[INFO] cloning repository https://github.com/Shubhamai/bloom
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Shubhamai/bloom" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FShubhamai%2Fbloom", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FShubhamai%2Fbloom'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0bb34c258079743c477c202ea33ed0f05613a26d
[INFO] checking Shubhamai/bloom against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FShubhamai%2Fbloom" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Shubhamai/bloom
[INFO] finished tweaking git repo https://github.com/Shubhamai/bloom
[INFO] tweaked toml for git repo https://github.com/Shubhamai/bloom written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Shubhamai/bloom 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 git repo https://github.com/Shubhamai/bloom 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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 38297d7f231056f6b4479b9717bc4bb891ddaed57e84f86271523d93d62a2911
[INFO] running `Command { std: "docker" "start" "-a" "38297d7f231056f6b4479b9717bc4bb891ddaed57e84f86271523d93d62a2911", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "38297d7f231056f6b4479b9717bc4bb891ddaed57e84f86271523d93d62a2911", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38297d7f231056f6b4479b9717bc4bb891ddaed57e84f86271523d93d62a2911", kill_on_drop: false }`
[INFO] [stdout] 38297d7f231056f6b4479b9717bc4bb891ddaed57e84f86271523d93d62a2911
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 51d225778fcb2ba7b4cb557709c7dd210d853b1945eedb7c8c59c82603b9aead
[INFO] running `Command { std: "docker" "start" "-a" "51d225778fcb2ba7b4cb557709c7dd210d853b1945eedb7c8c59c82603b9aead", kill_on_drop: false }`
[INFO] [stderr]    Compiling target-lexicon v0.12.16
[INFO] [stderr]    Compiling libc v0.2.156
[INFO] [stderr]     Checking unindent v0.2.3
[INFO] [stderr]    Compiling memoffset v0.9.1
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking zerocopy v0.7.35
[INFO] [stderr]    Compiling pyo3-build-config v0.22.2
[INFO] [stderr]     Checking ppv-lite86 v0.2.20
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling pyo3-ffi v0.22.2
[INFO] [stderr]    Compiling pyo3-macros-backend v0.22.2
[INFO] [stderr]    Compiling pyo3 v0.22.2
[INFO] [stderr]    Compiling pyo3-macros v0.22.2
[INFO] [stderr]     Checking bloom v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]  --> src/main.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 |     time::{self, Instant},
[INFO] [stdout]   |            ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |     let mut filter = BloomFilter::new(n_items, error_rate, db_path).unwrap();
[INFO] [stdout]    |         ----^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `filter`
[INFO] [stdout]   --> src/main.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |     let mut filter = BloomFilter::new(n_items, error_rate, db_path).unwrap();
[INFO] [stdout]    |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_filter`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `n_items` and `mem_size` are never read
[INFO] [stdout]   --> src/bloom_filter.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub struct BloomFilter {
[INFO] [stdout]    |            ----------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 26 |     n_items: usize,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 27 |     mem_size: usize,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `n_items` and `mem_size` are never read
[INFO] [stdout]   --> src/bloom_filter.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub struct BloomFilter {
[INFO] [stdout]    |            ----------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 26 |     n_items: usize,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 27 |     mem_size: usize,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<(u8, usize), Infallible>
[INFO] [stdout]   --> src/bloom_filter.rs:82:54
[INFO] [stdout]    |
[INFO] [stdout] 82 |     fn calculate_hashes_mem_size(error_rate: f64) -> (u8, usize) {
[INFO] [stdout]    |                                                      ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]  --> src/main.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 |     time::{self, Instant},
[INFO] [stdout]   |            ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]   --> src/bloom_filter.rs:91:46
[INFO] [stdout]    |
[INFO] [stdout] 91 |     fn get_hash(&self, key: &str, i: u32) -> usize {
[INFO] [stdout]    |                                              ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<(u8, usize), Infallible>
[INFO] [stdout]   --> src/bloom_filter.rs:82:54
[INFO] [stdout]    |
[INFO] [stdout] 82 |     fn calculate_hashes_mem_size(error_rate: f64) -> (u8, usize) {
[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<usize, Infallible>
[INFO] [stdout]   --> src/bloom_filter.rs:91:46
[INFO] [stdout]    |
[INFO] [stdout] 91 |     fn get_hash(&self, key: &str, i: u32) -> usize {
[INFO] [stdout]    |                                              ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `bloom` (bin "bloom") due to 2 previous errors; 4 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `bloom` (lib test) due to 2 previous errors; 1 warning emitted
[INFO] [stdout] warning: fields `n_items` and `mem_size` are never read
[INFO] [stdout]   --> src/bloom_filter.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub struct BloomFilter {
[INFO] [stdout]    |            ----------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 26 |     n_items: usize,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 27 |     mem_size: usize,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |     let mut filter = BloomFilter::new(n_items, error_rate, db_path).unwrap();
[INFO] [stdout]    |         ----^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `filter`
[INFO] [stdout]   --> src/main.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |     let mut filter = BloomFilter::new(n_items, error_rate, db_path).unwrap();
[INFO] [stdout]    |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_filter`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<(u8, usize), Infallible>
[INFO] [stdout]   --> src/bloom_filter.rs:82:54
[INFO] [stdout]    |
[INFO] [stdout] 82 |     fn calculate_hashes_mem_size(error_rate: f64) -> (u8, usize) {
[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<usize, Infallible>
[INFO] [stdout]   --> src/bloom_filter.rs:91:46
[INFO] [stdout]    |
[INFO] [stdout] 91 |     fn get_hash(&self, key: &str, i: u32) -> usize {
[INFO] [stdout]    |                                              ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `n_items` and `mem_size` are never read
[INFO] [stdout]   --> src/bloom_filter.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub struct BloomFilter {
[INFO] [stdout]    |            ----------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 26 |     n_items: usize,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 27 |     mem_size: usize,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<(u8, usize), Infallible>
[INFO] [stdout]   --> src/bloom_filter.rs:82:54
[INFO] [stdout]    |
[INFO] [stdout] 82 |     fn calculate_hashes_mem_size(error_rate: f64) -> (u8, usize) {
[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<usize, Infallible>
[INFO] [stdout]   --> src/bloom_filter.rs:91:46
[INFO] [stdout]    |
[INFO] [stdout] 91 |     fn get_hash(&self, key: &str, i: u32) -> usize {
[INFO] [stdout]    |                                              ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `bloom` (lib) due to 2 previous errors; 1 warning emitted
[INFO] [stderr] error: could not compile `bloom` (bin "bloom" test) due to 2 previous errors; 4 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "51d225778fcb2ba7b4cb557709c7dd210d853b1945eedb7c8c59c82603b9aead", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51d225778fcb2ba7b4cb557709c7dd210d853b1945eedb7c8c59c82603b9aead", kill_on_drop: false }`
[INFO] [stdout] 51d225778fcb2ba7b4cb557709c7dd210d853b1945eedb7c8c59c82603b9aead
