[INFO] cloning repository https://github.com/nannany/didactic-funicular
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nannany/didactic-funicular" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnannany%2Fdidactic-funicular", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnannany%2Fdidactic-funicular'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ce67117d5af91f730d3a972fe6b8754dc0e8ac1d
[INFO] testing nannany/didactic-funicular against 1.91.0 for beta-1.92-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnannany%2Fdidactic-funicular" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/nannany/didactic-funicular
[INFO] finished tweaking git repo https://github.com/nannany/didactic-funicular
[INFO] tweaked toml for git repo https://github.com/nannany/didactic-funicular written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/nannany/didactic-funicular on toolchain 1.91.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/nannany/didactic-funicular 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" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded synstructure v0.12.6
[INFO] [stderr]   Downloaded zerocopy v0.6.1
[INFO] [stderr]   Downloaded serde_derive v1.0.136
[INFO] [stderr]   Downloaded serde v1.0.136
[INFO] [stderr]   Downloaded sha-1 v0.9.8
[INFO] [stderr]   Downloaded zerocopy-derive v0.3.1
[INFO] [stderr]   Downloaded anyhow v1.0.55
[INFO] [stderr]   Downloaded sqlparser v0.15.0
[INFO] [stderr]   Downloaded libc v0.2.121
[INFO] [stderr]   Downloaded md-5 v0.9.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6fc1b9ba39a5383f9abcbce57b53279d753dd72caae8bc3de8242c752f4137d4
[INFO] running `Command { std: "docker" "start" "-a" "6fc1b9ba39a5383f9abcbce57b53279d753dd72caae8bc3de8242c752f4137d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6fc1b9ba39a5383f9abcbce57b53279d753dd72caae8bc3de8242c752f4137d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6fc1b9ba39a5383f9abcbce57b53279d753dd72caae8bc3de8242c752f4137d4", kill_on_drop: false }`
[INFO] [stdout] 6fc1b9ba39a5383f9abcbce57b53279d753dd72caae8bc3de8242c752f4137d4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c651b6d56cabdf0c8af04181d99c4f2b2d592592b13a9de931c4f51fcf0b795f
[INFO] running `Command { std: "docker" "start" "-a" "c651b6d56cabdf0c8af04181d99c4f2b2d592592b13a9de931c4f51fcf0b795f", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling anyhow v1.0.55
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling sqlparser v0.15.0
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling zerocopy-derive v0.3.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling zerocopy v0.6.1
[INFO] [stderr]    Compiling thiserror v1.0.30
[INFO] [stderr]    Compiling bincode v1.3.3
[INFO] [stderr]    Compiling didactic-funicular v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/btree/branch.rs:59:20
[INFO] [stdout]    |
[INFO] [stdout] 59 |     pub fn pair_at(&self, slot_id: usize) -> Pair {
[INFO] [stdout]    |                    ^^^^^                     ^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                    |
[INFO] [stdout]    |                    the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 59 |     pub fn pair_at(&self, slot_id: usize) -> Pair<'_> {
[INFO] [stdout]    |                                                  ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/btree/leaf.rs:54:20
[INFO] [stdout]    |
[INFO] [stdout] 54 |     pub fn pair_at(&self, slot_id: usize) -> Pair {
[INFO] [stdout]    |                    ^^^^^                     ^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                    |
[INFO] [stdout]    |                    the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 54 |     pub fn pair_at(&self, slot_id: usize) -> Pair<'_> {
[INFO] [stdout]    |                                                  ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/query.rs:37:14
[INFO] [stdout]    |
[INFO] [stdout] 37 |     fn start(&self, bufmgr: &mut BufferPoolManager) -> Result<BoxExecutor>;
[INFO] [stdout]    |              ^^^^^ the lifetime is elided here                ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 37 |     fn start(&self, bufmgr: &mut BufferPoolManager) -> Result<BoxExecutor<'_>>;
[INFO] [stdout]    |                                                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/query.rs:47:14
[INFO] [stdout]    |
[INFO] [stdout] 47 |     fn start(&self, bufmgr: &mut BufferPoolManager) -> Result<BoxExecutor> {
[INFO] [stdout]    |              ^^^^^ the lifetime is elided here                ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 47 |     fn start(&self, bufmgr: &mut BufferPoolManager) -> Result<BoxExecutor<'_>> {
[INFO] [stdout]    |                                                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/query.rs:85:14
[INFO] [stdout]    |
[INFO] [stdout] 85 |     fn start(&self, bufmgr: &mut BufferPoolManager) -> Result<BoxExecutor> {
[INFO] [stdout]    |              ^^^^^ the lifetime is elided here                ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 85 |     fn start(&self, bufmgr: &mut BufferPoolManager) -> Result<BoxExecutor<'_>> {
