[INFO] fetching crate fall 0.1.2...
[INFO] checking fall-0.1.2 against nightly-2024-02-05 for check-cfg
[INFO] extracting crate fall 0.1.2 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate fall 0.1.2 on toolchain nightly-2024-02-05
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate fall 0.1.2
[INFO] finished tweaking crates.io crate fall 0.1.2
[INFO] tweaked toml for crates.io crate fall 0.1.2 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded lalrpop-util v0.16.3
[INFO] [stderr]   Downloaded ordermap v0.3.5
[INFO] [stderr]   Downloaded ena v0.11.0
[INFO] [stderr]   Downloaded ascii-canvas v1.0.0
[INFO] [stderr]   Downloaded string_cache v0.7.5
[INFO] [stderr]   Downloaded docopt v1.1.1
[INFO] [stderr]   Downloaded petgraph v0.4.13
[INFO] [stderr]   Downloaded lalrpop v0.16.3
[INFO] [stderr]   Downloaded frunk_proc_macros_impl v0.0.2
[INFO] [stderr]   Downloaded frunk_derives v0.2.4
[INFO] [stderr]   Downloaded frunk_proc_macro_helpers v0.0.2
[INFO] [stderr]   Downloaded frunk_proc_macros v0.0.2
[INFO] [stderr]   Downloaded frunk v0.2.4
[INFO] [stderr]   Downloaded frunk_core v0.2.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-02-05" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a688faec6f1e827e059392fe0644be5120cd5b7d9a6378f3045f89ac05606e8e
[INFO] running `Command { std: "docker" "start" "-a" "a688faec6f1e827e059392fe0644be5120cd5b7d9a6378f3045f89ac05606e8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a688faec6f1e827e059392fe0644be5120cd5b7d9a6378f3045f89ac05606e8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a688faec6f1e827e059392fe0644be5120cd5b7d9a6378f3045f89ac05606e8e", kill_on_drop: false }`
[INFO] [stdout] a688faec6f1e827e059392fe0644be5120cd5b7d9a6378f3045f89ac05606e8e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-02-05" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6810768bf251b905f0b81301b437be5f4b807fa7e9e34925c4b7ac216b379828
[INFO] running `Command { std: "docker" "start" "-a" "6810768bf251b905f0b81301b437be5f4b807fa7e9e34925c4b7ac216b379828", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling typenum v1.17.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling byte-tools v0.3.1
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling proc-macro-hack v0.5.20+deprecated
[INFO] [stderr]    Compiling frunk_core v0.2.4
[INFO] [stderr]     Checking unicode-xid v0.1.0
[INFO] [stderr]    Compiling fake-simd v0.1.2
[INFO] [stderr]    Compiling either v1.9.0
[INFO] [stderr]    Compiling opaque-debug v0.2.3
[INFO] [stderr]    Compiling precomputed-hash v0.1.1
[INFO] [stderr]    Compiling fixedbitset v0.1.9
[INFO] [stderr]    Compiling bit-vec v0.6.3
[INFO] [stderr]    Compiling serde v1.0.196
[INFO] [stderr]    Compiling block-padding v0.1.5
[INFO] [stderr]    Compiling new_debug_unreachable v1.0.4
[INFO] [stderr]    Compiling ordermap v0.3.5
[INFO] [stderr]    Compiling term v0.4.6
[INFO] [stderr]    Compiling ena v0.11.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling regex-syntax v0.6.29
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling lalrpop-util v0.16.3
[INFO] [stderr]    Compiling diff v0.1.13
[INFO] [stderr]    Compiling bit-set v0.5.3
[INFO] [stderr]     Checking backtrace v0.3.69
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling petgraph v0.4.13
[INFO] [stderr]    Compiling ascii-canvas v1.0.0
[INFO] [stderr]     Checking quote v0.6.13
[INFO] [stderr]    Compiling generic-array v0.12.4
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling digest v0.8.1
[INFO] [stderr]    Compiling string_cache_codegen v0.4.4
[INFO] [stderr]    Compiling block-buffer v0.7.3
[INFO] [stderr]    Compiling sha2 v0.8.2
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]    Compiling string_cache v0.7.5
[INFO] [stderr]    Compiling frunk_proc_macro_helpers v0.0.2
[INFO] [stderr]    Compiling frunk_proc_macros_impl v0.0.2
[INFO] [stderr]    Compiling frunk_derives v0.2.4
[INFO] [stderr]    Compiling docopt v1.1.1
[INFO] [stderr]     Checking frunk_proc_macros v0.0.2
[INFO] [stderr]     Checking frunk v0.2.4
[INFO] [stderr]    Compiling lalrpop v0.16.3
[INFO] [stderr]    Compiling fall v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/fall-0cee78208f93d33a/out/grammar.rs:4966:5
[INFO] [stdout]      |
[INFO] [stdout] 4966 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 4966 -     (__0)
[INFO] [stdout] 4966 +     __0
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/fall-0cee78208f93d33a/out/grammar.rs:4977:5
