[INFO] crate kitty_pool 0.1.0 is already in cache
[INFO] extracting crate kitty_pool 0.1.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/kitty_pool/0.1.0
[INFO] extracting crate kitty_pool 0.1.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/kitty_pool/0.1.0
[INFO] validating manifest of kitty_pool-0.1.0 on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of kitty_pool-0.1.0 on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing kitty_pool-0.1.0
[INFO] finished frobbing kitty_pool-0.1.0
[INFO] frobbed toml for kitty_pool-0.1.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/kitty_pool/0.1.0/Cargo.toml
[INFO] started frobbing kitty_pool-0.1.0
[INFO] finished frobbing kitty_pool-0.1.0
[INFO] frobbed toml for kitty_pool-0.1.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/kitty_pool/0.1.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing kitty_pool-0.1.0 against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/kitty_pool/0.1.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] b8c9e05eaa6ab3671a53b16b247b5609d3ae62148a472cdaf9f028df72c21b77
[INFO] running `"docker" "start" "-a" "b8c9e05eaa6ab3671a53b16b247b5609d3ae62148a472cdaf9f028df72c21b77"`
[INFO] [stderr] warning: `panic` setting is ignored for `test` profile
[INFO] [stderr] warning: `panic` setting is ignored for `bench` profile
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling arrayvec v0.4.11
[INFO] [stderr]    Compiling stable_deref_trait v1.1.1
[INFO] [stderr]    Compiling nodrop v0.1.13
[INFO] [stderr]    Compiling cfg-if v0.1.9
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling lazy_static v1.3.0
[INFO] [stderr]    Compiling scopeguard v0.3.3
[INFO] [stderr]    Compiling smallvec v0.6.10
[INFO] [stderr]    Compiling scopeguard v1.0.0
[INFO] [stderr]    Compiling getrandom v0.1.10
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling futures v0.1.28
[INFO] [stderr]    Compiling slab v0.4.2
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling fnv v1.0.6
[INFO] [stderr]    Compiling serde v1.0.99
[INFO] [stderr]    Compiling ppv-lite86 v0.2.5
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling owning_ref v0.4.0
[INFO] [stderr]    Compiling crossbeam-utils v0.6.6
[INFO] [stderr]    Compiling iovec v0.1.2
[INFO] [stderr]    Compiling net2 v0.2.33
[INFO] [stderr]    Compiling num_cpus v1.10.1
[INFO] [stderr]    Compiling lock_api v0.1.5
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]    Compiling rand_core v0.5.0
[INFO] [stderr]    Compiling mio v0.6.19
[INFO] [stderr]    Compiling c2-chacha v0.2.2
[INFO] [stderr]    Compiling crossbeam-queue v0.1.2
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling memoffset v0.5.1
[INFO] [stderr]    Compiling parking_lot_core v0.4.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.7.2
[INFO] [stderr]    Compiling mio-uds v0.6.7
[INFO] [stderr]    Compiling rand_chacha v0.2.1
[INFO] [stderr]    Compiling tokio-io v0.1.12
[INFO] [stderr]    Compiling tokio-executor v0.1.8
[INFO] [stderr]    Compiling tokio-sync v0.1.6
[INFO] [stderr]    Compiling rand v0.7.0
[INFO] [stderr]    Compiling tokio-timer v0.2.11
[INFO] [stderr]    Compiling tokio-current-thread v0.1.6
[INFO] [stderr]    Compiling parking_lot v0.7.1
[INFO] [stderr]    Compiling crossbeam-deque v0.7.1
[INFO] [stderr]    Compiling tokio-codec v0.1.1
[INFO] [stderr]    Compiling tokio-async-await v0.1.7
[INFO] [stderr]    Compiling tokio-threadpool v0.1.15
[INFO] [stderr]    Compiling tokio-reactor v0.1.9
[INFO] [stderr]    Compiling tokio-uds v0.2.5
[INFO] [stderr]    Compiling tokio-udp v0.1.3
[INFO] [stderr]    Compiling tokio-tcp v0.1.3
[INFO] [stderr]    Compiling tokio-fs v0.1.6
[INFO] [stderr]    Compiling getset v0.0.7
[INFO] [stderr]    Compiling tokio v0.1.22
[INFO] [stderr]    Compiling uuid v0.7.4
[INFO] [stderr]    Compiling kitty_pool v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `crate::buffer::Buffer`
[INFO] [stderr]  --> src/pool/mod.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use crate::buffer::Buffer;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::range::Range`
[INFO] [stderr]  --> src/pool/mod.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use crate::range::Range;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Getters`, `MutGetters`
[INFO] [stderr]   --> src/pool/mod.rs:10:14
[INFO] [stderr]    |
[INFO] [stderr] 10 | use getset::{Getters, MutGetters};
[INFO] [stderr]    |              ^^^^^^^  ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::cell::RefCell`
[INFO] [stderr]   --> src/pool/mod.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use std::cell::RefCell;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::cmp::min`
[INFO] [stderr]   --> src/pool/mod.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 | use std::cmp::min;
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]   --> src/pool/mod.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 | use std::collections::HashMap;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::future::Future`
[INFO] [stderr]   --> src/pool/mod.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 | use std::future::Future;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::pin::Pin`