[INFO] [stdout]    |                                                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/query.rs:122:14
[INFO] [stdout]     |
[INFO] [stdout] 122 |     fn start(&self, bufmgr: &mut BufferPoolManager) -> Result<BoxExecutor> {
[INFO] [stdout]     |              ^^^^^ the lifetime is elided here                ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 122 |     fn start(&self, bufmgr: &mut BufferPoolManager) -> Result<BoxExecutor<'_>> {
[INFO] [stdout]     |                                                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/query.rs:169:14
[INFO] [stdout]     |
[INFO] [stdout] 169 |     fn start(&self, bufmgr: &mut BufferPoolManager) -> Result<BoxExecutor> {
[INFO] [stdout]     |              ^^^^^ the lifetime is elided here                ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 169 |     fn start(&self, bufmgr: &mut BufferPoolManager) -> Result<BoxExecutor<'_>> {
[INFO] [stdout]     |                                                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `PAGE_SIZE` is never used
[INFO] [stdout]  --> src/disk.rs:8:11
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub const PAGE_SIZE: usize = 4096;
[INFO] [stdout]   |           ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DiskManager` is never constructed
[INFO] [stdout]   --> src/disk.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct DiskManager {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `valid` and `to_u64` are never used
[INFO] [stdout]   --> src/disk.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 19 | impl PageId {
[INFO] [stdout]    | ----------- methods in this implementation
[INFO] [stdout] 20 |     pub const INVALID_PAGE_ID: PageId = PageId(u64::MAX);
[INFO] [stdout] 21 |     pub fn valid(self) -> Option<PageId> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 28 |     pub fn to_u64(self) -> u64 {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `open`, `allocate_page`, `read_page_data`, `write_page_data`, and `sync` are never used
[INFO] [stdout]   --> src/disk.rs:53:12
[INFO] [stdout]    |
[INFO] [stdout] 52 | impl DiskManager {
[INFO] [stdout]    | ---------------- associated items in this implementation
[INFO] [stdout] 53 |     pub fn new(heap_file: File) -> io::Result<Self> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 62 |     pub fn open(heap_file_path: impl AsRef<Path>) -> io::Result<Self> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 71 |     pub fn allocate_page(&mut self) -> PageId {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 78 |     pub fn read_page_data(&mut self, page_id: PageId, data: &mut [u8]) -> io::Result<()> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 87 |     pub fn write_page_data(&mut self, page_id: PageId, data: &mut [u8]) -> io::Result<()> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 96 |     pub fn sync(&mut self) -> io::Result<()> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Error` is never used
[INFO] [stdout]   --> src/buffer.rs:10:10
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub enum Error {
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BufferId` is never constructed
[INFO] [stdout]   --> src/buffer.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub struct BufferId(usize);
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Page` is never used
[INFO] [stdout]   --> src/buffer.rs:20:10
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub type Page = [u8; PAGE_SIZE];
[INFO] [stdout]    |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Buffer` is never constructed
[INFO] [stdout]   --> src/buffer.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub struct Buffer {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Frame` is never constructed
[INFO] [stdout]   --> src/buffer.rs:40:12
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub struct Frame {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BufferPool` is never constructed
[INFO] [stdout]   --> src/buffer.rs:45:12
[INFO] [stdout]    |
[INFO] [stdout] 45 | pub struct BufferPool {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `size`, `evict`, and `increment_id` are never used
[INFO] [stdout]   --> src/buffer.rs:51:12
[INFO] [stdout]    |
[INFO] [stdout] 50 | impl BufferPool {
[INFO] [stdout]    | --------------- associated items in this implementation
[INFO] [stdout] 51 |     pub fn new(pool_size: usize) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 61 |     fn size(&self) -> usize {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 65 |     fn evict(&mut self) -> Option<BufferId> {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 91 |     fn increment_id(&self, buffer_id: BufferId) -> BufferId {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BufferPoolManager` is never constructed
[INFO] [stdout]    --> src/buffer.rs:110:12
[INFO] [stdout]     |
[INFO] [stdout] 110 | pub struct BufferPoolManager {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `fetch_page`, `create_page`, and `flush` are never used
[INFO] [stdout]    --> src/buffer.rs:117:12
[INFO] [stdout]     |
[INFO] [stdout] 116 | impl BufferPoolManager {
[INFO] [stdout]     | ---------------------- associated items in this implementation
