[INFO] fetching crate univstring 0.4.3...
[INFO] testing univstring-0.4.3 against master#5d5ff84130da0d74c6ece368dbe821d8f83fa526 for pr-79296
[INFO] extracting crate univstring 0.4.3 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate univstring 0.4.3 on toolchain 5d5ff84130da0d74c6ece368dbe821d8f83fa526
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "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-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3daed17d8dc499932febbb79d0ae8915f22f0767fcc0f3d2fc2d51b3d4dcc02f
[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" "3daed17d8dc499932febbb79d0ae8915f22f0767fcc0f3d2fc2d51b3d4dcc02f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3daed17d8dc499932febbb79d0ae8915f22f0767fcc0f3d2fc2d51b3d4dcc02f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3daed17d8dc499932febbb79d0ae8915f22f0767fcc0f3d2fc2d51b3d4dcc02f", kill_on_drop: false }`
[INFO] [stdout] 3daed17d8dc499932febbb79d0ae8915f22f0767fcc0f3d2fc2d51b3d4dcc02f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ac560b28d36de87fcfbbf7314ef77d883cf9a2a30f83f6528e19c47058172418
[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" "ac560b28d36de87fcfbbf7314ef77d883cf9a2a30f83f6528e19c47058172418", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling widestring v0.4.3
[INFO] [stderr]    Compiling 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: 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] running `Command { std: "docker" "inspect" "ac560b28d36de87fcfbbf7314ef77d883cf9a2a30f83f6528e19c47058172418", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac560b28d36de87fcfbbf7314ef77d883cf9a2a30f83f6528e19c47058172418", kill_on_drop: false }`
[INFO] [stdout] ac560b28d36de87fcfbbf7314ef77d883cf9a2a30f83f6528e19c47058172418