[INFO] cloning repository https://github.com/naughie/natex
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/naughie/natex" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnaughie%2Fnatex", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnaughie%2Fnatex'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9c978dbf0c07fc31e64fcd72aa311597c71ac983
[INFO] checking naughie/natex against try#b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b for pr-82781
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnaughie%2Fnatex" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/naughie/natex on toolchain b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/naughie/natex
[INFO] finished tweaking git repo https://github.com/naughie/natex
[INFO] tweaked toml for git repo https://github.com/naughie/natex written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/naughie/natex already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c2eaba4533f9f4b7e451425a379df03b06ddf7a94cb2fb81d916155b86cbc8ce
[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" "c2eaba4533f9f4b7e451425a379df03b06ddf7a94cb2fb81d916155b86cbc8ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c2eaba4533f9f4b7e451425a379df03b06ddf7a94cb2fb81d916155b86cbc8ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2eaba4533f9f4b7e451425a379df03b06ddf7a94cb2fb81d916155b86cbc8ce", kill_on_drop: false }`
[INFO] [stdout] c2eaba4533f9f4b7e451425a379df03b06ddf7a94cb2fb81d916155b86cbc8ce
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 13ef057275dbf3fb0814a5760f62ffaa398ae6871ef95b77ba4377fcd67db48f
[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" "13ef057275dbf3fb0814a5760f62ffaa398ae6871ef95b77ba4377fcd67db48f", kill_on_drop: false }`
[INFO] [stderr]     Checking natex v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `doc`
[INFO] [stdout]   --> src/states/outer_structure.rs:47:33
[INFO] [stdout]    |
[INFO] [stdout] 47 |     fn tran_document<T: Writer>(doc: Document, s: String, o: &mut T) -> Result<States, String> {
[INFO] [stdout]    |                                 ^^^ help: if this is intentional, prefix it with an underscore: `_doc`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `o`
[INFO] [stdout]   --> src/states/outer_structure.rs:47:59
[INFO] [stdout]    |
[INFO] [stdout] 47 |     fn tran_document<T: Writer>(doc: Document, s: String, o: &mut T) -> Result<States, String> {
[INFO] [stdout]    |                                                           ^ help: if this is intentional, prefix it with an underscore: `_o`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/states/outer_structure/document.rs:10:16
[INFO] [stdout]    |
[INFO] [stdout] 10 |     pub fn new(s: String) -> Result<Document, String> {
[INFO] [stdout]    |                ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `state`
[INFO] [stdout]  --> src/states/outer_structure/document.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     state: DocState,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `doc`
[INFO] [stdout]   --> src/states/outer_structure.rs:47:33
[INFO] [stdout]    |
[INFO] [stdout] 47 |     fn tran_document<T: Writer>(doc: Document, s: String, o: &mut T) -> Result<States, String> {
[INFO] [stdout]    |                                 ^^^ help: if this is intentional, prefix it with an underscore: `_doc`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `o`
[INFO] [stdout]   --> src/states/outer_structure.rs:47:59
[INFO] [stdout]    |
[INFO] [stdout] 47 |     fn tran_document<T: Writer>(doc: Document, s: String, o: &mut T) -> Result<States, String> {
[INFO] [stdout]    |                                                           ^ help: if this is intentional, prefix it with an underscore: `_o`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/states/outer_structure/document.rs:10:16
[INFO] [stdout]    |
[INFO] [stdout] 10 |     pub fn new(s: String) -> Result<Document, String> {
[INFO] [stdout]    |                ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `state`
[INFO] [stdout]  --> src/states/outer_structure/document.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     state: DocState,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.03s
[INFO] running `Command { std: "docker" "inspect" "13ef057275dbf3fb0814a5760f62ffaa398ae6871ef95b77ba4377fcd67db48f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "13ef057275dbf3fb0814a5760f62ffaa398ae6871ef95b77ba4377fcd67db48f", kill_on_drop: false }`
[INFO] [stdout] 13ef057275dbf3fb0814a5760f62ffaa398ae6871ef95b77ba4377fcd67db48f