[INFO] fetching crate mofurun 0.3.0...
[INFO] checking mofurun-0.3.0 against master#a874956d940ecb3ed524b6176a171219ac4787ea for pr-76104
[INFO] extracting crate mofurun 0.3.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate mofurun 0.3.0 on toolchain a874956d940ecb3ed524b6176a171219ac4787ea
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a874956d940ecb3ed524b6176a171219ac4787ea" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mofurun 0.3.0
[INFO] finished tweaking crates.io crate mofurun 0.3.0
[INFO] tweaked toml for crates.io crate mofurun 0.3.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a874956d940ecb3ed524b6176a171219ac4787ea" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a874956d940ecb3ed524b6176a171219ac4787ea" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+a874956d940ecb3ed524b6176a171219ac4787ea" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7ccb13e880b6a330084d5356a8d3fdb68165c83236ecfcadbcf4552b12b82276
[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" "7ccb13e880b6a330084d5356a8d3fdb68165c83236ecfcadbcf4552b12b82276", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7ccb13e880b6a330084d5356a8d3fdb68165c83236ecfcadbcf4552b12b82276", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ccb13e880b6a330084d5356a8d3fdb68165c83236ecfcadbcf4552b12b82276", kill_on_drop: false }`
[INFO] [stdout] 7ccb13e880b6a330084d5356a8d3fdb68165c83236ecfcadbcf4552b12b82276
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+a874956d940ecb3ed524b6176a171219ac4787ea" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d6c37d590586b792523a77b0793d7dd169e8dc910113bbdb6502e76cbadeec6f
[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" "d6c37d590586b792523a77b0793d7dd169e8dc910113bbdb6502e76cbadeec6f", kill_on_drop: false }`
[INFO] [stderr]     Checking mofurun v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::cmp::Ordering`
[INFO] [stdout]  --> src/sorted_vec.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::cmp::Ordering;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::iter::StepBy`
[INFO] [stdout]  --> src/sorted_vec.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::iter::StepBy;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cmp::Ordering`
[INFO] [stdout]  --> src/unsorted_vec.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::cmp::Ordering;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Chain`, `Cloned`, `Copied`, `Cycle`, `Enumerate`, `FilterMap`, `Filter`, `FlatMap`, `Flatten`, `FromIterator`, `Fuse`, `Inspect`, `Map`, `Peekable`, `Product`, `Rev`, `Scan`, `SkipWhile`, `Skip`, `StepBy`, `Sum`, `TakeWhile`, `Take`
[INFO] [stdout]  --> src/unsorted_vec.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     Chain, Cloned, Copied, Cycle, Enumerate, Filter, FilterMap, FlatMap, Flatten, FromIterator,
[INFO] [stdout]   |     ^^^^^  ^^^^^^  ^^^^^^  ^^^^^  ^^^^^^^^^  ^^^^^^  ^^^^^^^^^  ^^^^^^^  ^^^^^^^  ^^^^^^^^^^^^
[INFO] [stdout] 5 |     Fuse, Inspect, Map, Peekable, Product, Rev, Scan, Skip, SkipWhile, StepBy, Sum, Take,
[INFO] [stdout]   |     ^^^^  ^^^^^^^  ^^^  ^^^^^^^^  ^^^^^^^  ^^^  ^^^^  ^^^^  ^^^^^^^^^  ^^^^^^  ^^^  ^^^^
[INFO] [stdout] 6 |     TakeWhile,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cmp::Ordering`
[INFO] [stdout]  --> src/sorted_vec.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::cmp::Ordering;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::iter::StepBy`
[INFO] [stdout]  --> src/sorted_vec.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::iter::StepBy;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cmp::Ordering`
[INFO] [stdout]  --> src/unsorted_vec.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::cmp::Ordering;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Chain`, `Cloned`, `Copied`, `Cycle`, `Enumerate`, `FilterMap`, `Filter`, `FlatMap`, `Flatten`, `FromIterator`, `Fuse`, `Inspect`, `Map`, `Peekable`, `Product`, `Rev`, `Scan`, `SkipWhile`, `Skip`, `StepBy`, `Sum`, `TakeWhile`, `Take`
[INFO] [stdout]  --> src/unsorted_vec.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     Chain, Cloned, Copied, Cycle, Enumerate, Filter, FilterMap, FlatMap, Flatten, FromIterator,
[INFO] [stdout]   |     ^^^^^  ^^^^^^  ^^^^^^  ^^^^^  ^^^^^^^^^  ^^^^^^  ^^^^^^^^^  ^^^^^^^  ^^^^^^^  ^^^^^^^^^^^^
[INFO] [stdout] 5 |     Fuse, Inspect, Map, Peekable, Product, Rev, Scan, Skip, SkipWhile, StepBy, Sum, Take,
[INFO] [stdout]   |     ^^^^  ^^^^^^^  ^^^  ^^^^^^^^  ^^^^^^^  ^^^  ^^^^  ^^^^  ^^^^^^^^^  ^^^^^^  ^^^  ^^^^
[INFO] [stdout] 6 |     TakeWhile,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.03s
[INFO] running `Command { std: "docker" "inspect" "d6c37d590586b792523a77b0793d7dd169e8dc910113bbdb6502e76cbadeec6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d6c37d590586b792523a77b0793d7dd169e8dc910113bbdb6502e76cbadeec6f", kill_on_drop: false }`
[INFO] [stdout] d6c37d590586b792523a77b0793d7dd169e8dc910113bbdb6502e76cbadeec6f