[INFO] fetching crate nom-peg 0.1.1...
[INFO] checking nom-peg-0.1.1 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] extracting crate nom-peg 0.1.1 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate nom-peg 0.1.1 on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate nom-peg 0.1.1
[INFO] finished tweaking crates.io crate nom-peg 0.1.1
[INFO] tweaked toml for crates.io crate nom-peg 0.1.1 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 8 packages to latest compatible versions
[INFO] [stderr]       Adding nom v4.2.3 (latest: v7.1.3)
[INFO] [stderr]       Adding proc-macro2 v0.4.30 (latest: v1.0.86)
[INFO] [stderr]       Adding quote v0.6.13 (latest: v1.0.37)
[INFO] [stderr]       Adding syn v0.15.44 (latest: v2.0.77)
[INFO] [stderr]       Adding unicode-xid v0.1.0 (latest: v0.2.5)
[INFO] [stderr]       Adding version_check v0.1.5 (latest: v0.9.5)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 00e074def22460729a3c5a2b84c83bc288e1ceeb60f8d6b852ec5353f4f6a8b7
[INFO] running `Command { std: "docker" "start" "-a" "00e074def22460729a3c5a2b84c83bc288e1ceeb60f8d6b852ec5353f4f6a8b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "00e074def22460729a3c5a2b84c83bc288e1ceeb60f8d6b852ec5353f4f6a8b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "00e074def22460729a3c5a2b84c83bc288e1ceeb60f8d6b852ec5353f4f6a8b7", kill_on_drop: false }`
[INFO] [stdout] 00e074def22460729a3c5a2b84c83bc288e1ceeb60f8d6b852ec5353f4f6a8b7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ab87bada3d054e81428167fda5cf7f46a95f7a452be32bf256869524407c78a8
[INFO] running `Command { std: "docker" "start" "-a" "ab87bada3d054e81428167fda5cf7f46a95f7a452be32bf256869524407c78a8", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking unicode-xid v0.1.0
[INFO] [stderr]     Checking memchr v2.7.4
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]     Checking quote v0.6.13
[INFO] [stderr]     Checking nom-peg v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: suffixes on a tuple index are invalid
[INFO] [stdout]   --> tests/json.rs:25:16
[INFO] [stdout]    |
[INFO] [stdout] 25 |       let json = grammar! {
[INFO] [stdout]    |  ________________^
[INFO] [stdout] 26 | |         parse: JsonValue = <value> "="
[INFO] [stdout] 27 | |
[INFO] [stdout] 28 | |         num: f32 = ::recognize_float => { result.parse::<f32>().unwrap() }
[INFO] [stdout] ...  |
[INFO] [stdout] 51 | |                          | boolean => { JsonValue::Boolean(result) }
[INFO] [stdout] 52 | |     };
[INFO] [stdout]    | |_____^ invalid suffix `usize`
[INFO] [stdout]    |
[INFO] [stdout]    = help: `usize` is *temporarily* accepted on tuple index fields as it was incorrectly accepted on stable for a few releases
[INFO] [stdout]    = help: on proc macros, you'll want to use `syn::Index::from` or `proc_macro::Literal::*_unsuffixed` for code that will desugar to tuple field access
[INFO] [stdout]    = help: see issue #60210 <https://github.com/rust-lang/rust/issues/60210> for more information
[INFO] [stdout]    = note: this warning originates in the macro `grammar` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: suffixes on a tuple index are invalid
[INFO] [stdout]   --> tests/basic.rs:39:22
[INFO] [stdout]    |
[INFO] [stdout] 39 |       let arithmetic = grammar! {
[INFO] [stdout]    |  ______________________^
[INFO] [stdout] 40 | |         parse: i64 = <expr> "="
[INFO] [stdout] 41 | |
[INFO] [stdout] 42 | |         expr: i64 = <l: product> "+" <r: expr> => { l + r }
[INFO] [stdout] ...  |
[INFO] [stdout] 51 | |                    | "(" <expr> ")"
[INFO] [stdout] 52 | |     };
[INFO] [stdout]    | |_____^ invalid suffix `usize`
[INFO] [stdout]    |
[INFO] [stdout]    = help: `usize` is *temporarily* accepted on tuple index fields as it was incorrectly accepted on stable for a few releases
[INFO] [stdout]    = help: on proc macros, you'll want to use `syn::Index::from` or `proc_macro::Literal::*_unsuffixed` for code that will desugar to tuple field access
[INFO] [stdout]    = help: see issue #60210 <https://github.com/rust-lang/rust/issues/60210> for more information
[INFO] [stdout]    = note: this warning originates in the macro `grammar` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]   --> tests/json.rs:28:41