[INFO] [stderr]   --> src/pool/mod.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 | use std::pin::Pin;
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::rc::Rc`
[INFO] [stderr]   --> src/pool/mod.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 | use std::rc::Rc;
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::task::Context`
[INFO] [stderr]   --> src/pool/mod.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 | use std::task::Context;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::task::Poll`
[INFO] [stderr]   --> src/pool/mod.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 | use std::task::Poll;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `uuid::Uuid`
[INFO] [stderr]   --> src/pool/mod.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 | use uuid::Uuid;
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::cell::RefCell`
[INFO] [stderr]  --> src/pool/borrow.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::cell::RefCell;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::pin::Pin`
[INFO] [stderr]  --> src/pool/borrow.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::pin::Pin;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::rc::Rc`
[INFO] [stderr]  --> src/pool/borrow.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::rc::Rc;
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::task::Context`
[INFO] [stderr]  --> src/pool/borrow.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::task::Context;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::task::Poll`
[INFO] [stderr]  --> src/pool/borrow.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::task::Poll;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::task::Poll`
[INFO] [stderr]   --> src/pool/implementation.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 | use std::task::Poll;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::pool::borrow::BorrowFuture`
[INFO] [stderr]  --> src/pool/read.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use crate::pool::borrow::BorrowFuture;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::cell::RefCell`
[INFO] [stderr]  --> src/pool/read.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::cell::RefCell;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `SeekFrom`, `Seek`
[INFO] [stderr]  --> src/pool/read.rs:5:21
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::io::{Read, Seek, SeekFrom};
[INFO] [stderr]   |                     ^^^^  ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::pin::Pin`
[INFO] [stderr]  --> src/pool/read.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::pin::Pin;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::rc::Rc`
[INFO] [stderr]  --> src/pool/read.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::rc::Rc;
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::task::Context`
[INFO] [stderr]   --> src/pool/read.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use std::task::Context;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::task::Poll`
[INFO] [stderr]   --> src/pool/read.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use std::task::Poll;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::task::RawWaker`
[INFO] [stderr]   --> src/pool/read.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 | use std::task::RawWaker;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::task::Waker`
[INFO] [stderr]   --> src/pool/read.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 | use std::task::Waker;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `tokio::executor::DefaultExecutor`
[INFO] [stderr]   --> src/pool/read.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 | use tokio::executor::DefaultExecutor;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::pool::implementation::Ranges`
[INFO] [stderr]  --> src/pool/write.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use crate::pool::implementation::Ranges;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::cell::RefCell`
[INFO] [stderr]  --> src/pool/write.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::cell::RefCell;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `SeekFrom`, `Seek`
[INFO] [stderr]  --> src/pool/write.rs:5:15
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::io::{Seek, SeekFrom, Write};
[INFO] [stderr]   |               ^^^^  ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::pin::Pin`
[INFO] [stderr]  --> src/pool/write.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::pin::Pin;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::rc::Rc`
[INFO] [stderr]  --> src/pool/write.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::rc::Rc;
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::task::Context`
[INFO] [stderr]   --> src/pool/write.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use std::task::Context;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::task::Poll`
[INFO] [stderr]   --> src/pool/write.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use std::task::Poll;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Read`
[INFO] [stderr]  --> src/pool/read.rs:5:15
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::io::{Read, Seek, SeekFrom};
