[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 [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 [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 [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 [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