[INFO] cloning repository https://github.com/Vurich/mdfmt
[INFO] running `Command { std: "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", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVurich%2Fmdfmt'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a17289766919e470b1b48e9fe58307d6bc8bc75b
[INFO] checking Vurich/mdfmt against master#893fadd11a52aa26fc19c67ee1b79f03d6a1bed3 for pr-77153
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVurich%2Fmdfmt" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Vurich/mdfmt on toolchain 893fadd11a52aa26fc19c67ee1b79f03d6a1bed3
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+893fadd11a52aa26fc19c67ee1b79f03d6a1bed3" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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-4/source/Cargo.toml
[INFO] crate git repo https://github.com/Vurich/mdfmt already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+893fadd11a52aa26fc19c67ee1b79f03d6a1bed3" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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-4/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[INFO] the lockfile is outdated, regenerating it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 `Command { std: "/workspace/cargo-home/bin/cargo" "+893fadd11a52aa26fc19c67ee1b79f03d6a1bed3" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+893fadd11a52aa26fc19c67ee1b79f03d6a1bed3" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+893fadd11a52aa26fc19c67ee1b79f03d6a1bed3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 662b49cc8e4031e41d0a7fda95a80c7ad44d8e4f5e75f56fb74b1632f66f7f77
[INFO] running `Command { std: "docker" "start" "-a" "662b49cc8e4031e41d0a7fda95a80c7ad44d8e4f5e75f56fb74b1632f66f7f77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "662b49cc8e4031e41d0a7fda95a80c7ad44d8e4f5e75f56fb74b1632f66f7f77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "662b49cc8e4031e41d0a7fda95a80c7ad44d8e4f5e75f56fb74b1632f66f7f77", kill_on_drop: false }`
[INFO] [stdout] 662b49cc8e4031e41d0a7fda95a80c7ad44d8e4f5e75f56fb74b1632f66f7f77
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+893fadd11a52aa26fc19c67ee1b79f03d6a1bed3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 548f5f9fbc3d8779cd95db16596a82e83630462f9dc5221bd22eb2b02953b832
[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" "548f5f9fbc3d8779cd95db16596a82e83630462f9dc5221bd22eb2b02953b832", kill_on_drop: false }`
[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]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.42
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]    Compiling auto_enums_derive v0.7.7
[INFO] [stderr]    Compiling pulldown-cmark v0.8.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]    Compiling derive_utils v0.10.0
[INFO] [stderr]    Compiling auto_enums_core v0.7.7
[INFO] [stderr]    Compiling structopt-derive v0.4.11
[INFO] [stderr]     Checking auto_enums v0.7.7
[INFO] [stderr]     Checking structopt v0.3.18
[INFO] [stderr]     Checking mdfmt v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0532]: expected tuple struct or tuple variant, found unit variant `LinkType::Reference`
[INFO] [stdout]    --> src/main.rs:131:24
[INFO] [stdout]     |
[INFO] [stdout] 131 |                 if let LinkType::Reference(rname) = linktype {
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^ not a tuple struct or tuple variant
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0532]: expected tuple struct or tuple variant, found unit variant `LinkType::Reference`
[INFO] [stdout]    --> src/main.rs:181:34
[INFO] [stdout]     |
[INFO] [stdout] 181 |             Event::End(Tag::Link(LinkType::Reference(rname), target, title)) => {
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^^ not a tuple struct or tuple variant
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `auto_enums::auto_enum`
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use auto_enums::auto_enum;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `CowStr`
[INFO] [stdout]  --> src/main.rs:5:37
[INFO] [stdout]   |
[INFO] [stdout] 5 | use pulldown_cmark::{CodeBlockKind, CowStr, Event, LinkType, Parser, Tag};
[INFO] [stdout]   |                                     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `mem`, `self`
[INFO] [stdout]   --> src/main.rs:9:11
[INFO] [stdout]    |
[INFO] [stdout] 9  |     fmt::{self, Write as _},
[INFO] [stdout]    |           ^^^^
[INFO] [stdout] 10 |     fs, io, iter, mem,
[INFO] [stdout]    |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `NoHyphenation`
[INFO] [stdout]   --> src/main.rs:14:16
[INFO] [stdout]    |
[INFO] [stdout] 14 | use textwrap::{NoHyphenation, Wrapper};
[INFO] [stdout]    |                ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0532]: expected tuple struct or tuple variant, found unit variant `LinkType::Reference`
[INFO] [stdout]    --> src/main.rs:131:24
[INFO] [stdout]     |
[INFO] [stdout] 131 |                 if let LinkType::Reference(rname) = linktype {
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^ not a tuple struct or tuple variant
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0532]: expected tuple struct or tuple variant, found unit variant `LinkType::Reference`
[INFO] [stdout]    --> src/main.rs:181:34
[INFO] [stdout]     |
[INFO] [stdout] 181 |             Event::End(Tag::Link(LinkType::Reference(rname), target, title)) => {
[INFO] [stdout]     |                                  ^^^^^^^^^^^^^^^^^^^ not a tuple struct or tuple variant
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `auto_enums::auto_enum`
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use auto_enums::auto_enum;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `CowStr`
[INFO] [stdout]  --> src/main.rs:5:37
[INFO] [stdout]   |
[INFO] [stdout] 5 | use pulldown_cmark::{CodeBlockKind, CowStr, Event, LinkType, Parser, Tag};
[INFO] [stdout]   |                                     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `mem`, `self`
[INFO] [stdout]   --> src/main.rs:9:11
[INFO] [stdout]    |
[INFO] [stdout] 9  |     fmt::{self, Write as _},
[INFO] [stdout]    |           ^^^^
[INFO] [stdout] 10 |     fs, io, iter, mem,
[INFO] [stdout]    |                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `NoHyphenation`
[INFO] [stdout]   --> src/main.rs:14:16
[INFO] [stdout]    |
[INFO] [stdout] 14 | use textwrap::{NoHyphenation, Wrapper};
[INFO] [stdout]    |                ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0532`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mdfmt`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to 2 previous errors; 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0532`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "548f5f9fbc3d8779cd95db16596a82e83630462f9dc5221bd22eb2b02953b832", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "548f5f9fbc3d8779cd95db16596a82e83630462f9dc5221bd22eb2b02953b832", kill_on_drop: false }`
[INFO] [stdout] 548f5f9fbc3d8779cd95db16596a82e83630462f9dc5221bd22eb2b02953b832