[INFO] fetching crate kronicler 0.1.3...
[INFO] checking kronicler-0.1.3 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate kronicler 0.1.3 into /workspace/builds/worker-3-tc2/source
[INFO] removed /workspace/builds/worker-3-tc2/source/.cargo/config.toml
[INFO] started tweaking crates.io crate kronicler 0.1.3
[INFO] finished tweaking crates.io crate kronicler 0.1.3
[INFO] tweaked toml for crates.io crate kronicler 0.1.3 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate kronicler 0.1.3 on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate kronicler 0.1.3 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d0be4c670457bff47829526ee1cf48d5b01a4d264000796376f87c9d6f7641d3
[INFO] running `Command { std: "docker" "start" "-a" "d0be4c670457bff47829526ee1cf48d5b01a4d264000796376f87c9d6f7641d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d0be4c670457bff47829526ee1cf48d5b01a4d264000796376f87c9d6f7641d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0be4c670457bff47829526ee1cf48d5b01a4d264000796376f87c9d6f7641d3", kill_on_drop: false }`
[INFO] [stdout] d0be4c670457bff47829526ee1cf48d5b01a4d264000796376f87c9d6f7641d3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Dunmustuse_in_always_ok" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7d30bfa0098a84a690898eb4e2d7171b2dd7bf3f4cb4df27732a61ece0583a03
[INFO] running `Command { std: "docker" "start" "-a" "7d30bfa0098a84a690898eb4e2d7171b2dd7bf3f4cb4df27732a61ece0583a03", kill_on_drop: false }`
[INFO] [stderr]    Compiling target-lexicon v0.13.2
[INFO] [stderr]     Checking regex-syntax v0.8.6
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]    Compiling memoffset v0.9.1
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking anstream v0.6.20
[INFO] [stderr]    Compiling serde_json v1.0.143
[INFO] [stderr]     Checking unindent v0.2.4
[INFO] [stderr]     Checking jiff v0.2.15
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]    Compiling pyo3-build-config v0.25.1
[INFO] [stderr]     Checking regex-automata v0.4.10
[INFO] [stderr]    Compiling pyo3-macros-backend v0.25.1
[INFO] [stderr]    Compiling pyo3-ffi v0.25.1
[INFO] [stderr]    Compiling pyo3 v0.25.1
[INFO] [stderr]     Checking regex v1.11.2
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]     Checking env_filter v0.1.3
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]     Checking env_logger v0.11.8
[INFO] [stderr]     Checking structopt v0.3.26
[INFO] [stderr]     Checking serde v1.0.219
[INFO] [stderr]    Compiling pyo3-macros v0.25.1
[INFO] [stderr]     Checking serde-big-array v0.5.1
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking kronicler v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<bool, Infallible>
[INFO] [stdout]    --> src/database.rs:228:24
[INFO] [stdout]     |
[INFO] [stdout] 228 |     pub fn exists() -> bool {
[INFO] [stdout]     |                        ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Database, Infallible>
[INFO] [stdout]    --> src/database.rs:234:46
[INFO] [stdout]     |
[INFO] [stdout] 234 |     pub fn new_reader(sync_consume: bool) -> Self {
[INFO] [stdout]     |                                              ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::option::Option<Row>, Infallible>
[INFO] [stdout]    --> src/database.rs:264:46
[INFO] [stdout]     |
[INFO] [stdout] 264 |     pub fn fetch(&mut self, index: usize) -> Option<Row> {
[INFO] [stdout]     |                                              ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Vec<Row>, Infallible>
[INFO] [stdout]    --> src/database.rs:290:36
[INFO] [stdout]     |
[INFO] [stdout] 290 |     pub fn fetch_all(&mut self) -> Vec<Row> {
[INFO] [stdout]     |                                    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Vec<pyo3::Bound<'_, PyList>>, Infallible>
[INFO] [stdout]    --> src/database.rs:309:66
[INFO] [stdout]     |
[INFO] [stdout] 309 |     pub fn fetch_all_as_list<'py>(&mut self, py: Python<'py>) -> Vec<Bound<'py, PyList>> {
[INFO] [stdout]     |                                                                  ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Vec<pyo3::Bound<'_, PyList>>, Infallible>
[INFO] [stdout]    --> src/database.rs:315:53
[INFO] [stdout]     |
[INFO] [stdout] 315 |     pub fn logs<'py>(&mut self, py: Python<'py>) -> Vec<Bound<'py, PyList>> {
[INFO] [stdout]     |                                                     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<HashSet<std::string::String>, Infallible>
[INFO] [stdout]    --> src/database.rs:319:45
[INFO] [stdout]     |
[INFO] [stdout] 319 |     pub fn get_function_names(&mut self) -> HashSet<String> {
[INFO] [stdout]     |                                             ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::option::Option<f64>, Infallible>
[INFO] [stdout]    --> src/database.rs:335:55
[INFO] [stdout]     |
[INFO] [stdout] 335 |     pub fn average(&mut self, function_name: &str) -> Option<f64> {
[INFO] [stdout]     |                                                       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary transmute
[INFO] [stdout]    --> src/page.rs:182:40
[INFO] [stdout]     |
