[INFO] cloning repository https://github.com/m-bra/swirl
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/m-bra/swirl" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fm-bra%2Fswirl", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fm-bra%2Fswirl'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d9e79643be2b2dbb350e58e220ba176b0904ce4c
[INFO] checking m-bra/swirl/d9e79643be2b2dbb350e58e220ba176b0904ce4c against master#5b150d238fbd4fe7bc2cd3140d8e6fb4406099fa for pr-149901
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fm-bra%2Fswirl" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/m-bra/swirl
[INFO] finished tweaking git repo https://github.com/m-bra/swirl
[INFO] tweaked toml for git repo https://github.com/m-bra/swirl written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/m-bra/swirl on toolchain 5b150d238fbd4fe7bc2cd3140d8e6fb4406099fa
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5b150d238fbd4fe7bc2cd3140d8e6fb4406099fa" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5b150d238fbd4fe7bc2cd3140d8e6fb4406099fa" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 67 packages to latest compatible versions
[INFO] [stderr]       Adding criterion v0.3.6 (available: v0.8.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5b150d238fbd4fe7bc2cd3140d8e6fb4406099fa" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded meval v0.2.0
[INFO] [stderr]   Downloaded finally-block v0.2.0
[INFO] [stderr]   Downloaded criterion-plot v0.4.5
[INFO] [stderr]   Downloaded criterion v0.3.6
[INFO] [stderr]   Downloaded nom v1.2.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+5b150d238fbd4fe7bc2cd3140d8e6fb4406099fa" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 20948ca20eaaec157174be6ab0d4ff5ef1c6834901dd190847a7518ddb793527
[INFO] running `Command { std: "docker" "start" "-a" "20948ca20eaaec157174be6ab0d4ff5ef1c6834901dd190847a7518ddb793527", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "20948ca20eaaec157174be6ab0d4ff5ef1c6834901dd190847a7518ddb793527", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20948ca20eaaec157174be6ab0d4ff5ef1c6834901dd190847a7518ddb793527", kill_on_drop: false }`
[INFO] [stdout] 20948ca20eaaec157174be6ab0d4ff5ef1c6834901dd190847a7518ddb793527
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+5b150d238fbd4fe7bc2cd3140d8e6fb4406099fa" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a6caa1fabb3801ad7bc1fd1a4e6b80ff99c4ed8702430a091bf8b4f7e0308884
[INFO] running `Command { std: "docker" "start" "-a" "a6caa1fabb3801ad7bc1fd1a4e6b80ff99c4ed8702430a091bf8b4f7e0308884", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling serde_json v1.0.147
[INFO] [stderr]    Compiling libc v0.2.178
[INFO] [stderr]     Checking itoa v1.0.16
[INFO] [stderr]     Checking aho-corasick v1.1.4
[INFO] [stderr]     Checking regex-syntax v0.8.8
[INFO] [stderr]     Checking zmij v0.1.7
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking csv-core v0.1.13
[INFO] [stderr]     Checking half v1.8.3
[INFO] [stderr]     Checking ryu v1.0.21
[INFO] [stderr]    Compiling syn v2.0.111
[INFO] [stderr]     Checking criterion-plot v0.4.5
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking rayon v1.11.0
[INFO] [stderr]     Checking nom v1.2.4
[INFO] [stderr]     Checking finally-block v0.2.0
[INFO] [stderr]     Checking meval v0.2.0
[INFO] [stderr]     Checking plotters v0.3.7
[INFO] [stderr]     Checking regex-automata v0.4.13
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking csv v1.4.0
[INFO] [stderr]     Checking serde_cbor v0.11.2
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking regex v1.12.2
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]     Checking criterion v0.3.6
[INFO] [stderr]     Checking swirl v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the feature `core_intrinsics` is internal to the compiler or standard library
[INFO] [stdout]  --> src/main.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(core_intrinsics)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: using it is strongly discouraged
[INFO] [stdout]   = note: `#[warn(internal_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `core_intrinsics` is internal to the compiler or standard library