[INFO] [stdout]      |
[INFO] [stdout] 4977 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 4977 -     (__0)
[INFO] [stdout] 4977 +     __0
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/fall-0cee78208f93d33a/out/grammar.rs:4988:5
[INFO] [stdout]      |
[INFO] [stdout] 4988 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 4988 -     (__0)
[INFO] [stdout] 4988 +     __0
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/fall-0cee78208f93d33a/out/grammar.rs:4999:5
[INFO] [stdout]      |
[INFO] [stdout] 4999 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 4999 -     (__0)
[INFO] [stdout] 4999 +     __0
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/fall-0cee78208f93d33a/out/grammar.rs:4966:5
[INFO] [stdout]      |
[INFO] [stdout] 4966 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 4966 -     (__0)
[INFO] [stdout] 4966 +     __0
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/fall-0cee78208f93d33a/out/grammar.rs:4977:5
[INFO] [stdout]      |
[INFO] [stdout] 4977 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 4977 -     (__0)
[INFO] [stdout] 4977 +     __0
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/fall-0cee78208f93d33a/out/grammar.rs:4988:5
[INFO] [stdout]      |
[INFO] [stdout] 4988 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 4988 -     (__0)
[INFO] [stdout] 4988 +     __0
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/fall-0cee78208f93d33a/out/grammar.rs:4999:5
[INFO] [stdout]      |
[INFO] [stdout] 4999 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 4999 -     (__0)
[INFO] [stdout] 4999 +     __0
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/eval.rs:69:14
[INFO] [stdout]    |
[INFO] [stdout] 69 |     ) -> Box<Stream<Item = Subst, Error = E> + Send> {
[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] 69 |     ) -> Box<dyn Stream<Item = Subst, Error = E> + Send> {
[INFO] [stdout]    |              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/eval.rs:69:14
[INFO] [stdout]    |
[INFO] [stdout] 69 |     ) -> Box<Stream<Item = Subst, Error = E> + Send> {
[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] 69 |     ) -> Box<dyn Stream<Item = Subst, Error = E> + Send> {
[INFO] [stdout]    |              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/eval.rs:90:14
[INFO] [stdout]    |
[INFO] [stdout] 90 |     ) -> Box<Stream<Item = Subst, Error = E> + Send> {
[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] 90 |     ) -> Box<dyn Stream<Item = Subst, Error = E> + Send> {
[INFO] [stdout]    |              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/eval.rs:90:14
[INFO] [stdout]    |
[INFO] [stdout] 90 |     ) -> Box<Stream<Item = Subst, Error = E> + Send> {
[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] 90 |     ) -> Box<dyn Stream<Item = Subst, Error = E> + Send> {
[INFO] [stdout]    |              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/util.rs:10:46
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub fn box_stream<E, S, T>(stream: S) -> Box<Stream<Item = T, Error = E> + Send>
[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] 10 | pub fn box_stream<E, S, T>(stream: S) -> Box<dyn Stream<Item = T, Error = E> + Send>
[INFO] [stdout]    |                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/util.rs:10:46
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub fn box_stream<E, S, T>(stream: S) -> Box<Stream<Item = T, Error = E> + Send>
[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] 10 | pub fn box_stream<E, S, T>(stream: S) -> Box<dyn Stream<Item = T, Error = E> + Send>
[INFO] [stdout]    |                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.01s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: lalrpop v0.16.3
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 3`
[INFO] running `Command { std: "docker" "inspect" "6810768bf251b905f0b81301b437be5f4b807fa7e9e34925c4b7ac216b379828", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6810768bf251b905f0b81301b437be5f4b807fa7e9e34925c4b7ac216b379828", kill_on_drop: false }`
[INFO] [stdout] 6810768bf251b905f0b81301b437be5f4b807fa7e9e34925c4b7ac216b379828
[INFO] checking fall-0.1.2 against nightly-2024-02-05+rustflags=-Dunexpected_cfgs+cargoflags=-Zcheck-cfg for check-cfg
[INFO] extracting crate fall 0.1.2 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate fall 0.1.2 on toolchain nightly-2024-02-05
