[INFO] cloning repository https://github.com/harpsword/kvs [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/harpsword/kvs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fharpsword%2Fkvs", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fharpsword%2Fkvs'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 4df158fb1d34c830ada699c62671fed6e10ca19a [INFO] checking harpsword/kvs against master#30b3f35c420694a4f24e5a4df00f06073f4f3a37 for pr-94081 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fharpsword%2Fkvs" "/workspace/builds/worker-13/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/harpsword/kvs on toolchain 30b3f35c420694a4f24e5a4df00f06073f4f3a37 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+30b3f35c420694a4f24e5a4df00f06073f4f3a37" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/harpsword/kvs [INFO] finished tweaking git repo https://github.com/harpsword/kvs [INFO] tweaked toml for git repo https://github.com/harpsword/kvs written to /workspace/builds/worker-13/source/Cargo.toml [INFO] crate git repo https://github.com/harpsword/kvs already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+30b3f35c420694a4f24e5a4df00f06073f4f3a37" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+30b3f35c420694a4f24e5a4df00f06073f4f3a37" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 7bbf3a0cec8aa0b3d2f9f4d99256a9300e9312111525bedf5de76363e3e6e6be [INFO] running `Command { std: "docker" "start" "-a" "7bbf3a0cec8aa0b3d2f9f4d99256a9300e9312111525bedf5de76363e3e6e6be", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "7bbf3a0cec8aa0b3d2f9f4d99256a9300e9312111525bedf5de76363e3e6e6be", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7bbf3a0cec8aa0b3d2f9f4d99256a9300e9312111525bedf5de76363e3e6e6be", kill_on_drop: false }` [INFO] [stdout] 7bbf3a0cec8aa0b3d2f9f4d99256a9300e9312111525bedf5de76363e3e6e6be [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+30b3f35c420694a4f24e5a4df00f06073f4f3a37" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] bfc1f5d93cff1cedf35c467fe874a3be5c821c689592a54affaa04c49c0c329f [INFO] running `Command { std: "docker" "start" "-a" "bfc1f5d93cff1cedf35c467fe874a3be5c821c689592a54affaa04c49c0c329f", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling libc v0.2.99 [INFO] [stderr] Compiling proc-macro2 v1.0.28 [INFO] [stderr] Compiling syn v1.0.74 [INFO] [stderr] Compiling memchr v2.4.0 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Compiling serde_derive v1.0.127 [INFO] [stderr] Compiling serde v1.0.127 [INFO] [stderr] Compiling semver v1.0.4 [INFO] [stderr] Compiling crossbeam-epoch v0.9.5 [INFO] [stderr] Checking either v1.6.1 [INFO] [stderr] Checking regex-automata v0.1.10 [INFO] [stderr] Compiling serde_json v1.0.66 [INFO] [stderr] Compiling cc v1.0.69 [INFO] [stderr] Checking itoa v0.4.7 [INFO] [stderr] Checking ppv-lite86 v0.2.10 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Checking gimli v0.25.0 [INFO] [stderr] Checking smallvec v1.6.1 [INFO] [stderr] Compiling crc32fast v1.2.1 [INFO] [stderr] Checking plotters-backend v0.3.2 [INFO] [stderr] Checking unicode-width v0.1.8 [INFO] [stderr] Compiling failure_derive v0.1.8 [INFO] [stderr] Checking rustc-demangle v0.1.20 [INFO] [stderr] Checking yaml-rust v0.3.5 [INFO] [stderr] Checking half v1.7.1 [INFO] [stderr] Checking byteorder v1.4.3 [INFO] [stderr] Checking same-file v1.0.6 [INFO] [stderr] Checking bitflags v1.3.1 [INFO] [stderr] Checking ansi_term v0.11.0 [INFO] [stderr] Checking oorandom v11.1.3 [INFO] [stderr] Compiling doc-comment v0.3.3 [INFO] [stderr] Checking predicates-core v1.0.2 [INFO] [stderr] Checking normalize-line-endings v0.3.0 [INFO] [stderr] Checking treeline v0.1.0 [INFO] [stderr] Checking difflib v0.4.0 [INFO] [stderr] Compiling memoffset v0.6.4 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling ryu v1.0.5 [INFO] [stderr] Checking