[INFO] updating cached repository https://github.com/Swiftaff/rust-learning-parser-combinators
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d892d8ab14330c61befaf439454c46c307b20345
[INFO] checking Swiftaff/rust-learning-parser-combinators against master#1557fb031b272b4c5bfcc7de5df7eddc7b36a584 for pr-73166
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSwiftaff%2Frust-learning-parser-combinators" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Swiftaff/rust-learning-parser-combinators on toolchain 1557fb031b272b4c5bfcc7de5df7eddc7b36a584
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Swiftaff/rust-learning-parser-combinators
[INFO] finished tweaking git repo https://github.com/Swiftaff/rust-learning-parser-combinators
[INFO] tweaked toml for git repo https://github.com/Swiftaff/rust-learning-parser-combinators written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/Swiftaff/rust-learning-parser-combinators already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1a0300392a7926aae80d060a4c02d66e3e6f8184c8aec10131b19e70e366a3ba
[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" "1a0300392a7926aae80d060a4c02d66e3e6f8184c8aec10131b19e70e366a3ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1a0300392a7926aae80d060a4c02d66e3e6f8184c8aec10131b19e70e366a3ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a0300392a7926aae80d060a4c02d66e3e6f8184c8aec10131b19e70e366a3ba", kill_on_drop: false }`
[INFO] [stdout] 1a0300392a7926aae80d060a4c02d66e3e6f8184c8aec10131b19e70e366a3ba
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a33ef6dc06a5f6b2b598a906541599a9f0875b4c78524a5fc2486fb2f114458c
[INFO] running `Command { std: "docker" "start" "-a" "a33ef6dc06a5f6b2b598a906541599a9f0875b4c78524a5fc2486fb2f114458c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking indextree v4.0.0
[INFO] [stderr]     Checking unicode-segmentation v1.6.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking colored v1.9.3
[INFO] [stderr]     Checking rust-learning-parser-combinators v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `test_language_arena`
[INFO] [stdout]    --> src/lib.rs:423:13
[INFO] [stdout]     |
[INFO] [stdout] 423 |         let test_language_arena = &mut self.language_arena;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_test_language_arena`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `language_arena_append_functionTypeAndParam` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:412:12
[INFO] [stdout]     |
[INFO] [stdout] 412 |     pub fn language_arena_append_functionTypeAndParam(
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `language_arena_append_function_type_and_param`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `test_printing_functionTypeAndParam` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:422:12
[INFO] [stdout]     |
[INFO] [stdout] 422 |     pub fn test_printing_functionTypeAndParam(mut self: Parser, s: &str) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `test_printing_function_type_and_param`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `language_arena_get_last_child_functionTypeAndParam` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:467:12
[INFO] [stdout]     |
[INFO] [stdout] 467 |     pub fn language_arena_get_last_child_functionTypeAndParam(
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `language_arena_get_last_child_function_type_and_param`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `test_language_arena`
[INFO] [stdout]    --> src/lib.rs:423:13
[INFO] [stdout]     |
[INFO] [stdout] 423 |         let test_language_arena = &mut self.language_arena;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_test_language_arena`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `language_arena_append_functionTypeAndParam` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:412:12
[INFO] [stdout]     |
[INFO] [stdout] 412 |     pub fn language_arena_append_functionTypeAndParam(
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `language_arena_append_function_type_and_param`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `test_printing_functionTypeAndParam` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:422:12
[INFO] [stdout]     |
[INFO] [stdout] 422 |     pub fn test_printing_functionTypeAndParam(mut self: Parser, s: &str) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `test_printing_function_type_and_param`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `language_arena_get_last_child_functionTypeAndParam` should have a snake case name
[INFO] [stdout]    --> src/lib.rs:467:12
[INFO] [stdout]     |
[INFO] [stdout] 467 |     pub fn language_arena_get_last_child_functionTypeAndParam(
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `language_arena_get_last_child_function_type_and_param`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.35s
[INFO] running `Command { std: "docker" "inspect" "a33ef6dc06a5f6b2b598a906541599a9f0875b4c78524a5fc2486fb2f114458c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a33ef6dc06a5f6b2b598a906541599a9f0875b4c78524a5fc2486fb2f114458c", kill_on_drop: false }`
[INFO] [stdout] a33ef6dc06a5f6b2b598a906541599a9f0875b4c78524a5fc2486fb2f114458c