[INFO] fetching crate univstring 0.4.3...
[INFO] checking univstring-0.4.3 against master#4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5 for pr-81174
[INFO] extracting crate univstring 0.4.3 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate univstring 0.4.3 on toolchain 4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate univstring 0.4.3
[INFO] finished tweaking crates.io crate univstring 0.4.3
[INFO] tweaked toml for crates.io crate univstring 0.4.3 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "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" "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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 51761b6beaaf4b41489c292b67b9f39b1a8d76a9272f19c5f30279d210e9f186
[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" "51761b6beaaf4b41489c292b67b9f39b1a8d76a9272f19c5f30279d210e9f186", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "51761b6beaaf4b41489c292b67b9f39b1a8d76a9272f19c5f30279d210e9f186", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51761b6beaaf4b41489c292b67b9f39b1a8d76a9272f19c5f30279d210e9f186", kill_on_drop: false }`
[INFO] [stdout] 51761b6beaaf4b41489c292b67b9f39b1a8d76a9272f19c5f30279d210e9f186
[INFO] running `Command { std: "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" "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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4d30c42c464922169cdc80617cd407445d4b62fa9f0602cdcd724abdd2b2b824
[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" "4d30c42c464922169cdc80617cd407445d4b62fa9f0602cdcd724abdd2b2b824", kill_on_drop: false }`
[INFO] [stderr]     Checking widestring v0.4.3
[INFO] [stderr]     Checking univstring v0.4.3 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/lib.rs:175:107
[INFO] [stdout]     |
[INFO] [stdout] 175 | ...ng::new(WideCStr::to_string(self)?).map(Cow::Owned).map_err(Into::into) }
[INFO] [stdout]     |                                ^^^^ expected struct `widestring::UCStr`, found struct `widestring::UCString`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected reference `&widestring::UCStr<u32>`
[INFO] [stdout]                found reference `&widestring::UCString<u16>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/lib.rs:175:107
[INFO] [stdout]     |
[INFO] [stdout] 175 | ...ng::new(WideCStr::to_string(self)?).map(Cow::Owned).map_err(Into::into) }
[INFO] [stdout]     |                                ^^^^ expected struct `widestring::UCStr`, found struct `widestring::UCString`
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected reference `&widestring::UCStr<u32>`
[INFO] [stdout]                found reference `&widestring::UCString<u16>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `univstring`
[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] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "4d30c42c464922169cdc80617cd407445d4b62fa9f0602cdcd724abdd2b2b824", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d30c42c464922169cdc80617cd407445d4b62fa9f0602cdcd724abdd2b2b824", kill_on_drop: false }`
[INFO] [stdout] 4d30c42c464922169cdc80617cd407445d4b62fa9f0602cdcd724abdd2b2b824