[INFO] updating cached repository mmmpa/learning_storage_engine [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/mmmpa/learning_storage_engine [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/mmmpa/learning_storage_engine" "work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/mmmpa/learning_storage_engine"` [INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/mmmpa/learning_storage_engine'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/mmmpa/learning_storage_engine" "work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/mmmpa/learning_storage_engine"` [INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/mmmpa/learning_storage_engine'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 6bdb87c206a45be350d7c41228ada15cb36e06ce [INFO] sha for GitHub repo mmmpa/learning_storage_engine: 6bdb87c206a45be350d7c41228ada15cb36e06ce [INFO] validating manifest of mmmpa/learning_storage_engine on toolchain master#60960a260f7b5c695fd0717311d72ce62dd4eb43 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of mmmpa/learning_storage_engine on toolchain try#266783e4e09e4e9d5307c1c8e695659c58bbcac7 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing mmmpa/learning_storage_engine [INFO] finished frobbing mmmpa/learning_storage_engine [INFO] frobbed toml for mmmpa/learning_storage_engine written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/mmmpa/learning_storage_engine/Cargo.toml [INFO] started frobbing mmmpa/learning_storage_engine [INFO] finished frobbing mmmpa/learning_storage_engine [INFO] frobbed toml for mmmpa/learning_storage_engine written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/mmmpa/learning_storage_engine/Cargo.toml [INFO] crate mmmpa/learning_storage_engine already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] checking mmmpa/learning_storage_engine against try#266783e4e09e4e9d5307c1c8e695659c58bbcac7 for pr-63376 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-5/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/mmmpa/learning_storage_engine:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/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" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] 36a379016ceda4f13e233c9a700b3edbbfa6b6a513f1ed8ade88aeb379d2466c [INFO] running `"docker" "start" "-a" "36a379016ceda4f13e233c9a700b3edbbfa6b6a513f1ed8ade88aeb379d2466c"` [INFO] [stderr] Checking intrusive-collections v0.7.8 [INFO] [stderr] Checking learning_storage_engine v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused `#[macro_use]` import [INFO] [stderr] --> src/main.rs:1:1 [INFO] [stderr] | [INFO] [stderr] 1 | #[macro_use] [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused imports: `DirEntry`, `ReadDir` [INFO] [stderr] --> src/hash_index_compaction.rs:2:28 [INFO] [stderr] | [INFO] [stderr] 2 | use std::fs::{OpenOptions, ReadDir, DirEntry, File}; [INFO] [stderr] | ^^^^^^^ ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `Path` [INFO] [stderr] --> src/hash_index_compaction.rs:8:17 [INFO] [stderr] | [INFO] [stderr] 8 | use std::path::{Path, PathBuf}; [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `replace` [INFO] [stderr] --> src/hash_index_compaction.rs:9:22 [INFO] [stderr] | [INFO] [stderr] 9 | use std::mem::{swap, replace}; [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `intrusive_collections::rbtree::RBTree` [INFO] [stderr] --> src/log_structured_merged_tree.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 7 | use intrusive_collections::rbtree::RBTree; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused imports: `KeyAdapter`, `RBTreeLink` [INFO] [stderr] --> src/log_structured_merged_tree.rs:8:29 [INFO] [stderr] | [INFO] [stderr] 8 | use intrusive_collections::{RBTreeLink, KeyAdapter}; [INFO] [stderr] | ^^^^^^^^^^ ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `RangeBounds` [INFO] [stderr] --> src/log_structured_merged_tree.rs:11:16 [INFO] [stderr] | [INFO] [stderr] 11 | use std::ops::{RangeBounds, Range}; [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] error[E0601]: `main` function not found in crate `learning_storage_engine` [INFO] [stderr] | [INFO] [stderr] = note: consider adding a `main` function to `src/main.rs` [INFO] [stderr] [INFO] [stderr] warning: unused `#[macro_use]` import [INFO] [stderr] --> src/main.rs:1:1 [INFO] [stderr] | [INFO] [stderr] 1 | #[macro_use] [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused imports: `DirEntry`, `ReadDir` [INFO] [stderr] --> src/hash_index_compaction.rs:2:28 [INFO] [stderr] | [INFO] [stderr] 2 | use std::fs::{OpenOptions, ReadDir, DirEntry, File}; [INFO] [stderr] | ^^^^^^^ ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `Path` [INFO] [stderr] --> src/hash_index_compaction.rs:8:17 [INFO] [stderr] | [INFO] [stderr] 8 | use std::path::{Path, PathBuf}; [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `replace` [INFO] [stderr] --> src/hash_index_compaction.rs:9:22 [INFO] [stderr] | [INFO] [stderr] 9 | use std::mem::{swap, replace}; [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `intrusive_collections::rbtree::RBTree` [INFO] [stderr] --> src/log_structured_merged_tree.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 7 | use intrusive_collections::rbtree::RBTree; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused imports: `KeyAdapter`, `RBTreeLink` [INFO] [stderr] --> src/log_structured_merged_tree.rs:8:29 [INFO] [stderr] | [INFO] [stderr] 8 | use intrusive_collections::{RBTreeLink, KeyAdapter}; [INFO] [stderr] | ^^^^^^^^^^ ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `RangeBounds` [INFO] [stderr] --> src/log_structured_merged_tree.rs:11:16 [INFO] [stderr] | [INFO] [stderr] 11 | use std::ops::{RangeBounds, Range}; [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] error: aborting due to previous error [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0601`. [INFO] [stderr] error: Could not compile `learning_storage_engine`. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/log_structured_merged_tree.rs:66:13 [INFO] [stderr] | [INFO] [stderr] 66 | let mut c1 = self.sorted_segment_path(); [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: method is never used: `create_first_segment` [INFO] [stderr] --> src/log_structured_merged_tree.rs:155:5 [INFO] [stderr] | [INFO] [stderr] 155 | fn create_first_segment(&mut self) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/hash_index_compaction.rs:28:9 [INFO] [stderr] | [INFO] [stderr] 28 | s.retrieve(); [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/log_structured_merged_tree.rs:132:9 [INFO] [stderr] | [INFO] [stderr] 132 | fs::write(self.create_path(last_id), data); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/log_structured_merged_tree.rs:161:9 [INFO] [stderr] | [INFO] [stderr] 161 | fs::write(path, m); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] error: build failed [INFO] running `"docker" "inspect" "36a379016ceda4f13e233c9a700b3edbbfa6b6a513f1ed8ade88aeb379d2466c"` [INFO] running `"docker" "rm" "-f" "36a379016ceda4f13e233c9a700b3edbbfa6b6a513f1ed8ade88aeb379d2466c"` [INFO] [stdout] 36a379016ceda4f13e233c9a700b3edbbfa6b6a513f1ed8ade88aeb379d2466c