[INFO] fetching crate ruranges-core 0.1.3...
[INFO] checking ruranges-core-0.1.3 against master#bbe853615821442ef11d6cd42a30a73432b38d89 for pr-154205
[INFO] extracting crate ruranges-core 0.1.3 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate ruranges-core 0.1.3
[INFO] finished tweaking crates.io crate ruranges-core 0.1.3
[INFO] tweaked toml for crates.io crate ruranges-core 0.1.3 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate ruranges-core 0.1.3 on toolchain bbe853615821442ef11d6cd42a30a73432b38d89
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bbe853615821442ef11d6cd42a30a73432b38d89" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bbe853615821442ef11d6cd42a30a73432b38d89" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 4 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bbe853615821442ef11d6cd42a30a73432b38d89" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded radsort v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+bbe853615821442ef11d6cd42a30a73432b38d89" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ab2cf3367a7f402596958f58137390e185feefcf6994f435a87497c9a3877c71
[INFO] running `Command { std: "docker" "start" "-a" "ab2cf3367a7f402596958f58137390e185feefcf6994f435a87497c9a3877c71", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ab2cf3367a7f402596958f58137390e185feefcf6994f435a87497c9a3877c71", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab2cf3367a7f402596958f58137390e185feefcf6994f435a87497c9a3877c71", kill_on_drop: false }`
[INFO] [stdout] ab2cf3367a7f402596958f58137390e185feefcf6994f435a87497c9a3877c71
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+bbe853615821442ef11d6cd42a30a73432b38d89" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9662eacefe6f1c1b71fe6ab71d97f4731c7907add27a253a4905b98dae1eb12c
[INFO] running `Command { std: "docker" "start" "-a" "9662eacefe6f1c1b71fe6ab71d97f4731c7907add27a253a4905b98dae1eb12c", kill_on_drop: false }`
[INFO] [stderr]     Checking radsort v0.1.1
[INFO] [stderr]     Checking rustc-hash v2.1.1
[INFO] [stderr]     Checking ruranges-core v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/outside_bounds.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `PrimInt` and `Signed`
[INFO] [stdout]  --> src/subtract.rs:1:18
[INFO] [stdout]   |
[INFO] [stdout] 1 | use num_traits::{PrimInt, Signed, Zero};
[INFO] [stdout]   |                  ^^^^^^^  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::hash::Hash`
[INFO] [stdout]  --> src/subtract.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::hash::Hash;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Interval` and `MinEvent`
[INFO] [stdout]  --> src/subtract.rs:7:35
[INFO] [stdout]   |
[INFO] [stdout] 7 |     ruranges_structs::{GroupType, Interval, MinEvent, MinInterval, PositionType},
[INFO] [stdout]   |                                   ^^^^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/outside_bounds.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `PrimInt` and `Signed`
[INFO] [stdout]  --> src/subtract.rs:1:18
[INFO] [stdout]   |
[INFO] [stdout] 1 | use num_traits::{PrimInt, Signed, Zero};
[INFO] [stdout]   |                  ^^^^^^^  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::hash::Hash`
[INFO] [stdout]  --> src/subtract.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::hash::Hash;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Interval` and `MinEvent`
[INFO] [stdout]  --> src/subtract.rs:7:35
[INFO] [stdout]   |
[INFO] [stdout] 7 |     ruranges_structs::{GroupType, Interval, MinEvent, MinInterval, PositionType},
[INFO] [stdout]   |                                   ^^^^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Zero`
[INFO] [stdout]  --> src/subtract.rs:1:35
[INFO] [stdout]   |
[INFO] [stdout] 1 | use num_traits::{PrimInt, Signed, Zero};
[INFO] [stdout]   |                                   ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Zero`
[INFO] [stdout]  --> src/subtract.rs:1:35
[INFO] [stdout]   |
[INFO] [stdout] 1 | use num_traits::{PrimInt, Signed, Zero};
[INFO] [stdout]   |                                   ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/spliced_subsequence.rs:73:9
[INFO] [stdout]    |
[INFO] [stdout] 73 |     let mut intervals =
[INFO] [stdout]    |         ----^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/spliced_subsequence.rs:260:9
[INFO] [stdout]     |
[INFO] [stdout] 260 |     let mut intervals =
[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/spliced_subsequence.rs:73:9
[INFO] [stdout]    |
[INFO] [stdout] 73 |     let mut intervals =
[INFO] [stdout]    |         ----^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/spliced_subsequence.rs:260:9
[INFO] [stdout]     |
[INFO] [stdout] 260 |     let mut intervals =
[INFO] [stdout]     |         ----^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check_ext_options` is never used
[INFO] [stdout]  --> src/extend.rs:5:4
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn check_ext_options<T: PositionType>(
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `check_ext_options` is never used
[INFO] [stdout]  --> src/extend.rs:5:4
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn check_ext_options<T: PositionType>(
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.85s
[INFO] running `Command { std: "docker" "inspect" "9662eacefe6f1c1b71fe6ab71d97f4731c7907add27a253a4905b98dae1eb12c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9662eacefe6f1c1b71fe6ab71d97f4731c7907add27a253a4905b98dae1eb12c", kill_on_drop: false }`
[INFO] [stdout] 9662eacefe6f1c1b71fe6ab71d97f4731c7907add27a253a4905b98dae1eb12c