[INFO] cloning repository https://github.com/CloneRob/Simple-Parse-Generator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/CloneRob/Simple-Parse-Generator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCloneRob%2FSimple-Parse-Generator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCloneRob%2FSimple-Parse-Generator'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ab705cbb92aca2a45a70f818daabbf37e0c3a18e
[INFO] checking CloneRob/Simple-Parse-Generator against try#8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8 for pr-82565
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FCloneRob%2FSimple-Parse-Generator" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/CloneRob/Simple-Parse-Generator on toolchain 8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/CloneRob/Simple-Parse-Generator
[INFO] finished tweaking git repo https://github.com/CloneRob/Simple-Parse-Generator
[INFO] tweaked toml for git repo https://github.com/CloneRob/Simple-Parse-Generator written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/CloneRob/Simple-Parse-Generator already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5b197762ed41ac6ad1580b5cd71a22ba68ebdd776ece66ae086693c7ac9d6fd3
[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" "5b197762ed41ac6ad1580b5cd71a22ba68ebdd776ece66ae086693c7ac9d6fd3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5b197762ed41ac6ad1580b5cd71a22ba68ebdd776ece66ae086693c7ac9d6fd3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b197762ed41ac6ad1580b5cd71a22ba68ebdd776ece66ae086693c7ac9d6fd3", kill_on_drop: false }`
[INFO] [stdout] 5b197762ed41ac6ad1580b5cd71a22ba68ebdd776ece66ae086693c7ac9d6fd3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f86d349378aa2b777c56d2e1455004980c8ba3e479f01011f9ce9417fa6d8c8f
[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" "f86d349378aa2b777c56d2e1455004980c8ba3e479f01011f9ce9417fa6d8c8f", 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]     Checking parse_generator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/set_builder.rs:89:33
[INFO] [stdout]    |
[INFO] [stdout] 89 |                     if let Some(mut ntfs) = first_set.get_mut(non_terminal) {
[INFO] [stdout]    |                                 ----^^^^
[INFO] [stdout]    |                                 |
[INFO] [stdout]    |                                 help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/set_builder.rs:89:33
[INFO] [stdout]    |
[INFO] [stdout] 89 |                     if let Some(mut ntfs) = first_set.get_mut(non_terminal) {
[INFO] [stdout]    |                                 ----^^^^
[INFO] [stdout]    |                                 |
[INFO] [stdout]    |                                 help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_sets`
[INFO] [stdout]   --> src/set_builder.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub fn get_sets(self)
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_first_set`
[INFO] [stdout]    --> src/set_builder.rs:198:12
[INFO] [stdout]     |
[INFO] [stdout] 198 |     pub fn get_first_set(&self) -> &HashMap<char, HashSet<char>> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_follow_set`
[INFO] [stdout]    --> src/set_builder.rs:201:12
[INFO] [stdout]     |
[INFO] [stdout] 201 |     pub fn get_follow_set(&self) -> &HashMap<char, HashSet<char>> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_sets`
[INFO] [stdout]   --> src/set_builder.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub fn get_sets(self)
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_first_set`
[INFO] [stdout]    --> src/set_builder.rs:198:12
[INFO] [stdout]     |
[INFO] [stdout] 198 |     pub fn get_first_set(&self) -> &HashMap<char, HashSet<char>> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_follow_set`
[INFO] [stdout]    --> src/set_builder.rs:201:12
[INFO] [stdout]     |
[INFO] [stdout] 201 |     pub fn get_follow_set(&self) -> &HashMap<char, HashSet<char>> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.87s
[INFO] running `Command { std: "docker" "inspect" "f86d349378aa2b777c56d2e1455004980c8ba3e479f01011f9ce9417fa6d8c8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f86d349378aa2b777c56d2e1455004980c8ba3e479f01011f9ce9417fa6d8c8f", kill_on_drop: false }`
[INFO] [stdout] f86d349378aa2b777c56d2e1455004980c8ba3e479f01011f9ce9417fa6d8c8f