instant v0.1.10 [INFO] [stderr] Checking lock_api v0.4.4 [INFO] [stderr] Compiling rayon v1.5.1 [INFO] [stderr] Checking miniz_oxide v0.4.4 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking predicates-tree v1.0.3 [INFO] [stderr] Checking itertools v0.10.1 [INFO] [stderr] Checking crossbeam-utils v0.8.5 [INFO] [stderr] Checking plotters-svg v0.3.1 [INFO] [stderr] Checking walkdir v2.3.2 [INFO] [stderr] Checking fxhash v0.2.1 [INFO] [stderr] Compiling backtrace v0.3.61 [INFO] [stderr] Checking addr2line v0.16.0 [INFO] [stderr] Checking crossbeam-channel v0.5.1 [INFO] [stderr] Compiling rustc_version v0.4.0 [INFO] [stderr] Checking aho-corasick v0.7.18 [INFO] [stderr] Checking object v0.26.0 [INFO] [stderr] Checking csv-core v0.1.10 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Checking getrandom v0.2.3 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking parking_lot_core v0.8.3 [INFO] [stderr] Checking fs2 v0.4.3 [INFO] [stderr] Checking wait-timeout v0.2.0 [INFO] [stderr] Checking plotters v0.3.1 [INFO] [stderr] Checking float-cmp v0.9.0 [INFO] [stderr] Checking clap v2.33.3 [INFO] [stderr] Checking crossbeam-deque v0.8.1 [INFO] [stderr] Checking rand_core v0.6.3 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking parking_lot v0.11.1 [INFO] [stderr] Checking rayon-core v1.9.1 [INFO] [stderr] Checking regex v1.5.4 [INFO] [stderr] Compiling cast v0.2.7 [INFO] [stderr] Checking sled v0.34.6 [INFO] [stderr] Checking rand v0.8.4 [INFO] [stderr] Checking criterion-plot v0.4.4 [INFO] [stderr] Checking predicates v2.0.1 [INFO] [stderr] Checking tempfile v3.2.0 [INFO] [stderr] Compiling synstructure v0.12.5 [INFO] [stderr] Checking failure v0.1.8 [INFO] [stderr] Checking bstr v0.2.16 [INFO] [stderr] Checking serde_cbor v0.11.2 [INFO] [stderr] Checking csv v1.1.6 [INFO] [stderr] Checking assert_cmd v2.0.0 [INFO] [stderr] Checking tinytemplate v1.2.1 [INFO] [stderr] Checking criterion v0.3.5 [INFO] [stderr] Checking kvs v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `crate::Result` [INFO] [stdout] --> src/common.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use crate::Result; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::env::current_dir` [INFO] [stdout] --> src/kv.rs:16:5 [INFO] [stdout] | [INFO] [stdout] 16 | use std::env::current_dir; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::Result` [INFO] [stdout] --> src/common.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use crate::Result; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::env::current_dir` [INFO] [stdout] --> src/kv.rs:16:5 [INFO] [stdout] | [INFO] [stdout] 16 | use std::env::current_dir; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `key` [INFO] [stdout] --> src/kv.rs:176:43 [INFO] [stdout] | [INFO] [stdout] 176 | if let Command::Set { key, value } = serde_json::from_reader(reader2)? { [INFO] [stdout] | ^^^ help: try ignoring the field: `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/kv.rs:176:43 [INFO] [stdout] | [INFO] [stdout] 176 | if let Command::Set { key, value } = serde_json::from_reader(reader2)? { [INFO] [stdout] | ^^^ help: try ignoring the field: `key: _` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `Log` [INFO] [stdout] --> src/command.rs:44:12 [INFO] [stdout] | [INFO] [stdout] 44 | pub struct Log { [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct is never constructed: `Log` [INFO] [stdout] --> src/command.rs:44:12 [INFO] [stdout] | [INFO] [stdout] 44 | pub struct Log { [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::fmt::Debug` [INFO] [stdout] --> src/bin/kvs-server.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use std::fmt::Debug; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::io::Read` [INFO] [stdout] --> src/bin/kvs-server.