[INFO] fetching crate vcsr 0.4.0...
[INFO] checking vcsr-0.4.0 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] extracting crate vcsr 0.4.0 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate vcsr 0.4.0 on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate vcsr 0.4.0
[INFO] finished tweaking crates.io crate vcsr 0.4.0
[INFO] tweaked toml for crates.io crate vcsr 0.4.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate crates.io crate vcsr 0.4.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9152ed562e05231fe1441d37c2ddcc079814dfb7a36662647686b1d672e09a16
[INFO] running `Command { std: "docker" "start" "-a" "9152ed562e05231fe1441d37c2ddcc079814dfb7a36662647686b1d672e09a16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9152ed562e05231fe1441d37c2ddcc079814dfb7a36662647686b1d672e09a16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9152ed562e05231fe1441d37c2ddcc079814dfb7a36662647686b1d672e09a16", kill_on_drop: false }`
[INFO] [stdout] 9152ed562e05231fe1441d37c2ddcc079814dfb7a36662647686b1d672e09a16
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "RUSTDOCFLAGS=--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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 64815bebe6e4bdca6c2b61b90b9ec654e5a9a62396deb5ec7dc63e2b678dc618
[INFO] running `Command { std: "docker" "start" "-a" "64815bebe6e4bdca6c2b61b90b9ec654e5a9a62396deb5ec7dc63e2b678dc618", kill_on_drop: false }`
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[INFO] [stderr]     Checking exitcode v1.1.2
[INFO] [stderr]     Checking console v0.8.0
[INFO] [stderr]     Checking walkdir v2.2.9
[INFO] [stderr]     Checking flexi_logger v0.14.3
[INFO] [stderr]     Checking indicatif v0.11.0
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking jpeg-decoder v0.1.22
[INFO] [stderr]     Checking dotenv v0.14.1
[INFO] [stderr]    Compiling proc-macro-error v0.2.6
[INFO] [stderr]     Checking tiff v0.6.1
[INFO] [stderr]    Compiling palette_derive v0.4.1
[INFO] [stderr]    Compiling serde_derive v1.0.99
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]    Compiling structopt-derive v0.3.0
[INFO] [stderr]     Checking image v0.23.14
[INFO] [stderr]     Checking thiserror v1.0.20
[INFO] [stderr]     Checking structopt v0.3.0
[INFO] [stderr]     Checking imageproc v0.22.0
[INFO] [stderr]     Checking serde_json v1.0.40
[INFO] [stderr]     Checking vcsr v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]    --> src/models.rs:542:31
[INFO] [stdout]     |
[INFO] [stdout] 542 |                 matrix_subset[(length - 1)] / 2.0
[INFO] [stdout]     |                               ^          ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 542 -                 matrix_subset[(length - 1)] / 2.0
[INFO] [stdout] 542 +                 matrix_subset[length - 1] / 2.0
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]    --> src/models.rs:542:31
[INFO] [stdout]     |
[INFO] [stdout] 542 |                 matrix_subset[(length - 1)] / 2.0
[INFO] [stdout]     |                               ^          ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 542 -                 matrix_subset[(length - 1)] / 2.0
[INFO] [stdout] 542 +                 matrix_subset[length - 1] / 2.0
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/operations.rs:124:5
[INFO] [stdout]     |
[INFO] [stdout] 124 |     &time_sorted.sort_by(|a, b| a.timestamp.partial_cmp(&b.timestamp).unwrap());
[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] 124 |     let _ = &time_sorted.sort_by(|a, b| a.timestamp.partial_cmp(&b.timestamp).unwrap());
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/operations.rs:124:5
[INFO] [stdout]     |
[INFO] [stdout] 124 |     &time_sorted.sort_by(|a, b| a.timestamp.partial_cmp(&b.timestamp).unwrap());
[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] 124 |     let _ = &time_sorted.sort_by(|a, b| a.timestamp.partial_cmp(&b.timestamp).unwrap());
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 27.25s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: syn v0.14.9
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "64815bebe6e4bdca6c2b61b90b9ec654e5a9a62396deb5ec7dc63e2b678dc618", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "64815bebe6e4bdca6c2b61b90b9ec654e5a9a62396deb5ec7dc63e2b678dc618", kill_on_drop: false }`
[INFO] [stdout] 64815bebe6e4bdca6c2b61b90b9ec654e5a9a62396deb5ec7dc63e2b678dc618