[INFO] cloning repository https://github.com/freeuni-oxidizers/traitobject_poc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/freeuni-oxidizers/traitobject_poc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffreeuni-oxidizers%2Ftraitobject_poc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffreeuni-oxidizers%2Ftraitobject_poc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 81499ec6bc656b9e768608a3feab742b6b3d7fa0
[INFO] checking freeuni-oxidizers/traitobject_poc against try#388b725dea7416978ab58ab1f908139d530308a7 for pr-99943
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffreeuni-oxidizers%2Ftraitobject_poc" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/freeuni-oxidizers/traitobject_poc on toolchain 388b725dea7416978ab58ab1f908139d530308a7
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+388b725dea7416978ab58ab1f908139d530308a7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/freeuni-oxidizers/traitobject_poc
[INFO] finished tweaking git repo https://github.com/freeuni-oxidizers/traitobject_poc
[INFO] tweaked toml for git repo https://github.com/freeuni-oxidizers/traitobject_poc written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/freeuni-oxidizers/traitobject_poc already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+388b725dea7416978ab58ab1f908139d530308a7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stdout] 35f5477e43408abe391f68c3a12dac448cd89b971961bb899a0e79a4d8556d98
[INFO] running `Command { std: "docker" "start" "-a" "35f5477e43408abe391f68c3a12dac448cd89b971961bb899a0e79a4d8556d98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "35f5477e43408abe391f68c3a12dac448cd89b971961bb899a0e79a4d8556d98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "35f5477e43408abe391f68c3a12dac448cd89b971961bb899a0e79a4d8556d98", kill_on_drop: false }`
[INFO] [stdout] 35f5477e43408abe391f68c3a12dac448cd89b971961bb899a0e79a4d8556d98
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:3d1cd00eb6e6ea2a7969240779edeaeff35b24be85036c63b883ba933028a15f" "/opt/rustwide/cargo-home/bin/cargo" "+388b725dea7416978ab58ab1f908139d530308a7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f65486bdf2a02b0167e58ec08c2343a0ff993f502cbe5938c99f2d85b2d869bb
[INFO] running `Command { std: "docker" "start" "-a" "f65486bdf2a02b0167e58ec08c2343a0ff993f502cbe5938c99f2d85b2d869bb", 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling syn v1.0.90
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling libc v0.2.121
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling generic-array v0.14.5
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling nix v0.15.0
[INFO] [stderr]    Compiling heapless v0.5.6
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
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[INFO] [stderr]     Checking hash32 v0.1.1
[INFO] [stderr]     Checking nom v2.2.1
[INFO] [stderr]    Compiling build_id v0.2.1
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[INFO] [stderr]     Checking cfg-if v0.1.10
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[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking once_cell v1.10.0
[INFO] [stderr]    Compiling relative v0.2.2
[INFO] [stderr]    Compiling erased-serde v0.3.20
[INFO] [stderr]     Checking as-slice v0.1.5
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[INFO] [stderr]    Compiling serde_json v1.0.79
[INFO] [stderr]     Checking ryu v1.0.9
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[INFO] [stderr]     Checking serde_traitobject v0.2.7
[INFO] [stdout] error[E0059]: type parameter to bare `std::ops::FnOnce` trait must be a tuple
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde_traitobject-0.2.7/src/convenience.rs:150:20
[INFO] [stdout]     |
[INFO] [stdout] 150 | impl<A, F: ?Sized> ops::FnOnce<A> for Box<F>
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^ the trait `Tuple` is not implemented for `A`
[INFO] [stdout]     |
[INFO] [stdout] note: required by a bound in `std::ops::FnOnce`
[INFO] [stdout] help: consider further restricting type parameter `A`
[INFO] [stdout]     |
[INFO] [stdout] 152 |     F: FnOnce<A>, A: std::marker::Tuple
[INFO] [stdout]     |                 ~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0059]: type parameter to bare `std::ops::FnMut` trait must be a tuple
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde_traitobject-0.2.7/src/convenience.rs:159:20
[INFO] [stdout]     |
[INFO] [stdout] 159 | impl<A, F: ?Sized> ops::FnMut<A> for Box<F>
[INFO] [stdout]     |                    ^^^^^^^^^^^^^ the trait `Tuple` is not implemented for `A`
[INFO] [stdout]     |
