[INFO] updating cached repository Dedda/blubber
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Dedda/blubber
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Dedda/blubber" "work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/gh/Dedda/blubber"`
[INFO] [stderr] Cloning into 'work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/gh/Dedda/blubber'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Dedda/blubber" "work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/gh/Dedda/blubber"`
[INFO] [stderr] Cloning into 'work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/gh/Dedda/blubber'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 712ea0290efe53a71f8ba9bd342fc4fdc1fd2d46
[INFO] sha for GitHub repo Dedda/blubber: 712ea0290efe53a71f8ba9bd342fc4fdc1fd2d46
[INFO] validating manifest of Dedda/blubber on toolchain master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+8869ee03d7f258e1b76a11c6fbb01b5708a9f504-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of Dedda/blubber on toolchain try#58b21121d0b447ceb3f1a655155d802191acf044
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+58b21121d0b447ceb3f1a655155d802191acf044-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing Dedda/blubber
[INFO] finished frobbing Dedda/blubber
[INFO] frobbed toml for Dedda/blubber written to work/ex/pr-61100/sources/master#8869ee03d7f258e1b76a11c6fbb01b5708a9f504/gh/Dedda/blubber/Cargo.toml
[INFO] started frobbing Dedda/blubber
[INFO] finished frobbing Dedda/blubber
[INFO] frobbed toml for Dedda/blubber written to work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/gh/Dedda/blubber/Cargo.toml
[INFO] crate Dedda/blubber already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+8869ee03d7f258e1b76a11c6fbb01b5708a9f504-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+58b21121d0b447ceb3f1a655155d802191acf044-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking Dedda/blubber against try#58b21121d0b447ceb3f1a655155d802191acf044 for pr-61100
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-61100/worker-4/try#58b21121d0b447ceb3f1a655155d802191acf044:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-61100/sources/try#58b21121d0b447ceb3f1a655155d802191acf044/gh/Dedda/blubber:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+58b21121d0b447ceb3f1a655155d802191acf044-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 23b36092676d071e80e68434c46bd46b1db64d9157b41d52c18077b10556ddb8
[INFO] running `"docker" "start" "-a" "23b36092676d071e80e68434c46bd46b1db64d9157b41d52c18077b10556ddb8"`
[INFO] [stderr]     Checking blubber v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `HashMap`
[INFO] [stderr]  --> src/core/index/mod.rs:1:24
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::collections::{HashMap, BTreeMap};
[INFO] [stderr]   |                        ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::hash::Hash`
[INFO] [stderr]  --> src/core/index/mod.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::hash::Hash;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::BTreeMap`
[INFO] [stderr]  --> src/core/store/mod.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::collections::BTreeMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::core::index::Index`
[INFO] [stderr]  --> src/core/store/mod.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use crate::core::index::Index;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `HashMap`
[INFO] [stderr]  --> src/core/index/mod.rs:1:24
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::collections::{HashMap, BTreeMap};
[INFO] [stderr]   |                        ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::hash::Hash`
[INFO] [stderr]  --> src/core/index/mod.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::hash::Hash;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::BTreeMap`
[INFO] [stderr]  --> src/core/store/mod.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::collections::BTreeMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::core::index::Index`
[INFO] [stderr]  --> src/core/store/mod.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use crate::core::index::Index;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/core/index/mod.rs:19:13
[INFO] [stderr]    |
[INFO] [stderr] 19 |         let mut data = &mut self.data;
[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: struct is never constructed: `Index`
[INFO] [stderr]  --> src/core/index/mod.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub struct Index<KeyT: Ord + Sized> {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/core/index/mod.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     pub fn new() -> Index<KeyT> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `clear`
[INFO] [stderr]   --> src/core/index/mod.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     pub fn clear(&mut self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `add`
[INFO] [stderr]   --> src/core/index/mod.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     pub fn add(&mut self, key: KeyT, addr: u64) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `find`
[INFO] [stderr]   --> src/core/index/mod.rs:27:5
[INFO] [stderr]    |
[INFO] [stderr] 27 |     pub fn find(&self, key: &KeyT) -> Option<u64> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_data_size`
[INFO] [stderr]   --> src/core/index/mod.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 |     pub fn get_data_size(&self) -> usize {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/core/index/mod.rs:19:13
[INFO] [stderr]    |
[INFO] [stderr] 19 |         let mut data = &mut self.data;
[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]     Finished dev [unoptimized + debuginfo] target(s) in 0.84s
[INFO] running `"docker" "inspect" "23b36092676d071e80e68434c46bd46b1db64d9157b41d52c18077b10556ddb8"`
[INFO] running `"docker" "rm" "-f" "23b36092676d071e80e68434c46bd46b1db64d9157b41d52c18077b10556ddb8"`
[INFO] [stdout] 23b36092676d071e80e68434c46bd46b1db64d9157b41d52c18077b10556ddb8