[INFO] [stdout]  --> src/main.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(core_intrinsics)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: using it is strongly discouraged
[INFO] [stdout]   = note: `#[warn(internal_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/util/mod.rs:79:5
[INFO] [stdout]    |
[INFO] [stdout] 79 |     unsafe {
[INFO] [stdout]    |     ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_unsafe)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0061]: this function takes 2 arguments but 1 argument was supplied
[INFO] [stdout]   --> src/mmatch/mod.rs:77:9
[INFO] [stdout]    |
[INFO] [stdout] 77 |         match_rule_invoc("::rule text"),
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^--------------- argument #2 of type `&std::collections::HashMap<String, rule::Rule>` is missing
[INFO] [stdout]    |
[INFO] [stdout] note: function defined here
[INFO] [stdout]   --> src/mmatch/mod.rs:92:8
[INFO] [stdout]    |
[INFO] [stdout] 92 | pub fn match_rule_invoc<'a>(input: &'a Input, rules: &Rules) -> MatchResult<(&'a Input, Invocation)> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^                       -------------
[INFO] [stdout] help: provide the argument
[INFO] [stdout]    |
[INFO] [stdout] 77 |         match_rule_invoc("::rule text", /* &std::collections::HashMap<String, rule::Rule> */),
[INFO] [stdout]    |                                       ++++++++++++++++++++++++++++++++++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0061]: this function takes 2 arguments but 1 argument was supplied
[INFO] [stdout]   --> src/mmatch/mod.rs:81:9
[INFO] [stdout]    |
[INFO] [stdout] 81 |         match_rule_invoc(":name:rule text"),
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^------------------- argument #2 of type `&std::collections::HashMap<String, rule::Rule>` is missing
[INFO] [stdout]    |
[INFO] [stdout] note: function defined here
[INFO] [stdout]   --> src/mmatch/mod.rs:92:8
[INFO] [stdout]    |
[INFO] [stdout] 92 | pub fn match_rule_invoc<'a>(input: &'a Input, rules: &Rules) -> MatchResult<(&'a Input, Invocation)> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^                       -------------
[INFO] [stdout] help: provide the argument
[INFO] [stdout]    |
[INFO] [stdout] 81 |         match_rule_invoc(":name:rule text", /* &std::collections::HashMap<String, rule::Rule> */),
[INFO] [stdout]    |                                           ++++++++++++++++++++++++++++++++++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0061]: this function takes 2 arguments but 1 argument was supplied
[INFO] [stdout]   --> src/mmatch/mod.rs:85:9
[INFO] [stdout]    |
[INFO] [stdout] 85 |         match_rule_invoc(":name:: text").is_err()
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^---------------- argument #2 of type `&std::collections::HashMap<String, rule::Rule>` is missing
[INFO] [stdout]    |
[INFO] [stdout] note: function defined here
[INFO] [stdout]   --> src/mmatch/mod.rs:92:8
[INFO] [stdout]    |
[INFO] [stdout] 92 | pub fn match_rule_invoc<'a>(input: &'a Input, rules: &Rules) -> MatchResult<(&'a Input, Invocation)> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^                       -------------
[INFO] [stdout] help: provide the argument
[INFO] [stdout]    |
[INFO] [stdout] 85 |         match_rule_invoc(":name:: text", /* &std::collections::HashMap<String, rule::Rule> */).is_err()
[INFO] [stdout]    |                                        ++++++++++++++++++++++++++++++++++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0061]: this function takes 2 arguments but 1 argument was supplied
[INFO] [stdout]   --> src/mmatch/mod.rs:88:9
[INFO] [stdout]    |
[INFO] [stdout] 88 |         match_rule_invoc("text :name:rule").is_err()
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^------------------- argument #2 of type `&std::collections::HashMap<String, rule::Rule>` is missing
[INFO] [stdout]    |
[INFO] [stdout] note: function defined here
[INFO] [stdout]   --> src/mmatch/mod.rs:92:8
[INFO] [stdout]    |
[INFO] [stdout] 92 | pub fn match_rule_invoc<'a>(input: &'a Input, rules: &Rules) -> MatchResult<(&'a Input, Invocation)> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^                       -------------
[INFO] [stdout] help: provide the argument
