[INFO] fetching crate causal-hub 0.1.2...
[INFO] checking causal-hub-0.1.2 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate causal-hub 0.1.2 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate causal-hub 0.1.2 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-3-tc1/source/.cargo/config.toml
[INFO] started tweaking crates.io crate causal-hub 0.1.2
[INFO] finished tweaking crates.io crate causal-hub 0.1.2
[INFO] tweaked toml for crates.io crate causal-hub 0.1.2 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stderr]     Updating crates.io index
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[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 437f17e833654abcd9faf181bdf57b75cb5bffd7094d5887b3a1489a93524fcc
[INFO] running `Command { std: "docker" "start" "-a" "437f17e833654abcd9faf181bdf57b75cb5bffd7094d5887b3a1489a93524fcc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "437f17e833654abcd9faf181bdf57b75cb5bffd7094d5887b3a1489a93524fcc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "437f17e833654abcd9faf181bdf57b75cb5bffd7094d5887b3a1489a93524fcc", kill_on_drop: false }`
[INFO] [stdout] 437f17e833654abcd9faf181bdf57b75cb5bffd7094d5887b3a1489a93524fcc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2dddfb4ce9579a672df196a474eaf62c4ba10fed27848f52fbc4f4a9ac08bdad
[INFO] running `Command { std: "docker" "start" "-a" "2dddfb4ce9579a672df196a474eaf62c4ba10fed27848f52fbc4f4a9ac08bdad", kill_on_drop: false }`
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[INFO] [stderr]     Checking lax v0.16.0
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[INFO] [stderr]     Checking polars-core v0.27.2
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[INFO] [stderr]     Checking polars-ops v0.27.2
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[INFO] [stderr]     Checking causal-hub v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Vec` is imported redundantly
[INFO] [stdout]  --> src/graphs/algorithms/traversal/depth_first_search.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     vec::Vec,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:144:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Vec` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Vec` is imported redundantly
[INFO] [stdout]  --> src/graphs/algorithms/traversal/depth_first_search.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     vec::Vec,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:144:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Vec` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[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` profile [unoptimized + debuginfo] target(s) in 44.38s
[INFO] running `Command { std: "docker" "inspect" "2dddfb4ce9579a672df196a474eaf62c4ba10fed27848f52fbc4f4a9ac08bdad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2dddfb4ce9579a672df196a474eaf62c4ba10fed27848f52fbc4f4a9ac08bdad", kill_on_drop: false }`
[INFO] [stdout] 2dddfb4ce9579a672df196a474eaf62c4ba10fed27848f52fbc4f4a9ac08bdad
[INFO] checking causal-hub-0.1.2 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate causal-hub 0.1.2 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate causal-hub 0.1.2 on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-3-tc2/source/.cargo/config.toml
[INFO] started tweaking crates.io crate causal-hub 0.1.2
[INFO] finished tweaking crates.io crate causal-hub 0.1.2
[INFO] tweaked toml for crates.io crate causal-hub 0.1.2 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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2b972673f32e55996057a5f48361a2a1b94514a8edd22e125706af40ff06677b
[INFO] running `Command { std: "docker" "start" "-a" "2b972673f32e55996057a5f48361a2a1b94514a8edd22e125706af40ff06677b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2b972673f32e55996057a5f48361a2a1b94514a8edd22e125706af40ff06677b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b972673f32e55996057a5f48361a2a1b94514a8edd22e125706af40ff06677b", kill_on_drop: false }`
[INFO] [stdout] 2b972673f32e55996057a5f48361a2a1b94514a8edd22e125706af40ff06677b
[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" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d30f1ff646962e78c6320ab31be87866b015e94d91ffe783a4f0949e7027d9c6
[INFO] running `Command { std: "docker" "start" "-a" "d30f1ff646962e78c6320ab31be87866b015e94d91ffe783a4f0949e7027d9c6", kill_on_drop: false }`
[INFO] [stderr]    Compiling libm v0.2.8
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[INFO] [stderr]    Compiling num-traits v0.2.18
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[INFO] [stderr]     Checking rawpointer v0.2.1
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[INFO] [stderr]    Compiling thiserror-impl v1.0.58
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[INFO] [stderr]     Checking rayon v1.10.0
[INFO] [stderr]    Compiling signal-hook v0.3.17
[INFO] [stderr]    Compiling zstd-safe v5.0.2+zstd.1.5.2
[INFO] [stderr]     Checking cblas-sys v0.1.4
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[INFO] [stderr]     Checking zstd v0.11.2+zstd.1.5.2
[INFO] [stderr]    Compiling smartstring v1.0.1
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[INFO] [stderr]    Compiling foreign-types-shared v0.1.1
[INFO] [stderr]     Checking ethnum v1.5.0
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[INFO] [stderr]     Checking hash_hasher v2.0.3
[INFO] [stderr]     Checking lexical-parse-float v0.8.5
[INFO] [stderr]     Checking foreign_vec v0.1.0
[INFO] [stderr]    Compiling openssl v0.10.64
