[INFO] cloning repository https://github.com/Vurich/mdfmt
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Vurich/mdfmt" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVurich%2Fmdfmt"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVurich%2Fmdfmt'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a17289766919e470b1b48e9fe58307d6bc8bc75b
[INFO] testing Vurich/mdfmt against 1.44.0 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVurich%2Fmdfmt" "/workspace/builds/worker-2/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Vurich/mdfmt on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/Vurich/mdfmt
[INFO] removed path dependency pulldown-cmark from git repo https://github.com/Vurich/mdfmt
[INFO] finished tweaking git repo https://github.com/Vurich/mdfmt
[INFO] tweaked toml for git repo https://github.com/Vurich/mdfmt written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/Vurich/mdfmt already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] warning: dependency (pulldown-cmark) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: the lock file /workspace/builds/worker-2/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] warning: dependency (pulldown-cmark) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] running `"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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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" "+1.44.0" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e264ae8b872dd85190fe41da5f72fee918911d2b8812680e8cb5eb97a0f7df04
[INFO] running `"docker" "start" "-a" "e264ae8b872dd85190fe41da5f72fee918911d2b8812680e8cb5eb97a0f7df04"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: dependency (pulldown-cmark) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling syn v1.0.30
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling unicode-width v0.1.7
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]    Compiling auto_enums_derive v0.7.5
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling pulldown-cmark v0.7.1
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling getopts v0.2.21
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.2
[INFO] [stderr]    Compiling proc-macro-error v1.0.2
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling quote v1.0.6
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.33.1
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling derive_utils v0.10.0
[INFO] [stderr]    Compiling auto_enums_core v0.7.5
[INFO] [stderr]    Compiling structopt-derive v0.4.7
[INFO] [stderr]    Compiling auto_enums v0.7.5
[INFO] [stderr]    Compiling structopt v0.3.14
[INFO] [stderr]    Compiling mdfmt v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0532]: expected tuple struct or tuple variant, found unit variant `LinkType::Reference`
[INFO] [stderr]    --> src/main.rs:131:24
[INFO] [stderr]     |
[INFO] [stderr] 131 |                 if let LinkType::Reference(rname) = linktype {
[INFO] [stderr]     |                        ^^^^^^^^^^^^^^^^^^^ not a tuple struct or tuple variant
[INFO] [stderr] 
[INFO] [stderr] error[E0532]: expected tuple struct or tuple variant, found unit variant `LinkType::Reference`
[INFO] [stderr]    --> src/main.rs:181:34
[INFO] [stderr]     |
[INFO] [stderr] 181 |             Event::End(Tag::Link(LinkType::Reference(rname), target, title)) => {
[INFO] [stderr]     |                                  ^^^^^^^^^^^^^^^^^^^ not a tuple struct or tuple variant
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stderr]  --> src/main.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(proc_macro_hygiene, or_patterns)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `auto_enums::auto_enum`
[INFO] [stderr]  --> src/main.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use auto_enums::auto_enum;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `CowStr`
[INFO] [stderr]  --> src/main.rs:5:37
[INFO] [stderr]   |
[INFO] [stderr] 5 | use pulldown_cmark::{CodeBlockKind, CowStr, Event, LinkType, Parser, Tag};
[INFO] [stderr]   |                                     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `mem`, `self`
[INFO] [stderr]   --> src/main.rs:9:11
[INFO] [stderr]    |
[INFO] [stderr] 9  |     fmt::{self, Write as _},
[INFO] [stderr]    |           ^^^^
[INFO] [stderr] 10 |     fs, io, iter, mem,
[INFO] [stderr]    |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `NoHyphenation`
[INFO] [stderr]   --> src/main.rs:14:16
[INFO] [stderr]    |
[INFO] [stderr] 14 | use textwrap::{NoHyphenation, Wrapper};
[INFO] [stderr]    |                ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors; 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0532, E0554.
[INFO] [stderr] For more information about an error, try `rustc --explain E0532`.
[INFO] [stderr] error: could not compile `mdfmt`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "e264ae8b872dd85190fe41da5f72fee918911d2b8812680e8cb5eb97a0f7df04"`
[INFO] running `"docker" "rm" "-f" "e264ae8b872dd85190fe41da5f72fee918911d2b8812680e8cb5eb97a0f7df04"`
[INFO] [stdout] e264ae8b872dd85190fe41da5f72fee918911d2b8812680e8cb5eb97a0f7df04