107, E0191, E0412, E0658.
[INFO] [stderr] For more information about an error, try `rustc --explain E0107`.
[INFO] [stderr] error: could not compile `fizzbuzz`.
[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] [stderr] error[E0412]: cannot find type `int` in this scope
[INFO] [stderr]   --> src/main.rs:34:16
[INFO] [stderr]    |
[INFO] [stderr] 34 | fn fizzbuzz(n: int) -> String {
[INFO] [stderr]    |                ^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: rust-call ABI is subject to change
[INFO] [stderr]  --> src/main.rs:7:12
[INFO] [stderr]   |
[INFO] [stderr] 7 |     extern "rust-call" fn call(&self, (_,): (B,)) -> A {
[INFO] [stderr]   |            ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: see issue #29625 <https://github.com/rust-lang/rust/issues/29625> for more information
[INFO] [stderr]   = help: add `#![feature(unboxed_closures)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: box expression syntax is experimental; you can call `Box::new` instead
[INFO] [stderr]   --> src/main.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     box Const { x: a }
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #49733 <https://github.com/rust-lang/rust/issues/49733> for more information
[INFO] [stderr]    = help: add `#![feature(box_syntax)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: rust-call ABI is subject to change
[INFO] [stderr]   --> src/main.rs:23:12
[INFO] [stderr]    |
[INFO] [stderr] 23 |     extern "rust-call" fn call(&self, (a,): (A,)) -> A {
[INFO] [stderr]    |            ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #29625 <https://github.com/rust-lang/rust/issues/29625> for more information
[INFO] [stderr]    = help: add `#![feature(unboxed_closures)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: box expression syntax is experimental; you can call `Box::new` instead
[INFO] [stderr]   --> src/main.rs:42:29
[INFO] [stderr]    |
[INFO] [stderr] 42 |     let x = test(5, "buzz", box Id);
[INFO] [stderr]    |                             ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #49733 <https://github.com/rust-lang/rust/issues/49733> for more information
[INFO] [stderr]    = help: add `#![feature(box_syntax)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:15:30
[INFO] [stderr]    |
[INFO] [stderr] 15 | fn const_<A, B>(a: A) -> Box<Fn<(B,), A> + Send> where A: Send + Clone {
[INFO] [stderr]    |                              ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn<(B,), A> + Send`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:35:36
[INFO] [stderr]    |
[INFO] [stderr] 35 |     let test = |d, s: &str, x: Box<Fn<(String,), String> + Send>|
[INFO] [stderr]    |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn<(String,), String> + Send`
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'fn_traits'
[INFO] [stderr]  --> src/main.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | /     extern "rust-call" fn call(&self, (_,): (B,)) -> A {
[INFO] [stderr] 8 | |         self.x.clone()
[INFO] [stderr] 9 | |     }
[INFO] [stderr]   | |_____^
[INFO] [stderr]   |
[INFO] [stderr]   = note: see issue #29625 <https://github.com/rust-lang/rust/issues/29625> for more information
[INFO] [stderr]   = help: add `#![feature(fn_traits)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'fn_traits'
[INFO] [stderr]   --> src/main.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 | /     extern "rust-call" fn call(&self, (a,): (A,)) -> A {
[INFO] [stderr] 24 | |         a
[INFO] [stderr] 25 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #29625 <https://github.com/rust-lang/rust/issues/29625> for more information
[INFO] [stderr]    = help: add `#![feature(fn_traits)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: the precise format of `Fn`-family traits' type parameters is subject to change
[INFO] [stderr]  --> src/main.rs:6:12
[INFO] [stderr]   |
[INFO] [stderr] 6 | impl<A, B> Fn<(B,), A> for Const<A> where A: Send + Clone {
[INFO] [stderr]   |            ^^^^^^^^^^^ help: use parenthetical notation instead: `Fn(B,) -> ()`
[INFO] [stderr]   |
[INFO] [stderr]   = note: see issue #29625 <https://github.com/rust-lang/rust/issues/29625> for more information
[INFO] [stderr]   = help: add `#![feature(unboxed_closures)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0107]: wrong number of type arguments: expected 1, found 2
[INFO] [stderr]  --> src/main.rs:6:21
[INFO] [stderr]   |
[INFO] [stderr] 6 | impl<A, B> Fn<(B,), A> for Const<A> where A: Send + Clone {
[INFO] [stderr]   |                     ^ unexpected type argument
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: the precise format of `Fn`-family traits' type parameters is subject to change
[INFO] [stderr]   --> src/main.rs:15:30
[INFO] [stderr]    |
[INFO] [stderr] 15 | fn const_<A, B>(a: A) -> Box<Fn<(B,), A> + Send> where A: Send + Clone {
[INFO] [stderr]    |                              ^^ help: use parenthetical notation instead: `Fn(B,) -> ()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #29625 <https://github.com/rust-lang/rust/issues/29625> for more information
[INFO] [stderr]    = help: add `#![feature(unboxed_closures)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0107]: wrong number of type arguments: expected 1, found 2
[INFO] [stderr]   --> src/main.rs:15:39
[INFO] [stderr]    |
[INFO] [stderr] 15 | fn const_<A, B>(a: A) -> Box<Fn<(B,), A> + Send> where A: Send + Clone {
[INFO] [stderr]    |                                       ^ unexpected type argument
[INFO] [stderr] 
[INFO] [stderr] error[E0191]: the value of the associated type `Output` (from trait `std::ops::FnOnce`) must be specified
[INFO] [stderr]   --> src/main.rs:15:30
[INFO] [stderr]    |
[INFO] [stderr] 15 | fn const_<A, B>(a: A) -> Box<Fn<(B,), A> + Send> where A: Send + Clone {
[INFO] [stderr]    |                              ^^^^^^^^^-^
[INFO] [stderr]    |                                       |
[INFO] [stderr]    |                                       help: specify the associated type: `Output = A`
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: the precise format of `Fn`-family traits' type parameters is subject to change
[INFO] [stderr]   --> src/main.rs:22:9
[INFO] [stderr]    |
[INFO] [stderr] 22 | impl<A> Fn<(A,), A> for Id {
[INFO] [stderr]    |         ^^^^^^^^^^^ help: use parenthetical notation instead: `Fn(A,) -> ()`
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #29625 <https://github.com/rust-lang/rust/issues/29625> for more information
[INFO] [stderr]    = help: add `#![feature(unboxed_closures)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0107]: wrong number of type arguments: expected 1, found 2
[INFO] [stderr]   --> src/main.rs:22:18
[INFO] [stderr]    |
[INFO] [stderr] 22 | impl<A> Fn<(A,), A> for Id {
[INFO] [stderr]    |                  ^ unexpected type argument
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 14 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0107, E0191, E0412, E0658.
[INFO] [stderr] For more information about an error, try `rustc --explain E0107`.
[INFO] [stderr] error: could not compile `fizzbuzz`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "1100d114fdb2a30701f49442eb98a7c6098c03575fd49f81861276fe7dfa54b6"`
[INFO] running `"docker" "rm" "-f" "1100d114fdb2a30701f49442eb98a7c6098c03575fd49f81861276fe7dfa54b6"`
[INFO] [stdout] 1100d114fdb2a30701f49442eb98a7c6098c03575fd49f81861276fe7dfa54b6