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate fall 0.1.2
[INFO] finished tweaking crates.io crate fall 0.1.2
[INFO] tweaked toml for crates.io crate fall 0.1.2 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-02-05" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f895c99407b2a0d510f266e64dff1865bcaf63062e46c7d4e3eaaa68c597dd07
[INFO] running `Command { std: "docker" "start" "-a" "f895c99407b2a0d510f266e64dff1865bcaf63062e46c7d4e3eaaa68c597dd07", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f895c99407b2a0d510f266e64dff1865bcaf63062e46c7d4e3eaaa68c597dd07", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f895c99407b2a0d510f266e64dff1865bcaf63062e46c7d4e3eaaa68c597dd07", kill_on_drop: false }`
[INFO] [stdout] f895c99407b2a0d510f266e64dff1865bcaf63062e46c7d4e3eaaa68c597dd07
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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 -Dunexpected_cfgs" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-02-05" "check" "--frozen" "--all" "--all-targets" "--message-format=json" "-Zcheck-cfg", kill_on_drop: false }`
[INFO] [stdout] 92755b2feedb4878a0f5520efd7e59626ce4f502a636e07b72369afa72105253
[INFO] running `Command { std: "docker" "start" "-a" "92755b2feedb4878a0f5520efd7e59626ce4f502a636e07b72369afa72105253", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling byte-tools v0.3.1
[INFO] [stderr]    Compiling typenum v1.17.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling frunk_core v0.2.4
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling proc-macro-hack v0.5.20+deprecated
[INFO] [stderr]     Checking unicode-xid v0.1.0
[INFO] [stderr]    Compiling precomputed-hash v0.1.1
[INFO] [stderr]    Compiling new_debug_unreachable v1.0.4
[INFO] [stderr]    Compiling ordermap v0.3.5
[INFO] [stderr]    Compiling fixedbitset v0.1.9
[INFO] [stderr]    Compiling either v1.9.0
[INFO] [stderr]    Compiling serde v1.0.196
[INFO] [stderr]    Compiling term v0.4.6
[INFO] [stderr]    Compiling block-padding v0.1.5
[INFO] [stderr]    Compiling bit-vec v0.6.3
[INFO] [stderr]    Compiling fake-simd v0.1.2
[INFO] [stderr]    Compiling opaque-debug v0.2.3
[INFO] [stderr]    Compiling ena v0.11.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling regex-syntax v0.6.29
[INFO] [stderr]    Compiling diff v0.1.13
[INFO] [stderr]    Compiling lalrpop-util v0.16.3
[INFO] [stderr]     Checking backtrace v0.3.69
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling bit-set v0.5.3
[INFO] [stderr]    Compiling ascii-canvas v1.0.0
[INFO] [stderr]    Compiling petgraph v0.4.13
[INFO] [stderr]     Checking quote v0.6.13
[INFO] [stderr]    Compiling generic-array v0.12.4
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling string_cache_codegen v0.4.4
[INFO] [stderr]    Compiling digest v0.8.1
[INFO] [stderr]    Compiling block-buffer v0.7.3
[INFO] [stderr]    Compiling sha2 v0.8.2
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]    Compiling string_cache v0.7.5
[INFO] [stderr]    Compiling frunk_proc_macro_helpers v0.0.2
[INFO] [stderr]    Compiling frunk_proc_macros_impl v0.0.2
[INFO] [stderr]    Compiling frunk_derives v0.2.4
[INFO] [stderr]     Checking frunk_proc_macros v0.0.2
[INFO] [stderr]    Compiling docopt v1.1.1
[INFO] [stderr]     Checking frunk v0.2.4
[INFO] [stderr]    Compiling lalrpop v0.16.3
[INFO] [stderr]    Compiling fall v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] error: unexpected `cfg` condition name: `rustfmt`
[INFO] [stdout]  --> /opt/rustwide/target/debug/build/fall-0cee78208f93d33a/out/grammar.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | #[cfg_attr(rustfmt, rustfmt_skip)]
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: expected names are: `debug_assertions`, `doc`, `doctest`, `feature`, `miri`, `overflow_checks`, `panic`, `proc_macro`, `relocation_model`, `sanitize`, `sanitizer_cfi_generalize_pointers`, `sanitizer_cfi_normalize_integers`, `target_abi`, `target_arch`, `target_endian`, `target_env`, `target_family`, `target_feature`, `target_has_atomic`, `target_has_atomic_equal_alignment`, `target_has_atomic_load_store`, `target_os`, `target_pointer_width`, `target_thread_local`, `target_vendor`, `test`, `unix`, `windows`
[INFO] [stdout]   = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(rustfmt)");` to the top of a `build.rs`
[INFO] [stdout]   = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout]   = note: requested on the command line with `-D unexpected-cfgs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `rustfmt`