[INFO] [stdout] 182 |                 let a: u128 = unsafe { std::mem::transmute(b) };
[INFO] [stdout]     |                                        -------------------^^^
[INFO] [stdout]     |                                        |
[INFO] [stdout]     |                                        help: replace this with: `u128::from_ne_bytes`
[INFO] [stdout]     |
[INFO] [stdout]     = help: there's also `from_le_bytes` and `from_be_bytes` if you expect a particular byte order
[INFO] [stdout]     = note: `#[warn(unnecessary_transmutes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<bool, Infallible>
[INFO] [stdout]   --> src/queue.rs:43:28
[INFO] [stdout]    |
[INFO] [stdout] 43 |     pub fn empty(&self) -> bool {
[INFO] [stdout]    |                            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<pyo3::Bound<'_, PyList>, Infallible>
[INFO] [stdout]    --> src/row.rs:128:52
[INFO] [stdout]     |
[INFO] [stdout] 128 |     pub fn to_list<'py>(&self, py: Python<'py>) -> Bound<'py, pyo3::types::PyList> {
[INFO] [stdout]     |                                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `kronicler` (lib) due to 10 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<bool, Infallible>
[INFO] [stdout]    --> src/database.rs:228:24
[INFO] [stdout]     |
[INFO] [stdout] 228 |     pub fn exists() -> bool {
[INFO] [stdout]     |                        ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<database::Database, Infallible>
[INFO] [stdout]    --> src/database.rs:234:46
[INFO] [stdout]     |
[INFO] [stdout] 234 |     pub fn new_reader(sync_consume: bool) -> Self {
[INFO] [stdout]     |                                              ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::option::Option<row::Row>, Infallible>
[INFO] [stdout]    --> src/database.rs:264:46
[INFO] [stdout]     |
[INFO] [stdout] 264 |     pub fn fetch(&mut self, index: usize) -> Option<Row> {
[INFO] [stdout]     |                                              ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Vec<row::Row>, Infallible>
[INFO] [stdout]    --> src/database.rs:290:36
[INFO] [stdout]     |
[INFO] [stdout] 290 |     pub fn fetch_all(&mut self) -> Vec<Row> {
[INFO] [stdout]     |                                    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Vec<pyo3::Bound<'_, PyList>>, Infallible>
[INFO] [stdout]    --> src/database.rs:309:66
[INFO] [stdout]     |
[INFO] [stdout] 309 |     pub fn fetch_all_as_list<'py>(&mut self, py: Python<'py>) -> Vec<Bound<'py, PyList>> {
[INFO] [stdout]     |                                                                  ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Vec<pyo3::Bound<'_, PyList>>, Infallible>
[INFO] [stdout]    --> src/database.rs:315:53
[INFO] [stdout]     |
[INFO] [stdout] 315 |     pub fn logs<'py>(&mut self, py: Python<'py>) -> Vec<Bound<'py, PyList>> {
[INFO] [stdout]     |                                                     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::collections::HashSet<std::string::String>, Infallible>
[INFO] [stdout]    --> src/database.rs:319:45
[INFO] [stdout]     |
[INFO] [stdout] 319 |     pub fn get_function_names(&mut self) -> HashSet<String> {
[INFO] [stdout]     |                                             ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::option::Option<f64>, Infallible>
[INFO] [stdout]    --> src/database.rs:335:55
[INFO] [stdout]     |
[INFO] [stdout] 335 |     pub fn average(&mut self, function_name: &str) -> Option<f64> {
[INFO] [stdout]     |                                                       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary transmute
[INFO] [stdout]    --> src/page.rs:182:40
[INFO] [stdout]     |
[INFO] [stdout] 182 |                 let a: u128 = unsafe { std::mem::transmute(b) };
[INFO] [stdout]     |                                        -------------------^^^
[INFO] [stdout]     |                                        |
[INFO] [stdout]     |                                        help: replace this with: `u128::from_ne_bytes`
[INFO] [stdout]     |
[INFO] [stdout]     = help: there's also `from_le_bytes` and `from_be_bytes` if you expect a particular byte order
[INFO] [stdout]     = note: `#[warn(unnecessary_transmutes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<bool, Infallible>
[INFO] [stdout]   --> src/queue.rs:43:28
[INFO] [stdout]    |
[INFO] [stdout] 43 |     pub fn empty(&self) -> bool {
[INFO] [stdout]    |                            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<pyo3::Bound<'_, PyList>, Infallible>
[INFO] [stdout]    --> src/row.rs:128:52
[INFO] [stdout]     |
[INFO] [stdout] 128 |     pub fn to_list<'py>(&self, py: Python<'py>) -> Bound<'py, pyo3::types::PyList> {
[INFO] [stdout]     |                                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `kronicler` (lib test) due to 10 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "7d30bfa0098a84a690898eb4e2d7171b2dd7bf3f4cb4df27732a61ece0583a03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d30bfa0098a84a690898eb4e2d7171b2dd7bf3f4cb4df27732a61ece0583a03", kill_on_drop: false }`
[INFO] [stdout] 7d30bfa0098a84a690898eb4e2d7171b2dd7bf3f4cb4df27732a61ece0583a03
