[INFO] updating cached repository kesselborn/rsdocs2docset
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/kesselborn/rsdocs2docset
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/kesselborn/rsdocs2docset" "work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/gh/kesselborn/rsdocs2docset"`
[INFO] [stderr] Cloning into 'work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/gh/kesselborn/rsdocs2docset'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/kesselborn/rsdocs2docset" "work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/gh/kesselborn/rsdocs2docset"`
[INFO] [stderr] Cloning into 'work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/gh/kesselborn/rsdocs2docset'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f4290060d73125fbe5f058aa2b56f2903a7dd670
[INFO] sha for GitHub repo kesselborn/rsdocs2docset: f4290060d73125fbe5f058aa2b56f2903a7dd670
[INFO] validating manifest of kesselborn/rsdocs2docset on toolchain master#39401465da4ce27aeeb2c2a26133ac35c63aa515
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of kesselborn/rsdocs2docset on toolchain try#f45cc3094ee337acd688771b9234318046b0572d
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+f45cc3094ee337acd688771b9234318046b0572d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing kesselborn/rsdocs2docset
[INFO] finished frobbing kesselborn/rsdocs2docset
[INFO] frobbed toml for kesselborn/rsdocs2docset written to work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/gh/kesselborn/rsdocs2docset/Cargo.toml
[INFO] started frobbing kesselborn/rsdocs2docset
[INFO] finished frobbing kesselborn/rsdocs2docset
[INFO] frobbed toml for kesselborn/rsdocs2docset written to work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/gh/kesselborn/rsdocs2docset/Cargo.toml
[INFO] crate kesselborn/rsdocs2docset already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+f45cc3094ee337acd688771b9234318046b0572d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking kesselborn/rsdocs2docset against master#39401465da4ce27aeeb2c2a26133ac35c63aa515 for pr-60914
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60914/worker-5/master#39401465da4ce27aeeb2c2a26133ac35c63aa515:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/gh/kesselborn/rsdocs2docset:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] e78ec3d79f2dd6edf52f5553decfd1d25275b212af3503869b63a38c226b0e8e
[INFO] running `"docker" "start" "-a" "e78ec3d79f2dd6edf52f5553decfd1d25275b212af3503869b63a38c226b0e8e"`
[INFO] [stderr]     Checking phf_shared v0.7.20
[INFO] [stderr]     Checking mac v0.0.2
[INFO] [stderr]    Compiling sqlite3-src v0.2.4
[INFO] [stderr]    Compiling syn v0.10.6
[INFO] [stderr]     Checking utf-8 v0.6.0
[INFO] [stderr]     Checking term_size v0.2.1
[INFO] [stderr]    Compiling string_cache_codegen v0.3.1
[INFO] [stderr]     Checking clap v2.19.3
[INFO] [stderr]     Checking futf v0.1.2
[INFO] [stderr]     Checking phf v0.7.20
[INFO] [stderr]     Checking sqlite3-sys v0.11.1
[INFO] [stderr]     Checking tendril v0.2.3
[INFO] [stderr]    Compiling string_cache v0.3.0
[INFO] [stderr]    Compiling html5ever-atoms v0.1.3
[INFO] [stderr]     Checking sqlite v0.23.2
[INFO] [stderr]    Compiling html5ever v0.12.1
[INFO] [stderr]     Checking rsdocs2docset v0.4.1 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]  --> src/dom/manipulator.rs:6:23
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub fn add_dash_links(mut dom: &mut RcDom, entries: &[Option<Entry>]) {
[INFO] [stderr]   |                       ----^^^
[INFO] [stderr]   |                       |
[INFO] [stderr]   |                       help: remove this `mut`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]  --> src/dom/manipulator.rs:6:23
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub fn add_dash_links(mut dom: &mut RcDom, entries: &[Option<Entry>]) {
[INFO] [stderr]   |                       ----^^^
[INFO] [stderr]   |                       |
[INFO] [stderr]   |                       help: remove this `mut`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.21s
[INFO] running `"docker" "inspect" "e78ec3d79f2dd6edf52f5553decfd1d25275b212af3503869b63a38c226b0e8e"`
[INFO] running `"docker" "rm" "-f" "e78ec3d79f2dd6edf52f5553decfd1d25275b212af3503869b63a38c226b0e8e"`
[INFO] [stdout] e78ec3d79f2dd6edf52f5553decfd1d25275b212af3503869b63a38c226b0e8e