[INFO] cloning repository https://github.com/longfangsong/mini-kv [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/longfangsong/mini-kv" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flongfangsong%2Fmini-kv", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flongfangsong%2Fmini-kv'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] a8e29d7435340fb7ddec5da1e10656902587c1ce [INFO] building longfangsong/mini-kv against master#ee1c3b385b6673b6ef37d80dfabe048e993c2ae2 for pr-102832-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flongfangsong%2Fmini-kv" "/workspace/builds/worker-4/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/longfangsong/mini-kv on toolchain ee1c3b385b6673b6ef37d80dfabe048e993c2ae2 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ee1c3b385b6673b6ef37d80dfabe048e993c2ae2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/longfangsong/mini-kv [INFO] finished tweaking git repo https://github.com/longfangsong/mini-kv [INFO] tweaked toml for git repo https://github.com/longfangsong/mini-kv written to /workspace/builds/worker-4/source/Cargo.toml [INFO] crate git repo https://github.com/longfangsong/mini-kv already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ee1c3b385b6673b6ef37d80dfabe048e993c2ae2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded fixedbitset v0.2.0 [INFO] [stderr] Downloaded memmap v0.7.0 [INFO] [stderr] Downloaded petgraph v0.5.0 [INFO] [stderr] Downloaded glob v0.3.0 [INFO] [stderr] Downloaded futures v0.3.4 [INFO] [stderr] Downloaded backtrace v0.3.46 [INFO] [stderr] Downloaded anyhow v1.0.28 [INFO] [stderr] Downloaded str_stack v0.1.0 [INFO] [stderr] Downloaded nix v0.16.1 [INFO] [stderr] Downloaded futures-sink v0.3.4 [INFO] [stderr] Downloaded hermit-abi v0.1.12 [INFO] [stderr] Downloaded pprof v0.3.16 [INFO] [stderr] Downloaded ppv-lite86 v0.2.6 [INFO] [stderr] Downloaded ahash v0.3.3 [INFO] [stderr] Downloaded grpcio v0.5.1 [INFO] [stderr] Downloaded bytes v0.5.4 [INFO] [stderr] Downloaded prost-derive v0.6.1 [INFO] [stderr] Downloaded failure_derive v0.1.7 [INFO] [stderr] Downloaded synstructure v0.12.3 [INFO] [stderr] Downloaded thiserror-impl v1.0.15 [INFO] [stderr] Downloaded tokio-current-thread v0.1.7 [INFO] [stderr] Downloaded void v1.0.2 [INFO] [stderr] Downloaded failure v0.1.7 [INFO] [stderr] Downloaded multimap v0.8.1 [INFO] [stderr] Downloaded itoa v0.4.5 [INFO] [stderr] Downloaded humantime v1.3.0 [INFO] [stderr] Downloaded arrayvec v0.4.12 [INFO] [stderr] Downloaded peeking_take_while v0.1.2 [INFO] [stderr] Downloaded either v1.5.3 [INFO] [stderr] Downloaded nodrop v0.1.14 [INFO] [stderr] Downloaded futures-macro v0.3.4 [INFO] [stderr] Downloaded quick-error v1.2.3 [INFO] [stderr] Downloaded env_logger v0.7.1 [INFO] [stderr] Downloaded futures-util v0.3.4 [INFO] [stderr] Downloaded proc-macro-hack v0.5.15 [INFO] [stderr] Downloaded futures-executor v0.3.4 [INFO] [stderr] Downloaded futures v0.1.29 [INFO] [stderr] Downloaded num-format v0.4.0 [INFO] [stderr] Downloaded indexmap v1.3.2 [INFO] [stderr] Downloaded itertools v0.8.2 [INFO] [stderr] Downloaded nom v4.2.3 [INFO] [stderr] Downloaded prost v0.6.1 [INFO] [stderr] Downloaded proc-macro2 v1.0.10 [INFO] [stderr] Downloaded bindgen v0.51.1 [INFO] [stderr] Downloaded regex v1.3.7 [INFO] [stderr] Downloaded tempfile v3.1.0 [INFO] [stderr] Downloaded quick-xml v0.18.1 [INFO] [stderr] Downloaded prost-types