[INFO] cloning repository https://github.com/Vengarioth/hydron
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Vengarioth/hydron" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVengarioth%2Fhydron", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVengarioth%2Fhydron'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d454d499276d1259751b101ae76661db9cd07c54
[INFO] checking Vengarioth/hydron against master#e6e4f7ed1589e03bc2f6c5931c1a72e7947e8682 for beta-170-4
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVengarioth%2Fhydron" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Vengarioth/hydron on toolchain e6e4f7ed1589e03bc2f6c5931c1a72e7947e8682
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e6e4f7ed1589e03bc2f6c5931c1a72e7947e8682" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Vengarioth/hydron
[INFO] finished tweaking git repo https://github.com/Vengarioth/hydron
[INFO] tweaked toml for git repo https://github.com/Vengarioth/hydron written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Vengarioth/hydron already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e6e4f7ed1589e03bc2f6c5931c1a72e7947e8682" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+e6e4f7ed1589e03bc2f6c5931c1a72e7947e8682" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8abfa1907e77a7b84c756cae64dd4dba0a89a7c4705b98079a4b0342e1047e3e
[INFO] running `Command { std: "docker" "start" "-a" "8abfa1907e77a7b84c756cae64dd4dba0a89a7c4705b98079a4b0342e1047e3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8abfa1907e77a7b84c756cae64dd4dba0a89a7c4705b98079a4b0342e1047e3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8abfa1907e77a7b84c756cae64dd4dba0a89a7c4705b98079a4b0342e1047e3e", kill_on_drop: false }`
[INFO] [stdout] 8abfa1907e77a7b84c756cae64dd4dba0a89a7c4705b98079a4b0342e1047e3e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+e6e4f7ed1589e03bc2f6c5931c1a72e7947e8682" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 44e089f772c3e6b073bc47fab9ec81d68f4342404d1c381e42e2deb91bbb8d65
[INFO] running `Command { std: "docker" "start" "-a" "44e089f772c3e6b073bc47fab9ec81d68f4342404d1c381e42e2deb91bbb8d65", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.42
[INFO] [stderr]    Compiling bitflags v1.0.3
[INFO] [stderr]    Compiling cc v1.0.18
[INFO] [stderr]     Checking lazy_static v1.0.1
[INFO] [stderr]    Compiling khronos_api v2.2.0
[INFO] [stderr]    Compiling cfg-if v0.1.4
[INFO] [stderr]     Checking downcast-rs v1.0.3
[INFO] [stderr]    Compiling xml-rs v0.7.0
[INFO] [stderr]    Compiling log v0.4.3
[INFO] [stderr]    Compiling nix v0.11.0
[INFO] [stderr]    Compiling pkg-config v0.3.11
[INFO] [stderr]     Checking stable_deref_trait v1.1.0
[INFO] [stderr]     Checking owning_ref v0.3.3
[INFO] [stderr]     Checking remove_dir_all v0.5.1
[INFO] [stderr]     Checking smallvec v0.6.2
[INFO] [stderr]    Compiling num-traits v0.2.5
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking lock_api v0.1.3
[INFO] [stderr]     Checking rand v0.4.2
[INFO] [stderr]     Checking memmap v0.6.2
[INFO] [stderr]     Checking byteorder v1.2.3
[INFO] [stderr]    Compiling wayland-scanner v0.20.10
[INFO] [stderr]    Compiling gl_generator v0.9.0
[INFO] [stderr]    Compiling x11-dl v2.18.0
[INFO] [stderr]    Compiling memchr v2.0.1
[INFO] [stderr]     Checking tempfile v3.0.2
[INFO] [stderr]     Checking parking_lot_core v0.2.14
[INFO] [stderr]    Compiling libloading v0.5.0
[INFO] [stderr]     Checking parking_lot v0.6.2
[INFO] [stderr]     Checking shared_library v0.1.9
[INFO] [stderr]    Compiling wayland-client v0.20.10
[INFO] [stderr]    Compiling wayland-protocols v0.20.10
[INFO] [stderr]    Compiling cgmath v0.16.1
[INFO] [stderr]    Compiling glutin v0.17.0
[INFO] [stderr]     Checking dlib v0.4.1
[INFO] [stderr]     Checking wayland-sys v0.20.10
[INFO] [stderr]     Checking wayland-commons v0.20.10
[INFO] [stderr]    Compiling gl v0.10.0
[INFO] [stderr]     Checking percent-encoding v1.0.1
[INFO] [stderr]    Compiling proc-macro2 v0.4.6
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking osmesa-sys v0.1.2
[INFO] [stderr]    Compiling nom v4.0.0
[INFO] [stderr]     Checking unicode-xid v0.1.0
[INFO] [stderr]     Checking approx v0.1.1
[INFO] [stderr]     Checking hydron-ui v0.1.0 (/opt/rustwide/workdir/hydron-ui)
[INFO] [stdout] error[E0635]: unknown feature `vec_remove_item`
[INFO] [stdout]  --> hydron-ui/src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(vec_remove_item)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> hydron-ui/src/component.rs:4:27
