[INFO] fetching crate shardio 0.7.4... [INFO] checking shardio-0.7.4 against try#45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 for pr-83744 [INFO] extracting crate shardio 0.7.4 into /workspace/builds/worker-5/source [INFO] validating manifest of crates.io crate shardio 0.7.4 on toolchain 45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate shardio 0.7.4 [INFO] finished tweaking crates.io crate shardio 0.7.4 [INFO] tweaked toml for crates.io crate shardio 0.7.4 written to /workspace/builds/worker-5/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded is_sorted v0.1.1 [INFO] [stderr] Downloaded min-max-heap v1.3.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] cf4d20cadc88cfd67068405bd1340b728816ba72520b78017b2c1db83574a27c [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "cf4d20cadc88cfd67068405bd1340b728816ba72520b78017b2c1db83574a27c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "cf4d20cadc88cfd67068405bd1340b728816ba72520b78017b2c1db83574a27c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "cf4d20cadc88cfd67068405bd1340b728816ba72520b78017b2c1db83574a27c", kill_on_drop: false }` [INFO] [stdout] cf4d20cadc88cfd67068405bd1340b728816ba72520b78017b2c1db83574a27c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 5b291c2b19ddb108392b703442407529a8232a3041a63724caa5ad5fe611d19c [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "5b291c2b19ddb108392b703442407529a8232a3041a63724caa5ad5fe611d19c", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Compiling libc v0.2.93 [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Compiling proc-macro2 v1.0.26 [INFO] [stderr] Compiling unicode-xid v0.2.1 [INFO] [stderr] Compiling serde_derive v1.0.125 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Compiling ryu v1.0.5 [INFO] [stderr] Compiling getrandom v0.2.2 [INFO] [stderr] Checking byteorder v1.4.3 [INFO] [stderr] Compiling rayon-core v1.9.0 [INFO] [stderr] Compiling cc v1.0.67 [INFO] [stderr] Checking either v1.6.1 [INFO] [stderr] Checking scopeguard v1.1.0 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Compiling serde_json v1.0.64 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Checking itoa v0.4.7 [INFO] [stderr] Checking plotters-backend v0.3.0 [INFO] [stderr] Checking unicode-width v0.1.8 [INFO] [stderr] Checking same-file v1.0.6 [INFO] [stderr] Checking oorandom v11.1.3 [INFO] [stderr] Checking min-max-heap v1.3.0 [INFO] [stderr] Checking ansi_term v0.11.0 [INFO] [stderr] Checking difference v2.0.0 [INFO] [stderr] Checking is_sorted v0.1.1 [INFO] [stderr] Checking itertools v0.9.0 [INFO] [stderr] Checking itertools v0.10.0 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Checking regex-automata v0.1.9 [INFO] [stderr] Checking fxhash v0.2.1 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking walkdir v2.3.2 [INFO] [stderr] Checking plotters-svg v0.3.0 [INFO] [stderr] Checking csv-core v0.1.10 [INFO] [stderr] Checking pretty_assertions v0.6.1 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Checking clap v2.33.3 [INFO] [stderr] Checking env_logger v0.7.1 [INFO] [stderr] Compiling crossbeam-utils v0.8.3 [INFO] [stderr] Compiling memoffset v0.6.3 [INFO] [stderr] Compiling miniz_oxide v0.4.4 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling rayon v1.5.0 [INFO] [stderr] Compiling cast v0.2.5 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Compiling syn v1.0.69 [INFO] [stderr] Checking getrandom v0.1.16 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking rand_core v0.6.2 [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stderr] Checking criterion-plot v0.4.3 [INFO] [stderr] Compiling lz4-sys v1.9.2 [INFO] [stderr] Checking rand_chacha v0.3.0 [INFO] [stderr] Checking crossbeam-channel v0.5.1 [INFO] [stderr] Checking crossbeam-epoch v0.9.3 [INFO] [stderr] Checking crossbeam-deque v0.8.0 [INFO] [stderr] Checking rand_chacha v0.2.2 [INFO] [stderr] Checking rand v0.8.3 [INFO] [stderr] Checking backtrace v0.3.56 [INFO] [stderr] Checking rand v0.7.3 [INFO] [stderr] Checking plotters v0.3.0 [INFO] [stderr] Checking tempfile v3.2.0 [INFO] [stderr] Checking quickcheck v0.9.2 [INFO] [stderr] Compiling synstructure v0.12.4 [INFO] [stderr] Compiling failure_derive v0.1.8 [INFO] [stderr] Checking failure v0.1.8 [INFO] [stderr] Checking serde v1.0.125 [INFO] [stderr] Checking lz4 v1.23.2 [INFO] [stderr] Checking bstr v0.2.15 [INFO] [stderr] Checking serde_cbor v0.11.1 [INFO] [stderr] Checking bincode v1.3.3 [INFO] [stderr] Checking shardio v0.7.4 (/opt/rustwide/workdir) [INFO] [stderr] Checking csv v1.1.6 [INFO] [stderr] Checking tinytemplate v1.2.1 [INFO] [stderr] Checking criterion v0.3.4 [INFO] [stdout] warning: function is never used: `benchmark_roundtrip` [INFO] [stdout] --> benches/my_bench.rs:124:8 [INFO] [stdout] | [INFO] [stdout] 124 | fn benchmark_roundtrip(c: &mut Criterion) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `getf` [INFO] [stdout] --> benches/my_bench.rs:128:8 [INFO] [stdout] | [INFO] [stdout] 128 | fn getf() -> impl Write { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `direct` [INFO] [stdout] --> benches/my_bench.rs:132:8 [INFO] [stdout] | [INFO] [stdout] 132 | fn direct(size: usize) -> Result<(), Error> { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `lz4_only` [INFO] [stdout] --> benches/my_bench.rs:138:8 [INFO] [stdout] | [INFO] [stdout] 138 | fn lz4_only(size: usize) -> Result<(), Error> { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `bincode_only` [INFO] [stdout] --> benches/my_bench.rs:146:8 [INFO] [stdout] | [INFO] [stdout] 146 | fn bincode_only(size: usize) -> Result<(), Error> { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `bincode_lz4` [INFO] [stdout] --> benches/my_bench.rs:153:8 [INFO] [stdout] | [INFO] [stdout] 153 | fn bincode_lz4(size: usize) -> Result<(), Error> { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `bincode_buf_lz4` [INFO] [stdout] --> benches/my_bench.rs:161:8 [INFO] [stdout] | [INFO] [stdout] 161 | fn bincode_buf_lz4(size: usize) -> Result<(), Error> { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant is never used: `KB` [INFO] [stdout] --> benches/my_bench.rs:172:5 [INFO] [stdout] | [INFO] [stdout] 172 | const KB: usize = 1024; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: static is never used: `v` [INFO] [stdout] --> benches/my_bench.rs:173:5 [INFO] [stdout] | [INFO] [stdout] 173 | static v: [usize; 4] = [256 * KB, 512 * KB, 1024 * KB, 2048 * KB]; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> benches/my_bench.rs:95:21 [INFO] [stdout] | [INFO] [stdout] 95 | sender.send(tt); [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 `Result` that must be used [INFO] [stdout] --> benches/my_bench.rs:121:9 [INFO] [stdout] | [INFO] [stdout] 121 | check_round_trip(2048, 32, 1 << 13, 1 << 17); [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: static variable `v` should have an upper case name [INFO] [stdout] --> benches/my_bench.rs:173:12 [INFO] [stdout] | [INFO] [stdout] 173 | static v: [usize; 4] = [256 * KB, 512 * KB, 1024 * KB, 2048 * KB]; [INFO] [stdout] | ^ help: convert the identifier to upper case (notice the capitalization): `V` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_upper_case_globals)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 12 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 57.09s [INFO] running `Command { std: "docker" "inspect" "5b291c2b19ddb108392b703442407529a8232a3041a63724caa5ad5fe611d19c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5b291c2b19ddb108392b703442407529a8232a3041a63724caa5ad5fe611d19c", kill_on_drop: false }` [INFO] [stdout] 5b291c2b19ddb108392b703442407529a8232a3041a63724caa5ad5fe611d19c