[INFO] fetching crate jump-kun 0.4.10...
[INFO] checking jump-kun-0.4.10 against try#8de4b308b608cded0ebccf658a0fc719bce87d4e for pr-89056
[INFO] extracting crate jump-kun 0.4.10 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate jump-kun 0.4.10 on toolchain 8de4b308b608cded0ebccf658a0fc719bce87d4e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate jump-kun 0.4.10
[INFO] finished tweaking crates.io crate jump-kun 0.4.10
[INFO] tweaked toml for crates.io crate jump-kun 0.4.10 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate crates.io crate jump-kun 0.4.10 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded jump-kun-macros v0.1.12
[INFO] [stderr]   Downloaded defer-drop v1.2.0
[INFO] [stderr]   Downloaded jwalk v0.6.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f31bc7999f987e47821f3d88d0979e1c10b3d8a745e6423664fccb981b9cd505
[INFO] running `Command { std: "docker" "start" "-a" "f31bc7999f987e47821f3d88d0979e1c10b3d8a745e6423664fccb981b9cd505", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f31bc7999f987e47821f3d88d0979e1c10b3d8a745e6423664fccb981b9cd505", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f31bc7999f987e47821f3d88d0979e1c10b3d8a745e6423664fccb981b9cd505", kill_on_drop: false }`
[INFO] [stdout] f31bc7999f987e47821f3d88d0979e1c10b3d8a745e6423664fccb981b9cd505
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+8de4b308b608cded0ebccf658a0fc719bce87d4e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dad92bc21c2898dc5ac405cb00fc637e5b2540a7cba412fa9cf1016c733cd09d
[INFO] running `Command { std: "docker" "start" "-a" "dad92bc21c2898dc5ac405cb00fc637e5b2540a7cba412fa9cf1016c733cd09d", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling unicode-xid v0.2.2
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[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]    Compiling const_fn v0.4.8
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking either v1.6.1
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[INFO] [stderr]    Compiling time-macros-impl v0.1.2
[INFO] [stderr]    Compiling darling_macro v0.10.2
[INFO] [stderr]     Checking time-macros v0.1.1
[INFO] [stderr]    Compiling darling v0.10.2
[INFO] [stderr]    Compiling derive_builder_core v0.9.0
[INFO] [stderr]    Compiling derive_builder v0.9.0
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[INFO] [stderr]     Checking serde_json v1.0.68
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling jump-kun-macros v0.1.12
[INFO] [stderr]     Checking jump-kun v0.4.10 (/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: 1 warning emitted
[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] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 36.73s
[INFO] running `Command { std: "docker" "inspect" "dad92bc21c2898dc5ac405cb00fc637e5b2540a7cba412fa9cf1016c733cd09d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dad92bc21c2898dc5ac405cb00fc637e5b2540a7cba412fa9cf1016c733cd09d", kill_on_drop: false }`
[INFO] [stdout] dad92bc21c2898dc5ac405cb00fc637e5b2540a7cba412fa9cf1016c733cd09d