[INFO] fetching crate prefix-map 0.3.1...
[INFO] checking prefix-map-0.3.1 against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] extracting crate prefix-map 0.3.1 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate prefix-map 0.3.1 on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate prefix-map 0.3.1
[INFO] finished tweaking crates.io crate prefix-map 0.3.1
[INFO] tweaked toml for crates.io crate prefix-map 0.3.1 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] eebe33dc0910779bea4c8799b9ab6d2a139403a0b406a6b5c3b971329fcc4245
[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" "eebe33dc0910779bea4c8799b9ab6d2a139403a0b406a6b5c3b971329fcc4245", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eebe33dc0910779bea4c8799b9ab6d2a139403a0b406a6b5c3b971329fcc4245", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eebe33dc0910779bea4c8799b9ab6d2a139403a0b406a6b5c3b971329fcc4245", kill_on_drop: false }`
[INFO] [stdout] eebe33dc0910779bea4c8799b9ab6d2a139403a0b406a6b5c3b971329fcc4245
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3f25cd8a07541c4313393846b480359a5f90eac3b8ea67f16abb11bb1ee21cb3
[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" "3f25cd8a07541c4313393846b480359a5f90eac3b8ea67f16abb11bb1ee21cb3", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]     Checking unicode-segmentation v0.1.3
[INFO] [stderr]     Checking prefix-map v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0277]: the trait bound `<Self as ToOwned>::Owned: OwnedPrefix` is not satisfied
[INFO] [stdout]   --> src/prefix.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |       type OwnedPrefix: OwnedPrefix<Item=Self::OwnedItem> + Borrow<Self> =
[INFO] [stdout]    |       ^                 --------------------------------- required by this bound in `ToPrefix::OwnedPrefix`
[INFO] [stdout]    |  _____|
[INFO] [stdout]    | |
[INFO] [stdout] 15 | |         <Self as ToOwned>::Owned;
[INFO] [stdout]    | |_________________________________^ the trait `OwnedPrefix` is not implemented for `<Self as ToOwned>::Owned`
[INFO] [stdout]    |
[INFO] [stdout] help: consider further restricting the associated type
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub trait ToPrefix: ToOwned where <Self as ToOwned>::Owned: OwnedPrefix {
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0275]: overflow evaluating the requirement `<Self as ToPrefix>::OwnedItem == _`
[INFO] [stdout]   --> src/prefix.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | /     type OwnedItem: Borrow<Self::BorrowedItem> + Clone + Ord =
[INFO] [stdout] 20 | |         <Self::OwnedPrefix as OwnedPrefix>::Item;
[INFO] [stdout]    | |_________________________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0275, E0277.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0275`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `prefix-map`
[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" "3f25cd8a07541c4313393846b480359a5f90eac3b8ea67f16abb11bb1ee21cb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f25cd8a07541c4313393846b480359a5f90eac3b8ea67f16abb11bb1ee21cb3", kill_on_drop: false }`
[INFO] [stdout] 3f25cd8a07541c4313393846b480359a5f90eac3b8ea67f16abb11bb1ee21cb3