[INFO] fetching crate pebble-rust 0.1.0...
[INFO] checking pebble-rust-0.1.0 against master#90442458ac46b1d5eed752c316da25450f67285b for pr-81477
[INFO] extracting crate pebble-rust 0.1.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate pebble-rust 0.1.0 on toolchain 90442458ac46b1d5eed752c316da25450f67285b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate pebble-rust 0.1.0
[INFO] finished tweaking crates.io crate pebble-rust 0.1.0
[INFO] tweaked toml for crates.io crate pebble-rust 0.1.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:ea7d7bff36b2ba8ce4de8bba1d2dea90376bc481f1a945a913994a8c492e40c1" "/opt/rustwide/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 652ff477488bd80d88827c2978de4c8dcbc03c370a383be61b00fa51aa099b68
[INFO] running `Command { std: "docker" "start" "-a" "652ff477488bd80d88827c2978de4c8dcbc03c370a383be61b00fa51aa099b68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "652ff477488bd80d88827c2978de4c8dcbc03c370a383be61b00fa51aa099b68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "652ff477488bd80d88827c2978de4c8dcbc03c370a383be61b00fa51aa099b68", kill_on_drop: false }`
[INFO] [stdout] 652ff477488bd80d88827c2978de4c8dcbc03c370a383be61b00fa51aa099b68
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "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:ea7d7bff36b2ba8ce4de8bba1d2dea90376bc481f1a945a913994a8c492e40c1" "/opt/rustwide/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 57dd0d7f6cf8724cbe8ccebbd8f403386bebd2f48a3ca713541793ee16dc9ec4
[INFO] running `Command { std: "docker" "start" "-a" "57dd0d7f6cf8724cbe8ccebbd8f403386bebd2f48a3ca713541793ee16dc9ec4", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking pebble-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/pebble/layer.rs:39:33
[INFO] [stdout]    |
[INFO] [stdout] 39 |     fn add_child(&self, layer: &ILayer);
[INFO] [stdout]    |                                 ^^^^^^ help: use `dyn`: `dyn ILayer`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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/pebble/layer.rs:53:33
[INFO] [stdout]    |
[INFO] [stdout] 53 |     fn add_child(&self, layer: &ILayer) {
[INFO] [stdout]    |                                 ^^^^^^ help: use `dyn`: `dyn ILayer`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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/pebble/layer.rs:89:33
[INFO] [stdout]    |
[INFO] [stdout] 89 |     fn add_child(&self, layer: &ILayer) {
[INFO] [stdout]    |                                 ^^^^^^ help: use `dyn`: `dyn ILayer`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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/pebble/layer.rs:126:33
[INFO] [stdout]     |
[INFO] [stdout] 126 |     fn add_child(&self, layer: &ILayer) {
[INFO] [stdout]     |                                 ^^^^^^ help: use `dyn`: `dyn ILayer`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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/pebble/layer.rs:39:33
[INFO] [stdout]    |
[INFO] [stdout] 39 |     fn add_child(&self, layer: &ILayer);
[INFO] [stdout]    |                                 ^^^^^^ help: use `dyn`: `dyn ILayer`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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/pebble/layer.rs:53:33
[INFO] [stdout]    |
[INFO] [stdout] 53 |     fn add_child(&self, layer: &ILayer) {
[INFO] [stdout]    |                                 ^^^^^^ help: use `dyn`: `dyn ILayer`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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/pebble/layer.rs:89:33
[INFO] [stdout]    |
[INFO] [stdout] 89 |     fn add_child(&self, layer: &ILayer) {
[INFO] [stdout]    |                                 ^^^^^^ help: use `dyn`: `dyn ILayer`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[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/pebble/layer.rs:126:33
[INFO] [stdout]     |
[INFO] [stdout] 126 |     fn add_child(&self, layer: &ILayer) {
[INFO] [stdout]     |                                 ^^^^^^ help: use `dyn`: `dyn ILayer`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0152]: found duplicate lang item `panic_impl`
[INFO] [stdout]   --> src/pebble/mod.rs:34:1
[INFO] [stdout]    |
[INFO] [stdout] 34 | fn panic(_info: &core::panic::PanicInfo) -> ! {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the lang item is first defined in crate `std` (which `test` depends on)
[INFO] [stdout]    = note: first definition in `std` loaded from /opt/rustwide/rustup-home/toolchains/90442458ac46b1d5eed752c316da25450f67285b/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-37fdd654777c296f.rlib
[INFO] [stdout]    = note: second definition in the local crate (`pebble_rust`)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0152`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `pebble-rust`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "57dd0d7f6cf8724cbe8ccebbd8f403386bebd2f48a3ca713541793ee16dc9ec4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "57dd0d7f6cf8724cbe8ccebbd8f403386bebd2f48a3ca713541793ee16dc9ec4", kill_on_drop: false }`
[INFO] [stdout] 57dd0d7f6cf8724cbe8ccebbd8f403386bebd2f48a3ca713541793ee16dc9ec4