[INFO] fetching crate fall 0.1.2... [INFO] checking fall-0.1.2 against try#9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c for pr-79472 [INFO] extracting crate fall 0.1.2 into /workspace/builds/worker-8/source [INFO] validating manifest of crates.io crate fall 0.1.2 on toolchain 9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c" "read-manifest" "--manifest-path" "Cargo.toml", 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-8/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded fixedbitset v0.1.9 [INFO] [stderr] Downloaded ascii-canvas v1.0.0 [INFO] [stderr] Downloaded string_cache v0.7.5 [INFO] [stderr] Downloaded string_cache_shared v0.3.0 [INFO] [stderr] Downloaded precomputed-hash v0.1.1 [INFO] [stderr] Downloaded frunk v0.2.4 [INFO] [stderr] Downloaded frunk_proc_macro_helpers v0.0.2 [INFO] [stderr] Downloaded frunk_core v0.2.4 [INFO] [stderr] Downloaded frunk_proc_macros v0.0.2 [INFO] [stderr] Downloaded ordermap v0.3.5 [INFO] [stderr] Downloaded docopt v1.1.0 [INFO] [stderr] Downloaded new_debug_unreachable v1.0.4 [INFO] [stderr] Downloaded frunk_derives v0.2.4 [INFO] [stderr] Downloaded string_cache_codegen v0.4.4 [INFO] [stderr] Downloaded lalrpop-util v0.16.3 [INFO] [stderr] Downloaded petgraph v0.4.13 [INFO] [stderr] Downloaded frunk_proc_macros_impl v0.0.2 [INFO] [stderr] Downloaded lalrpop v0.16.3 [INFO] [stderr] Downloaded ena v0.11.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 58758c79a7fbe83e3dc3fa6d41354ccb59952b1b69590a21f0fa626e27e36d12 [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" "58758c79a7fbe83e3dc3fa6d41354ccb59952b1b69590a21f0fa626e27e36d12", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "58758c79a7fbe83e3dc3fa6d41354ccb59952b1b69590a21f0fa626e27e36d12", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "58758c79a7fbe83e3dc3fa6d41354ccb59952b1b69590a21f0fa626e27e36d12", kill_on_drop: false }` [INFO] [stdout] 58758c79a7fbe83e3dc3fa6d41354ccb59952b1b69590a21f0fa626e27e36d12 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] d57a8f5bc483a1bb6ebc6733086ade5c687910541e2d03be4a590c1fb8dcb54e [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" "d57a8f5bc483a1bb6ebc6733086ade5c687910541e2d03be4a590c1fb8dcb54e", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Compiling memchr v2.3.4 [INFO] [stderr] Compiling typenum v1.12.0 [INFO] [stderr] Compiling syn v0.15.44 [INFO] [stderr] Compiling serde v1.0.118 [INFO] [stderr] Compiling byteorder v1.3.4 [INFO] [stderr] Compiling frunk_core v0.2.4 [INFO] [stderr] Compiling cfg-if v0.1.10 [INFO] [stderr] Checking unicode-xid v0.1.0 [INFO] [stderr] Compiling proc-macro-hack v0.5.19 [INFO] [stderr] Compiling fake-simd v0.1.2 [INFO] [stderr] Compiling bit-vec v0.6.3 [INFO] [stderr] Compiling new_debug_unreachable v1.0.4 [INFO] [stderr] Compiling ordermap v0.3.5 [INFO] [stderr] Compiling precomputed-hash v0.1.1 [INFO] [stderr] Compiling strsim v0.9.3 [INFO] [stderr] Compiling fixedbitset v0.1.9 [INFO] [stderr] Compiling either v1.6.1 [INFO] [stderr] Checking adler v0.2.3 [INFO] [stderr] Compiling diff v0.1.12 [INFO] [stderr] Compiling lalrpop-util v0.16.3 [INFO] [stderr] Checking gimli v0.23.0 [INFO] [stderr] Checking rustc-demangle v0.1.18 [INFO] [stderr] Checking object v0.22.0 [INFO] [stderr] Checking regex-syntax v0.6.21 [INFO] [stderr] Checking futures v0.1.30 [INFO] [stderr] Compiling miniz_oxide v0.4.3 [INFO] [stderr] Compiling ascii-canvas v1.0.0 [INFO] [stderr] Compiling itertools v0.8.2 [INFO] [stderr] Compiling bit-set v0.5.2 [INFO] [stderr] Checking thread_local v1.0.1 [INFO] [stderr] Compiling petgraph v0.4.13 [INFO] [stderr] Compiling libc v0.2.81 [INFO] [stderr] Compiling log v0.4.11 [INFO] [stderr] Compiling ena v0.11.0 [INFO] [stderr] Checking aho-corasick v0.7.15 [INFO] [stderr] Compiling syn v1.0.54 [INFO] [stderr] Checking quote v0.6.13 [INFO] [stderr] Compiling rand_os v0.1.3 [INFO] [stderr] Compiling atty v0.2.14 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Compiling regex v1.4.2 [INFO] [stderr] Compiling generic-array v0.12.3 [INFO] [stderr] Compiling block-buffer v0.7.3 [INFO] [stderr] Compiling digest v0.8.1 [INFO] [stderr] Compiling sha2 v0.8.2 [INFO] [stderr] Checking addr2line v0.14.0 [INFO] [stderr] Checking backtrace v0.3.55 [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 synstructure v0.12.4 [INFO] [stderr] Compiling frunk_proc_macros_impl v0.0.2 [INFO] [stderr] Compiling frunk_derives v0.2.4 [INFO] [stderr] Compiling serde_derive v1.0.118 [INFO] [stderr] Compiling failure_derive v0.1.8 [INFO] [stderr] Checking frunk_proc_macros v0.0.2 [INFO] [stderr] Checking frunk v0.2.4 [INFO] [stderr] Checking failure v0.1.8 [INFO] [stderr] Compiling docopt v1.1.0 [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] [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] [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] [INFO] [stdout] warning: unnecessary parentheses around block return value [INFO] [stdout] --> /opt/rustwide/target/debug/build/fall-55e06ae660c2228b/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-55e06ae660c2228b/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-55e06ae660c2228b/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-55e06ae660c2228b/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] [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] [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] [INFO] [stdout] warning: unnecessary parentheses around block return value [INFO] [stdout] --> /opt/rustwide/target/debug/build/fall-55e06ae660c2228b/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-55e06ae660c2228b/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-55e06ae660c2228b/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-55e06ae660c2228b/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] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 2m 32s [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "d57a8f5bc483a1bb6ebc6733086ade5c687910541e2d03be4a590c1fb8dcb54e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d57a8f5bc483a1bb6ebc6733086ade5c687910541e2d03be4a590c1fb8dcb54e", kill_on_drop: false }` [INFO] [stdout] d57a8f5bc483a1bb6ebc6733086ade5c687910541e2d03be4a590c1fb8dcb54e