[INFO] fetching crate evaltrees 0.1.0...
[INFO] checking evaltrees-0.1.0 against master#297a8018b525c28ef10ee6a91d61954839b508b9 for pr-95565
[INFO] extracting crate evaltrees 0.1.0 into /workspace/builds/worker-70/source
[INFO] validating manifest of crates.io crate evaltrees 0.1.0 on toolchain 297a8018b525c28ef10ee6a91d61954839b508b9
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+297a8018b525c28ef10ee6a91d61954839b508b9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate evaltrees 0.1.0
[INFO] finished tweaking crates.io crate evaltrees 0.1.0
[INFO] tweaked toml for crates.io crate evaltrees 0.1.0 written to /workspace/builds/worker-70/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+297a8018b525c28ef10ee6a91d61954839b508b9" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
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[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+297a8018b525c28ef10ee6a91d61954839b508b9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-70/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-70/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+297a8018b525c28ef10ee6a91d61954839b508b9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c2216d23910c0b8a2e981f274e6ff5d94ab93cbcc497a9023935df988389f621
[INFO] running `Command { std: "docker" "start" "-a" "c2216d23910c0b8a2e981f274e6ff5d94ab93cbcc497a9023935df988389f621", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c2216d23910c0b8a2e981f274e6ff5d94ab93cbcc497a9023935df988389f621", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2216d23910c0b8a2e981f274e6ff5d94ab93cbcc497a9023935df988389f621", kill_on_drop: false }`
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[INFO] [stdout] cf701c9e8def99a6ca180f02b384b052c54295d46b61338a7d280354e21d04c5
[INFO] running `Command { std: "docker" "start" "-a" "cf701c9e8def99a6ca180f02b384b052c54295d46b61338a7d280354e21d04c5", kill_on_drop: false }`
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[INFO] [stderr]    Compiling evaltrees v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> src/cst/parser/grammar.rs:9607:5
[INFO] [stdout]      |
[INFO] [stdout] 9607 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 9607 -     (__0)
[INFO] [stdout] 9607 +     __0
[INFO] [stdout]      | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> src/cst/parser/grammar.rs:9618:5
[INFO] [stdout]      |
[INFO] [stdout] 9618 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 9618 -     (__0)
[INFO] [stdout] 9618 +     __0
[INFO] [stdout]      | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> src/cst/parser/grammar.rs:9629:5
[INFO] [stdout]      |
[INFO] [stdout] 9629 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 9629 -     (__0)
[INFO] [stdout] 9629 +     __0
[INFO] [stdout]      | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> src/cst/parser/grammar.rs:9640:5
[INFO] [stdout]      |
[INFO] [stdout] 9640 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 9640 -     (__0)
[INFO] [stdout] 9640 +     __0
[INFO] [stdout]      | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> src/cst/parser/grammar.rs:9809:5
[INFO] [stdout]      |
[INFO] [stdout] 9809 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 9809 -     (__0)
[INFO] [stdout] 9809 +     __0
[INFO] [stdout]      | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> src/cst/parser/grammar.rs:9875:5
[INFO] [stdout]      |
[INFO] [stdout] 9875 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 9875 -     (__0)
[INFO] [stdout] 9875 +     __0
[INFO] [stdout]      | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> src/cst/parser/grammar.rs:9912:5
[INFO] [stdout]      |
[INFO] [stdout] 9912 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 9912 -     (__0)
[INFO] [stdout] 9912 +     __0
[INFO] [stdout]      | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> src/cst/parser/grammar.rs:9962:5
[INFO] [stdout]      |
[INFO] [stdout] 9962 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 9962 -     (__0)
[INFO] [stdout] 9962 +     __0
[INFO] [stdout]      | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> src/cst/parser/grammar.rs:9985:5
[INFO] [stdout]      |
[INFO] [stdout] 9985 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 9985 -     (__0)
[INFO] [stdout] 9985 +     __0
[INFO] [stdout]      | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]      --> src/cst/parser/grammar.rs:10074:5
[INFO] [stdout]       |
[INFO] [stdout] 10074 |     (__0)
[INFO] [stdout]       |     ^   ^
[INFO] [stdout]       |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]       |
[INFO] [stdout] 10074 -     (__0)
[INFO] [stdout] 10074 +     __0
[INFO] [stdout]       | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> src/cst/parser/grammar.rs:9607:5