[INFO] [stdout] 117 |     pub fn new(disk: DiskManager, pool: BufferPool) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 122 |     pub fn fetch_page(&mut self, page_id: PageId) -> Result<Rc<Buffer>, Error> {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 149 |     pub fn create_page(&mut self) -> Result<Rc<Buffer>, Error> {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 172 |     pub fn flush(&mut self) -> Result<(), Error> {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.52s
[INFO] running `Command { std: "docker" "inspect" "c651b6d56cabdf0c8af04181d99c4f2b2d592592b13a9de931c4f51fcf0b795f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c651b6d56cabdf0c8af04181d99c4f2b2d592592b13a9de931c4f51fcf0b795f", kill_on_drop: false }`
[INFO] [stdout] c651b6d56cabdf0c8af04181d99c4f2b2d592592b13a9de931c4f51fcf0b795f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b8f4fa463caeb2d57133f1779ba6de96501c64fd730dce2cd606d2a5f6269711
[INFO] running `Command { std: "docker" "start" "-a" "b8f4fa463caeb2d57133f1779ba6de96501c64fd730dce2cd606d2a5f6269711", kill_on_drop: false }`
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling generic-array v0.14.5
[INFO] [stderr]    Compiling opaque-debug v0.3.0
[INFO] [stderr]    Compiling cpufeatures v0.2.2
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/btree/branch.rs:59:20
[INFO] [stdout]    |
[INFO] [stdout] 59 |     pub fn pair_at(&self, slot_id: usize) -> Pair {
[INFO] [stdout]    |                    ^^^^^                     ^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                    |
[INFO] [stdout]    |                    the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 59 |     pub fn pair_at(&self, slot_id: usize) -> Pair<'_> {
[INFO] [stdout]    |                                                  ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/btree/leaf.rs:54:20
[INFO] [stdout]    |
[INFO] [stdout] 54 |     pub fn pair_at(&self, slot_id: usize) -> Pair {
[INFO] [stdout]    |                    ^^^^^                     ^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                    |
[INFO] [stdout]    |                    the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 54 |     pub fn pair_at(&self, slot_id: usize) -> Pair<'_> {
[INFO] [stdout]    |                                                  ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/query.rs:37:14
[INFO] [stdout]    |
[INFO] [stdout] 37 |     fn start(&self, bufmgr: &mut BufferPoolManager) -> Result<BoxExecutor>;
[INFO] [stdout]    |              ^^^^^ the lifetime is elided here                ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 37 |     fn start(&self, bufmgr: &mut BufferPoolManager) -> Result<BoxExecutor<'_>>;
[INFO] [stdout]    |                                                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/query.rs:47:14
[INFO] [stdout]    |
[INFO] [stdout] 47 |     fn start(&self, bufmgr: &mut BufferPoolManager) -> Result<BoxExecutor> {
[INFO] [stdout]    |              ^^^^^ the lifetime is elided here                ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 47 |     fn start(&self, bufmgr: &mut BufferPoolManager) -> Result<BoxExecutor<'_>> {
[INFO] [stdout]    |                                                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/query.rs:85:14
[INFO] [stdout]    |
[INFO] [stdout] 85 |     fn start(&self, bufmgr: &mut BufferPoolManager) -> Result<BoxExecutor> {
[INFO] [stdout]    |              ^^^^^ the lifetime is elided here                ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 85 |     fn start(&self, bufmgr: &mut BufferPoolManager) -> Result<BoxExecutor<'_>> {
[INFO] [stdout]    |                                                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/query.rs:122:14
[INFO] [stdout]     |
[INFO] [stdout] 122 |     fn start(&self, bufmgr: &mut BufferPoolManager) -> Result<BoxExecutor> {
[INFO] [stdout]     |              ^^^^^ the lifetime is elided here                ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 122 |     fn start(&self, bufmgr: &mut BufferPoolManager) -> Result<BoxExecutor<'_>> {
[INFO] [stdout]     |                                                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/query.rs:169:14
[INFO] [stdout]     |
[INFO] [stdout] 169 |     fn start(&self, bufmgr: &mut BufferPoolManager) -> Result<BoxExecutor> {
[INFO] [stdout]     |              ^^^^^ the lifetime is elided here                ^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 169 |     fn start(&self, bufmgr: &mut BufferPoolManager) -> Result<BoxExecutor<'_>> {
[INFO] [stdout]     |                                                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling digest v0.9.0
[INFO] [stderr]    Compiling block-buffer v0.9.0
[INFO] [stderr]    Compiling md-5 v0.9.1
[INFO] [stderr]    Compiling sha-1 v0.9.8
[INFO] [stderr]    Compiling didactic-funicular v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `tempfile`
[INFO] [stdout]    --> src/btree.rs:286:9
[INFO] [stdout]     |
[INFO] [stdout] 286 |     use tempfile::tempfile;
[INFO] [stdout]     |         ^^^^^^^^ use of unresolved module or unlinked crate `tempfile`