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use std::io::Read; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::env::temp_dir` [INFO] [stdout] --> benches/my_benchmark.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use std::env::temp_dir; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `black_box` [INFO] [stdout] --> benches/my_benchmark.rs:6:28 [INFO] [stdout] | [INFO] [stdout] 6 | use criterion::{Criterion, black_box, criterion_group, criterion_main}; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: `#[macro_use]` only has an effect on `extern crate` and modules [INFO] [stdout] --> benches/my_benchmark.rs:5:1 [INFO] [stdout] | [INFO] [stdout] 5 | #[macro_use] [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_attributes)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::fmt::Debug` [INFO] [stdout] --> src/bin/kvs-server.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use std::fmt::Debug; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::io::Read` [INFO] [stdout] --> src/bin/kvs-server.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use std::io::Read; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> benches/my_benchmark.rs:17:9 [INFO] [stdout] | [INFO] [stdout] 17 | for i in 0..len { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `i` [INFO] [stdout] --> benches/my_benchmark.rs:27:9 [INFO] [stdout] | [INFO] [stdout] 27 | for i in 0..len { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/kvs-server.rs:84:37 [INFO] [stdout] | [INFO] [stdout] 84 | pub fn handle_client(&mut self, mut tcp: TcpStream) -> Result<()> { [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/bin/kvs-client.rs:65:13 [INFO] [stdout] | [INFO] [stdout] 65 | let mut stream = TcpStream::connect(self.addr.clone())?; [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/bin/kvs-server.rs:84:37 [INFO] [stdout] | [INFO] [stdout] 84 | pub fn handle_client(&mut self, mut tcp: TcpStream) -> Result<()> { [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: field is never read: `engine` [INFO] [stdout] --> src/bin/kvs-server.rs:51:5 [INFO] [stdout] | [INFO] [stdout] 51 | engine: Engine, [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `engine` [INFO] [stdout] --> src/bin/kvs-server.rs:51:5 [INFO] [stdout] | [INFO] [stdout] 51 | engine: Engine, [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/kvs-client.rs:67:13 [INFO] [stdout] | [INFO] [stdout] 67 | let mut buf_writer = BufWriter::new(stream); [INFO] [stdout] | ----^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `addr` [INFO] [stdout] --> src/bin/kvs-client.rs:46:5 [INFO] [stdout] | [INFO] [stdout] 46 | addr: String, [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `run` [INFO] [stdout] --> src/bin/kvs-client.rs:63:12 [INFO] [stdout] | [INFO] [stdout] 63 | pub fn run(&self, cmd: &Command) -> Result> { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/kvs-client.rs:65:13 [INFO] [stdout] | [INFO] [stdout] 65 | let mut stream = TcpStream::connect(self.addr.clone())?; [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/bin/kvs-client.rs:67:13 [INFO] [stdout] | [INFO] [stdout] 67 | let mut buf_writer = BufWriter::new(stream); [INFO] [stdout] | ----^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `addr` [INFO] [stdout] --> src/bin/kvs-client.rs:46:5 [INFO] [stdout] | [INFO] [stdout] 46 | addr: String, [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `run` [INFO] [stdout] --> src/bin/kvs-client.rs:63:12 [INFO] [stdout] | [INFO] [stdout] 63 | pub fn run(&self, cmd: &Command) -> Result> { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 2m 49s [INFO] running `Command { std: "docker" "inspect" "bfc1f5d93cff1cedf35c467fe874a3be5c821c689592a54affaa04c49c0c329f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "bfc1f5d93cff1cedf35c467fe874a3be5c821c689592a54affaa04c49c0c329f", kill_on_drop: false }` [INFO] [stdout] bfc1f5d93cff1cedf35c467fe874a3be5c821c689592a54affaa04c49c0c329f