[INFO] updating cached repository https://github.com/Geemili/mdproof
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/mnt/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 7cbd275d01f9eb25acf04c258ad2aa6878ce9151
[INFO] checking Geemili/mdproof against master#c9edc02e8320a9e5799d185910ece7d491f524e6 for pr-64398
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2FGeemili%2Fmdproof" "work/builds/worker-2/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Geemili/mdproof on toolchain c9edc02e8320a9e5799d185910ece7d491f524e6-alt
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+c9edc02e8320a9e5799d185910ece7d491f524e6-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/Geemili/mdproof
[INFO] finished tweaking git repo https://github.com/Geemili/mdproof
[INFO] tweaked toml for git repo https://github.com/Geemili/mdproof written to work/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/Geemili/mdproof already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+c9edc02e8320a9e5799d185910ece7d491f524e6-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "/opt/rustwide/cargo-home/bin/cargo" "+c9edc02e8320a9e5799d185910ece7d491f524e6-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 4c50b3a3a6946f207d6027708ade8fcd9d60a6f5c9f694062291e8d6aa1a1c3e
[INFO] running `"docker" "start" "-a" "4c50b3a3a6946f207d6027708ade8fcd9d60a6f5c9f694062291e8d6aa1a1c3e"`
[INFO] [stderr]    Compiling pulldown-cmark v0.2.0
[INFO] [stderr]     Checking pom v1.1.0
[INFO] [stderr]     Checking regex-syntax v0.6.3
[INFO] [stderr]     Checking stb_truetype v0.2.4
[INFO] [stderr]     Checking crossbeam-epoch v0.3.1
[INFO] [stderr]    Compiling structopt-derive v0.2.13
[INFO] [stderr]    Compiling num-derive v0.2.3
[INFO] [stderr]     Checking flate2 v0.2.20
[INFO] [stderr]     Checking quick-xml v0.13.1
[INFO] [stderr]     Checking crossbeam-deque v0.2.0
[INFO] [stderr]     Checking rusttype v0.7.3
[INFO] [stderr]     Checking lopdf v0.17.0
[INFO] [stderr]     Checking rayon-core v1.4.1
[INFO] [stderr]     Checking rayon v1.0.3
[INFO] [stderr]     Checking structopt v0.2.13
[INFO] [stderr]     Checking regex v1.0.6
[INFO] [stderr]     Checking tiff v0.2.1
[INFO] [stderr]     Checking env_logger v0.5.13
[INFO] [stderr]     Checking clap-verbosity-flag v0.1.0
[INFO] [stderr]     Checking jpeg-decoder v0.1.15
[INFO] [stderr]     Checking quicli v0.3.1
[INFO] [stderr]     Checking image v0.20.1
[INFO] [stderr]     Checking printpdf v0.2.10
[INFO] [stderr]     Checking mdproof v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: method is never used: `set_config`
[INFO] [stderr]   --> src/resources.rs:91:5
[INFO] [stderr]    |
[INFO] [stderr] 91 |     pub fn set_config(&mut self, config: Config) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `BlockQuote`
[INFO] [stderr]   --> src/style.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     BlockQuote(u8),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Note`
[INFO] [stderr]   --> src/style.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     Note,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Link`
[INFO] [stderr]   --> src/style.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     Link,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Superscript`
[INFO] [stderr]   --> src/style.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     Superscript,
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `set_config`
[INFO] [stderr]   --> src/resources.rs:91:5
[INFO] [stderr]    |
[INFO] [stderr] 91 |     pub fn set_config(&mut self, config: Config) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `BlockQuote`
[INFO] [stderr]   --> src/style.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     BlockQuote(u8),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Note`
[INFO] [stderr]   --> src/style.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     Note,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Link`
[INFO] [stderr]   --> src/style.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     Link,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Superscript`
[INFO] [stderr]   --> src/style.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     Superscript,
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 43.14s
[INFO] running `"docker" "inspect" "4c50b3a3a6946f207d6027708ade8fcd9d60a6f5c9f694062291e8d6aa1a1c3e"`
[INFO] running `"docker" "rm" "-f" "4c50b3a3a6946f207d6027708ade8fcd9d60a6f5c9f694062291e8d6aa1a1c3e"`
[INFO] [stdout] 4c50b3a3a6946f207d6027708ade8fcd9d60a6f5c9f694062291e8d6aa1a1c3e