[INFO] fetching crate pushdown-automaton-macro 0.1.0...
[INFO] checking pushdown-automaton-macro-0.1.0 against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] extracting crate pushdown-automaton-macro 0.1.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate pushdown-automaton-macro 0.1.0 on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate pushdown-automaton-macro 0.1.0
[INFO] finished tweaking crates.io crate pushdown-automaton-macro 0.1.0
[INFO] tweaked toml for crates.io crate pushdown-automaton-macro 0.1.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c6a7aaec67505bdafac0f0b381518af31455e460404ae612d12728552e6000c6
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "c6a7aaec67505bdafac0f0b381518af31455e460404ae612d12728552e6000c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c6a7aaec67505bdafac0f0b381518af31455e460404ae612d12728552e6000c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6a7aaec67505bdafac0f0b381518af31455e460404ae612d12728552e6000c6", kill_on_drop: false }`
[INFO] [stdout] c6a7aaec67505bdafac0f0b381518af31455e460404ae612d12728552e6000c6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ff58c3ba1b6281d62d200ab01bb3d1ccc8986bf9e23607b171509a53c0352874
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "ff58c3ba1b6281d62d200ab01bb3d1ccc8986bf9e23607b171509a53c0352874", kill_on_drop: false }`
[INFO] [stderr]     Checking pushdown-automaton-macro v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:9:22
[INFO] [stdout]     |
[INFO] [stdout] 9   |             Push(Box<$sn>),
[INFO] [stdout]     |                      ^^^ help: use `dyn`: `dyn $sn`
[INFO] [stdout] ...
[INFO] [stdout] 193 | state_machine!(TestStateMachine; TestState; _a: &mut isize, _b: isize);
[INFO] [stdout]     | ----------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout]     = note: this warning originates in the macro `state_machine` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:10:24
[INFO] [stdout]     |
[INFO] [stdout] 10  |             Switch(Box<$sn>),
[INFO] [stdout]     |                        ^^^ help: use `dyn`: `dyn $sn`
[INFO] [stdout] ...
[INFO] [stdout] 193 | state_machine!(TestStateMachine; TestState; _a: &mut isize, _b: isize);
[INFO] [stdout]     | ----------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout]     = note: this warning originates in the macro `state_machine` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:41:34
[INFO] [stdout]     |
[INFO] [stdout] 41  |             state_stack: Vec<Box<$sn>>,
[INFO] [stdout]     |                                  ^^^ help: use `dyn`: `dyn $sn`
[INFO] [stdout] ...
[INFO] [stdout] 193 | state_machine!(TestStateMachine; TestState; _a: &mut isize, _b: isize);
[INFO] [stdout]     | ----------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout]     = note: this warning originates in the macro `state_machine` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:129:28
[INFO] [stdout]     |
[INFO] [stdout] 129 |                 state: Box<$sn>,
[INFO] [stdout]     |                            ^^^ help: use `dyn`: `dyn $sn`
[INFO] [stdout] ...
[INFO] [stdout] 193 | state_machine!(TestStateMachine; TestState; _a: &mut isize, _b: isize);
[INFO] [stdout]     | ----------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout]     = note: this warning originates in the macro `state_machine` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:145:28
[INFO] [stdout]     |
[INFO] [stdout] 145 |                 state: Box<$sn>,
[INFO] [stdout]     |                            ^^^ help: use `dyn`: `dyn $sn`
[INFO] [stdout] ...
[INFO] [stdout] 193 | state_machine!(TestStateMachine; TestState; _a: &mut isize, _b: isize);
[INFO] [stdout]     | ----------------------------------------------------------------------- in this macro invocation
[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 issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout]     = note: this warning originates in the macro `state_machine` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.40s
[INFO] running `Command { std: "docker" "inspect" "ff58c3ba1b6281d62d200ab01bb3d1ccc8986bf9e23607b171509a53c0352874", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff58c3ba1b6281d62d200ab01bb3d1ccc8986bf9e23607b171509a53c0352874", kill_on_drop: false }`
[INFO] [stdout] ff58c3ba1b6281d62d200ab01bb3d1ccc8986bf9e23607b171509a53c0352874