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/fall-0cee78208f93d33a/out/grammar.rs:1237:12
[INFO] [stdout]      |
[INFO] [stdout] 1237 | #[cfg_attr(rustfmt, rustfmt_skip)]
[INFO] [stdout]      |            ^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(rustfmt)");` to the top of a `build.rs`
[INFO] [stdout]      = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `rustfmt`
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/fall-0cee78208f93d33a/out/grammar.rs:2417:12
[INFO] [stdout]      |
[INFO] [stdout] 2417 | #[cfg_attr(rustfmt, rustfmt_skip)]
[INFO] [stdout]      |            ^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(rustfmt)");` to the top of a `build.rs`
[INFO] [stdout]      = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `rustfmt`
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/fall-0cee78208f93d33a/out/grammar.rs:3663:12
[INFO] [stdout]      |
[INFO] [stdout] 3663 | #[cfg_attr(rustfmt, rustfmt_skip)]
[INFO] [stdout]      |            ^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(rustfmt)");` to the top of a `build.rs`
[INFO] [stdout]      = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `rustfmt`
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/fall-0cee78208f93d33a/out/grammar.rs:4842:12
[INFO] [stdout]      |
[INFO] [stdout] 4842 | #[cfg_attr(rustfmt, rustfmt_skip)]
[INFO] [stdout]      |            ^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(rustfmt)");` to the top of a `build.rs`
[INFO] [stdout]      = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `rustfmt`
[INFO] [stdout]  --> /opt/rustwide/target/debug/build/fall-0cee78208f93d33a/out/grammar.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | #[cfg_attr(rustfmt, rustfmt_skip)]
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: expected names are: `debug_assertions`, `doc`, `doctest`, `feature`, `miri`, `overflow_checks`, `panic`, `proc_macro`, `relocation_model`, `sanitize`, `sanitizer_cfi_generalize_pointers`, `sanitizer_cfi_normalize_integers`, `target_abi`, `target_arch`, `target_endian`, `target_env`, `target_family`, `target_feature`, `target_has_atomic`, `target_has_atomic_equal_alignment`, `target_has_atomic_load_store`, `target_os`, `target_pointer_width`, `target_thread_local`, `target_vendor`, `test`, `unix`, `windows`
[INFO] [stdout]   = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(rustfmt)");` to the top of a `build.rs`
[INFO] [stdout]   = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout]   = note: requested on the command line with `-D unexpected-cfgs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `rustfmt`
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/fall-0cee78208f93d33a/out/grammar.rs:1237:12
[INFO] [stdout]      |
[INFO] [stdout] 1237 | #[cfg_attr(rustfmt, rustfmt_skip)]
[INFO] [stdout]      |            ^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(rustfmt)");` to the top of a `build.rs`
[INFO] [stdout]      = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `rustfmt`
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/fall-0cee78208f93d33a/out/grammar.rs:2417:12
[INFO] [stdout]      |
[INFO] [stdout] 2417 | #[cfg_attr(rustfmt, rustfmt_skip)]
[INFO] [stdout]      |            ^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(rustfmt)");` to the top of a `build.rs`
[INFO] [stdout]      = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `rustfmt`
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/fall-0cee78208f93d33a/out/grammar.rs:3663:12
[INFO] [stdout]      |
[INFO] [stdout] 3663 | #[cfg_attr(rustfmt, rustfmt_skip)]
[INFO] [stdout]      |            ^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(rustfmt)");` to the top of a `build.rs`
[INFO] [stdout]      = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `rustfmt`
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/fall-0cee78208f93d33a/out/grammar.rs:4842:12
[INFO] [stdout]      |
[INFO] [stdout] 4842 | #[cfg_attr(rustfmt, rustfmt_skip)]
[INFO] [stdout]      |            ^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(rustfmt)");` to the top of a `build.rs`
[INFO] [stdout]      = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/fall-0cee78208f93d33a/out/grammar.rs:4966:5
[INFO] [stdout]      |
[INFO] [stdout] 4966 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 4966 -     (__0)