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub children: Vec<Box<VirtualElement>>,
[INFO] [stdout]   |                           ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub children: Vec<Box<dyn VirtualElement>>,
[INFO] [stdout]   |                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> hydron-ui/src/surface.rs:70:23
[INFO] [stdout]    |
[INFO] [stdout] 70 |     elements: Vec<Box<LayoutElement>>,
[INFO] [stdout]    |                       ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 70 |     elements: Vec<Box<dyn LayoutElement>>,
[INFO] [stdout]    |                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> hydron-ui/src/component.rs:18:33
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn render(&mut self) -> Box<VirtualElement>;
[INFO] [stdout]    |                                 ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn render(&mut self) -> Box<dyn VirtualElement>;
[INFO] [stdout]    |                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> hydron-ui/src/surface.rs:170:43
[INFO] [stdout]     |
[INFO] [stdout] 170 |     pub fn insert(&mut self, element: Box<LayoutElement>) -> usize {
[INFO] [stdout]     |                                           ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 170 |     pub fn insert(&mut self, element: Box<dyn LayoutElement>) -> usize {
[INFO] [stdout]     |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `vec_remove_item`
[INFO] [stdout]  --> hydron-ui/src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(vec_remove_item)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> hydron-ui/src/component.rs:4:27
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub children: Vec<Box<VirtualElement>>,
[INFO] [stdout]   |                           ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub children: Vec<Box<dyn VirtualElement>>,
[INFO] [stdout]   |                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> hydron-ui/src/surface.rs:70:23
[INFO] [stdout]    |
[INFO] [stdout] 70 |     elements: Vec<Box<LayoutElement>>,
[INFO] [stdout]    |                       ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 70 |     elements: Vec<Box<dyn LayoutElement>>,
[INFO] [stdout]    |                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> hydron-ui/src/component.rs:18:33
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn render(&mut self) -> Box<VirtualElement>;
[INFO] [stdout]    |                                 ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn render(&mut self) -> Box<dyn VirtualElement>;
[INFO] [stdout]    |                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> hydron-ui/src/surface.rs:170:43
[INFO] [stdout]     |
[INFO] [stdout] 170 |     pub fn insert(&mut self, element: Box<LayoutElement>) -> usize {
[INFO] [stdout]     |                                           ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 170 |     pub fn insert(&mut self, element: Box<dyn LayoutElement>) -> usize {
[INFO] [stdout]     |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `remove_item` found for struct `Vec<usize>` in the current scope
[INFO] [stdout]    --> hydron-ui/src/surface.rs:202:45
[INFO] [stdout]     |
[INFO] [stdout] 202 |                 self.children[parent_index].remove_item(&index);
[INFO] [stdout]     |                                             ^^^^^^^^^^^ help: there is a method with a similar name: `remove`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0599, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `remove_item` found for struct `Vec<usize>` in the current scope
[INFO] [stdout]    --> hydron-ui/src/surface.rs:202:45
[INFO] [stdout]     |
[INFO] [stdout] 202 |                 self.children[parent_index].remove_item(&index);
[INFO] [stdout]     |                                             ^^^^^^^^^^^ help: there is a method with a similar name: `remove`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `hydron-ui` (lib) due to 3 previous errors; 4 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to 2 previous errors; 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0599, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `hydron-ui` (lib test) due to 3 previous errors; 4 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "44e089f772c3e6b073bc47fab9ec81d68f4342404d1c381e42e2deb91bbb8d65", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44e089f772c3e6b073bc47fab9ec81d68f4342404d1c381e42e2deb91bbb8d65", kill_on_drop: false }`
[INFO] [stdout] 44e089f772c3e6b073bc47fab9ec81d68f4342404d1c381e42e2deb91bbb8d65