[INFO] [stdout] note: required by a bound in `std::ops::FnMut`
[INFO] [stdout] help: consider further restricting type parameter `A`
[INFO] [stdout]     |
[INFO] [stdout] 161 |     F: FnMut<A>, A: std::marker::Tuple
[INFO] [stdout]     |                ~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0059]: type parameter to bare `std::ops::Fn` trait must be a tuple
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde_traitobject-0.2.7/src/convenience.rs:167:20
[INFO] [stdout]     |
[INFO] [stdout] 167 | impl<A, F: ?Sized> ops::Fn<A> for Box<F>
[INFO] [stdout]     |                    ^^^^^^^^^^ the trait `Tuple` is not implemented for `A`
[INFO] [stdout]     |
[INFO] [stdout] note: required by a bound in `std::ops::Fn`
[INFO] [stdout] help: consider further restricting type parameter `A`
[INFO] [stdout]     |
[INFO] [stdout] 169 |     F: Fn<A>, A: std::marker::Tuple
[INFO] [stdout]     |             ~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0059]: type parameter to bare `std::ops::FnOnce` trait must be a tuple
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde_traitobject-0.2.7/src/convenience.rs:689:25
[INFO] [stdout]     |
[INFO] [stdout] 689 | pub trait FnOnce<Args>: ops::FnOnce<Args> + Serialize + Deserialize {}
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^ the trait `Tuple` is not implemented for `Args`
[INFO] [stdout]     |
[INFO] [stdout] note: required by a bound in `std::ops::FnOnce`
[INFO] [stdout] help: consider restricting type parameter `Args`
[INFO] [stdout]     |
[INFO] [stdout] 689 | pub trait FnOnce<Args: std::marker::Tuple>: ops::FnOnce<Args> + Serialize + Deserialize {}
[INFO] [stdout]     |                      ++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0059]: type parameter to bare `std::ops::FnOnce` trait must be a tuple
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde_traitobject-0.2.7/src/convenience.rs:690:51
[INFO] [stdout]     |
[INFO] [stdout] 690 | impl<T: ?Sized, Args> FnOnce<Args> for T where T: ops::FnOnce<Args> + Serialize + Deserialize {}
[INFO] [stdout]     |                                                   ^^^^^^^^^^^^^^^^^ the trait `Tuple` is not implemented for `Args`
[INFO] [stdout]     |
[INFO] [stdout] note: required by a bound in `std::ops::FnOnce`
[INFO] [stdout] help: consider further restricting type parameter `Args`
[INFO] [stdout]     |
[INFO] [stdout] 690 | impl<T: ?Sized, Args> FnOnce<Args> for T where T: ops::FnOnce<Args> + Serialize + Deserialize, Args: std::marker::Tuple {}
[INFO] [stdout]     |                                                                                              ++++++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0059]: type parameter to bare `std::ops::FnMut` trait must be a tuple
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde_traitobject-0.2.7/src/convenience.rs:746:24
[INFO] [stdout]     |
[INFO] [stdout] 746 | pub trait FnMut<Args>: ops::FnMut<Args> + Serialize + Deserialize {}
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^ the trait `Tuple` is not implemented for `Args`
[INFO] [stdout]     |
[INFO] [stdout] note: required by a bound in `std::ops::FnMut`
[INFO] [stdout] help: consider restricting type parameter `Args`
[INFO] [stdout]     |
[INFO] [stdout] 746 | pub trait FnMut<Args: std::marker::Tuple>: ops::FnMut<Args> + Serialize + Deserialize {}
[INFO] [stdout]     |                     ++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0059]: type parameter to bare `std::ops::FnMut` trait must be a tuple
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde_traitobject-0.2.7/src/convenience.rs:747:50
[INFO] [stdout]     |
[INFO] [stdout] 747 | impl<T: ?Sized, Args> FnMut<Args> for T where T: ops::FnMut<Args> + Serialize + Deserialize {}
[INFO] [stdout]     |                                                  ^^^^^^^^^^^^^^^^ the trait `Tuple` is not implemented for `Args`
[INFO] [stdout]     |
[INFO] [stdout] note: required by a bound in `std::ops::FnMut`
[INFO] [stdout] help: consider further restricting type parameter `Args`
[INFO] [stdout]     |
[INFO] [stdout] 747 | impl<T: ?Sized, Args> FnMut<Args> for T where T: ops::FnMut<Args> + Serialize + Deserialize, Args: std::marker::Tuple {}
[INFO] [stdout]     |                                                                                            ++++++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0059]: type parameter to bare `std::ops::Fn` trait must be a tuple
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde_traitobject-0.2.7/src/convenience.rs:803:21
[INFO] [stdout]     |