[INFO] [stdout]     |
[INFO] [stdout]     = help: if you wanted to use a crate named `tempfile`, use `cargo add tempfile` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `PAGE_SIZE` is never used
[INFO] [stdout]  --> src/disk.rs:8:11
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub const PAGE_SIZE: usize = 4096;
[INFO] [stdout]   |           ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DiskManager` is never constructed
[INFO] [stdout]   --> src/disk.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct DiskManager {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `valid` and `to_u64` are never used
[INFO] [stdout]   --> src/disk.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 19 | impl PageId {
[INFO] [stdout]    | ----------- methods in this implementation
[INFO] [stdout] 20 |     pub const INVALID_PAGE_ID: PageId = PageId(u64::MAX);
[INFO] [stdout] 21 |     pub fn valid(self) -> Option<PageId> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 28 |     pub fn to_u64(self) -> u64 {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `open`, `allocate_page`, `read_page_data`, `write_page_data`, and `sync` are never used
[INFO] [stdout]   --> src/disk.rs:53:12
[INFO] [stdout]    |
[INFO] [stdout] 52 | impl DiskManager {
[INFO] [stdout]    | ---------------- associated items in this implementation
[INFO] [stdout] 53 |     pub fn new(heap_file: File) -> io::Result<Self> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 62 |     pub fn open(heap_file_path: impl AsRef<Path>) -> io::Result<Self> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 71 |     pub fn allocate_page(&mut self) -> PageId {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 78 |     pub fn read_page_data(&mut self, page_id: PageId, data: &mut [u8]) -> io::Result<()> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 87 |     pub fn write_page_data(&mut self, page_id: PageId, data: &mut [u8]) -> io::Result<()> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 96 |     pub fn sync(&mut self) -> io::Result<()> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Error` is never used
[INFO] [stdout]   --> src/buffer.rs:10:10
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub enum Error {
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BufferId` is never constructed
[INFO] [stdout]   --> src/buffer.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub struct BufferId(usize);
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Page` is never used
[INFO] [stdout]   --> src/buffer.rs:20:10
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub type Page = [u8; PAGE_SIZE];
[INFO] [stdout]    |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Buffer` is never constructed
[INFO] [stdout]   --> src/buffer.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub struct Buffer {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Frame` is never constructed
[INFO] [stdout]   --> src/buffer.rs:40:12
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub struct Frame {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BufferPool` is never constructed
[INFO] [stdout]   --> src/buffer.rs:45:12
[INFO] [stdout]    |
[INFO] [stdout] 45 | pub struct BufferPool {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `size`, `evict`, and `increment_id` are never used
[INFO] [stdout]   --> src/buffer.rs:51:12
[INFO] [stdout]    |
[INFO] [stdout] 50 | impl BufferPool {
[INFO] [stdout]    | --------------- associated items in this implementation
[INFO] [stdout] 51 |     pub fn new(pool_size: usize) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 61 |     fn size(&self) -> usize {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 65 |     fn evict(&mut self) -> Option<BufferId> {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 91 |     fn increment_id(&self, buffer_id: BufferId) -> BufferId {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BufferPoolManager` is never constructed
[INFO] [stdout]    --> src/buffer.rs:110:12
[INFO] [stdout]     |
[INFO] [stdout] 110 | pub struct BufferPoolManager {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `fetch_page`, `create_page`, and `flush` are never used
[INFO] [stdout]    --> src/buffer.rs:117:12
[INFO] [stdout]     |
[INFO] [stdout] 116 | impl BufferPoolManager {
[INFO] [stdout]     | ---------------------- associated items in this implementation
[INFO] [stdout] 117 |     pub fn new(disk: DiskManager, pool: BufferPool) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 122 |     pub fn fetch_page(&mut self, page_id: PageId) -> Result<Rc<Buffer>, Error> {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 149 |     pub fn create_page(&mut self) -> Result<Rc<Buffer>, Error> {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 172 |     pub fn flush(&mut self) -> Result<(), Error> {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `didactic-funicular` (lib test) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "b8f4fa463caeb2d57133f1779ba6de96501c64fd730dce2cd606d2a5f6269711", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8f4fa463caeb2d57133f1779ba6de96501c64fd730dce2cd606d2a5f6269711", kill_on_drop: false }`
[INFO] [stdout] b8f4fa463caeb2d57133f1779ba6de96501c64fd730dce2cd606d2a5f6269711
