[INFO] cloning repository https://github.com/uuhan/cloyster
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/uuhan/cloyster" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fuuhan%2Fcloyster", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fuuhan%2Fcloyster'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4d3cab5ba1dd4ceca79fd586a1851c9f6e0ba30a
[INFO] testing uuhan/cloyster against 1.69.0 for beta-1.70-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fuuhan%2Fcloyster" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/uuhan/cloyster on toolchain 1.69.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/uuhan/cloyster
[INFO] finished tweaking git repo https://github.com/uuhan/cloyster
[INFO] tweaked toml for git repo https://github.com/uuhan/cloyster written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/uuhan/cloyster already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded binary-heap-plus v0.4.1
[INFO] [stderr]   Downloaded abyss-promise v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4acaffd63d59ba3c05365488460aeb6b59073af87a109ff2a53499c1f7e6889a
[INFO] running `Command { std: "docker" "start" "-a" "4acaffd63d59ba3c05365488460aeb6b59073af87a109ff2a53499c1f7e6889a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4acaffd63d59ba3c05365488460aeb6b59073af87a109ff2a53499c1f7e6889a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4acaffd63d59ba3c05365488460aeb6b59073af87a109ff2a53499c1f7e6889a", kill_on_drop: false }`
[INFO] [stdout] 4acaffd63d59ba3c05365488460aeb6b59073af87a109ff2a53499c1f7e6889a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d756696c9f3892c1867f2cc0ca4305c63b8c91e4de40b4105d7367f158260cb2
[INFO] running `Command { std: "docker" "start" "-a" "d756696c9f3892c1867f2cc0ca4305c63b8c91e4de40b4105d7367f158260cb2", kill_on_drop: false }`
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling syn v1.0.84
[INFO] [stderr]    Compiling libc v0.2.112
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]    Compiling serde_derive v1.0.133
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling cc v1.0.72
[INFO] [stderr]    Compiling smallvec v1.7.0
[INFO] [stderr]    Compiling serde v1.0.133
[INFO] [stderr]    Compiling instant v0.1.12
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling lock_api v0.4.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling crc32fast v1.3.0
[INFO] [stderr]    Compiling rand_xoshiro v0.4.0
[INFO] [stderr]    Compiling arrayref v0.3.6
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling im v15.0.0
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling constant_time_eq v0.1.5
[INFO] [stderr]    Compiling arrayvec v0.7.2
[INFO] [stderr]    Compiling compare v0.1.0
[INFO] [stderr]    Compiling crossbeam-channel v0.5.1
[INFO] [stderr]    Compiling once_cell v1.9.0
[INFO] [stderr]    Compiling binary-heap-plus v0.4.1
[INFO] [stderr]    Compiling fxhash v0.2.1
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling quote v1.0.14
[INFO] [stderr]    Compiling blake3 v1.2.0
[INFO] [stderr]    Compiling fs2 v0.4.3
[INFO] [stderr]    Compiling parking_lot v0.11.2
[INFO] [stderr]    Compiling bitmaps v2.1.0
[INFO] [stderr]    Compiling abyss-promise v0.1.1
[INFO] [stderr]    Compiling digest v0.9.0
[INFO] [stderr]    Compiling sized-chunks v0.6.5
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling thiserror v1.0.30
[INFO] [stderr]    Compiling bincode v1.3.3
[INFO] [stderr]    Compiling cloyster v0.1.0-alpha.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated method `std::sync::atomic::AtomicU64::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]    --> src/pagecache/iobuf.rs:861:31
[INFO] [stdout]     |
[INFO] [stdout] 861 |         let res = self.header.compare_and_swap(old, new, SeqCst);
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `node`
[INFO] [stdout]   --> src/ds/dll.rs:70:13
[INFO] [stdout]    |
[INFO] [stdout] 70 |         let node = Node::new(item);
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_node`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/ds/dll.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 |     pub fn new(item: Item) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `remove` is never used
[INFO] [stdout]   --> src/ds/dll.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub fn remove(&mut self) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `push_head` is never used