[INFO] [stdout] 803 | pub trait Fn<Args>: ops::Fn<Args> + Serialize + Deserialize {}
[INFO] [stdout]     |                     ^^^^^^^^^^^^^ the trait `Tuple` is not implemented for `Args`
[INFO] [stdout]     |
[INFO] [stdout] note: required by a bound in `std::ops::Fn`
[INFO] [stdout] help: consider restricting type parameter `Args`
[INFO] [stdout]     |
[INFO] [stdout] 803 | pub trait Fn<Args: std::marker::Tuple>: ops::Fn<Args> + Serialize + Deserialize {}
[INFO] [stdout]     |                  ++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0059]: type parameter to bare `std::ops::Fn` trait must be a tuple
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde_traitobject-0.2.7/src/convenience.rs:804:47
[INFO] [stdout]     |
[INFO] [stdout] 804 | impl<T: ?Sized, Args> Fn<Args> for T where T: ops::Fn<Args> + Serialize + Deserialize {}
[INFO] [stdout]     |                                               ^^^^^^^^^^^^^ the trait `Tuple` is not implemented for `Args`
[INFO] [stdout]     |
[INFO] [stdout] note: required by a bound in `std::ops::Fn`
[INFO] [stdout] help: consider further restricting type parameter `Args`
[INFO] [stdout]     |
[INFO] [stdout] 804 | impl<T: ?Sized, Args> Fn<Args> for T where T: ops::Fn<Args> + Serialize + Deserialize, Args: std::marker::Tuple {}
[INFO] [stdout]     |                                                                                      ++++++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0059]: type parameter to bare `std::ops::FnOnce` trait must be a tuple
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde_traitobject-0.2.7/src/convenience.rs:154:16
[INFO] [stdout]     |
[INFO] [stdout] 154 |     type Output = F::Output;
[INFO] [stdout]     |                   ^^^^^^^^^ the trait `Tuple` is not implemented for `A`
[INFO] [stdout]     |
[INFO] [stdout] note: required by a bound in `std::ops::FnOnce`
[INFO] [stdout] help: consider further restricting type parameter `A`
[INFO] [stdout]     |
[INFO] [stdout] 152 |     F: FnOnce<A>, A: std::marker::Tuple
[INFO] [stdout]     |                 ~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: functions with the "rust-call" ABI must take a single non-self tuple argument
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde_traitobject-0.2.7/src/convenience.rs:155:24
[INFO] [stdout]     |
[INFO] [stdout] 155 |     extern "rust-call" fn call_once(self, args: A) -> Self::Output {
[INFO] [stdout]     |                           ^^^^^^^^^ the trait `Tuple` is not implemented for `A`
[INFO] [stdout]     |
[INFO] [stdout] help: consider further restricting type parameter `A`
[INFO] [stdout]     |
[INFO] [stdout] 152 |     F: FnOnce<A>, A: std::marker::Tuple
[INFO] [stdout]     |                 ~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: functions with the "rust-call" ABI must take a single non-self tuple argument
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde_traitobject-0.2.7/src/convenience.rs:163:24
[INFO] [stdout]     |
[INFO] [stdout] 163 |     extern "rust-call" fn call_mut(&mut self, args: A) -> Self::Output {
[INFO] [stdout]     |                           ^^^^^^^^ the trait `Tuple` is not implemented for `A`
[INFO] [stdout]     |
[INFO] [stdout] help: consider further restricting type parameter `A`
[INFO] [stdout]     |
[INFO] [stdout] 161 |     F: FnMut<A>, A: std::marker::Tuple
[INFO] [stdout]     |                ~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: functions with the "rust-call" ABI must take a single non-self tuple argument
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde_traitobject-0.2.7/src/convenience.rs:171:24
[INFO] [stdout]     |
[INFO] [stdout] 171 |     extern "rust-call" fn call(&self, args: A) -> Self::Output {
[INFO] [stdout]     |                           ^^^^ the trait `Tuple` is not implemented for `A`
[INFO] [stdout]     |
[INFO] [stdout] help: consider further restricting type parameter `A`
[INFO] [stdout]     |
[INFO] [stdout] 169 |     F: Fn<A>, A: std::marker::Tuple
[INFO] [stdout]     |             ~~~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 13 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0059, E0277.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0059`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `serde_traitobject` due to 14 previous errors
[INFO] running `Command { std: "docker" "inspect" "f65486bdf2a02b0167e58ec08c2343a0ff993f502cbe5938c99f2d85b2d869bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f65486bdf2a02b0167e58ec08c2343a0ff993f502cbe5938c99f2d85b2d869bb", kill_on_drop: false }`
[INFO] [stdout] f65486bdf2a02b0167e58ec08c2343a0ff993f502cbe5938c99f2d85b2d869bb