[INFO] fetching crate rumi 0.2.1...
[INFO] checking rumi-0.2.1 against master#33fdb797f59421c7bbecaa4588ed5d7a31a9494a for pr-87190-3
[INFO] extracting crate rumi 0.2.1 into /workspace/builds/worker-90/source
[INFO] validating manifest of crates.io crate rumi 0.2.1 on toolchain 33fdb797f59421c7bbecaa4588ed5d7a31a9494a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rumi 0.2.1
[INFO] finished tweaking crates.io crate rumi 0.2.1
[INFO] tweaked toml for crates.io crate rumi 0.2.1 written to /workspace/builds/worker-90/source/Cargo.toml
[INFO] crate crates.io crate rumi 0.2.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/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" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a7216a91632d090d18ea94769556bfff0ca28bf452fac5e61e4428f2dffaa357
[INFO] running `Command { std: "docker" "start" "-a" "a7216a91632d090d18ea94769556bfff0ca28bf452fac5e61e4428f2dffaa357", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a7216a91632d090d18ea94769556bfff0ca28bf452fac5e61e4428f2dffaa357", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7216a91632d090d18ea94769556bfff0ca28bf452fac5e61e4428f2dffaa357", kill_on_drop: false }`
[INFO] [stdout] a7216a91632d090d18ea94769556bfff0ca28bf452fac5e61e4428f2dffaa357
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/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" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 04ce726987962ff54e7c2ee0b9da0dd421d8420d023803a6935127650bc6f27f
[INFO] running `Command { std: "docker" "start" "-a" "04ce726987962ff54e7c2ee0b9da0dd421d8420d023803a6935127650bc6f27f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]    Compiling cc v1.0.37
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]     Checking cfg-if v0.1.9
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling pkg-config v0.3.14
[INFO] [stderr]    Compiling glob v0.2.11
[INFO] [stderr]    Compiling quick-error v1.2.2
[INFO] [stderr]    Compiling syn v0.15.39
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.6
[INFO] [stderr]    Compiling log v0.4.7
[INFO] [stderr]    Compiling arrayvec v0.4.11
[INFO] [stderr]    Compiling unicode-width v0.1.5
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling regex-syntax v0.6.12
[INFO] [stderr]    Compiling bindgen v0.51.1
[INFO] [stderr]    Compiling semver v0.1.20
[INFO] [stderr]     Checking nodrop v0.1.13
[INFO] [stderr]    Compiling termcolor v1.0.5
[INFO] [stderr]    Compiling ansi_term v0.11.0
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[INFO] [stderr]    Compiling vec_map v0.8.1
[INFO] [stderr]     Checking matches v0.1.8
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[INFO] [stderr]     Checking itertools v0.8.0
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[INFO] [stderr]    Compiling rustc_version v0.2.3
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[INFO] [stderr]    Compiling rustc-hash v1.0.1
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]    Compiling lzma-sys v0.1.14
[INFO] [stderr]    Compiling bzip2-sys v0.1.7
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling atty v0.2.13
[INFO] [stderr]    Compiling which v3.1.0
[INFO] [stderr]    Compiling memoffset v0.5.1
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]     Checking num_cpus v1.10.1
[INFO] [stderr]     Checking crossbeam-epoch v0.7.2
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]    Compiling cexpr v0.3.5
[INFO] [stderr]     Checking crossbeam-deque v0.6.3
[INFO] [stderr]     Checking backtrace v0.3.40
[INFO] [stderr]     Checking url v2.1.0
[INFO] [stderr]     Checking regex v1.3.1
[INFO] [stderr]     Checking rayon v1.1.0
[INFO] [stderr]    Compiling env_logger v0.6.2
[INFO] [stderr]    Compiling serde_derive v1.0.97
[INFO] [stderr]    Compiling snafu-derive v0.5.0
[INFO] [stderr]     Checking snafu v0.5.0
[INFO] [stderr]    Compiling rust-htslib v0.26.0
[INFO] [stderr]     Checking bio-types v0.5.1
[INFO] [stderr]     Checking rumi v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:543:5
[INFO] [stdout]     |
[INFO] [stdout] 543 |     &graph_indicies.sort_by(|&a, &b| graph[b].freq.freq.cmp(&graph[a].freq.freq));
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 543 |     let _ = &graph_indicies.sort_by(|&a, &b| graph[b].freq.freq.cmp(&graph[a].freq.freq));
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:543:5
[INFO] [stdout]     |
[INFO] [stdout] 543 |     &graph_indicies.sort_by(|&a, &b| graph[b].freq.freq.cmp(&graph[a].freq.freq));
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 543 |     let _ = &graph_indicies.sort_by(|&a, &b| graph[b].freq.freq.cmp(&graph[a].freq.freq));
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 36.38s
[INFO] running `Command { std: "docker" "inspect" "04ce726987962ff54e7c2ee0b9da0dd421d8420d023803a6935127650bc6f27f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04ce726987962ff54e7c2ee0b9da0dd421d8420d023803a6935127650bc6f27f", kill_on_drop: false }`
[INFO] [stdout] 04ce726987962ff54e7c2ee0b9da0dd421d8420d023803a6935127650bc6f27f