[INFO] [stderr]   |               ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Write`
[INFO] [stderr]  --> src/pool/write.rs:5:31
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::io::{Seek, SeekFrom, Write};
[INFO] [stderr]   |                               ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `borrow`
[INFO] [stderr]   --> src/pool/mod.rs:40:5
[INFO] [stderr]    |
[INFO] [stderr] 40 |     fn borrow(&mut self, requested_size: usize) -> BorrowFuture {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 43.59s
[INFO] running `"docker" "inspect" "b8c9e05eaa6ab3671a53b16b247b5609d3ae62148a472cdaf9f028df72c21b77"`
[INFO] running `"docker" "rm" "-f" "b8c9e05eaa6ab3671a53b16b247b5609d3ae62148a472cdaf9f028df72c21b77"`
[INFO] [stdout] b8c9e05eaa6ab3671a53b16b247b5609d3ae62148a472cdaf9f028df72c21b77
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/kitty_pool/0.1.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] b1f8fd6d9bb4488e5d7bf22afc06d948f5d6317a432bdb73bc457fc087d6187f
[INFO] running `"docker" "start" "-a" "b1f8fd6d9bb4488e5d7bf22afc06d948f5d6317a432bdb73bc457fc087d6187f"`
[INFO] [stderr] warning: `panic` setting is ignored for `test` profile
[INFO] [stderr] warning: `panic` setting is ignored for `bench` profile
[INFO] [stderr]    Compiling proc-macro2 v1.0.1
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling ryu v1.0.0
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling rayon-core v1.5.0
[INFO] [stderr]    Compiling syn v1.0.3
[INFO] [stderr]    Compiling unicode-width v0.1.6
[INFO] [stderr]    Compiling either v1.5.2
[INFO] [stderr]    Compiling itoa v0.4.4
[INFO] [stderr]    Compiling cast v0.2.2
[INFO] [stderr]    Compiling same-file v1.0.5
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling itertools v0.8.0
[INFO] [stderr]    Compiling atty v0.2.13
[INFO] [stderr]    Compiling regex-automata v0.1.8
[INFO] [stderr]    Compiling rand_xoshiro v0.1.0
[INFO] [stderr]    Compiling walkdir v2.2.9
[INFO] [stderr]    Compiling serde_json v1.0.40
[INFO] [stderr]    Compiling crossbeam-deque v0.6.3
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling criterion-plot v0.3.1
[INFO] [stderr]    Compiling bstr v0.2.7
[INFO] [stderr]    Compiling csv-core v0.1.6
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling rayon v1.1.0
[INFO] [stderr]    Compiling tinytemplate v1.0.2
[INFO] [stderr]    Compiling csv v1.1.1
[INFO] [stderr]    Compiling serde_derive v1.0.99
[INFO] [stderr]    Compiling criterion v0.2.11
[INFO] [stderr]    Compiling kitty_pool v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `crate::buffer::Buffer`
[INFO] [stderr]  --> src/pool/mod.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use crate::buffer::Buffer;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::range::Range`
[INFO] [stderr]  --> src/pool/mod.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use crate::range::Range;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Getters`, `MutGetters`
[INFO] [stderr]   --> src/pool/mod.rs:10:14
[INFO] [stderr]    |
[INFO] [stderr] 10 | use getset::{Getters, MutGetters};
[INFO] [stderr]    |              ^^^^^^^  ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::cell::RefCell`
[INFO] [stderr]   --> src/pool/mod.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use std::cell::RefCell;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::cmp::min`
[INFO] [stderr]   --> src/pool/mod.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 | use std::cmp::min;
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]   --> src/pool/mod.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 | use std::collections::HashMap;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::future::Future`
[INFO] [stderr]   --> src/pool/mod.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 | use std::future::Future;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::pin::Pin`
[INFO] [stderr]   --> src/pool/mod.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 | use std::pin::Pin;
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::rc::Rc`
[INFO] [stderr]   --> src/pool/mod.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 | use std::rc::Rc;
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::task::Context`
[INFO] [stderr]   --> src/pool/mod.rs:19:5
[INFO] [stderr]    |
[INFO] [stderr] 19 | use std::task::Context;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::task::Poll`
[INFO] [stderr]   --> src/pool/mod.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 | use std::task::Poll;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `uuid::Uuid`
[INFO] [stderr]   --> src/pool/mod.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 | use uuid::Uuid;
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::cell::RefCell`
[INFO] [stderr]  --> src/pool/borrow.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::cell::RefCell;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::pin::Pin`
[INFO] [stderr]  --> src/pool/borrow.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::pin::Pin;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::rc::Rc`
[INFO] [stderr]  --> src/pool/borrow.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::rc::Rc;