[INFO] [stderr]    Compiling crc32fast v1.4.0
[INFO] [stderr]    Compiling foreign-types v0.3.2
[INFO] [stderr]     Checking sysinfo v0.27.8
[INFO] [stderr]     Checking strum v0.24.1
[INFO] [stderr]     Checking signal-hook-mio v0.2.3
[INFO] [stderr]    Compiling rustls-pki-types v1.4.1
[INFO] [stderr]    Compiling openssl-probe v0.1.5
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[INFO] [stderr]    Compiling base64 v0.21.7
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[INFO] [stderr]    Compiling miniz_oxide v0.7.2
[INFO] [stderr]    Compiling native-tls v0.2.11
[INFO] [stderr]     Checking xxhash-rust v0.8.10
[INFO] [stderr]    Compiling rustls-pemfile v2.1.1
[INFO] [stderr]    Compiling filetime v0.2.23
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking approx v0.5.1
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[INFO] [stderr]     Checking lexical-core v0.8.5
[INFO] [stderr]     Checking chrono v0.4.37
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[INFO] [stderr]    Compiling rustls-native-certs v0.7.0
[INFO] [stderr]    Compiling dirs-sys v0.3.7
[INFO] [stderr]     Checking lexical v6.1.1
[INFO] [stderr]     Checking bytemuck v1.15.0
[INFO] [stderr]     Checking num-iter v0.1.44
[INFO] [stderr]    Compiling dirs v3.0.2
[INFO] [stderr]     Checking thiserror v1.0.58
[INFO] [stderr]     Checking memmap2 v0.5.10
[INFO] [stderr]     Checking safe_arch v0.7.1
[INFO] [stderr]     Checking dirs v4.0.0
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling memchr v2.7.2
[INFO] [stderr]    Compiling ucd-trie v0.1.6
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[INFO] [stderr]     Checking crossbeam-channel v0.5.12
[INFO] [stderr]     Checking hashbrown v0.13.2
[INFO] [stderr]     Checking polars-utils v0.27.2
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[INFO] [stderr]     Checking env_filter v0.1.0
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[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking alga v0.9.3
[INFO] [stderr]     Checking now v0.1.3
[INFO] [stderr]     Checking env_logger v0.11.3
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[INFO] [stderr]     Checking rand_xoshiro v0.6.0
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[INFO] [stderr]     Checking page_size v0.5.0
[INFO] [stderr]     Checking is_sorted v0.1.1
[INFO] [stderr]     Checking env_logger v0.10.2
[INFO] [stderr]     Checking num-complex v0.4.5
[INFO] [stderr]     Checking arrow-format v0.8.1
[INFO] [stderr]     Checking bimap v0.6.3
[INFO] [stderr]     Checking test-log v0.2.15
[INFO] [stderr]     Checking serde_json v1.0.115
[INFO] [stderr]    Compiling xattr v1.3.1
[INFO] [stderr]     Checking ndarray v0.15.6
[INFO] [stderr]     Checking num v0.4.1
[INFO] [stderr]    Compiling tar v0.4.40
[INFO] [stderr]     Checking cauchy v0.4.0
[INFO] [stderr]    Compiling pest_meta v2.7.9
[INFO] [stderr]     Checking simba v0.6.0
[INFO] [stderr]    Compiling pest_generator v2.7.9
[INFO] [stderr]    Compiling multiversion-macros v0.6.1
[INFO] [stderr]    Compiling strum_macros v0.24.3
[INFO] [stderr]    Compiling nalgebra-macros v0.1.0
[INFO] [stderr]    Compiling katexit v0.1.4
[INFO] [stderr]    Compiling pest_derive v2.7.9
[INFO] [stderr]     Checking multiversion v0.6.1
[INFO] [stderr]    Compiling ureq v2.9.6
[INFO] [stderr]     Checking comfy-table v6.2.0
[INFO] [stderr]    Compiling openblas-build v0.10.9
[INFO] [stderr]    Compiling openblas-src v0.10.9
[INFO] [stderr]     Checking ndarray-stats v0.5.1
[INFO] [stderr]     Checking sprs v0.11.1
[INFO] [stderr]     Checking lax v0.16.0
[INFO] [stderr]     Checking ndarray-linalg v0.16.0
[INFO] [stderr]     Checking lz4 v1.24.0
[INFO] [stderr]     Checking nalgebra v0.29.0
[INFO] [stderr]     Checking polars-arrow v0.27.2
[INFO] [stderr]     Checking polars-core v0.27.2
[INFO] [stderr]     Checking statrs v0.16.0
[INFO] [stderr]     Checking polars-ops v0.27.2
[INFO] [stderr]     Checking polars-time v0.27.2
[INFO] [stderr]     Checking polars-io v0.27.2
[INFO] [stderr]     Checking polars-plan v0.27.2
[INFO] [stderr]     Checking polars-pipe v0.27.2
[INFO] [stderr]     Checking polars-lazy v0.27.2
[INFO] [stderr]     Checking causal-hub v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Vec` is imported redundantly
[INFO] [stdout]  --> src/graphs/algorithms/traversal/depth_first_search.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     vec::Vec,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]  --> /rustc/645bb72776a6a56a1a8f52631a44bd082b2ba509/library/std/src/prelude/mod.rs:144:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Vec` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Vec` is imported redundantly
[INFO] [stdout]  --> src/graphs/algorithms/traversal/depth_first_search.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     vec::Vec,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]  --> /rustc/645bb72776a6a56a1a8f52631a44bd082b2ba509/library/std/src/prelude/mod.rs:144:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Vec` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[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` profile [unoptimized + debuginfo] target(s) in 45.47s
[INFO] running `Command { std: "docker" "inspect" "d30f1ff646962e78c6320ab31be87866b015e94d91ffe783a4f0949e7027d9c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d30f1ff646962e78c6320ab31be87866b015e94d91ffe783a4f0949e7027d9c6", kill_on_drop: false }`
[INFO] [stdout] d30f1ff646962e78c6320ab31be87866b015e94d91ffe783a4f0949e7027d9c6