[INFO] fetching crate shardio 0.7.3... [INFO] checking shardio-0.7.3 against try#b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8 for pr-78363 [INFO] extracting crate shardio 0.7.3 into /workspace/builds/worker-10/source [INFO] validating manifest of crates.io crate shardio 0.7.3 on toolchain b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking crates.io crate shardio 0.7.3 [INFO] finished tweaking crates.io crate shardio 0.7.3 [INFO] tweaked toml for crates.io crate shardio 0.7.3 written to /workspace/builds/worker-10/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] b268809183326380aff15868dbb9098d090293911ec333811483a946aff8ef27 [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" "b268809183326380aff15868dbb9098d090293911ec333811483a946aff8ef27", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "b268809183326380aff15868dbb9098d090293911ec333811483a946aff8ef27", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b268809183326380aff15868dbb9098d090293911ec333811483a946aff8ef27", kill_on_drop: false }` [INFO] [stdout] b268809183326380aff15868dbb9098d090293911ec333811483a946aff8ef27 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+b2c2190fa7bf856bb0ed5e8806266e3a2135c6f8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] c2bc2110b9ed1cbfe8be7cf69e85a6aefd835634a065852b8dc3766276d0aec6 [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" "c2bc2110b9ed1cbfe8be7cf69e85a6aefd835634a065852b8dc3766276d0aec6", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Compiling libc v0.2.80 [INFO] [stderr] Compiling proc-macro2 v1.0.24 [INFO] [stderr] Compiling unicode-xid v0.2.1 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Compiling syn v1.0.48 [INFO] [stderr] Checking cfg-if v0.1.10 [INFO] [stderr] Compiling serde_derive v1.0.117 [INFO] [stderr] Compiling serde v1.0.117 [INFO] [stderr] Compiling memchr v2.3.3 [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Compiling const_fn v0.4.2 [INFO] [stderr] Compiling byteorder v1.3.4 [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Compiling getrandom v0.1.15 [INFO] [stderr] Compiling ryu v1.0.5 [INFO] [stderr] Compiling log v0.4.11 [INFO] [stderr] Compiling cc v1.0.61 [INFO] [stderr] Checking scopeguard v1.1.0 [INFO] [stderr] Compiling rayon-core v1.9.0 [INFO] [stderr] Compiling failure_derive v0.1.8 [INFO] [stderr] Checking either v1.6.1 [INFO] [stderr] Compiling maybe-uninit v2.0.0 [INFO] [stderr] Checking regex-syntax v0.6.20 [INFO] [stderr] Compiling serde_json v1.0.59 [INFO] [stderr] Checking gimli v0.22.0 [INFO] [stderr] Checking itoa v0.4.6 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Checking adler v0.2.3 [INFO] [stderr] Checking ppv-lite86 v0.2.9 [INFO] [stderr] Checking rustc-demangle v0.1.18 [INFO] [stderr] Checking unicode-width v0.1.8 [INFO] [stderr] Checking object v0.21.1 [INFO] [stderr] Checking same-file v1.0.6 [INFO] [stderr] Checking half v1.6.0 [INFO] [stderr] Checking oorandom v11.1.2 [INFO] [stderr] Checking remove_dir_all v0.5.3 [INFO] [stderr] Checking min-max-heap v1.3.0 [INFO] [stderr] Checking ansi_term v0.11.0 [INFO] [stderr] Checking thread_local v1.0.1 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Checking itertools v0.9.0 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Compiling crossbeam-utils v0.8.0 [INFO] [stderr] Compiling memoffset v0.5.6 [INFO] [stderr] Compiling miniz_oxide v0.4.3 [INFO] [stderr] Compiling num-traits v0.2.12 [INFO] [stderr] Compiling crossbeam-utils v0.7.2 [INFO] [stderr] Compiling rayon v1.5.0 [INFO] [stderr] Checking walkdir v2.3.1 [INFO] [stderr] Checking pretty_assertions v0.5.1 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Checking regex-automata v0.1.9 [INFO] [stderr] Checking fxhash v0.2.1 [INFO] [stderr] Checking aho-corasick v0.7.14 [INFO] [stderr] Checking csv-core v0.1.10 [INFO] [stderr] Checking clap v2.33.3 [INFO] [stderr] Compiling quote v1.0.7 [INFO] [stderr] Compiling cast v0.2.3 [INFO] [stderr] Checking crossbeam-channel v0.4.4 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Compiling lz4-sys v1.9.2 [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stderr] Checking criterion-plot v0.4.3 [INFO] [stderr] Checking crossbeam-epoch v0.9.0 [INFO] [stderr] Checking crossbeam-channel v0.5.0 [INFO] [stderr] Checking rand_chacha v0.2.2 [INFO] [stderr] Checking plotters v0.2.15 [INFO] [stderr] Checking crossbeam-deque v0.8.0 [INFO] [stderr] Checking rand v0.7.3 [INFO] [stderr] Checking regex v1.4.1 [INFO] [stderr] Checking addr2line v0.13.0 [INFO] [stderr] Checking backtrace v0.3.53 [INFO] [stderr] Checking tempfile v3.1.0 [INFO] [stderr] Checking env_logger v0.7.1 [INFO] [stderr] Checking quickcheck v0.9.2 [INFO] [stderr] Compiling synstructure v0.12.4 [INFO] [stderr] Checking failure v0.1.8 [INFO] [stderr] Checking lz4 v1.23.2 [INFO] [stderr] Checking bstr v0.2.14 [INFO] [stderr] Checking bincode v1.3.1 [INFO] [stderr] Checking serde_cbor v0.11.1 [INFO] [stderr] Checking shardio v0.7.3 (/opt/rustwide/workdir) [INFO] [stderr] Checking tinytemplate v1.1.0 [INFO] [stderr] Checking csv v1.1.3 [INFO] [stderr] Checking criterion v0.3.3 [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 `std::result::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 `std::result::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 1m 20s [INFO] running `Command { std: "docker" "inspect" "c2bc2110b9ed1cbfe8be7cf69e85a6aefd835634a065852b8dc3766276d0aec6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c2bc2110b9ed1cbfe8be7cf69e85a6aefd835634a065852b8dc3766276d0aec6", kill_on_drop: false }` [INFO] [stdout] c2bc2110b9ed1cbfe8be7cf69e85a6aefd835634a065852b8dc3766276d0aec6