[INFO] cloning repository https://github.com/styladev/hashcoll-fast
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/styladev/hashcoll-fast" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstyladev%2Fhashcoll-fast", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstyladev%2Fhashcoll-fast'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0afafd430de47cda605b2fd8094ebd4e28d82b61
[INFO] testing styladev/hashcoll-fast against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstyladev%2Fhashcoll-fast" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/styladev/hashcoll-fast on toolchain 62efba8a050c64249dab942951bb28f710208bc8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/styladev/hashcoll-fast
[INFO] finished tweaking git repo https://github.com/styladev/hashcoll-fast
[INFO] tweaked toml for git repo https://github.com/styladev/hashcoll-fast written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/styladev/hashcoll-fast already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 9c64c52d0c6eefa999379e116f2d687346884201af9437f0c80696d792c6e03d
[INFO] running `Command { std: "docker" "start" "-a" "9c64c52d0c6eefa999379e116f2d687346884201af9437f0c80696d792c6e03d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9c64c52d0c6eefa999379e116f2d687346884201af9437f0c80696d792c6e03d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c64c52d0c6eefa999379e116f2d687346884201af9437f0c80696d792c6e03d", kill_on_drop: false }`
[INFO] [stdout] 9c64c52d0c6eefa999379e116f2d687346884201af9437f0c80696d792c6e03d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 962e3529922ae91904022a9136e43a02f933d442c7fcedcdd5b39e3c2d8eb150
[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" "962e3529922ae91904022a9136e43a02f933d442c7fcedcdd5b39e3c2d8eb150", kill_on_drop: false }`
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.68
[INFO] [stderr]    Compiling syn v1.0.44
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling wee_alloc v0.4.5
[INFO] [stderr]    Compiling wasm-bindgen v0.2.68
[INFO] [stderr]    Compiling ahash v0.4.6
[INFO] [stderr]    Compiling hashbrown v0.9.1
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.68
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.68
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.68
[INFO] [stderr]    Compiling hashcoll v1.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: expected one of `!` or `::`, found keyword `use`
[INFO] [stdout]  --> src/lib.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | w
[INFO] [stdout]   |  - expected one of `!` or `::`
[INFO] [stdout] 7 | use alloc::vec::Vec;
[INFO] [stdout]   | ^^^ unexpected token
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `hashcoll` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "962e3529922ae91904022a9136e43a02f933d442c7fcedcdd5b39e3c2d8eb150", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "962e3529922ae91904022a9136e43a02f933d442c7fcedcdd5b39e3c2d8eb150", kill_on_drop: false }`
[INFO] [stdout] 962e3529922ae91904022a9136e43a02f933d442c7fcedcdd5b39e3c2d8eb150