[INFO] fetching crate pebble-rust 0.1.0...
[INFO] testing pebble-rust-0.1.0 against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] extracting crate pebble-rust 0.1.0 into /workspace/builds/worker-73/source
[INFO] validating manifest of crates.io crate pebble-rust 0.1.0 on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "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-73/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b530c752592f3b003786505b5473737dcae2152edf834c222f9b0cdde72f01a7
[INFO] running `Command { std: "docker" "start" "-a" "b530c752592f3b003786505b5473737dcae2152edf834c222f9b0cdde72f01a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b530c752592f3b003786505b5473737dcae2152edf834c222f9b0cdde72f01a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b530c752592f3b003786505b5473737dcae2152edf834c222f9b0cdde72f01a7", kill_on_drop: false }`
[INFO] [stdout] b530c752592f3b003786505b5473737dcae2152edf834c222f9b0cdde72f01a7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fa8210955fb2d82788b3754fb41679c5eda06ddd31db9007c06a92b1048a88b0
[INFO] running `Command { std: "docker" "start" "-a" "fa8210955fb2d82788b3754fb41679c5eda06ddd31db9007c06a92b1048a88b0", kill_on_drop: false }`
[INFO] [stderr]    Compiling 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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.27s
[INFO] running `Command { std: "docker" "inspect" "fa8210955fb2d82788b3754fb41679c5eda06ddd31db9007c06a92b1048a88b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa8210955fb2d82788b3754fb41679c5eda06ddd31db9007c06a92b1048a88b0", kill_on_drop: false }`
[INFO] [stdout] fa8210955fb2d82788b3754fb41679c5eda06ddd31db9007c06a92b1048a88b0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2f12efe954cac0f90a9cb595529a4a55ae9e96f9c213d8aaccc879106178c0ba
[INFO] running `Command { std: "docker" "start" "-a" "2f12efe954cac0f90a9cb595529a4a55ae9e96f9c213d8aaccc879106178c0ba", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling 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: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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[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/722e1797249a965b6335aebd65d777f917e498f1/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-29e5e596e889a0aa.so, /opt/rustwide/rustup-home/toolchains/722e1797249a965b6335aebd65d777f917e498f1/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-29e5e596e889a0aa.rlib
[INFO] [stdout]    = note: second definition in the local crate (`pebble_rust`)
[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` due to 2 previous errors; 4 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "2f12efe954cac0f90a9cb595529a4a55ae9e96f9c213d8aaccc879106178c0ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f12efe954cac0f90a9cb595529a4a55ae9e96f9c213d8aaccc879106178c0ba", kill_on_drop: false }`
[INFO] [stdout] 2f12efe954cac0f90a9cb595529a4a55ae9e96f9c213d8aaccc879106178c0ba