[INFO] cloning repository https://github.com/fabriceclementz/kvdb [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fabriceclementz/kvdb" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffabriceclementz%2Fkvdb", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffabriceclementz%2Fkvdb'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 5ee5e7d23f51cb043bfef6e702f4e3ee9c12e4b3 [INFO] checking fabriceclementz/kvdb against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffabriceclementz%2Fkvdb" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/fabriceclementz/kvdb on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/fabriceclementz/kvdb [INFO] finished tweaking git repo https://github.com/fabriceclementz/kvdb [INFO] tweaked toml for git repo https://github.com/fabriceclementz/kvdb written to /workspace/builds/worker-7-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/fabriceclementz/kvdb 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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 5bd8ecc35e76de9e8e9aa4c2f951d148a53e04d4bdcd577a3b5d32903a801f04 [INFO] running `Command { std: "docker" "start" "-a" "5bd8ecc35e76de9e8e9aa4c2f951d148a53e04d4bdcd577a3b5d32903a801f04", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "5bd8ecc35e76de9e8e9aa4c2f951d148a53e04d4bdcd577a3b5d32903a801f04", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5bd8ecc35e76de9e8e9aa4c2f951d148a53e04d4bdcd577a3b5d32903a801f04", kill_on_drop: false }` [INFO] [stdout] 5bd8ecc35e76de9e8e9aa4c2f951d148a53e04d4bdcd577a3b5d32903a801f04 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 44bef0790a91104020c667c53ebcffd3f626a1c8cc36685d3b4676e61016ef4b [INFO] running `Command { std: "docker" "start" "-a" "44bef0790a91104020c667c53ebcffd3f626a1c8cc36685d3b4676e61016ef4b", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.40 [INFO] [stderr] Compiling quote v1.0.20 [INFO] [stderr] Compiling unicode-ident v1.0.1 [INFO] [stderr] Compiling syn v1.0.98 [INFO] [stderr] Compiling serde_derive v1.0.137 [INFO] [stderr] Compiling serde v1.0.137 [INFO] [stderr] Checking byteorder v1.4.3 [INFO] [stderr] Compiling paste v1.0.7 [INFO] [stderr] Checking rmp v0.8.11 [INFO] [stderr] Checking rmp-serde v1.1.0 [INFO] [stderr] Checking kvdb v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::io::Seek` [INFO] [stdout] --> src/lib.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use std::io::Seek; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::io::Seek` [INFO] [stdout] --> src/lib.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use std::io::Seek; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Deserializer` and `Serializer` [INFO] [stdout] --> src/lib.rs:8:17 [INFO] [stdout] | [INFO] [stdout] 8 | use rmp_serde::{Deserializer, Serializer}; [INFO] [stdout] | ^^^^^^^^^^^^ ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Deserializer` and `Serializer` [INFO] [stdout] --> src/lib.rs:8:17 [INFO] [stdout] | [INFO] [stdout] 8 | use rmp_serde::{Deserializer, Serializer}; [INFO] [stdout] | ^^^^^^^^^^^^ ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Read` [INFO] [stdout] --> src/segment.rs:2:37 [INFO] [stdout] | [INFO] [stdout] 2 | use std::io::{BufReader, BufWriter, Read}; [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Read` [INFO] [stdout] --> src/segment.rs:2:37 [INFO] [stdout] | [INFO] [stdout] 2 | use std::io::{BufReader, BufWriter, Read}; [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:31:13 [INFO] [stdout] | [INFO] [stdout] 31 | let mut index = BTreeMap::new(); [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:31:13 [INFO] [stdout] | [INFO] [stdout] 31 | let mut index = BTreeMap::new(); [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `key` [INFO] [stdout] --> src/lib.rs:68:23 [INFO] [stdout] | [INFO] [stdout] 68 | pub fn get(&self, key: String) -> Option { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_key` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `key` [INFO] [stdout] --> src/lib.rs:68:23 [INFO] [stdout] | [INFO] [stdout] 68 | pub fn get(&self, key: String) -> Option { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_key` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `segment` [INFO] [stdout] --> src/lib.rs:98:26 [INFO] [stdout] | [INFO] [stdout] 98 | fn load_segment_in_index(segment: &Segment, index: &BTreeMap) { [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_segment` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `index` [INFO] [stdout] --> src/lib.rs:98:45 [INFO] [stdout] | [INFO] [stdout] 98 | fn load_segment_in_index(segment: &Segment, index: &BTreeMap) { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_index` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `segment` [INFO] [stdout] --> src/lib.rs:98:26 [INFO] [stdout] | [INFO] [stdout] 98 | fn load_segment_in_index(segment: &Segment, index: &BTreeMap) { [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_segment` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `index` [INFO] [stdout] --> src/lib.rs:98:45 [INFO] [stdout] | [INFO] [stdout] 98 | fn load_segment_in_index(segment: &Segment, index: &BTreeMap) { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_index` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `data_dir`, `segments`, and `index` are never read [INFO] [stdout] --> src/lib.rs:15:5 [INFO] [stdout] | [INFO] [stdout] 13 | pub struct KvDb { [INFO] [stdout] | ---- fields in this struct [INFO] [stdout] 14 | // directory that contains data [INFO] [stdout] 15 | data_dir: PathBuf, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 19 | segments: Vec, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] 20 | // Index that stores position of a key in a segment [INFO] [stdout] 21 | index: BTreeMap, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `KvDb` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `get` is never used [INFO] [stdout] --> src/lib.rs:86:12 [INFO] [stdout] | [INFO] [stdout] 80 | impl Command { [INFO] [stdout] | ------------ associated function in this implementation [INFO] [stdout] ... [INFO] [stdout] 86 | pub fn get(key: String) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `segment_num`, `pos`, and `len` are never read [INFO] [stdout] --> src/lib.rs:93:5 [INFO] [stdout] | [INFO] [stdout] 92 | struct CommandPos { [INFO] [stdout] | ---------- fields in this struct [INFO] [stdout] 93 | segment_num: u64, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] 94 | pos: u64, [INFO] [stdout] | ^^^ [INFO] [stdout] 95 | len: u64, [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `CommandPos` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `data_dir`, `segments`, and `index` are never read [INFO] [stdout] --> src/lib.rs:15:5 [INFO] [stdout] | [INFO] [stdout] 13 | pub struct KvDb { [INFO] [stdout] | ---- fields in this struct [INFO] [stdout] 14 | // directory that contains data [INFO] [stdout] 15 | data_dir: PathBuf, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 19 | segments: Vec, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] 20 | // Index that stores position of a key in a segment [INFO] [stdout] 21 | index: BTreeMap, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `KvDb` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `reader` is never read [INFO] [stdout] --> src/segment.rs:8:9 [INFO] [stdout] | [INFO] [stdout] 6 | pub struct Segment { [INFO] [stdout] | ------- field in this struct [INFO] [stdout] 7 | pub writer: BufWriter, [INFO] [stdout] 8 | pub reader: BufReader, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Segment` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `get` is never used [INFO] [stdout] --> src/lib.rs:86:12 [INFO] [stdout] | [INFO] [stdout] 80 | impl Command { [INFO] [stdout] | ------------ associated function in this implementation [INFO] [stdout] ... [INFO] [stdout] 86 | pub fn get(key: String) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `segment_num`, `pos`, and `len` are never read [INFO] [stdout] --> src/lib.rs:93:5 [INFO] [stdout] | [INFO] [stdout] 92 | struct CommandPos { [INFO] [stdout] | ---------- fields in this struct [INFO] [stdout] 93 | segment_num: u64, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] 94 | pos: u64, [INFO] [stdout] | ^^^ [INFO] [stdout] 95 | len: u64, [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `CommandPos` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `reader` is never read [INFO] [stdout] --> src/segment.rs:8:9 [INFO] [stdout] | [INFO] [stdout] 6 | pub struct Segment { [INFO] [stdout] | ------- field in this struct [INFO] [stdout] 7 | pub writer: BufWriter, [INFO] [stdout] 8 | pub reader: BufReader, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Segment` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 11 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 11 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.55s [INFO] running `Command { std: "docker" "inspect" "44bef0790a91104020c667c53ebcffd3f626a1c8cc36685d3b4676e61016ef4b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "44bef0790a91104020c667c53ebcffd3f626a1c8cc36685d3b4676e61016ef4b", kill_on_drop: false }` [INFO] [stdout] 44bef0790a91104020c667c53ebcffd3f626a1c8cc36685d3b4676e61016ef4b