v0.6.1 [INFO] [stderr] Downloaded rgb v0.8.17 [INFO] [stderr] Downloaded futures-channel v0.3.4 [INFO] [stderr] Downloaded regex-syntax v0.6.17 [INFO] [stderr] Downloaded backtrace-sys v0.1.36 [INFO] [stderr] Downloaded futures-core v0.3.4 [INFO] [stderr] Downloaded libz-sys v1.0.25 [INFO] [stderr] Downloaded futures-io v0.3.4 [INFO] [stderr] Downloaded futures-task v0.3.4 [INFO] [stderr] Downloaded symbolic-common v6.1.4 [INFO] [stderr] Downloaded const-random-macro v0.1.8 [INFO] [stderr] Downloaded const-random v0.1.8 [INFO] [stderr] Downloaded stable_deref_trait v1.1.1 [INFO] [stderr] Downloaded which v3.1.1 [INFO] [stderr] Downloaded uuid v0.7.4 [INFO] [stderr] Downloaded proc-macro-nested v0.1.4 [INFO] [stderr] Downloaded rustc-demangle v0.1.16 [INFO] [stderr] Downloaded version_check v0.1.5 [INFO] [stderr] Downloaded quote v1.0.3 [INFO] [stderr] Downloaded libloading v0.5.2 [INFO] [stderr] Downloaded thread_local v1.0.1 [INFO] [stderr] Downloaded pkg-config v0.3.17 [INFO] [stderr] Downloaded inferno v0.9.5 [INFO] [stderr] Downloaded syn v1.0.18 [INFO] [stderr] Downloaded cpp_demangle v0.2.15 [INFO] [stderr] Downloaded protobuf v2.14.0 [INFO] [stderr] Downloaded tokio-executor v0.1.10 [INFO] [stderr] Downloaded cexpr v0.3.6 [INFO] [stderr] Downloaded clang-sys v0.28.1 [INFO] [stderr] Downloaded aho-corasick v0.7.10 [INFO] [stderr] Downloaded cmake v0.1.42 [INFO] [stderr] Downloaded cc v1.0.52 [INFO] [stderr] Downloaded vcpkg v0.2.8 [INFO] [stderr] Downloaded remove_dir_all v0.5.2 [INFO] [stderr] Downloaded debugid v0.5.3 [INFO] [stderr] Downloaded walkdir v2.3.1 [INFO] [stderr] Downloaded rustc-hash v1.1.0 [INFO] [stderr] Downloaded shlex v0.1.1 [INFO] [stderr] Downloaded libc v0.2.69 [INFO] [stderr] Downloaded thiserror v1.0.15 [INFO] [stderr] Downloaded prost-build v0.6.1 [INFO] [stderr] Downloaded futures-locks v0.5.0 [INFO] [stderr] Downloaded msvc-demangler v0.7.0 [INFO] [stderr] Downloaded symbolic-demangle v6.1.4 [INFO] [stderr] Downloaded grpcio-sys v0.5.2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:83125433e4fff17b1ac56874832f668d9df75ee638575aca552b68e127bedee9" "/opt/rustwide/cargo-home/bin/cargo" "+ee1c3b385b6673b6ef37d80dfabe048e993c2ae2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] dd1db02c94e50b1c150cd2ae74f81e4776e9d7eca4ee0a19fc75aa30b4d646a4 [INFO] running `Command { std: "docker" "start" "-a" "dd1db02c94e50b1c150cd2ae74f81e4776e9d7eca4ee0a19fc75aa30b4d646a4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "dd1db02c94e50b1c150cd2ae74f81e4776e9d7eca4ee0a19fc75aa30b4d646a4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "dd1db02c94e50b1c150cd2ae74f81e4776e9d7eca4ee0a19fc75aa30b4d646a4", kill_on_drop: false }` [INFO] [stdout] dd1db02c94e50b1c150cd2ae74f81e4776e9d7eca4ee0a19fc75aa30b4d646a4 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:83125433e4fff17b1ac56874832f668d9df75ee638575aca552b68e127bedee9" "/opt/rustwide/cargo-home/bin/cargo" "+ee1c3b385b6673b6ef37d80dfabe048e993c2ae2" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 2f1488f4a7203db87362db889643075f8b1feb0226afed978f23c2dd8111ad2b [INFO] running `Command { std: "docker" "start" "-a" "2f1488f4a7203db87362db889643075f8b1feb0226afed978f23c2dd8111ad2b", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.69 [INFO] [stderr] Compiling cfg-if v0.1.10 [INFO] [stderr] Compiling proc-macro2 v1.0.10 [INFO] [stderr] Compiling unicode-xid