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::task::Context`
[INFO] [stderr]  --> src/pool/borrow.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::task::Context;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::task::Poll`
[INFO] [stderr]  --> src/pool/borrow.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::task::Poll;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::task::Poll`
[INFO] [stderr]   --> src/pool/implementation.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 | use std::task::Poll;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::pool::borrow::BorrowFuture`
[INFO] [stderr]  --> src/pool/read.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use crate::pool::borrow::BorrowFuture;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::cell::RefCell`
[INFO] [stderr]  --> src/pool/read.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::cell::RefCell;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `SeekFrom`, `Seek`
[INFO] [stderr]  --> src/pool/read.rs:5:21
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::io::{Read, Seek, SeekFrom};
[INFO] [stderr]   |                     ^^^^  ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::pin::Pin`
[INFO] [stderr]  --> src/pool/read.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::pin::Pin;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::rc::Rc`
[INFO] [stderr]  --> src/pool/read.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::rc::Rc;
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::task::Context`
[INFO] [stderr]   --> src/pool/read.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use std::task::Context;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::task::Poll`
[INFO] [stderr]   --> src/pool/read.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use std::task::Poll;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::task::RawWaker`
[INFO] [stderr]   --> src/pool/read.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 | use std::task::RawWaker;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::task::Waker`
[INFO] [stderr]   --> src/pool/read.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 | use std::task::Waker;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `tokio::executor::DefaultExecutor`
[INFO] [stderr]   --> src/pool/read.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 | use tokio::executor::DefaultExecutor;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::pool::implementation::Ranges`
[INFO] [stderr]  --> src/pool/write.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use crate::pool::implementation::Ranges;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::cell::RefCell`
[INFO] [stderr]  --> src/pool/write.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::cell::RefCell;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `SeekFrom`, `Seek`
[INFO] [stderr]  --> src/pool/write.rs:5:15
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::io::{Seek, SeekFrom, Write};
[INFO] [stderr]   |               ^^^^  ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::pin::Pin`
[INFO] [stderr]  --> src/pool/write.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::pin::Pin;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::rc::Rc`
[INFO] [stderr]  --> src/pool/write.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::rc::Rc;
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::task::Context`
[INFO] [stderr]   --> src/pool/write.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use std::task::Context;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::task::Poll`
[INFO] [stderr]   --> src/pool/write.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use std::task::Poll;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::*`
[INFO] [stderr]   --> src/pool/mod.rs:60:9
[INFO] [stderr]    |
[INFO] [stderr] 60 |     use super::*;
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/pool/implementation.rs:405:17
[INFO] [stderr]     |
[INFO] [stderr] 405 |                 Async::NotReady => {
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^ expected enum `std::result::Result`, found enum `tokio::prelude::Async`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected type `std::result::Result<tokio::prelude::Async<uuid::Uuid>, pool::error::Error>`
[INFO] [stderr]                found type `tokio::prelude::Async<_>`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Read`
[INFO] [stderr]  --> src/pool/read.rs:5:15
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::io::{Read, Seek, SeekFrom};
[INFO] [stderr]   |               ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Write`
[INFO] [stderr]  --> src/pool/write.rs:5:31
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::io::{Seek, SeekFrom, Write};
[INFO] [stderr]   |                               ^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0308`.
[INFO] [stderr] error: Could not compile `kitty_pool`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "b1f8fd6d9bb4488e5d7bf22afc06d948f5d6317a432bdb73bc457fc087d6187f"`
[INFO] running `"docker" "rm" "-f" "b1f8fd6d9bb4488e5d7bf22afc06d948f5d6317a432bdb73bc457fc087d6187f"`
[INFO] [stdout] b1f8fd6d9bb4488e5d7bf22afc06d948f5d6317a432bdb73bc457fc087d6187f