[INFO] cloning repository https://github.com/tikue/fizzbuzz
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tikue/fizzbuzz" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftikue%2Ffizzbuzz", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftikue%2Ffizzbuzz'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9ad97dd64d1f0f8135f44e116c4eb983d1de1000
[INFO] testing tikue/fizzbuzz against 1.54.0 for beta-1.55-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftikue%2Ffizzbuzz" "/workspace/builds/worker-100/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-100/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tikue/fizzbuzz on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-100/source/Cargo.toml
[INFO] crate git repo https://github.com/tikue/fizzbuzz already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 507d4f05569c41610a09c0f78af3922dee14cee19c6494be358d5f2d3b3c2d06
[INFO] running `Command { std: "docker" "start" "-a" "507d4f05569c41610a09c0f78af3922dee14cee19c6494be358d5f2d3b3c2d06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "507d4f05569c41610a09c0f78af3922dee14cee19c6494be358d5f2d3b3c2d06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "507d4f05569c41610a09c0f78af3922dee14cee19c6494be358d5f2d3b3c2d06", kill_on_drop: false }`
[INFO] [stdout] 507d4f05569c41610a09c0f78af3922dee14cee19c6494be358d5f2d3b3c2d06
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-100/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=warn" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 10db6a46cc380b96d491491b88bdad5bf86d2e4cd16e53cb024db3c3d8ea5f7a
[INFO] running `Command { std: "docker" "start" "-a" "10db6a46cc380b96d491491b88bdad5bf86d2e4cd16e53cb024db3c3d8ea5f7a", kill_on_drop: false }`
[INFO] [stderr]    Compiling fizzbuzz v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0412]: cannot find type `int` in this scope
[INFO] [stdout]   --> src/main.rs:34:16
[INFO] [stdout]    |
[INFO] [stdout] 34 | fn fizzbuzz(n: int) -> String {
[INFO] [stdout]    |                ^^^
[INFO] [stdout]    |                |
[INFO] [stdout]    |                not found in this scope
[INFO] [stdout]    |                help: perhaps you intended to use this type: `i32`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: rust-call ABI is subject to change
[INFO] [stdout]  --> src/main.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 |     extern "rust-call" fn call(&self, (_,): (B,)) -> A {
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #29625 <https://github.com/rust-lang/rust/issues/29625> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: box expression syntax is experimental; you can call `Box::new` instead
[INFO] [stdout]   --> src/main.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 |     box Const { x: a }
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #49733 <https://github.com/rust-lang/rust/issues/49733> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: rust-call ABI is subject to change
[INFO] [stdout]   --> src/main.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 23 |     extern "rust-call" fn call(&self, (a,): (A,)) -> A {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #29625 <https://github.com/rust-lang/rust/issues/29625> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: box expression syntax is experimental; you can call `Box::new` instead
[INFO] [stdout]   --> src/main.rs:42:29
[INFO] [stdout]    |
[INFO] [stdout] 42 |     let x = test(5, "buzz", box Id);
[INFO] [stdout]    |                             ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #49733 <https://github.com/rust-lang/rust/issues/49733> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:15:30
[INFO] [stdout]    |
[INFO] [stdout] 15 | fn const_<A, B>(a: A) -> Box<Fn<(B,), A> + Send> where A: Send + Clone {
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn<(B,), A> + Send`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:35:36
[INFO] [stdout]    |
[INFO] [stdout] 35 |     let test = |d, s: &str, x: Box<Fn<(String,), String> + Send>|
[INFO] [stdout]    |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn<(String,), String> + Send`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: the precise format of `Fn`-family traits' type parameters is subject to change
[INFO] [stdout]  --> src/main.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | impl<A, B> Fn<(B,), A> for Const<A> where A: Send + Clone {
[INFO] [stdout]   |            ^^^^^^^^^^^ help: use parenthetical notation instead: `Fn(B) -> ()`