v0.2.0 [INFO] [stderr] Compiling cc v1.0.52 [INFO] [stderr] Compiling memchr v2.3.3 [INFO] [stderr] Compiling syn v1.0.18 [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] Compiling glob v0.3.0 [INFO] [stderr] Compiling autocfg v1.0.0 [INFO] [stderr] Compiling getrandom v0.1.14 [INFO] [stderr] Compiling thread_local v1.0.1 [INFO] [stderr] Compiling regex-syntax v0.6.17 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Compiling log v0.4.8 [INFO] [stderr] Compiling aho-corasick v0.7.10 [INFO] [stderr] Compiling version_check v0.1.5 [INFO] [stderr] Compiling clang-sys v0.28.1 [INFO] [stderr] Compiling anyhow v1.0.28 [INFO] [stderr] Compiling quote v1.0.3 [INFO] [stderr] Compiling nom v4.2.3 [INFO] [stderr] Compiling proc-macro-hack v0.5.15 [INFO] [stderr] Compiling libloading v0.5.2 [INFO] [stderr] Compiling indexmap v1.3.2 [INFO] [stderr] Compiling either v1.5.3 [INFO] [stderr] Compiling pkg-config v0.3.17 [INFO] [stderr] Compiling futures v0.1.29 [INFO] [stderr] Compiling itertools v0.8.2 [INFO] [stderr] Compiling rand_core v0.5.1 [INFO] [stderr] Compiling backtrace-sys v0.1.36 [INFO] [stderr] Compiling bindgen v0.51.1 [INFO] [stderr] Compiling ppv-lite86 v0.2.6 [INFO] [stderr] Compiling regex v1.3.7 [INFO] [stderr] Compiling rand_chacha v0.2.2 [INFO] [stderr] Compiling cexpr v0.3.6 [INFO] [stderr] Compiling libz-sys v1.0.25 [INFO] [stderr] Compiling which v3.1.1 [INFO] [stderr] Compiling peeking_take_while v0.1.2 [INFO] [stderr] Compiling rustc-hash v1.1.0 [INFO] [stderr] Compiling failure_derive v0.1.7 [INFO] [stderr] Compiling same-file v1.0.6 [INFO] [stderr] Compiling shlex v0.1.1 [INFO] [stderr] Compiling bytes v0.5.4 [INFO] [stderr] Compiling walkdir v2.3.1 [INFO] [stderr] Compiling prost-build v0.6.1 [INFO] [stderr] Compiling rand v0.7.3 [INFO] [stderr] Compiling crossbeam-utils v0.7.2 [INFO] [stderr] Compiling cmake v0.1.42 [INFO] [stderr] Compiling rustc-demangle v0.1.16 [INFO] [stderr] Compiling unicode-segmentation v1.6.0 [INFO] [stderr] Compiling arrayvec v0.4.12 [INFO] [stderr] Compiling fixedbitset v0.2.0 [INFO] [stderr] Compiling remove_dir_all v0.5.2 [INFO] [stderr] Compiling proc-macro-nested v0.1.4 [INFO] [stderr] Compiling petgraph v0.5.0 [INFO] [stderr] Compiling synstructure v0.12.3 [INFO] [stderr] Compiling tempfile v3.1.0 [INFO] [stderr] Compiling heck v0.3.1 [INFO] [stderr] Compiling backtrace v0.3.46 [INFO] [stderr] Compiling const-random-macro v0.1.8 [INFO] [stderr] Compiling cpp_demangle v0.2.15 [INFO] [stderr] Compiling futures-sink v0.3.4 [INFO] [stderr] Compiling uuid v0.7.4 [INFO] [stderr] Compiling futures-core v0.3.4 [INFO] [stderr] Compiling multimap v0.8.1 [INFO] [stderr] Compiling protobuf v2.14.0 [INFO] [stderr] Compiling nodrop v0.1.14 [INFO] [stderr] Compiling futures-channel v0.3.4 [INFO] [stderr] Compiling debugid v0.5.3 [INFO] [stderr] Compiling const-random v0.1.8 [INFO] [stderr] Compiling memmap v0.7.0 [INFO] [stderr] Compiling symbolic-demangle v6.1.4 [INFO] [stderr] Compiling nix v0.16.1 [INFO] [stderr] Compiling futures-io v0.3.4 [INFO] [stderr] Compiling futures-task v0.3.4 [INFO] [stderr] Compiling pin-utils v0.1.0 [INFO] [stderr] Compiling slab v0.4.2 [INFO] [stderr] Compiling stable_deref_trait v1.1.1 [INFO] [stderr] Compiling itoa v0.4.5 [INFO] [stderr] Compiling tokio-executor v0.1.10 [INFO] [stderr] Compiling ahash v0.3.3 [INFO] [stderr] Compiling num-format v0.4.0 [INFO] [stderr] Compiling