[INFO] fetching crate ukhs 0.3.4... [INFO] checking ukhs-0.3.4 against master#8007b506ac5da629f223b755f5a5391edd5f6d01 for pr-88041 [INFO] extracting crate ukhs 0.3.4 into /workspace/builds/worker-2/source [INFO] validating manifest of crates.io crate ukhs 0.3.4 on toolchain 8007b506ac5da629f223b755f5a5391edd5f6d01 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate ukhs 0.3.4 [INFO] finished tweaking crates.io crate ukhs 0.3.4 [INFO] tweaked toml for crates.io crate ukhs 0.3.4 written to /workspace/builds/worker-2/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "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" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] a65eaf69dbc6269772b750b583fa0b667b8cd6fc55de0e9bbe57fb6547df5a28 [INFO] running `Command { std: "docker" "start" "-a" "a65eaf69dbc6269772b750b583fa0b667b8cd6fc55de0e9bbe57fb6547df5a28", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a65eaf69dbc6269772b750b583fa0b667b8cd6fc55de0e9bbe57fb6547df5a28", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a65eaf69dbc6269772b750b583fa0b667b8cd6fc55de0e9bbe57fb6547df5a28", kill_on_drop: false }` [INFO] [stdout] a65eaf69dbc6269772b750b583fa0b667b8cd6fc55de0e9bbe57fb6547df5a28 [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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e51364c69752c16336c91fa12c90dd72cade3123f29989e1bb3d979c2ad5b1d6 [INFO] running `Command { std: "docker" "start" "-a" "e51364c69752c16336c91fa12c90dd72cade3123f29989e1bb3d979c2ad5b1d6", kill_on_drop: false }` [INFO] [stderr] Compiling memchr v2.4.0 [INFO] [stderr] Compiling cc v1.0.69 [INFO] [stderr] Compiling syn v1.0.74 [INFO] [stderr] Checking ppv-lite86 v0.2.10 [INFO] [stderr] Compiling version_check v0.9.3 [INFO] [stderr] Checking remove_dir_all v0.5.3 [INFO] [stderr] Checking byteorder v1.4.3 [INFO] [stderr] Checking bit-vec v0.6.3 [INFO] [stderr] Checking regex-syntax v0.6.25 [INFO] [stderr] Checking rand_core v0.3.1 [INFO] [stderr] Compiling miniz_oxide v0.4.4 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Checking itertools v0.8.2 [INFO] [stderr] Checking getrandom v0.2.3 [INFO] [stderr] Checking wait-timeout v0.2.0 [INFO] [stderr] Checking rand_isaac v0.1.1 [INFO] [stderr] Checking rand_xorshift v0.1.1 [INFO] [stderr] Checking rand_hc v0.1.0 [INFO] [stderr] Checking rand_chacha v0.1.1 [INFO] [stderr] Checking rand v0.5.6 [INFO] [stderr] Checking bit-set v0.5.2 [INFO] [stderr] Checking rand_core v0.6.3 [INFO] [stderr] Checking rand_xoshiro v0.1.0 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Compiling error-chain v0.12.4 [INFO] [stderr] Checking rand v0.8.4 [INFO] [stderr] Checking criterion-plot v0.3.1 [INFO] [stderr] Checking object v0.26.0 [INFO] [stderr] Checking csv-core v0.1.10 [INFO] [stderr] Checking bstr v0.2.16 [INFO] [stderr] Checking tempfile v3.2.0 [INFO] [stderr] Checking rusty-fork v0.2.2 [INFO] [stderr] Compiling backtrace v0.3.61 [INFO] [stderr] Compiling bbhash-sys v0.1.0 [INFO] [stderr] Checking csv v1.1.6 [INFO] [stderr] Checking proptest v0.9.6 [INFO] [stderr] Compiling synstructure v0.12.5 [INFO] [stderr] Checking bbhash v0.1.1 [INFO] [stderr] Compiling failure_derive v0.1.8 [INFO] [stderr] Compiling serde_derive v1.0.127 [INFO] [stderr] Checking nthash v0.4.3 [INFO] [stderr] Checking failure v0.1.8 [INFO] [stderr] Checking ukhs v0.3.4 (/opt/rustwide/workdir) [INFO] [stderr] Checking criterion v0.2.11 [INFO] [stdout] warning: unused import: `std::collections::HashSet` [INFO] [stdout] --> tests/ukhs.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use std::collections::HashSet; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::iter::FromIterator` [INFO] [stdout] --> tests/ukhs.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | use std::iter::FromIterator; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> tests/ukhs.rs:17:13 [INFO] [stdout] | [INFO] [stdout] 17 | let mut unikmers: Vec = it.map(|(_, x)| x).collect(); [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] --> tests/ukhs.rs:29:13 [INFO] [stdout] | [INFO] [stdout] 29 | let mut ukhs_unhash: Vec = ukhs_hash [INFO] [stdout] | ----^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:397:13 [INFO] [stdout] | [INFO] [stdout] 397 | let mut ukhs_unhash_set: HashSet = ukhs_hash [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/lib.rs:439:13 [INFO] [stdout] | [INFO] [stdout] 439 | let mut unikmers: Vec = it.map(|(_, x)| x).collect(); [INFO] [stdout] | ----^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lib.rs:462:13 [INFO] [stdout] | [INFO] [stdout] 462 | let mut ukhs_unhash: Vec = ukhs_hash [INFO] [stdout] | ----^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 26.54s [INFO] running `Command { std: "docker" "inspect" "e51364c69752c16336c91fa12c90dd72cade3123f29989e1bb3d979c2ad5b1d6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e51364c69752c16336c91fa12c90dd72cade3123f29989e1bb3d979c2ad5b1d6", kill_on_drop: false }` [INFO] [stdout] e51364c69752c16336c91fa12c90dd72cade3123f29989e1bb3d979c2ad5b1d6