[INFO] fetching crate jump-kun 0.4.9...
[INFO] checking jump-kun-0.4.9 against master#33fdb797f59421c7bbecaa4588ed5d7a31a9494a for pr-87190-3
[INFO] extracting crate jump-kun 0.4.9 into /workspace/builds/worker-106/source
[INFO] validating manifest of crates.io crate jump-kun 0.4.9 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 jump-kun 0.4.9
[INFO] finished tweaking crates.io crate jump-kun 0.4.9
[INFO] tweaked toml for crates.io crate jump-kun 0.4.9 written to /workspace/builds/worker-106/source/Cargo.toml
[INFO] crate crates.io crate jump-kun 0.4.9 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/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] ce10cdea6d3b5c5e253410a8e896f8f39ec66e47951761278928599bbc3796a1
[INFO] running `Command { std: "docker" "start" "-a" "ce10cdea6d3b5c5e253410a8e896f8f39ec66e47951761278928599bbc3796a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ce10cdea6d3b5c5e253410a8e896f8f39ec66e47951761278928599bbc3796a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce10cdea6d3b5c5e253410a8e896f8f39ec66e47951761278928599bbc3796a1", kill_on_drop: false }`
[INFO] [stdout] ce10cdea6d3b5c5e253410a8e896f8f39ec66e47951761278928599bbc3796a1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/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] 5cd13d91daed983b1e7a204a4c188aef74a089621297048920af1d701981536f
[INFO] running `Command { std: "docker" "start" "-a" "5cd13d91daed983b1e7a204a4c188aef74a089621297048920af1d701981536f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling syn v1.0.64
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[INFO] [stderr]    Compiling jump-kun-macros v0.1.11
[INFO] [stderr]     Checking jump-kun v0.4.9 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/structs.rs:113:9
[INFO] [stdout]     |
[INFO] [stdout] 113 | /         &self.map.sort_by(|a, b| {
[INFO] [stdout] 114 | |             a.dirtype
[INFO] [stdout] 115 | |                 .order()
[INFO] [stdout] 116 | |                 .cmp(&b.dirtype.order())
[INFO] [stdout] 117 | |                 .then(a.cd_count.cmp(&b.cd_count).reverse())
[INFO] [stdout] 118 | |         });
[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] 113 |         let _ = &self.map.sort_by(|a, b| {
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/structs.rs:113:9
[INFO] [stdout]     |
[INFO] [stdout] 113 | /         &self.map.sort_by(|a, b| {
[INFO] [stdout] 114 | |             a.dirtype
[INFO] [stdout] 115 | |                 .order()
[INFO] [stdout] 116 | |                 .cmp(&b.dirtype.order())
[INFO] [stdout] 117 | |                 .then(a.cd_count.cmp(&b.cd_count).reverse())
[INFO] [stdout] 118 | |         });
[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] 113 |         let _ = &self.map.sort_by(|a, b| {
[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 38.80s
[INFO] running `Command { std: "docker" "inspect" "5cd13d91daed983b1e7a204a4c188aef74a089621297048920af1d701981536f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5cd13d91daed983b1e7a204a4c188aef74a089621297048920af1d701981536f", kill_on_drop: false }`
[INFO] [stdout] 5cd13d91daed983b1e7a204a4c188aef74a089621297048920af1d701981536f