[INFO] [stdout]   --> src/ds/dll.rs:57:12
[INFO] [stdout]    |
[INFO] [stdout] 57 |     pub fn push_head(&mut self, item: Item) -> *mut Node<Item> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `push_tail` is never used
[INFO] [stdout]   --> src/ds/dll.rs:68:12
[INFO] [stdout]    |
[INFO] [stdout] 68 |     pub fn push_tail(&mut self, item: Item) -> *mut Node<Item> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `len` is never used
[INFO] [stdout]   --> src/ds/dll.rs:75:12
[INFO] [stdout]    |
[INFO] [stdout] 75 |     pub fn len(&self) -> usize {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `CasResult` is never used
[INFO] [stdout]  --> src/ds/stack.rs:6:6
[INFO] [stdout]   |
[INFO] [stdout] 6 | type CasResult<'g, T> = Either<Shared<'g, Node<T>>, (Shared<'g, Node<T>>, Owned<Node<T>>)>;
[INFO] [stdout]   |      ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `head` is never used
[INFO] [stdout]   --> src/ds/stack.rs:68:12
[INFO] [stdout]    |
[INFO] [stdout] 68 |     pub fn head<'g>(&self, guard: &'g Guard) -> Shared<'g, Node<T>> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `push` is never used
[INFO] [stdout]   --> src/ds/stack.rs:72:12
[INFO] [stdout]    |
[INFO] [stdout] 72 |     pub fn push(&self, inner: T) {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `cas` is never used
[INFO] [stdout]    --> src/ds/stack.rs:105:12
[INFO] [stdout]     |
[INFO] [stdout] 105 |     pub fn cas<'g>(
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `cap` is never used
[INFO] [stdout]    --> src/ds/stack.rs:131:12
[INFO] [stdout]     |
[INFO] [stdout] 131 |     pub fn cap<'g>(
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `guard` is never read
[INFO] [stdout]   --> src/iter.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 7  | pub struct Iter {
[INFO] [stdout]    |            ---- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 13 |     guard: Guard,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/lock.rs:23:18
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub const fn new(inner: T) -> FastLock<T> {
[INFO] [stdout]    |                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `try_lock` is never used
[INFO] [stdout]   --> src/lock.rs:38:12
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub fn try_lock(&self) -> Option<FastLockGuard<'_, T>> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `pop` is never used
[INFO] [stdout]    --> src/pagecache/ds/stack.rs:111:8
[INFO] [stdout]     |
[INFO] [stdout] 111 |     fn pop(&self, guard: &Guard) -> Option<T> {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Vec::<T, A>::split_off` that must be used
[INFO] [stdout]    --> src/pagecache/config.rs:403:9
[INFO] [stdout]     |
[INFO] [stdout] 403 |         buf.split_off(len - 4);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: use `.truncate()` if you don't need the other half
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Vec::<T, A>::split_off` that must be used
[INFO] [stdout]    --> src/pagecache/snapshot.rs:200:5
[INFO] [stdout]     |
[INFO] [stdout] 200 |     buf.split_off(len - 12);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: use `.truncate()` if you don't need the other half
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 18 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.39s
[INFO] running `Command { std: "docker" "inspect" "d756696c9f3892c1867f2cc0ca4305c63b8c91e4de40b4105d7367f158260cb2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d756696c9f3892c1867f2cc0ca4305c63b8c91e4de40b4105d7367f158260cb2", kill_on_drop: false }`
[INFO] [stdout] d756696c9f3892c1867f2cc0ca4305c63b8c91e4de40b4105d7367f158260cb2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 467cd94a054b52d950dd9bd44892ccc328bce7ac597e3f0aa56ba34feb2b68c4
[INFO] running `Command { std: "docker" "start" "-a" "467cd94a054b52d950dd9bd44892ccc328bce7ac597e3f0aa56ba34feb2b68c4", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling humantime v2.1.0
[INFO] [stdout] warning: use of deprecated method `std::sync::atomic::AtomicU64::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]    --> src/pagecache/iobuf.rs:861:31
[INFO] [stdout]     |
[INFO] [stdout] 861 |         let res = self.header.compare_and_swap(old, new, SeqCst);
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `node`
