[INFO] cloning repository https://github.com/qisanyijiu/kvs [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/qisanyijiu/kvs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fqisanyijiu%2Fkvs", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fqisanyijiu%2Fkvs'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 711e05357d42b1bc3ccae767a9a378df8f1b6e12 [INFO] checking qisanyijiu/kvs against master#bdcb6a99e853732f8ec050ae4986aa3af51d44c5 for 92191_revert [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fqisanyijiu%2Fkvs" "/workspace/builds/worker-2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/qisanyijiu/kvs on toolchain bdcb6a99e853732f8ec050ae4986aa3af51d44c5 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+bdcb6a99e853732f8ec050ae4986aa3af51d44c5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/qisanyijiu/kvs [INFO] finished tweaking git repo https://github.com/qisanyijiu/kvs [INFO] tweaked toml for git repo https://github.com/qisanyijiu/kvs written to /workspace/builds/worker-2/source/Cargo.toml [INFO] crate git repo https://github.com/qisanyijiu/kvs already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+bdcb6a99e853732f8ec050ae4986aa3af51d44c5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+bdcb6a99e853732f8ec050ae4986aa3af51d44c5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] fecd94c7e8499b01ad5c577070b006fe7f2ab4f6a009c94a3e09a8e09dc0361d [INFO] running `Command { std: "docker" "start" "-a" "fecd94c7e8499b01ad5c577070b006fe7f2ab4f6a009c94a3e09a8e09dc0361d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "fecd94c7e8499b01ad5c577070b006fe7f2ab4f6a009c94a3e09a8e09dc0361d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fecd94c7e8499b01ad5c577070b006fe7f2ab4f6a009c94a3e09a8e09dc0361d", kill_on_drop: false }` [INFO] [stdout] fecd94c7e8499b01ad5c577070b006fe7f2ab4f6a009c94a3e09a8e09dc0361d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+bdcb6a99e853732f8ec050ae4986aa3af51d44c5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 5d440e873ac78a0a47cbb7ec29c5e14278c32fe16c1391264495de1e9cf5711a [INFO] running `Command { std: "docker" "start" "-a" "5d440e873ac78a0a47cbb7ec29c5e14278c32fe16c1391264495de1e9cf5711a", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v1.1.0 [INFO] [stderr] Compiling libc v0.2.119 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Checking cfg-if v0.1.10 [INFO] [stderr] Checking scopeguard v1.1.0 [INFO] [stderr] Compiling proc-macro2 v1.0.36 [INFO] [stderr] Compiling unicode-xid v0.2.2 [INFO] [stderr] Compiling syn v1.0.86 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Checking byteorder v1.4.3 [INFO] [stderr] Compiling maybe-uninit v2.0.0 [INFO] [stderr] Checking futures v0.1.31 [INFO] [stderr] Compiling serde_derive v1.0.136 [INFO] [stderr] Compiling serde v1.0.136 [INFO] [stderr] Compiling memchr v2.4.1 [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Checking slab v0.4.5 [INFO] [stderr] Compiling crossbeam-utils v0.8.7 [INFO] [stderr] Compiling crossbeam-epoch v0.9.7 [INFO] [stderr] Checking rand_core v0.4.2 [INFO] [stderr] Checking ryu v1.0.9 [INFO] [stderr] Compiling arrayvec v0.4.12 [INFO] [stderr] Compiling rayon-core v1.9.1 [INFO] [stderr] Compiling serde_json v1.0.79 [INFO] [stderr] Checking either v1.6.1 [INFO] [stderr] Checking itoa v1.0.1 [INFO] [stderr] Checking nodrop v0.1.14 [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Checking fnv v1.0.7 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Compiling semver v1.0.6 [INFO] [stderr] Compiling syn v0.15.44 [INFO] [stderr] Checking unicode-width v0.1.9 [INFO] [stderr] Compiling crc32fast v1.3.2 [INFO] [stderr] Compiling cc v1.0.73 [INFO] [stderr] Checking regex-syntax v0.6.25 [INFO] [stderr] Checking ansi_term v0.12.1 [INFO] [stderr] Checking vec_map v0.8.2 [INFO] [stderr] Checking gimli v0.26.1 [INFO] [stderr] Checking bitflags v1.3.2 [INFO] [stderr] Checking adler v1.0.2 [INFO] [stderr] Compiling failure_derive v0.1.8 [INFO] [stderr] Checking strsim v0.8.0 [INFO] [stderr] Compiling unicode-segmentation v1.9.0 [INFO] [stderr] Checking historian v4.0.4 [INFO] [stderr] Checking rustc-demangle v0.1.21 [INFO] [stderr] Checking quick-error v1.2.3 [INFO] [stderr] Checking memoffset v0.2.1 [INFO] [stderr] Checking scopeguard v0.3.3 [INFO] [stderr] Checking termcolor v1.1.3 [INFO] [stderr] Compiling escargot v0.4.0 [INFO] [stderr] Checking regex-automata v0.1.10 [INFO] [stderr] Checking predicates-core v1.0.3 [INFO] [stderr] Checking normalize-line-endings v0.3.0 [INFO] [stderr] Checking termtree v0.2.4 [INFO] [stderr] Checking same-file v1.0.6 [INFO] [stderr] Checking itoa v0.4.8 [INFO] [stderr] Checking difference v2.0.0 [INFO] [stderr] Checking remove_dir_all v0.5.3 [INFO] [stderr] Checking fastrand v1.7.0 [INFO] [stderr] Checking panic-control v0.1.4 [INFO] [stderr] Checking lock_api v0.3.4 [INFO] [stderr] Checking crossbeam-utils v0.6.6 [INFO] [stderr] Checking crossbeam-utils v0.6.5 (https://github.com/crossbeam-rs/crossbeam.git?rev=8cc906b#8cc906b9) [INFO] [stderr] Checking rand_core v0.3.1 [INFO] [stderr] Checking rand_jitter v0.1.4 [INFO] [stderr] Checking walkdir v2.3.2 [INFO] [stderr] Checking predicates-tree v1.0.5 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Compiling autocfg v0.1.8 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Checking itertools v0.8.2 [INFO] [stderr] Checking humantime v1.3.0 [INFO] [stderr] Checking rand_hc v0.1.0 [INFO] [stderr] Checking rand_isaac v0.1.1 [INFO] [stderr] Checking rand_xorshift v0.1.1 [INFO] [stderr] Checking fxhash v0.2.1 [INFO] [stderr] Checking rand_xoshiro v0.1.0 [INFO] [stderr] Compiling heck v0.3.3 [INFO] [stderr] Compiling crossbeam-utils v0.7.2 [INFO] [stderr] Compiling memoffset v0.5.6 [INFO] [stderr] Compiling memoffset v0.6.5 [INFO] [stderr] Compiling crossbeam-epoch v0.8.2 [INFO] [stderr] Compiling rayon v1.5.1 [INFO] [stderr] Compiling miniz_oxide v0.4.4 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling rand_pcg v0.1.2 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Checking crossbeam-channel v0.5.2 [INFO] [stderr] Checking smallvec v0.6.14 [INFO] [stderr] Compiling backtrace v0.3.64 [INFO] [stderr] Compiling quote v0.6.13 [INFO] [stderr] Compiling rustc_version v0.4.0 [INFO] [stderr] Checking aho-corasick v0.7.18 [INFO] [stderr] Checking object v0.27.1 [INFO] [stderr] Checking csv-core v0.1.10 [INFO] [stderr] Compiling parking_lot_core v0.6.2 [INFO] [stderr] Compiling parking_lot v0.9.0 [INFO] [stderr] Checking tokio-sync v0.1.8 [INFO] [stderr] Checking crossbeam-epoch v0.7.2 [INFO] [stderr] Checking crossbeam-epoch v0.7.1 (https://github.com/crossbeam-rs/crossbeam.git?rev=8cc906b#8cc906b9) [INFO] [stderr] Checking iovec v0.1.4 [INFO] [stderr] Checking num_cpus v1.13.1 [INFO] [stderr] Checking net2 v0.2.37 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking fs2 v0.4.3 [INFO] [stderr] Checking rand_os v0.1.3 [INFO] [stderr] Checking tempfile v3.3.0 [INFO] [stderr] Checking crossbeam-skiplist v0.0.0 (https://github.com/crossbeam-rs/crossbeam.git?rev=8cc906b#8cc906b9) [INFO] [stderr] Compiling cast v0.2.7 [INFO] [stderr] Checking bytes v0.4.12 [INFO] [stderr] Compiling quote v1.0.15 [INFO] [stderr] Checking clap v2.34.0 [INFO] [stderr] Checking crossbeam-deque v0.8.1 [INFO] [stderr] Checking mio v0.6.23 [INFO] [stderr] Checking tokio-executor v0.1.10 [INFO] [stderr] Checking crossbeam-queue v0.2.3 [INFO] [stderr] Checking crossbeam-channel v0.4.4 [INFO] [stderr] Checking addr2line v0.17.0 [INFO] [stderr] Checking regex v1.5.4 [INFO] [stderr] Checking tokio-timer v0.2.13 [INFO] [stderr] Checking tokio-current-thread v0.1.7 [INFO] [stderr] Checking tokio-io v0.1.13 [INFO] [stderr] Checking tokio-serde v0.3.0 [INFO] [stderr] Checking crossbeam-deque v0.7.4 [INFO] [stderr] Checking criterion-plot v0.3.1 [INFO] [stderr] Checking tokio-threadpool v0.1.18 [INFO] [stderr] Checking crossbeam v0.7.3 [INFO] [stderr] Checking tokio-codec v0.1.2 [INFO] [stderr] Checking tokio-reactor v0.1.12 [INFO] [stderr] Checking mio-uds v0.6.8 [INFO] [stderr] Checking float-cmp v0.8.0 [INFO] [stderr] Checking tokio-tcp v0.1.4 [INFO] [stderr] Checking tokio-udp v0.1.6 [INFO] [stderr] Checking tokio-uds v0.2.7 [INFO] [stderr] Checking tokio-fs v0.1.7 [INFO] [stderr] Checking env_logger v0.6.2 [INFO] [stderr] Checking predicates v1.0.8 [INFO] [stderr] Checking tokio v0.1.22 [INFO] [stderr] Compiling structopt-derive v0.2.18 [INFO] [stderr] Compiling synstructure v0.12.6 [INFO] [stderr] Checking structopt v0.2.18 [INFO] [stderr] Checking failure v0.1.8 [INFO] [stderr] Checking hashbrown v0.2.2 [INFO] [stderr] Checking bincode v1.3.3 [INFO] [stderr] Checking serde_bytes v0.10.5 [INFO] [stderr] Checking bstr v0.2.17 [INFO] [stderr] Checking pagecache v0.15.0 [INFO] [stderr] Checking csv v1.1.6 [INFO] [stderr] Checking tokio-serde-json v0.2.0 [INFO] [stderr] Checking tinytemplate v1.2.1 [INFO] [stderr] Checking criterion v0.2.11 [INFO] [stderr] Checking assert_cmd v0.11.1 [INFO] [stderr] Checking sled v0.22.1 [INFO] [stderr] Checking kvs v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: field is never read: `path` [INFO] [stdout] --> src/engines/kvs.rs:46:5 [INFO] [stdout] | [INFO] [stdout] 46 | path: Arc, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] note: `KvStore` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/engines/kvs.rs:43:10 [INFO] [stdout] | [INFO] [stdout] 43 | #[derive(Clone)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `path` [INFO] [stdout] --> src/engines/kvs.rs:46:5 [INFO] [stdout] | [INFO] [stdout] 46 | path: Arc, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] note: `KvStore` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis [INFO] [stdout] --> src/engines/kvs.rs:43:10 [INFO] [stdout] | [INFO] [stdout] 43 | #[derive(Clone)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/engines/kvs.rs:249:13 [INFO] [stdout] | [INFO] [stdout] 249 | serde_json::to_writer(&mut self.writer, &cmd); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/engines/sled.rs:66:17 [INFO] [stdout] | [INFO] [stdout] 66 | db.flush(); [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/engines/kvs.rs:249:13 [INFO] [stdout] | [INFO] [stdout] 249 | serde_json::to_writer(&mut self.writer, &cmd); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/engines/sled.rs:66:17 [INFO] [stdout] | [INFO] [stdout] 66 | db.flush(); [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 17.73s [INFO] running `Command { std: "docker" "inspect" "5d440e873ac78a0a47cbb7ec29c5e14278c32fe16c1391264495de1e9cf5711a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5d440e873ac78a0a47cbb7ec29c5e14278c32fe16c1391264495de1e9cf5711a", kill_on_drop: false }` [INFO] [stdout] 5d440e873ac78a0a47cbb7ec29c5e14278c32fe16c1391264495de1e9cf5711a