[INFO] [stdout]      |
[INFO] [stdout] 9607 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 9607 -     (__0)
[INFO] [stdout] 9607 +     __0
[INFO] [stdout]      | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> src/cst/parser/grammar.rs:9618:5
[INFO] [stdout]      |
[INFO] [stdout] 9618 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 9618 -     (__0)
[INFO] [stdout] 9618 +     __0
[INFO] [stdout]      | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> src/cst/parser/grammar.rs:9629:5
[INFO] [stdout]      |
[INFO] [stdout] 9629 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 9629 -     (__0)
[INFO] [stdout] 9629 +     __0
[INFO] [stdout]      | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> src/cst/parser/grammar.rs:9640:5
[INFO] [stdout]      |
[INFO] [stdout] 9640 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 9640 -     (__0)
[INFO] [stdout] 9640 +     __0
[INFO] [stdout]      | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> src/cst/parser/grammar.rs:9809:5
[INFO] [stdout]      |
[INFO] [stdout] 9809 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 9809 -     (__0)
[INFO] [stdout] 9809 +     __0
[INFO] [stdout]      | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> src/cst/parser/grammar.rs:9875:5
[INFO] [stdout]      |
[INFO] [stdout] 9875 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 9875 -     (__0)
[INFO] [stdout] 9875 +     __0
[INFO] [stdout]      | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> src/cst/parser/grammar.rs:9912:5
[INFO] [stdout]      |
[INFO] [stdout] 9912 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 9912 -     (__0)
[INFO] [stdout] 9912 +     __0
[INFO] [stdout]      | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> src/cst/parser/grammar.rs:9962:5
[INFO] [stdout]      |
[INFO] [stdout] 9962 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 9962 -     (__0)
[INFO] [stdout] 9962 +     __0
[INFO] [stdout]      | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> src/cst/parser/grammar.rs:9985:5
[INFO] [stdout]      |
[INFO] [stdout] 9985 |     (__0)
[INFO] [stdout]      |     ^   ^
[INFO] [stdout]      |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout] 9985 -     (__0)
[INFO] [stdout] 9985 +     __0
[INFO] [stdout]      | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]      --> src/cst/parser/grammar.rs:10074:5
[INFO] [stdout]       |
[INFO] [stdout] 10074 |     (__0)
[INFO] [stdout]       |     ^   ^
[INFO] [stdout]       |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]       |
[INFO] [stdout] 10074 -     (__0)
[INFO] [stdout] 10074 +     __0
[INFO] [stdout]       | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/repl.rs:14:40
[INFO] [stdout]    |
[INFO] [stdout] 14 |     Evaluator(fn(Vec<Decl<()>>) -> Box<Evaluator>),
[INFO] [stdout]    |                                        ^^^^^^^^^
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 14 -     Evaluator(fn(Vec<Decl<()>>) -> Box<Evaluator>),
[INFO] [stdout] 14 +     Evaluator(fn(Vec<Decl<()>>) -> Box<dyn Evaluator>),
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/repl.rs:14:40
[INFO] [stdout]    |
[INFO] [stdout] 14 |     Evaluator(fn(Vec<Decl<()>>) -> Box<Evaluator>),
[INFO] [stdout]    |                                        ^^^^^^^^^
[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 <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 14 -     Evaluator(fn(Vec<Decl<()>>) -> Box<Evaluator>),
[INFO] [stdout] 14 +     Evaluator(fn(Vec<Decl<()>>) -> Box<dyn Evaluator>),
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `failure::core::str::<impl str>::trim_left`: superseded by `trim_start`
[INFO] [stdout]     --> src/cst/parser/grammar.rs:9560:36
[INFO] [stdout]      |
[INFO] [stdout] 9560 |             let __text = self.text.trim_left();
[INFO] [stdout]      |                                    ^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_start`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `failure::core::str::<impl str>::trim_left`: superseded by `trim_start`
[INFO] [stdout]     --> src/cst/parser/grammar.rs:9560:36
[INFO] [stdout]      |
[INFO] [stdout] 9560 |             let __text = self.text.trim_left();
[INFO] [stdout]      |                                    ^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_start`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 37s
[INFO] running `Command { std: "docker" "inspect" "cf701c9e8def99a6ca180f02b384b052c54295d46b61338a7d280354e21d04c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf701c9e8def99a6ca180f02b384b052c54295d46b61338a7d280354e21d04c5", kill_on_drop: false }`
[INFO] [stdout] cf701c9e8def99a6ca180f02b384b052c54295d46b61338a7d280354e21d04c5