[INFO] [stdout]    |
[INFO] [stdout] 28 |         num: f32 = ::recognize_float => { result.parse::<f32>().unwrap() }
[INFO] [stdout]    |                                         ^^                              ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stdout] help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout] 28 -         num: f32 = ::recognize_float => { result.parse::<f32>().unwrap() }
[INFO] [stdout] 28 +         num: f32 = ::recognize_float => result.parse::<f32>().unwrap()
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]   --> tests/json.rs:32:36
[INFO] [stdout]    |
[INFO] [stdout] 32 |         boolean: bool = "false" => { false }
[INFO] [stdout]    |                                    ^^     ^^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout] 32 -         boolean: bool = "false" => { false }
[INFO] [stdout] 32 +         boolean: bool = "false" => false
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]   --> tests/json.rs:33:35
[INFO] [stdout]    |
[INFO] [stdout] 33 |                       | "true" => { true }
[INFO] [stdout]    |                                   ^^    ^^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout] 33 -                       | "true" => { true }
[INFO] [stdout] 33 +                       | "true" => true
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]   --> tests/json.rs:47:36
[INFO] [stdout]    |
[INFO] [stdout] 47 |         value: JsonValue = hash => { JsonValue::Object(result) }
[INFO] [stdout]    |                                    ^^                         ^^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout] 47 -         value: JsonValue = hash => { JsonValue::Object(result) }
[INFO] [stdout] 47 +         value: JsonValue = hash => JsonValue::Object(result)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]   --> tests/json.rs:48:37
[INFO] [stdout]    |
[INFO] [stdout] 48 |                          | array => { JsonValue::Array(result) }
[INFO] [stdout]    |                                     ^^                        ^^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout] 48 -                          | array => { JsonValue::Array(result) }
[INFO] [stdout] 48 +                          | array => JsonValue::Array(result)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]   --> tests/json.rs:49:38
[INFO] [stdout]    |
[INFO] [stdout] 49 |                          | string => { JsonValue::Str(String::from(result)) }
[INFO] [stdout]    |                                      ^^                                    ^^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout] 49 -                          | string => { JsonValue::Str(String::from(result)) }
[INFO] [stdout] 49 +                          | string => JsonValue::Str(String::from(result))
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]   --> tests/json.rs:50:35
[INFO] [stdout]    |
[INFO] [stdout] 50 |                          | num => { JsonValue::Num(result) }
[INFO] [stdout]    |                                   ^^                      ^^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout] 50 -                          | num => { JsonValue::Num(result) }
[INFO] [stdout] 50 +                          | num => JsonValue::Num(result)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]   --> tests/json.rs:51:39
[INFO] [stdout]    |
[INFO] [stdout] 51 |                          | boolean => { JsonValue::Boolean(result) }
[INFO] [stdout]    |                                       ^^                          ^^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout] 51 -                          | boolean => { JsonValue::Boolean(result) }
[INFO] [stdout] 51 +                          | boolean => JsonValue::Boolean(result)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]   --> tests/basic.rs:42:51
[INFO] [stdout]    |
[INFO] [stdout] 42 |         expr: i64 = <l: product> "+" <r: expr> => { l + r }
[INFO] [stdout]    |                                                   ^^     ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stdout] help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout] 42 -         expr: i64 = <l: product> "+" <r: expr> => { l + r }
