[INFO] fetching crate pknames_core 0.1.1...
[INFO] checking pknames_core-0.1.1 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930
[INFO] extracting crate pknames_core 0.1.1 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate pknames_core 0.1.1 on toolchain c387b04bf028733cd561d62128c8a5eee4bc1458
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate pknames_core 0.1.1
[INFO] finished tweaking crates.io crate pknames_core 0.1.1
[INFO] tweaked toml for crates.io crate pknames_core 0.1.1 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 196 packages to latest compatible versions
[INFO] [stderr]       Adding burn v0.10.0 (available: v0.14.0)
[INFO] [stderr]       Adding burn-autodiff v0.10.0 (available: v0.14.0)
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[INFO] [stderr]       Adding burn-core v0.10.0 (available: v0.14.0)
[INFO] [stderr]       Adding burn-dataset v0.10.0 (available: v0.14.0)
[INFO] [stderr]       Adding burn-derive v0.10.0 (available: v0.14.0)
[INFO] [stderr]       Adding burn-ndarray v0.10.0 (available: v0.14.0)
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[INFO] [stderr]       Adding ndarray v0.15.6 (available: v0.16.1)
[INFO] [stderr]       Adding nu-ansi-term v0.46.0 (available: v0.50.1)
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[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (available: v0.13.2+wasi-0.2.1)
[INFO] [stderr]       Adding windows-sys v0.48.0 (available: v0.59.0)
[INFO] [stderr]       Adding windows-sys v0.52.0 (available: v0.59.0)
[INFO] [stderr]       Adding windows-targets v0.48.5 (available: v0.52.6)
[INFO] [stderr]       Adding windows_aarch64_gnullvm v0.48.5 (available: v0.52.6)
[INFO] [stderr]       Adding windows_aarch64_msvc v0.48.5 (available: v0.52.6)
[INFO] [stderr]       Adding windows_i686_gnu v0.48.5 (available: v0.52.6)
[INFO] [stderr]       Adding windows_i686_msvc v0.48.5 (available: v0.52.6)
[INFO] [stderr]       Adding windows_x86_64_gnu v0.48.5 (available: v0.52.6)
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[INFO] [stderr]       Adding windows_x86_64_msvc v0.48.5 (available: v0.52.6)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr] `license` should be used if the package license can be expressed with a standard SPDX expression.
[INFO] [stderr] `license-file` should be used if the package uses a non-standard license.
[INFO] [stderr] See https://doc.rust-lang.org/cargo/reference/manifest.html#the-license-and-license-file-fields for more information.
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 76bf5b4acfff3f3cc0488f9cda91cd4b57b7cdc9c676cb90c9290aa4e3411356
[INFO] running `Command { std: "docker" "start" "-a" "76bf5b4acfff3f3cc0488f9cda91cd4b57b7cdc9c676cb90c9290aa4e3411356", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "76bf5b4acfff3f3cc0488f9cda91cd4b57b7cdc9c676cb90c9290aa4e3411356", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76bf5b4acfff3f3cc0488f9cda91cd4b57b7cdc9c676cb90c9290aa4e3411356", kill_on_drop: false }`
[INFO] [stdout] 76bf5b4acfff3f3cc0488f9cda91cd4b57b7cdc9c676cb90c9290aa4e3411356
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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 -Dtail_expr_drop_order" "-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d1377febb6480f6036bf801395cc6338eb1ca27410feedf43b4dca315d142935
[INFO] running `Command { std: "docker" "start" "-a" "d1377febb6480f6036bf801395cc6338eb1ca27410feedf43b4dca315d142935", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr] `license` should be used if the package license can be expressed with a standard SPDX expression.
[INFO] [stderr] `license-file` should be used if the package uses a non-standard license.
[INFO] [stderr] See https://doc.rust-lang.org/cargo/reference/manifest.html#the-license-and-license-file-fields for more information.
[INFO] [stderr]    Compiling libc v0.2.159
[INFO] [stderr]    Compiling libm v0.2.8
[INFO] [stderr]    Compiling num-traits v0.2.19
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[INFO] [stderr]     Checking serde v1.0.210
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[INFO] [stderr]    Compiling matrixmultiply v0.3.9
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[INFO] [stderr]     Checking pknames_core v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function `find_cycles` is never used
[INFO] [stdout]    --> src/pruning/prune_cycles.rs:117:12
[INFO] [stdout]     |
[INFO] [stdout] 40  | impl<'a> CyclePruner<'a> {
[INFO] [stdout]     | ------------------------ associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 117 |     pub fn find_cycles<'b>(graph: &'b WotGraph, me_pubkey: &str) -> HashSet<&'b WotFollow> {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `updated`
[INFO] [stdout]    --> src/prediction/predictor.rs:436:13
[INFO] [stdout]     |
[INFO] [stdout] 436 |         let updated: WotGraph = predictor.into();
[INFO] [stdout]     |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_updated`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `res`
[INFO] [stdout]    --> src/config_directory/dirs/static_lists_directory.rs:172:13
[INFO] [stdout]     |
[INFO] [stdout] 172 |         let res = config.create_if_it_does_not_exist("test").unwrap();
[INFO] [stdout]     |             ^^^ help: if this is intentional, prefix it with an underscore: `_res`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 50.11s
[INFO] running `Command { std: "docker" "inspect" "d1377febb6480f6036bf801395cc6338eb1ca27410feedf43b4dca315d142935", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1377febb6480f6036bf801395cc6338eb1ca27410feedf43b4dca315d142935", kill_on_drop: false }`
[INFO] [stdout] d1377febb6480f6036bf801395cc6338eb1ca27410feedf43b4dca315d142935