[INFO] [stdout]   --> src/ds/dll.rs:70:13
[INFO] [stdout]    |
[INFO] [stdout] 70 |         let node = Node::new(item);
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_node`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/ds/dll.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 |     pub fn new(item: Item) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `remove` is never used
[INFO] [stdout]   --> src/ds/dll.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub fn remove(&mut self) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `push_head` is never used
[INFO] [stdout]   --> src/ds/dll.rs:57:12
[INFO] [stdout]    |
[INFO] [stdout] 57 |     pub fn push_head(&mut self, item: Item) -> *mut Node<Item> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `push_tail` is never used
[INFO] [stdout]   --> src/ds/dll.rs:68:12
[INFO] [stdout]    |
[INFO] [stdout] 68 |     pub fn push_tail(&mut self, item: Item) -> *mut Node<Item> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `len` is never used
[INFO] [stdout]   --> src/ds/dll.rs:75:12
[INFO] [stdout]    |
[INFO] [stdout] 75 |     pub fn len(&self) -> usize {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `CasResult` is never used
[INFO] [stdout]  --> src/ds/stack.rs:6:6
[INFO] [stdout]   |
[INFO] [stdout] 6 | type CasResult<'g, T> = Either<Shared<'g, Node<T>>, (Shared<'g, Node<T>>, Owned<Node<T>>)>;
[INFO] [stdout]   |      ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `head` is never used
[INFO] [stdout]   --> src/ds/stack.rs:68:12
[INFO] [stdout]    |
[INFO] [stdout] 68 |     pub fn head<'g>(&self, guard: &'g Guard) -> Shared<'g, Node<T>> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `push` is never used
[INFO] [stdout]   --> src/ds/stack.rs:72:12
[INFO] [stdout]    |
[INFO] [stdout] 72 |     pub fn push(&self, inner: T) {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `cas` is never used
[INFO] [stdout]    --> src/ds/stack.rs:105:12
[INFO] [stdout]     |
[INFO] [stdout] 105 |     pub fn cas<'g>(
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `cap` is never used
[INFO] [stdout]    --> src/ds/stack.rs:131:12
[INFO] [stdout]     |
[INFO] [stdout] 131 |     pub fn cap<'g>(
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `guard` is never read
[INFO] [stdout]   --> src/iter.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 7  | pub struct Iter {
[INFO] [stdout]    |            ---- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 13 |     guard: Guard,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/lock.rs:23:18
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub const fn new(inner: T) -> FastLock<T> {
[INFO] [stdout]    |                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `try_lock` is never used
[INFO] [stdout]   --> src/lock.rs:38:12
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub fn try_lock(&self) -> Option<FastLockGuard<'_, T>> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `pop` is never used
[INFO] [stdout]    --> src/pagecache/ds/stack.rs:111:8
[INFO] [stdout]     |
[INFO] [stdout] 111 |     fn pop(&self, guard: &Guard) -> Option<T> {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Vec::<T, A>::split_off` that must be used
[INFO] [stdout]    --> src/pagecache/config.rs:403:9
[INFO] [stdout]     |
[INFO] [stdout] 403 |         buf.split_off(len - 4);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: use `.truncate()` if you don't need the other half
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Vec::<T, A>::split_off` that must be used
[INFO] [stdout]    --> src/pagecache/snapshot.rs:200:5
[INFO] [stdout]     |
[INFO] [stdout] 200 |     buf.split_off(len - 12);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: use `.truncate()` if you don't need the other half
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 18 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling env_logger v0.9.0
[INFO] [stderr]    Compiling cloyster v0.1.0-alpha.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Config`
[INFO] [stdout]  --> examples/demo.rs:1:38
[INFO] [stdout]   |
[INFO] [stdout] 1 | use cloyster::pagecache::{self, pin, Config, Materializer};
[INFO] [stdout]   |                                      ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `key` is never read