[INFO] [stdout] 4966 +     __0
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/fall-0cee78208f93d33a/out/grammar.rs:4977:5
[INFO] [stdout]      |
[INFO] [stdout] 4977 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 4977 -     (__0)
[INFO] [stdout] 4977 +     __0
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/fall-0cee78208f93d33a/out/grammar.rs:4988:5
[INFO] [stdout]      |
[INFO] [stdout] 4988 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 4988 -     (__0)
[INFO] [stdout] 4988 +     __0
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/fall-0cee78208f93d33a/out/grammar.rs:4999:5
[INFO] [stdout]      |
[INFO] [stdout] 4999 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 4999 -     (__0)
[INFO] [stdout] 4999 +     __0
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/fall-0cee78208f93d33a/out/grammar.rs:4966:5
[INFO] [stdout]      |
[INFO] [stdout] 4966 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 4966 -     (__0)
[INFO] [stdout] 4966 +     __0
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/fall-0cee78208f93d33a/out/grammar.rs:4977:5
[INFO] [stdout]      |
[INFO] [stdout] 4977 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 4977 -     (__0)
[INFO] [stdout] 4977 +     __0
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/fall-0cee78208f93d33a/out/grammar.rs:4988:5
[INFO] [stdout]      |
[INFO] [stdout] 4988 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 4988 -     (__0)
[INFO] [stdout] 4988 +     __0
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/fall-0cee78208f93d33a/out/grammar.rs:4999:5
[INFO] [stdout]      |
[INFO] [stdout] 4999 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 4999 -     (__0)
[INFO] [stdout] 4999 +     __0
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/eval.rs:69:14
[INFO] [stdout]    |
[INFO] [stdout] 69 |     ) -> Box<Stream<Item = Subst, Error = E> + Send> {
[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] 69 |     ) -> Box<dyn Stream<Item = Subst, Error = E> + Send> {
[INFO] [stdout]    |              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/eval.rs:90:14
[INFO] [stdout]    |
[INFO] [stdout] 90 |     ) -> Box<Stream<Item = Subst, Error = E> + Send> {
[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] 90 |     ) -> Box<dyn Stream<Item = Subst, Error = E> + Send> {
[INFO] [stdout]    |              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/util.rs:10:46
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub fn box_stream<E, S, T>(stream: S) -> Box<Stream<Item = T, Error = E> + Send>
[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] 10 | pub fn box_stream<E, S, T>(stream: S) -> Box<dyn Stream<Item = T, Error = E> + Send>
[INFO] [stdout]    |                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/eval.rs:69:14
[INFO] [stdout]    |
[INFO] [stdout] 69 |     ) -> Box<Stream<Item = Subst, Error = E> + Send> {
[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] 69 |     ) -> Box<dyn Stream<Item = Subst, Error = E> + Send> {
[INFO] [stdout]    |              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/eval.rs:90:14
[INFO] [stdout]    |
[INFO] [stdout] 90 |     ) -> Box<Stream<Item = Subst, Error = E> + Send> {
[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] 90 |     ) -> Box<dyn Stream<Item = Subst, Error = E> + Send> {
[INFO] [stdout]    |              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/util.rs:10:46
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub fn box_stream<E, S, T>(stream: S) -> Box<Stream<Item = T, Error = E> + Send>
[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] 10 | pub fn box_stream<E, S, T>(stream: S) -> Box<dyn Stream<Item = T, Error = E> + Send>
[INFO] [stdout]    |                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors; 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `fall` (lib) due to 6 previous errors; 7 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to 5 previous errors; 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `fall` (lib test) due to 6 previous errors; 7 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "92755b2feedb4878a0f5520efd7e59626ce4f502a636e07b72369afa72105253", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92755b2feedb4878a0f5520efd7e59626ce4f502a636e07b72369afa72105253", kill_on_drop: false }`
[INFO] [stdout] 92755b2feedb4878a0f5520efd7e59626ce4f502a636e07b72369afa72105253