[INFO] [stdout]    |
[INFO] [stdout] 88 |         match_rule_invoc("text :name:rule", /* &std::collections::HashMap<String, rule::Rule> */).is_err()
[INFO] [stdout]    |                                           ++++++++++++++++++++++++++++++++++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `frame_result` is never read
[INFO] [stdout]    --> src/mmatch/match_rule_variant.rs:139:44
[INFO] [stdout]     |
[INFO] [stdout] 139 |                     let mut frame_result = Ok(("", InvocStrResult::empty())); // result of current frame
[INFO] [stdout]     |                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]    --> src/types/rule_variant.rs:190:19
[INFO] [stdout]     |
[INFO] [stdout] 190 |     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
[INFO] [stdout]     |                   ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/util/mod.rs:79:5
[INFO] [stdout]    |
[INFO] [stdout] 79 |     unsafe {
[INFO] [stdout]    |     ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_unsafe)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/main.rs:256:9
[INFO] [stdout]     |
[INFO] [stdout] 256 |         unsafe { ::std::intrinsics::breakpoint() }
[INFO] [stdout]     |         ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:245:9
[INFO] [stdout]     |
[INFO] [stdout] 245 |     let mut is_stepping = args.any(|s| s == "--step" || s == "-s");
[INFO] [stdout]     |         ----^^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/mmatch/mod.rs:58:69
[INFO] [stdout]    |
[INFO] [stdout] 58 | pub fn match_ident<'a>(input: &'a Input) -> MatchResult<(&'a Input, &str)> {
[INFO] [stdout]    |                                --                         --        ^^^^ the same lifetime is elided here
[INFO] [stdout]    |                                |                          |
[INFO] [stdout]    |                                |                          the same lifetime is named here
[INFO] [stdout]    |                                the lifetime is named here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 58 | pub fn match_ident<'a>(input: &'a Input) -> MatchResult<(&'a Input, &'a str)> {
[INFO] [stdout]    |                                                                      ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static variable `first` should have an upper case name
[INFO] [stdout]  --> src/mmatch/match_rule_variant.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | static mut first: bool = true;
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_upper_case_globals)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] help: convert the identifier to upper case
[INFO] [stdout]   |
[INFO] [stdout] 5 - static mut first: bool = true;
[INFO] [stdout] 5 + static mut FIRST: bool = true;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `frame_result` is never read
[INFO] [stdout]    --> src/mmatch/match_rule_variant.rs:139:44
[INFO] [stdout]     |
[INFO] [stdout] 139 |                     let mut frame_result = Ok(("", InvocStrResult::empty())); // result of current frame
[INFO] [stdout]     |                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]    --> src/types/rule_variant.rs:190:19
[INFO] [stdout]     |
[INFO] [stdout] 190 |     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
[INFO] [stdout]     |                   ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/main.rs:256:9
[INFO] [stdout]     |
[INFO] [stdout] 256 |         unsafe { ::std::intrinsics::breakpoint() }
[INFO] [stdout]     |         ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:245:9
[INFO] [stdout]     |
[INFO] [stdout] 245 |     let mut is_stepping = args.any(|s| s == "--step" || s == "-s");
[INFO] [stdout]     |         ----^^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0061`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `swirl` (bin "swirl" test) due to 4 previous errors; 6 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "a6caa1fabb3801ad7bc1fd1a4e6b80ff99c4ed8702430a091bf8b4f7e0308884", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6caa1fabb3801ad7bc1fd1a4e6b80ff99c4ed8702430a091bf8b4f7e0308884", kill_on_drop: false }`
[INFO] [stdout] a6caa1fabb3801ad7bc1fd1a4e6b80ff99c4ed8702430a091bf8b4f7e0308884
