[INFO] fetching crate kelvin 0.19.0...
[INFO] testing kelvin-0.19.0 against 1.47.0 for beta-1.48-1
[INFO] extracting crate kelvin 0.19.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate kelvin 0.19.0 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 crates.io crate kelvin 0.19.0
[INFO] finished tweaking crates.io crate kelvin 0.19.0
[INFO] tweaked toml for crates.io crate kelvin 0.19.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 1c4b2761ac5d22d710d1c51357dc8a9b599e1ab256b4b05da983a7dbf5bcaf3a
[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" "1c4b2761ac5d22d710d1c51357dc8a9b599e1ab256b4b05da983a7dbf5bcaf3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1c4b2761ac5d22d710d1c51357dc8a9b599e1ab256b4b05da983a7dbf5bcaf3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c4b2761ac5d22d710d1c51357dc8a9b599e1ab256b4b05da983a7dbf5bcaf3a", kill_on_drop: false }`
[INFO] [stdout] 1c4b2761ac5d22d710d1c51357dc8a9b599e1ab256b4b05da983a7dbf5bcaf3a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 1890bbafd9766ffb7e51d4bdae406aefba3882c5653d9010e1cfd0b41ecc9af9
[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" "1890bbafd9766ffb7e51d4bdae406aefba3882c5653d9010e1cfd0b41ecc9af9", kill_on_drop: false }`
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]    Compiling seahash v3.0.7
[INFO] [stderr]    Compiling stable-heap v0.1.0
[INFO] [stderr]    Compiling owning_ref v0.3.3
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling memmap v0.7.0
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling atomicwrites v0.2.5
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling num-iter v0.1.41
[INFO] [stderr]    Compiling env_logger v0.6.2
[INFO] [stderr]    Compiling derive_arbitrary v0.3.3
[INFO] [stderr]    Compiling futures-util v0.3.6
[INFO] [stderr]    Compiling parking_lot_core v0.2.14
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling parking_lot v0.4.8
[INFO] [stderr]    Compiling cache v0.2.0
[INFO] [stderr]    Compiling blake2-rfc v0.2.18
[INFO] [stderr]    Compiling bytehash v0.3.0
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling parking_lot_core v0.4.0
[INFO] [stderr]    Compiling quickcheck v0.8.5
[INFO] [stderr]    Compiling arbitrary v0.3.3
[INFO] [stderr]    Compiling parking_lot v0.7.1
[INFO] [stderr]    Compiling num v0.2.1
[INFO] [stderr]    Compiling appendix v0.2.0
[INFO] [stderr]    Compiling futures-executor v0.3.6
[INFO] [stderr]    Compiling futures v0.3.6
[INFO] [stderr]    Compiling kelvin v0.19.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 27.61s
[INFO] running `Command { std: "docker" "inspect" "1890bbafd9766ffb7e51d4bdae406aefba3882c5653d9010e1cfd0b41ecc9af9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1890bbafd9766ffb7e51d4bdae406aefba3882c5653d9010e1cfd0b41ecc9af9", kill_on_drop: false }`
[INFO] [stdout] 1890bbafd9766ffb7e51d4bdae406aefba3882c5653d9010e1cfd0b41ecc9af9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b0f77efed1da81931eb80f9188053a5d1b42d2688172924f00721f63aa09f493
[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" "b0f77efed1da81931eb80f9188053a5d1b42d2688172924f00721f63aa09f493", kill_on_drop: false }`
[INFO] [stderr]    Compiling kelvin v0.19.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `kelvin_hamt`
[INFO] [stdout]  --> tests/proof.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use kelvin_hamt::{HAMTSearch, NarrowHAMT};
[INFO] [stdout]   |     ^^^^^^^^^^^ use of undeclared type or module `kelvin_hamt`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Compound`
[INFO] [stdout]  --> tests/proof.rs:1:23
[INFO] [stdout]   |
[INFO] [stdout] 1 | use kelvin::{Blake2b, Compound, Void, KV};
[INFO] [stdout]   |                       ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `kelvin_hamt`
[INFO] [stdout]  --> tests/nth.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use kelvin_hamt::HAMT;
[INFO] [stdout]   |     ^^^^^^^^^^^ use of undeclared type or module `kelvin_hamt`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `kelvin`.
[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] [stdout] error[E0432]: unresolved import `kelvin_hamt`
[INFO] [stdout]  --> tests/root_hash.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use kelvin_hamt::HAMT;
[INFO] [stdout]   |     ^^^^^^^^^^^ use of undeclared type or module `kelvin_hamt`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `GetNth`
[INFO] [stdout]  --> tests/nth.rs:1:40
[INFO] [stdout]   |
[INFO] [stdout] 1 | use kelvin::annotations::{Cardinality, GetNth};
[INFO] [stdout]   |                                        ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `LeafIterable`
[INFO] [stdout]  --> tests/nth.rs:2:23
[INFO] [stdout]   |
[INFO] [stdout] 2 | use kelvin::{Blake2b, LeafIterable};
[INFO] [stdout]   |                       ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `hash` found for struct `kelvin::Snapshot<_, _>` in the current scope
[INFO] [stdout]   --> tests/root_hash.rs:20:33
[INFO] [stdout]    |
[INFO] [stdout] 20 |     assert_eq!(&root_hash, snap.hash());
[INFO] [stdout]    |                                 ^^^^ private field, not a method
[INFO] [stdout]    |
[INFO] [stdout]    = note: `snap` is a function, perhaps you wish to call it
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Compound`
[INFO] [stdout]  --> tests/root_hash.rs:1:23
[INFO] [stdout]   |
[INFO] [stdout] 1 | use kelvin::{Blake2b, Compound, Store, Void};
[INFO] [stdout]   |                       ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "b0f77efed1da81931eb80f9188053a5d1b42d2688172924f00721f63aa09f493", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0f77efed1da81931eb80f9188053a5d1b42d2688172924f00721f63aa09f493", kill_on_drop: false }`
[INFO] [stdout] b0f77efed1da81931eb80f9188053a5d1b42d2688172924f00721f63aa09f493