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #29625 <https://github.com/rust-lang/rust/issues/29625> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0107]: this trait takes 1 generic argument but 2 generic arguments were supplied
[INFO] [stdout]   --> src/main.rs:6:12
[INFO] [stdout]    |
[INFO] [stdout] 6  | impl<A, B> Fn<(B,), A> for Const<A> where A: Send + Clone {
[INFO] [stdout]    |            ^^       - help: remove this generic argument
[INFO] [stdout]    |            |
[INFO] [stdout]    |            expected 1 generic argument
[INFO] [stdout]    |
[INFO] [stdout] note: trait defined here, with 1 generic parameter: `Args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: the precise format of `Fn`-family traits' type parameters is subject to change
[INFO] [stdout]   --> src/main.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 22 | impl<A> Fn<(A,), A> for Id {
[INFO] [stdout]    |         ^^^^^^^^^^^ help: use parenthetical notation instead: `Fn(A) -> ()`
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #29625 <https://github.com/rust-lang/rust/issues/29625> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0107]: this trait takes 1 generic argument but 2 generic arguments were supplied
[INFO] [stdout]   --> src/main.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 22 | impl<A> Fn<(A,), A> for Id {
[INFO] [stdout]    |         ^^       - help: remove this generic argument
[INFO] [stdout]    |         |
[INFO] [stdout]    |         expected 1 generic argument
[INFO] [stdout]    |
[INFO] [stdout] note: trait defined here, with 1 generic parameter: `Args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'fn_traits'
[INFO] [stdout]  --> src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | /     extern "rust-call" fn call(&self, (_,): (B,)) -> A {
[INFO] [stdout] 8 | |         self.x.clone()
[INFO] [stdout] 9 | |     }
[INFO] [stdout]   | |_____^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #29625 <https://github.com/rust-lang/rust/issues/29625> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'fn_traits'
[INFO] [stdout]   --> src/main.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 | /     extern "rust-call" fn call(&self, (a,): (A,)) -> A {
[INFO] [stdout] 24 | |         a
[INFO] [stdout] 25 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #29625 <https://github.com/rust-lang/rust/issues/29625> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: the precise format of `Fn`-family traits' type parameters is subject to change
[INFO] [stdout]   --> src/main.rs:15:30
[INFO] [stdout]    |
[INFO] [stdout] 15 | fn const_<A, B>(a: A) -> Box<Fn<(B,), A> + Send> where A: Send + Clone {
[INFO] [stdout]    |                              ^^^^^^^^^^^ help: use parenthetical notation instead: `Fn(B) -> ()`
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #29625 <https://github.com/rust-lang/rust/issues/29625> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0107]: this trait takes 1 generic argument but 2 generic arguments were supplied
[INFO] [stdout]   --> src/main.rs:15:30
[INFO] [stdout]    |
[INFO] [stdout] 15 | fn const_<A, B>(a: A) -> Box<Fn<(B,), A> + Send> where A: Send + Clone {
[INFO] [stdout]    |                              ^^       - help: remove this generic argument
[INFO] [stdout]    |                              |
[INFO] [stdout]    |                              expected 1 generic argument
[INFO] [stdout]    |
[INFO] [stdout] note: trait defined here, with 1 generic parameter: `Args`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0191]: the value of the associated type `Output` (from trait `FnOnce`) must be specified
[INFO] [stdout]   --> src/main.rs:15:30
[INFO] [stdout]    |
[INFO] [stdout] 15 | fn const_<A, B>(a: A) -> Box<Fn<(B,), A> + Send> where A: Send + Clone {
[INFO] [stdout]    |                              ^^^^^^^^^-^
[INFO] [stdout]    |                                       |
[INFO] [stdout]    |                                       help: specify the associated type: `Output = A`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 14 previous errors; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0107, E0191, E0412, E0658.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0107`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `fizzbuzz`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "10db6a46cc380b96d491491b88bdad5bf86d2e4cd16e53cb024db3c3d8ea5f7a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10db6a46cc380b96d491491b88bdad5bf86d2e4cd16e53cb024db3c3d8ea5f7a", kill_on_drop: false }`
[INFO] [stdout] 10db6a46cc380b96d491491b88bdad5bf86d2e4cd16e53cb024db3c3d8ea5f7a
