[INFO] cloning repository https://github.com/carado/utl-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/carado/utl-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcarado%2Futl-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcarado%2Futl-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 57f14158018721a3f55c62275bdeeba88fc4388a
[INFO] testing carado/utl-rs against 1.47.0 for beta-1.48-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcarado%2Futl-rs" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/carado/utl-rs on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/carado/utl-rs
[INFO] finished tweaking git repo https://github.com/carado/utl-rs
[INFO] tweaked toml for git repo https://github.com/carado/utl-rs written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/carado/utl-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 306ccbad33ac79a80a2c44fcfcb9f221299c78f553065631fd08711d9b71f896
[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" "306ccbad33ac79a80a2c44fcfcb9f221299c78f553065631fd08711d9b71f896", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "306ccbad33ac79a80a2c44fcfcb9f221299c78f553065631fd08711d9b71f896", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "306ccbad33ac79a80a2c44fcfcb9f221299c78f553065631fd08711d9b71f896", kill_on_drop: false }`
[INFO] [stdout] 306ccbad33ac79a80a2c44fcfcb9f221299c78f553065631fd08711d9b71f896
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=warn" "-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" "+1.47.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 63b31a65f2fffe9125605181a7e94fe09a7551507d755ee66546ad31cebd7ca2
[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" "63b31a65f2fffe9125605181a7e94fe09a7551507d755ee66546ad31cebd7ca2", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling libc v0.2.79
[INFO] [stderr]    Compiling syn v1.0.44
[INFO] [stderr]    Compiling smallvec v1.4.2
[INFO] [stderr]    Compiling half v1.6.0
[INFO] [stderr]    Compiling lock_api v0.4.1
[INFO] [stderr]    Compiling instant v0.1.7
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling parking_lot_core v0.8.0
[INFO] [stderr]    Compiling parking_lot v0.11.0
[INFO] [stderr]    Compiling derive_more v0.99.11
[INFO] [stderr]    Compiling utl v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `std::alloc::AllocError`
[INFO] [stdout]  --> src/cvec.rs:7:10
[INFO] [stdout]   |
[INFO] [stdout] 7 |     alloc::{AllocError, Layout, Global as Alloc, AllocRef},
[INFO] [stdout]   |             ^^^^^^^^^^
[INFO] [stdout]   |             |
[INFO] [stdout]   |             no `AllocError` in `alloc`
[INFO] [stdout]   |             help: a similar name exists in the module: `AllocErr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:1:1
[INFO] [stdout]    |
[INFO] [stdout] 1  | / #![feature(
[INFO] [stdout] 2  | |     raw,
[INFO] [stdout] 3  | |     coerce_unsized,
[INFO] [stdout] 4  | |     unsize,
[INFO] [stdout] ...  |
[INFO] [stdout] 15 | |     exact_size_is_empty,
[INFO] [stdout] 16 | | )]
[INFO] [stdout]    | |__^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0107]: wrong number of type arguments: expected 2, found 3
[INFO] [stdout]    --> src/entry_ext.rs:186:54
[INFO] [stdout]     |
[INFO] [stdout] 186 |         type OccupiedEntry = RawOccupiedEntryMut<'a, K, V, S>;
[INFO] [stdout]     |                                                            ^ unexpected type argument
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0107, E0432, E0554.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0107`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `utl`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "63b31a65f2fffe9125605181a7e94fe09a7551507d755ee66546ad31cebd7ca2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63b31a65f2fffe9125605181a7e94fe09a7551507d755ee66546ad31cebd7ca2", kill_on_drop: false }`
[INFO] [stdout] 63b31a65f2fffe9125605181a7e94fe09a7551507d755ee66546ad31cebd7ca2
