[INFO] cloning repository https://github.com/alex-griffiths/md-pdf
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/alex-griffiths/md-pdf" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falex-griffiths%2Fmd-pdf", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falex-griffiths%2Fmd-pdf'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 763a399fb55f5df37af284d7c178dcc8e7c4cf37
[INFO] checking alex-griffiths/md-pdf against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falex-griffiths%2Fmd-pdf" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/alex-griffiths/md-pdf on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/alex-griffiths/md-pdf
[INFO] finished tweaking git repo https://github.com/alex-griffiths/md-pdf
[INFO] tweaked toml for git repo https://github.com/alex-griffiths/md-pdf written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/alex-griffiths/md-pdf already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e3b73afe1826fba5a894babb0c0f70650b77e18b3cef7df1463d6273a6fa6b6a
[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" "e3b73afe1826fba5a894babb0c0f70650b77e18b3cef7df1463d6273a6fa6b6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e3b73afe1826fba5a894babb0c0f70650b77e18b3cef7df1463d6273a6fa6b6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3b73afe1826fba5a894babb0c0f70650b77e18b3cef7df1463d6273a6fa6b6a", kill_on_drop: false }`
[INFO] [stdout] e3b73afe1826fba5a894babb0c0f70650b77e18b3cef7df1463d6273a6fa6b6a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7e05f8f2707096d7599065b94f4a741df43ceab9897694fb042e525c458c5bc2
[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" "7e05f8f2707096d7599065b94f4a741df43ceab9897694fb042e525c458c5bc2", kill_on_drop: false }`
[INFO] [stderr]     Checking md-parse v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `error`
[INFO] [stdout]   --> src/main.rs:31:13
[INFO] [stdout]    |
[INFO] [stdout] 31 |         Err(error) => {
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lexer.rs:40:9
[INFO] [stdout]    |
[INFO] [stdout] 40 |     let mut tokens: Vec<Token> = Vec::new();
[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: variant is never constructed: `H1`
[INFO] [stdout]  --> src/lexer.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     H1,
[INFO] [stdout]   |     ^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `H2`
[INFO] [stdout]  --> src/lexer.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     H2,
[INFO] [stdout]   |     ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `H3`
[INFO] [stdout]  --> src/lexer.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     H3,
[INFO] [stdout]   |     ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `H4`
[INFO] [stdout]  --> src/lexer.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     H4,
[INFO] [stdout]   |     ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `H5`
[INFO] [stdout]  --> src/lexer.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     H5,
[INFO] [stdout]   |     ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `H6`
[INFO] [stdout]  --> src/lexer.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     H6,
[INFO] [stdout]   |     ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Inline`
[INFO] [stdout]   --> src/lexer.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     Inline,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Block`
[INFO] [stdout]   --> src/lexer.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     Block,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Heading`
[INFO] [stdout]   --> src/lexer.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 |     Heading(HeadingLevel),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `StringVal`
[INFO] [stdout]   --> src/lexer.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     StringVal,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Code`
[INFO] [stdout]   --> src/lexer.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | /     Code {
[INFO] [stdout] 19 | |         kind: CodeKind
[INFO] [stdout] 20 | |     },
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Literal`
[INFO] [stdout]   --> src/lexer.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | /     Literal {
[INFO] [stdout] 22 | |         kind: LiteralKind,
[INFO] [stdout] 23 | |     },
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Int`
[INFO] [stdout]   --> src/lexer.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 |     Int,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Float`
[INFO] [stdout]   --> src/lexer.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 |     Float,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Char`
[INFO] [stdout]   --> src/lexer.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 | /     Char {
[INFO] [stdout] 30 | |         terminated: bool,
[INFO] [stdout] 31 | |     },
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `kind`
[INFO] [stdout]   --> src/lexer.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 |     kind: TokenKind,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `literal`
[INFO] [stdout]   --> src/lexer.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 36 |     literal: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `error`
[INFO] [stdout]   --> src/main.rs:31:13
[INFO] [stdout]    |
[INFO] [stdout] 31 |         Err(error) => {
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 19 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lexer.rs:40:9
[INFO] [stdout]    |
[INFO] [stdout] 40 |     let mut tokens: Vec<Token> = Vec::new();
[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: variant is never constructed: `H1`
[INFO] [stdout]  --> src/lexer.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     H1,
[INFO] [stdout]   |     ^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `H2`
[INFO] [stdout]  --> src/lexer.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     H2,
[INFO] [stdout]   |     ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `H3`
[INFO] [stdout]  --> src/lexer.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     H3,
[INFO] [stdout]   |     ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `H4`
[INFO] [stdout]  --> src/lexer.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     H4,
[INFO] [stdout]   |     ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `H5`
[INFO] [stdout]  --> src/lexer.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     H5,
[INFO] [stdout]   |     ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `H6`
[INFO] [stdout]  --> src/lexer.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     H6,
[INFO] [stdout]   |     ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Inline`
[INFO] [stdout]   --> src/lexer.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     Inline,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Block`
[INFO] [stdout]   --> src/lexer.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     Block,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Heading`
[INFO] [stdout]   --> src/lexer.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 |     Heading(HeadingLevel),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `StringVal`
[INFO] [stdout]   --> src/lexer.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     StringVal,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Code`
[INFO] [stdout]   --> src/lexer.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | /     Code {
[INFO] [stdout] 19 | |         kind: CodeKind
[INFO] [stdout] 20 | |     },
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Literal`
[INFO] [stdout]   --> src/lexer.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | /     Literal {
[INFO] [stdout] 22 | |         kind: LiteralKind,
[INFO] [stdout] 23 | |     },
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Int`
[INFO] [stdout]   --> src/lexer.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 |     Int,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Float`
[INFO] [stdout]   --> src/lexer.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 |     Float,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Char`
[INFO] [stdout]   --> src/lexer.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 | /     Char {
[INFO] [stdout] 30 | |         terminated: bool,
[INFO] [stdout] 31 | |     },
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `kind`
[INFO] [stdout]   --> src/lexer.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 |     kind: TokenKind,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `literal`
[INFO] [stdout]   --> src/lexer.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 36 |     literal: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 19 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.31s
[INFO] running `Command { std: "docker" "inspect" "7e05f8f2707096d7599065b94f4a741df43ceab9897694fb042e525c458c5bc2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e05f8f2707096d7599065b94f4a741df43ceab9897694fb042e525c458c5bc2", kill_on_drop: false }`
[INFO] [stdout] 7e05f8f2707096d7599065b94f4a741df43ceab9897694fb042e525c458c5bc2