[INFO] [stdout]   --> examples/demo.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 38 |         key = pc
[INFO] [stdout]    |         ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]   --> examples/demo.rs:49:18
[INFO] [stdout]    |
[INFO] [stdout] 49 |         let (mut key, page, size_on_disk) = pc.get(id, &guard).unwrap().unwrap();
[INFO] [stdout]    |                  ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `size_on_disk`
[INFO] [stdout]   --> examples/demo.rs:49:29
[INFO] [stdout]    |
[INFO] [stdout] 49 |         let (mut key, page, size_on_disk) = pc.get(id, &guard).unwrap().unwrap();
[INFO] [stdout]    |                             ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_size_on_disk`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/demo.rs:49:14
[INFO] [stdout]    |
[INFO] [stdout] 49 |         let (mut key, page, size_on_disk) = pc.get(id, &guard).unwrap().unwrap();
[INFO] [stdout]    |              ----^^^
[INFO] [stdout]    |              |
[INFO] [stdout]    |              help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::sync::atomic::AtomicU64::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]    --> src/pagecache/iobuf.rs:861:31
[INFO] [stdout]     |
[INFO] [stdout] 861 |         let res = self.header.compare_and_swap(old, new, SeqCst);
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `node`
[INFO] [stdout]   --> src/ds/dll.rs:70:13
[INFO] [stdout]    |
[INFO] [stdout] 70 |         let node = Node::new(item);
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_node`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/ds/dll.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 |     pub fn new(item: Item) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `remove` is never used
[INFO] [stdout]   --> src/ds/dll.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub fn remove(&mut self) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `push_head` is never used
[INFO] [stdout]   --> src/ds/dll.rs:57:12
[INFO] [stdout]    |
[INFO] [stdout] 57 |     pub fn push_head(&mut self, item: Item) -> *mut Node<Item> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `push_tail` is never used
[INFO] [stdout]   --> src/ds/dll.rs:68:12
[INFO] [stdout]    |
[INFO] [stdout] 68 |     pub fn push_tail(&mut self, item: Item) -> *mut Node<Item> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `len` is never used
[INFO] [stdout]   --> src/ds/dll.rs:75:12
[INFO] [stdout]    |
[INFO] [stdout] 75 |     pub fn len(&self) -> usize {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `CasResult` is never used
[INFO] [stdout]  --> src/ds/stack.rs:6:6
[INFO] [stdout]   |
[INFO] [stdout] 6 | type CasResult<'g, T> = Either<Shared<'g, Node<T>>, (Shared<'g, Node<T>>, Owned<Node<T>>)>;
[INFO] [stdout]   |      ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `head` is never used
[INFO] [stdout]   --> src/ds/stack.rs:68:12
[INFO] [stdout]    |
[INFO] [stdout] 68 |     pub fn head<'g>(&self, guard: &'g Guard) -> Shared<'g, Node<T>> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `push` is never used
[INFO] [stdout]   --> src/ds/stack.rs:72:12
[INFO] [stdout]    |
[INFO] [stdout] 72 |     pub fn push(&self, inner: T) {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `cas` is never used
[INFO] [stdout]    --> src/ds/stack.rs:105:12
[INFO] [stdout]     |
[INFO] [stdout] 105 |     pub fn cas<'g>(
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `cap` is never used
[INFO] [stdout]    --> src/ds/stack.rs:131:12
[INFO] [stdout]     |
[INFO] [stdout] 131 |     pub fn cap<'g>(
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `guard` is never read
[INFO] [stdout]   --> src/iter.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 7  | pub struct Iter {
[INFO] [stdout]    |            ---- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 13 |     guard: Guard,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/lock.rs:23:18
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub const fn new(inner: T) -> FastLock<T> {
[INFO] [stdout]    |                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `try_lock` is never used
[INFO] [stdout]   --> src/lock.rs:38:12
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub fn try_lock(&self) -> Option<FastLockGuard<'_, T>> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Vec::<T, A>::split_off` that must be used