[INFO] [stdout] 42 +         expr: i64 = <l: product> "+" <r: expr> => l + r
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]   --> tests/basic.rs:43:51
[INFO] [stdout]    |
[INFO] [stdout] 43 |                   | <l: product> "+" <r: expr> => { l - r }
[INFO] [stdout]    |                                                   ^^     ^^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout] 43 -                   | <l: product> "+" <r: expr> => { l - r }
[INFO] [stdout] 43 +                   | <l: product> "+" <r: expr> => l - r
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]   --> tests/basic.rs:46:55
[INFO] [stdout]    |
[INFO] [stdout] 46 |         product: i64 = <l: value> "*" <r: product> => { l * r }
[INFO] [stdout]    |                                                       ^^     ^^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout] 46 -         product: i64 = <l: value> "*" <r: product> => { l * r }
[INFO] [stdout] 46 +         product: i64 = <l: value> "*" <r: product> => l * r
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]   --> tests/basic.rs:47:55
[INFO] [stdout]    |
[INFO] [stdout] 47 |                      | <l: value> "/" <r: product> => { l / r }
[INFO] [stdout]    |                                                       ^^     ^^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout] 47 -                      | <l: value> "/" <r: product> => { l / r }
[INFO] [stdout] 47 +                      | <l: value> "/" <r: product> => l / r
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]   --> tests/basic.rs:50:68
[INFO] [stdout]    |
[INFO] [stdout] 50 |         value: i64 = ("0"|"1"|"2"|"3"|"4"|"5"|"6"|"7"|"8"|"9")+ => { result.join("").parse::<i64>().unwrap() }
[INFO] [stdout]    |                                                                    ^^                                       ^^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout] 50 -         value: i64 = ("0"|"1"|"2"|"3"|"4"|"5"|"6"|"7"|"8"|"9")+ => { result.join("").parse::<i64>().unwrap() }
[INFO] [stdout] 50 +         value: i64 = ("0"|"1"|"2"|"3"|"4"|"5"|"6"|"7"|"8"|"9")+ => result.join("").parse::<i64>().unwrap()
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]   --> tests/basic.rs:77:28
[INFO] [stdout]    |
[INFO] [stdout] 77 |         p = &"a"* "a"*  => { "yay" }
[INFO] [stdout]    |                            ^^     ^^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout] 77 -         p = &"a"* "a"*  => { "yay" }
[INFO] [stdout] 77 +         p = &"a"* "a"*  => "yay"
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]   --> tests/basic.rs:78:38
[INFO] [stdout]    |
[INFO] [stdout] 78 |         q: String = a ("b" | "c") => { result.0 }
[INFO] [stdout]    |                                      ^^        ^^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout] 78 -         q: String = a ("b" | "c") => { result.0 }
[INFO] [stdout] 78 +         q: String = a ("b" | "c") => result.0
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]   --> tests/basic.rs:79:22
[INFO] [stdout]    |
[INFO] [stdout] 79 |           | a "d" => { result.0 }
[INFO] [stdout]    |                      ^^        ^^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout] 79 -           | a "d" => { result.0 }
[INFO] [stdout] 79 +           | a "d" => result.0
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]   --> tests/basic.rs:81:29
[INFO] [stdout]    |
[INFO] [stdout] 81 |         a: String = "a"* => { result.join("") }
[INFO] [stdout]    |                             ^^               ^^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout] 81 -         a: String = "a"* => { result.join("") }
[INFO] [stdout] 81 +         a: String = "a"* => result.join("")
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.00s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nom v4.2.3
[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" "ab87bada3d054e81428167fda5cf7f46a95f7a452be32bf256869524407c78a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab87bada3d054e81428167fda5cf7f46a95f7a452be32bf256869524407c78a8", kill_on_drop: false }`
[INFO] [stdout] ab87bada3d054e81428167fda5cf7f46a95f7a452be32bf256869524407c78a8