[INFO] fetching crate unseemly 0.0.0...
[INFO] checking unseemly-0.0.0 against master#cfbc6d4cf1acbac5c025acf8ed68929caa551df3 for pr-75494-beta
[INFO] extracting crate unseemly 0.0.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate unseemly 0.0.0 on toolchain cfbc6d4cf1acbac5c025acf8ed68929caa551df3
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cfbc6d4cf1acbac5c025acf8ed68929caa551df3" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate unseemly 0.0.0
[INFO] finished tweaking crates.io crate unseemly 0.0.0
[INFO] tweaked toml for crates.io crate unseemly 0.0.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate unseemly 0.0.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cfbc6d4cf1acbac5c025acf8ed68929caa551df3" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded gimli v0.19.0
[INFO] [stderr]   Downloaded addr2line v0.10.0
[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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+cfbc6d4cf1acbac5c025acf8ed68929caa551df3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 82d9b5c6cddea7b4c2f4ca9cc44b8680ea4eb0c48e8aafea06352658178fda17
[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" "82d9b5c6cddea7b4c2f4ca9cc44b8680ea4eb0c48e8aafea06352658178fda17", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "82d9b5c6cddea7b4c2f4ca9cc44b8680ea4eb0c48e8aafea06352658178fda17", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82d9b5c6cddea7b4c2f4ca9cc44b8680ea4eb0c48e8aafea06352658178fda17", kill_on_drop: false }`
[INFO] [stdout] 82d9b5c6cddea7b4c2f4ca9cc44b8680ea4eb0c48e8aafea06352658178fda17
[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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+cfbc6d4cf1acbac5c025acf8ed68929caa551df3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2928601a305b9c3dcba8a3cecaaacbe16fd5936404c0c0e04b01da31d405b052
[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" "2928601a305b9c3dcba8a3cecaaacbe16fd5936404c0c0e04b01da31d405b052", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling cc v1.0.50
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]     Checking stable_deref_trait v1.1.1
[INFO] [stderr]     Checking fallible-iterator v0.2.0
[INFO] [stderr]    Compiling nix v0.13.1
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking regex-syntax v0.6.13
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]     Checking custom_derive v0.1.7
[INFO] [stderr]     Checking tap v0.4.0
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling num-bigint v0.2.5
[INFO] [stderr]    Compiling num-rational v0.2.3
[INFO] [stderr]    Compiling num-iter v0.1.40
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]     Checking thread_local v1.0.0
[INFO] [stderr]    Compiling scroll v0.9.2
[INFO] [stderr]    Compiling im-rc v13.0.0
[INFO] [stderr]     Checking smallvec v0.6.13
[INFO] [stderr]     Checking sized-chunks v0.3.1
[INFO] [stderr]    Compiling scroll_derive v0.9.5
[INFO] [stderr]     Checking intervaltree v0.2.4
[INFO] [stderr]     Checking gimli v0.19.0
[INFO] [stderr]     Checking aho-corasick v0.7.6
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]     Checking findshlibs v0.5.0
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking dirs v1.0.5
[INFO] [stderr]     Checking dirs-sys v0.3.4
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking goblin v0.0.24
[INFO] [stderr]     Checking regex v1.3.3
[INFO] [stderr]     Checking num v0.2.0
[INFO] [stderr]     Checking addr2line v0.10.0
[INFO] [stderr]     Checking rustyline v4.1.0
[INFO] [stderr]     Checking backtrace v0.3.40
[INFO] [stderr]     Checking color-backtrace v0.3.0
[INFO] [stderr]     Checking unseemly v0.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/ast.rs:54:81
[INFO] [stdout]    |
[INFO] [stdout] 54 |         extract!((v) crate::runtime::eval::Value::AbstractSyntax = (ref ast) => (ast.clone()))
[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 braces around block return value
[INFO] [stdout]   --> src/runtime/core_values.rs:65:37
[INFO] [stdout]    |
[INFO] [stdout] 65 |               ( Int(a), Int(b) ) => { val!(b a == b)} ),
[INFO] [stdout]    |                                     ^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]   --> src/runtime/core_values.rs:61:29
[INFO] [stdout]    |
[INFO] [stdout] 61 |               ( Int(a) ) => { val!(b   a == BigInt::from(0))}),
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]   --> src/runtime/core_values.rs:58:36
[INFO] [stdout]    |
[INFO] [stdout] 58 |              ( Int(a), Int(b) ) => { Int( a * b ) }),
[INFO] [stdout]    |                                    ^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]   --> src/runtime/core_values.rs:55:36
[INFO] [stdout]    |
[INFO] [stdout] 55 |              ( Int(a), Int(b) ) => { Int( a - b ) }),
[INFO] [stdout]    |                                    ^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]   --> src/runtime/core_values.rs:52:36
[INFO] [stdout]    |
[INFO] [stdout] 52 |              ( Int(a), Int(b) ) => { Int( a + b ) }),
[INFO] [stdout]    |                                    ^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/ast.rs:54:81
[INFO] [stdout]    |
[INFO] [stdout] 54 |         extract!((v) crate::runtime::eval::Value::AbstractSyntax = (ref ast) => (ast.clone()))
[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 braces around block return value
[INFO] [stdout]   --> src/runtime/core_values.rs:65:37
[INFO] [stdout]    |
[INFO] [stdout] 65 |               ( Int(a), Int(b) ) => { val!(b a == b)} ),
[INFO] [stdout]    |                                     ^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]   --> src/runtime/core_values.rs:61:29
[INFO] [stdout]    |
[INFO] [stdout] 61 |               ( Int(a) ) => { val!(b   a == BigInt::from(0))}),
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]   --> src/runtime/core_values.rs:58:36
[INFO] [stdout]    |
[INFO] [stdout] 58 |              ( Int(a), Int(b) ) => { Int( a * b ) }),
[INFO] [stdout]    |                                    ^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]   --> src/runtime/core_values.rs:55:36
[INFO] [stdout]    |
[INFO] [stdout] 55 |              ( Int(a), Int(b) ) => { Int( a - b ) }),
[INFO] [stdout]    |                                    ^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]   --> src/runtime/core_values.rs:52:36
[INFO] [stdout]    |
[INFO] [stdout] 52 |              ( Int(a), Int(b) ) => { Int( a + b ) }),
[INFO] [stdout]    |                                    ^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 49.30s
[INFO] running `Command { std: "docker" "inspect" "2928601a305b9c3dcba8a3cecaaacbe16fd5936404c0c0e04b01da31d405b052", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2928601a305b9c3dcba8a3cecaaacbe16fd5936404c0c0e04b01da31d405b052", kill_on_drop: false }`
[INFO] [stdout] 2928601a305b9c3dcba8a3cecaaacbe16fd5936404c0c0e04b01da31d405b052