[INFO] [stdout]    --> src/pagecache/config.rs:403:9
[INFO] [stdout]     |
[INFO] [stdout] 403 |         buf.split_off(len - 4);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: use `.truncate()` if you don't need the other half
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `Vec::<T, A>::split_off` that must be used
[INFO] [stdout]    --> src/pagecache/snapshot.rs:200:5
[INFO] [stdout]     |
[INFO] [stdout] 200 |     buf.split_off(len - 12);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: use `.truncate()` if you don't need the other half
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 17 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 6.12s
[INFO] running `Command { std: "docker" "inspect" "467cd94a054b52d950dd9bd44892ccc328bce7ac597e3f0aa56ba34feb2b68c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "467cd94a054b52d950dd9bd44892ccc328bce7ac597e3f0aa56ba34feb2b68c4", kill_on_drop: false }`
[INFO] [stdout] 467cd94a054b52d950dd9bd44892ccc328bce7ac597e3f0aa56ba34feb2b68c4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6676f5c7fc97118414cdac54003abe81a2b5d0cb7dd1884dbaf534c76982c65d
[INFO] running `Command { std: "docker" "start" "-a" "6676f5c7fc97118414cdac54003abe81a2b5d0cb7dd1884dbaf534c76982c65d", kill_on_drop: false }`
[INFO] [stderr] warning: use of deprecated method `std::sync::atomic::AtomicU64::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stderr]    --> src/pagecache/iobuf.rs:861:31
[INFO] [stderr]     |
[INFO] [stderr] 861 |         let res = self.header.compare_and_swap(old, new, SeqCst);
[INFO] [stderr]     |                               ^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `node`
[INFO] [stderr]   --> src/ds/dll.rs:70:13
[INFO] [stderr]    |
[INFO] [stderr] 70 |         let node = Node::new(item);
[INFO] [stderr]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_node`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]   --> src/ds/dll.rs:11:12
[INFO] [stderr]    |
[INFO] [stderr] 11 |     pub fn new(item: Item) -> Self {
[INFO] [stderr]    |            ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method `remove` is never used
[INFO] [stderr]   --> src/ds/dll.rs:19:12
[INFO] [stderr]    |
[INFO] [stderr] 19 |     pub fn remove(&mut self) {
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `push_head` is never used
[INFO] [stderr]   --> src/ds/dll.rs:57:12
[INFO] [stderr]    |
[INFO] [stderr] 57 |     pub fn push_head(&mut self, item: Item) -> *mut Node<Item> {
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `push_tail` is never used
[INFO] [stderr]   --> src/ds/dll.rs:68:12
[INFO] [stderr]    |
[INFO] [stderr] 68 |     pub fn push_tail(&mut self, item: Item) -> *mut Node<Item> {
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `len` is never used
[INFO] [stderr]   --> src/ds/dll.rs:75:12
[INFO] [stderr]    |
[INFO] [stderr] 75 |     pub fn len(&self) -> usize {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: type alias `CasResult` is never used
[INFO] [stderr]  --> src/ds/stack.rs:6:6
[INFO] [stderr]   |
[INFO] [stderr] 6 | type CasResult<'g, T> = Either<Shared<'g, Node<T>>, (Shared<'g, Node<T>>, Owned<Node<T>>)>;
[INFO] [stderr]   |      ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `head` is never used
[INFO] [stderr]   --> src/ds/stack.rs:68:12
[INFO] [stderr]    |
[INFO] [stderr] 68 |     pub fn head<'g>(&self, guard: &'g Guard) -> Shared<'g, Node<T>> {
[INFO] [stderr]    |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `push` is never used
[INFO] [stderr]   --> src/ds/stack.rs:72:12
[INFO] [stderr]    |
[INFO] [stderr] 72 |     pub fn push(&self, inner: T) {
[INFO] [stderr]    |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `cas` is never used
[INFO] [stderr]    --> src/ds/stack.rs:105:12
[INFO] [stderr]     |
[INFO] [stderr] 105 |     pub fn cas<'g>(
[INFO] [stderr]     |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `cap` is never used
[INFO] [stderr]    --> src/ds/stack.rs:131:12
[INFO] [stderr]     |
[INFO] [stderr] 131 |     pub fn cap<'g>(
[INFO] [stderr]     |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `guard` is never read
[INFO] [stderr]   --> src/iter.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 7  | pub struct Iter {
[INFO] [stderr]    |            ---- field in this struct
[INFO] [stderr] ...