msvc-demangler v0.7.0 [INFO] [stderr] Compiling quick-xml v0.18.1 [INFO] [stderr] Compiling void v1.0.2 [INFO] [stderr] Compiling quick-error v1.2.3 [INFO] [stderr] Compiling str_stack v0.1.0 [INFO] [stderr] Compiling rgb v0.8.17 [INFO] [stderr] Compiling inferno v0.9.5 [INFO] [stderr] Compiling humantime v1.3.0 [INFO] [stderr] Compiling tokio-current-thread v0.1.7 [INFO] [stderr] Compiling atty v0.2.14 [INFO] [stderr] Compiling spin v0.5.2 [INFO] [stderr] Compiling prost-derive v0.6.1 [INFO] [stderr] Compiling futures-macro v0.3.4 [INFO] [stderr] Compiling thiserror-impl v1.0.15 [INFO] [stderr] Compiling failure v0.1.7 [INFO] [stderr] Compiling symbolic-common v6.1.4 [INFO] [stderr] Compiling termcolor v1.1.0 [INFO] [stderr] Compiling futures-util v0.3.4 [INFO] [stderr] Compiling env_logger v0.7.1 [INFO] [stderr] Compiling thiserror v1.0.15 [INFO] [stderr] Compiling futures-locks v0.5.0 [INFO] [stderr] Compiling grpcio-sys v0.5.2 [INFO] [stderr] Compiling prost v0.6.1 [INFO] [stderr] Compiling prost-types v0.6.1 [INFO] [stderr] Compiling futures-executor v0.3.4 [INFO] [stderr] Compiling futures v0.3.4 [INFO] [stderr] Compiling pprof v0.3.16 [INFO] [stderr] Compiling grpcio v0.5.1 [INFO] [stderr] Compiling rpc v0.1.0 (/opt/rustwide/workdir/rpc) [INFO] [stderr] Compiling mini-kv v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `scan` [INFO] [stdout] --> src/test/benchmark.rs:22:9 [INFO] [stdout] | [INFO] [stdout] 22 | let scan = 0.1; [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_scan` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `key` is never read [INFO] [stdout] --> src/test/benchmark.rs:38:21 [INFO] [stdout] | [INFO] [stdout] 38 | let mut key = [0u8; 8]; [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 3m 23s [INFO] running `Command { std: "docker" "inspect" "2f1488f4a7203db87362db889643075f8b1feb0226afed978f23c2dd8111ad2b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2f1488f4a7203db87362db889643075f8b1feb0226afed978f23c2dd8111ad2b", kill_on_drop: false }` [INFO] [stdout] 2f1488f4a7203db87362db889643075f8b1feb0226afed978f23c2dd8111ad2b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:83125433e4fff17b1ac56874832f668d9df75ee638575aca552b68e127bedee9" "/opt/rustwide/cargo-home/bin/cargo" "+ee1c3b385b6673b6ef37d80dfabe048e993c2ae2" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] d5a25d33836be693bc9221f362b91271fef699d5f76a3675a12c39d910c7c5b4 [INFO] running `Command { std: "docker" "start" "-a" "d5a25d33836be693bc9221f362b91271fef699d5f76a3675a12c39d910c7c5b4", kill_on_drop: false }` [INFO] [stderr] Compiling mini-kv v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `scan` [INFO] [stdout] --> src/test/benchmark.rs:22:9 [INFO] [stdout] | [INFO] [stdout] 22 | let scan = 0.1; [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_scan` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `key` is never read [INFO] [stdout] --> src/test/benchmark.rs:38:21 [INFO] [stdout] | [INFO] [stdout] 38 | let mut key = [0u8; 8]; [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.65s [INFO] running `Command { std: "docker" "inspect" "d5a25d33836be693bc9221f362b91271fef699d5f76a3675a12c39d910c7c5b4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d5a25d33836be693bc9221f362b91271fef699d5f76a3675a12c39d910c7c5b4", kill_on_drop: false }` [INFO] [stdout] d5a25d33836be693bc9221f362b91271fef699d5f76a3675a12c39d910c7c5b4