[INFO] fetching crate fall 0.1.2... [INFO] checking fall-0.1.2 against try#3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f for pr-87248 [INFO] extracting crate fall 0.1.2 into /workspace/builds/worker-0/source [INFO] validating manifest of crates.io crate fall 0.1.2 on toolchain 3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "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-0/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded frunk 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_proc_macros_impl v0.0.2 [INFO] [stderr] Downloaded frunk_derives 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-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 74ee3090cc18213f8497977b45a2e3491e13350b6def294b36fef4f6e7d8603e [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" "74ee3090cc18213f8497977b45a2e3491e13350b6def294b36fef4f6e7d8603e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "74ee3090cc18213f8497977b45a2e3491e13350b6def294b36fef4f6e7d8603e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "74ee3090cc18213f8497977b45a2e3491e13350b6def294b36fef4f6e7d8603e", kill_on_drop: false }` [INFO] [stdout] 74ee3090cc18213f8497977b45a2e3491e13350b6def294b36fef4f6e7d8603e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] a742c00254a0c553fe37a5ac2ea9165d0a187d56b82e1177712d1cd0896e08c7 [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" "a742c00254a0c553fe37a5ac2ea9165d0a187d56b82e1177712d1cd0896e08c7", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v0.1.7 [INFO] [stderr] Compiling proc-macro2 v1.0.28 [INFO] [stderr] Compiling libc v0.2.98 [INFO] [stderr] Compiling unicode-xid v0.2.2 [INFO] [stderr] Compiling memchr v2.4.0 [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Compiling serde_derive v1.0.126 [INFO] [stderr] Compiling byte-tools v0.3.1 [INFO] [stderr] Compiling byteorder v1.4.3 [INFO] [stderr] Compiling proc-macro-hack v0.5.19 [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] Compiling frunk_core v0.2.4 [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Compiling cfg-if v1.0.0 [INFO] [stderr] Compiling regex-syntax v0.6.25 [INFO] [stderr] Compiling strsim v0.10.0 [INFO] [stderr] Compiling fake-simd v0.1.2 [INFO] [stderr] Compiling either v1.6.1 [INFO] [stderr] Compiling opaque-debug v0.2.3 [INFO] [stderr] Compiling new_debug_unreachable v1.0.4 [INFO] [stderr] Compiling precomputed-hash v0.1.1 [INFO] [stderr] Compiling diff v0.1.12 [INFO] [stderr] Compiling block-padding v0.1.5 [INFO] [stderr] Compiling itertools v0.8.2 [INFO] [stderr] Compiling typenum v1.13.0 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Compiling ena v0.11.0 [INFO] [stderr] Compiling miniz_oxide v0.4.4 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling rand_pcg v0.1.2 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Compiling generic-array v0.12.4 [INFO] [stderr] Compiling aho-corasick v0.7.18 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Checking object v0.25.3 [INFO] [stderr] Checking quote v0.6.13 [INFO] [stderr] Compiling syn v1.0.74 [INFO] [stderr] Compiling digest v0.8.1 [INFO] [stderr] Compiling block-buffer v0.7.3 [INFO] [stderr] Checking syn v0.15.44 [INFO] [stderr] Compiling rand_os v0.1.3 [INFO] [stderr] Compiling atty v0.2.14 [INFO] [stderr] Compiling sha2 v0.8.2 [INFO] [stderr] Checking regex v1.5.4 [INFO] [stderr] Compiling phf_generator v0.7.24 [INFO] [stderr] Compiling string_cache_codegen v0.4.4 [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 synstructure v0.12.5 [INFO] [stderr] Checking backtrace v0.3.60 [INFO] [stderr] Checking frunk_proc_macros v0.0.2 [INFO] [stderr] Compiling failure_derive v0.1.8 [INFO] [stderr] Checking frunk v0.2.4 [INFO] [stderr] Checking failure v0.1.8 [INFO] [stderr] Compiling serde v1.0.126 [INFO] [stderr] Compiling docopt v1.1.1 [INFO] [stderr] Compiling lalrpop v0.16.3 [INFO] [stderr] Compiling fall v0.1.2 (/opt/rustwide/workdir) [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/eval.rs:69:14 [INFO] [stdout] | [INFO] [stdout] 69 | ) -> Box + Send> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Stream + Send` [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 [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 + Send> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Stream + Send` [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 [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(stream: S) -> Box + Send> [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Stream + Send` [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 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around block return value [INFO] [stdout] --> /opt/rustwide/target/debug/build/fall-bae3cb7c961d6ca1/out/grammar.rs:4966:5 [INFO] [stdout] | [INFO] [stdout] 4966 | (__0) [INFO] [stdout] | ^^^^^ help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around block return value [INFO] [stdout] --> /opt/rustwide/target/debug/build/fall-bae3cb7c961d6ca1/out/grammar.rs:4977:5 [INFO] [stdout] | [INFO] [stdout] 4977 | (__0) [INFO] [stdout] | ^^^^^ help: remove these parentheses [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around block return value [INFO] [stdout] --> /opt/rustwide/target/debug/build/fall-bae3cb7c961d6ca1/out/grammar.rs:4988:5 [INFO] [stdout] | [INFO] [stdout] 4988 | (__0) [INFO] [stdout] | ^^^^^ help: remove these parentheses [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around block return value [INFO] [stdout] --> /opt/rustwide/target/debug/build/fall-bae3cb7c961d6ca1/out/grammar.rs:4999:5 [INFO] [stdout] | [INFO] [stdout] 4999 | (__0) [INFO] [stdout] | ^^^^^ help: remove these parentheses [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 + Send> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Stream + Send` [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 [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 + Send> { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Stream + Send` [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 [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(stream: S) -> Box + Send> [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Stream + Send` [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 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around block return value [INFO] [stdout] --> /opt/rustwide/target/debug/build/fall-bae3cb7c961d6ca1/out/grammar.rs:4966:5 [INFO] [stdout] | [INFO] [stdout] 4966 | (__0) [INFO] [stdout] | ^^^^^ help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around block return value [INFO] [stdout] --> /opt/rustwide/target/debug/build/fall-bae3cb7c961d6ca1/out/grammar.rs:4977:5 [INFO] [stdout] | [INFO] [stdout] 4977 | (__0) [INFO] [stdout] | ^^^^^ help: remove these parentheses [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around block return value [INFO] [stdout] --> /opt/rustwide/target/debug/build/fall-bae3cb7c961d6ca1/out/grammar.rs:4988:5 [INFO] [stdout] | [INFO] [stdout] 4988 | (__0) [INFO] [stdout] | ^^^^^ help: remove these parentheses [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around block return value [INFO] [stdout] --> /opt/rustwide/target/debug/build/fall-bae3cb7c961d6ca1/out/grammar.rs:4999:5 [INFO] [stdout] | [INFO] [stdout] 4999 | (__0) [INFO] [stdout] | ^^^^^ help: remove these parentheses [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 1m 24s [INFO] running `Command { std: "docker" "inspect" "a742c00254a0c553fe37a5ac2ea9165d0a187d56b82e1177712d1cd0896e08c7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a742c00254a0c553fe37a5ac2ea9165d0a187d56b82e1177712d1cd0896e08c7", kill_on_drop: false }` [INFO] [stdout] a742c00254a0c553fe37a5ac2ea9165d0a187d56b82e1177712d1cd0896e08c7