[INFO] [stderr] 13 |     guard: Guard,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]   --> src/lock.rs:23:18
[INFO] [stderr]    |
[INFO] [stderr] 23 |     pub const fn new(inner: T) -> FastLock<T> {
[INFO] [stderr]    |                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `try_lock` is never used
[INFO] [stderr]   --> src/lock.rs:38:12
[INFO] [stderr]    |
[INFO] [stderr] 38 |     pub fn try_lock(&self) -> Option<FastLockGuard<'_, T>> {
[INFO] [stderr]    |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method `pop` is never used
[INFO] [stderr]    --> src/pagecache/ds/stack.rs:111:8
[INFO] [stderr]     |
[INFO] [stderr] 111 |     fn pop(&self, guard: &Guard) -> Option<T> {
[INFO] [stderr]     |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `Vec::<T, A>::split_off` that must be used
[INFO] [stderr]    --> src/pagecache/config.rs:403:9
[INFO] [stderr]     |
[INFO] [stderr] 403 |         buf.split_off(len - 4);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: use `.truncate()` if you don't need the other half
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `Vec::<T, A>::split_off` that must be used
[INFO] [stderr]    --> src/pagecache/snapshot.rs:200:5
[INFO] [stderr]     |
[INFO] [stderr] 200 |     buf.split_off(len - 12);
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: use `.truncate()` if you don't need the other half
[INFO] [stderr] 
[INFO] [stderr] warning: `cloyster` (lib) generated 18 warnings (run `cargo fix --lib -p cloyster` to apply 1 suggestion)
[INFO] [stderr] warning: `cloyster` (lib test) generated 17 warnings (17 duplicates)
[INFO] [stderr] warning: unused import: `Config`
[INFO] [stderr]  --> examples/demo.rs:1:38
[INFO] [stderr]   |
[INFO] [stderr] 1 | use cloyster::pagecache::{self, pin, Config, Materializer};
[INFO] [stderr]   |                                      ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `key` is never read
[INFO] [stderr]   --> examples/demo.rs:38:9
[INFO] [stderr]    |
[INFO] [stderr] 38 |         key = pc
[INFO] [stderr]    |         ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `key`
[INFO] [stderr]   --> examples/demo.rs:49:18
[INFO] [stderr]    |
[INFO] [stderr] 49 |         let (mut key, page, size_on_disk) = pc.get(id, &guard).unwrap().unwrap();
[INFO] [stderr]    |                  ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `size_on_disk`
[INFO] [stderr]   --> examples/demo.rs:49:29
[INFO] [stderr]    |
[INFO] [stderr] 49 |         let (mut key, page, size_on_disk) = pc.get(id, &guard).unwrap().unwrap();
[INFO] [stderr]    |                             ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_size_on_disk`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> examples/demo.rs:49:14
[INFO] [stderr]    |
[INFO] [stderr] 49 |         let (mut key, page, size_on_disk) = pc.get(id, &guard).unwrap().unwrap();
[INFO] [stderr]    |              ----^^^
[INFO] [stderr]    |              |
[INFO] [stderr]    |              help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `cloyster` (example "demo") generated 5 warnings (run `cargo fix --example "demo"` to apply 4 suggestions)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/cloyster-231576f9059a171e)
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test pagecache::ds::dll::test_dll ... ok
[INFO] [stdout] test pagecache::ds::pagetable::test_split_fanout ... ok
[INFO] [stdout] test pagecache::ds::pagetable::basic_functionality ... ok
[INFO] [stdout] test pagecache::ds::stack::tests::basic_functionality ... ok
[INFO] [stdout] test tree::tests::test_block_persistence ... FAILED
[INFO] [stdout] test tree::tests::test_block_scan_prefix ... ok
[INFO] [stdout] test tree::tests::test_block_insert_get ... ok
[INFO] [stdout] test tree::tests::test_block_range ... ok
[INFO] [stdout] test tree::tests::test_open_block ... ok
[INFO] [stdout] test tree::tests::test_block_iter_count ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- tree::tests::test_block_persistence stdout ----
[INFO] [stdout] thread 'tree::tests::test_block_persistence' panicked at 'open file at "./cloyster.db/db": IO error: Read-only file system (os error 30)', src/pagecache/config.rs:155:13
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x559924dbe28a - std::backtrace_rs::backtrace::libunwind::trace::ha9053a9a07ca49cb
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5
[INFO] [stdout]    1:     0x559924dbe28a - std::backtrace_rs::backtrace::trace_unsynchronized::h9c2852a457ad564e
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x559924dbe28a - std::sys_common::backtrace::_print_fmt::h457936fbfaa0070f
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/sys_common/backtrace.rs:65:5
[INFO] [stdout]    3:     0x559924dbe28a - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h5779d7bf7f70cb0c
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/sys_common/backtrace.rs:44:22
[INFO] [stdout]    4:     0x559924de35ee - core::fmt::write::h5a4baaff1bcd3eb5
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/core/src/fmt/mod.rs:1232:17
[INFO] [stdout]    5:     0x559924dbaf15 - std::io::Write::write_fmt::h478f79c628ef31d1
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/io/mod.rs:1684:15
[INFO] [stdout]    6:     0x559924dbe055 - std::sys_common::backtrace::_print::h5fcdc36060f177e8
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stdout]    7:     0x559924dbe055 - std::sys_common::backtrace::print::h54ca9458b876c8bf
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stdout]    8:     0x559924dbfe1f - std::panicking::default_hook::{{closure}}::hbe471161c7664ed6
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/panicking.rs:271:22
[INFO] [stdout]    9:     0x559924dbfadf - std::panicking::default_hook::ha3500da57aa4ac4f
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/panicking.rs:287:9
[INFO] [stdout]   10:     0x559924d0d437 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::hdf1b89dd137ece34
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/alloc/src/boxed.rs:2001:9
[INFO] [stdout]   11:     0x559924d0d437 - test::test_main::{{closure}}::h9081a79f20e75698
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/test/src/lib.rs:135:21
[INFO] [stdout]   12:     0x559924dc054d - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h6507bddc3eebb4a5
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/alloc/src/boxed.rs:2001:9
[INFO] [stdout]   13:     0x559924dc054d - std::panicking::rust_panic_with_hook::h50c09d000dc561d2
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/panicking.rs:696:13
[INFO] [stdout]   14:     0x559924dc02c9 - std::panicking::begin_panic_handler::{{closure}}::h9e2b2176e00e0d9c
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/panicking.rs:583:13
[INFO] [stdout]   15:     0x559924dbe6f6 - std::sys_common::backtrace::__rust_end_short_backtrace::h5739b8e512c09d02
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/sys_common/backtrace.rs:150:18
[INFO] [stdout]   16:     0x559924dbffd2 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/panicking.rs:579:5
[INFO] [stdout]   17:     0x559924b957b3 - core::panicking::panic_fmt::hf33a1475b4dc5c3e
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/core/src/panicking.rs:64:14
[INFO] [stdout]   18:     0x559924bfc944 - cloyster::pagecache::config::ConfigBuilder::build::{{closure}}::ha8e0d67d8f1751d2
[INFO] [stdout]                                at /opt/rustwide/workdir/src/pagecache/config.rs:155:13
[INFO] [stdout]   19:     0x559924bef873 - core::result::Result<T,E>::unwrap_or_else::h2564c8c0622dda02
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/core/src/result.rs:1465:23
[INFO] [stdout]   20:     0x559924bfc6cd - cloyster::pagecache::config::ConfigBuilder::build::h991e0afb6c9af709
[INFO] [stdout]                                at /opt/rustwide/workdir/src/pagecache/config.rs:154:20
[INFO] [stdout]   21:     0x559924c7e276 - cloyster::context::Context::new::hf618744884fc064b
[INFO] [stdout]                                at /opt/rustwide/workdir/src/context.rs:27:13
[INFO] [stdout]   22:     0x559924c3f615 - cloyster::database::Database::open::h572a0a1c099e5d2f
[INFO] [stdout]                                at /opt/rustwide/workdir/src/database.rs:25:23
[INFO] [stdout]   23:     0x559924cd204e - cloyster::tree::tests::test_block_persistence::h9ec01584dee66b70
[INFO] [stdout]                                at /opt/rustwide/workdir/src/tree.rs:277:18
[INFO] [stdout]   24:     0x559924cd1fe7 - cloyster::tree::tests::test_block_persistence::{{closure}}::had1268bbe5eb1fa2
[INFO] [stdout]                                at /opt/rustwide/workdir/src/tree.rs:276:33
[INFO] [stdout]   25:     0x559924cabd05 - core::ops::function::FnOnce::call_once::h2f60832ca0dc9690
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   26:     0x559924d1281f - core::ops::function::FnOnce::call_once::h7d969581be7d0075
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   27:     0x559924d1281f - test::__rust_begin_short_backtrace::hca25a52684e56655
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/test/src/lib.rs:656:18
[INFO] [stdout]   28:     0x559924ce3e3c - test::run_test::{{closure}}::ha8ac744c4af1a4bb
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/test/src/lib.rs:647:30
[INFO] [stdout]   29:     0x559924ce3e3c - core::ops::function::FnOnce::call_once{{vtable.shim}}::h7b411a9ed45bdecf
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   30:     0x559924d117e6 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hd05328869a8ed200
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/alloc/src/boxed.rs:1987:9
[INFO] [stdout]   31:     0x559924d117e6 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h0c601ce20bd5b2be
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/core/src/panic/unwind_safe.rs:271:9
[INFO] [stdout]   32:     0x559924d117e6 - std::panicking::try::do_call::ha4be5c164fe30854
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/panicking.rs:487:40
[INFO] [stdout]   33:     0x559924d117e6 - std::panicking::try::h604546f3609af05f
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/panicking.rs:451:19
[INFO] [stdout]   34:     0x559924d117e6 - std::panic::catch_unwind::h5bfa8afe44c9c2f9
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/panic.rs:140:14
[INFO] [stdout]   35:     0x559924d117e6 - test::run_test_in_process::hd50dee55dd63e6aa
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/test/src/lib.rs:679:27
[INFO] [stdout]   36:     0x559924d117e6 - test::run_test::run_test_inner::{{closure}}::h4aa0f433aa85cea8
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/test/src/lib.rs:573:39
[INFO] [stdout]   37:     0x559924cde4b1 - test::run_test::run_test_inner::{{closure}}::had56431adf24b4d6
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/test/src/lib.rs:600:37
[INFO] [stdout]   38:     0x559924cde4b1 - std::sys_common::backtrace::__rust_begin_short_backtrace::ha8d9890e0c73bf13
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/sys_common/backtrace.rs:134:18
[INFO] [stdout]   39:     0x559924ce3ecb - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h251832bcb4a95327
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/thread/mod.rs:560:17
[INFO] [stdout]   40:     0x559924ce3ecb - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h8fdff598fa414831
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/core/src/panic/unwind_safe.rs:271:9
[INFO] [stdout]   41:     0x559924ce3ecb - std::panicking::try::do_call::h455dd2f7764a950f
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/panicking.rs:487:40
[INFO] [stdout]   42:     0x559924ce3ecb - std::panicking::try::had6f23b7b73ae72a
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/panicking.rs:451:19
[INFO] [stdout]   43:     0x559924ce3ecb - std::panic::catch_unwind::ha6a5ca3915b4dad0
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/panic.rs:140:14
[INFO] [stdout]   44:     0x559924ce3ecb - std::thread::Builder::spawn_unchecked_::{{closure}}::h883b72ef75da6231
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/thread/mod.rs:559:30
[INFO] [stdout]   45:     0x559924ce3ecb - core::ops::function::FnOnce::call_once{{vtable.shim}}::hb7dff73dc8bd2ccb
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   46:     0x559924dc58c3 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h39990b24eedef2ab
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/alloc/src/boxed.rs:1987:9
[INFO] [stdout]   47:     0x559924dc58c3 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h01a027258444143b
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/alloc/src/boxed.rs:1987:9
[INFO] [stdout]   48:     0x559924dc58c3 - std::sys::unix::thread::Thread::new::thread_start::ha4f1cdd9c25884ba
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/sys/unix/thread.rs:108:17
[INFO] [stdout]   49:     0x7f5fc6f72b43 - <unknown>
[INFO] [stdout]   50:     0x7f5fc7003bb4 - __clone
[INFO] [stdout]   51:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     tree::tests::test_block_persistence
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 9 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.10s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] running `Command { std: "docker" "inspect" "6676f5c7fc97118414cdac54003abe81a2b5d0cb7dd1884dbaf534c76982c65d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6676f5c7fc97118414cdac54003abe81a2b5d0cb7dd1884dbaf534c76982c65d", kill_on_drop: false }`
[INFO] [stdout] 6676f5c7fc97118414cdac54003abe81a2b5d0cb7dd1884dbaf534c76982c65d
