[INFO] fetching crate tc-fs 0.2.0...
[INFO] checking tc-fs-0.2.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate tc-fs 0.2.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate tc-fs 0.2.0 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] started tweaking crates.io crate tc-fs 0.2.0
[INFO] finished tweaking crates.io crate tc-fs 0.2.0
[INFO] tweaked toml for crates.io crate tc-fs 0.2.0 written to /workspace/builds/worker-4-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 }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 179 packages
[INFO] [stderr]       Adding attribute-derive v0.6.1 (latest: v0.9.1)
[INFO] [stderr]       Adding attribute-derive-macro v0.6.1 (latest: v0.9.1)
[INFO] [stderr]       Adding base64 v0.13.1 (latest: v0.22.0)
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[INFO] [stderr]       Adding block-buffer v0.9.0 (latest: v0.10.4)
[INFO] [stderr]       Adding convert_case v0.4.0 (latest: v0.6.0)
[INFO] [stderr]       Adding curve25519-dalek v3.2.1 (latest: v4.1.2)
[INFO] [stderr]       Adding digest v0.9.0 (latest: v0.10.7)
[INFO] [stderr]       Adding ed25519 v1.5.3 (latest: v2.2.3)
[INFO] [stderr]       Adding ed25519-dalek v1.0.1 (latest: v2.1.1)
[INFO] [stderr]       Adding generic-array v0.14.7 (latest: v1.0.0)
[INFO] [stderr]       Adding getrandom v0.1.16 (latest: v0.2.12)
[INFO] [stderr]       Adding ha-ndarray v0.2.0 (latest: v0.3.1)
[INFO] [stderr]       Adding handlebars v4.5.0 (latest: v5.1.2)
[INFO] [stderr]       Adding itertools v0.11.0 (latest: v0.12.1)
[INFO] [stderr]       Adding object v0.32.2 (latest: v0.34.0)
[INFO] [stderr]       Adding proc-macro-utils v0.8.0 (latest: v0.9.1)
[INFO] [stderr]       Adding quick-xml v0.18.1 (latest: v0.31.0)
[INFO] [stderr]       Adding quote-use v0.7.2 (latest: v0.8.0)
[INFO] [stderr]       Adding quote-use-macros v0.7.2 (latest: v0.8.0)
[INFO] [stderr]       Adding rand v0.7.3 (latest: v0.8.5)
[INFO] [stderr]       Adding rand_chacha v0.2.2 (latest: v0.3.1)
[INFO] [stderr]       Adding rand_core v0.5.1 (latest: v0.6.4)
[INFO] [stderr]       Adding rand_hc v0.2.0 (latest: v0.3.2)
[INFO] [stderr]       Adding rjwt v0.4.1 (latest: v0.5.0)
[INFO] [stderr]       Adding sha2 v0.9.9 (latest: v0.10.8)
[INFO] [stderr]       Adding signature v1.6.4 (latest: v2.2.0)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.58)
[INFO] [stderr]       Adding tc-chain v0.2.0 (latest: v0.4.0)
[INFO] [stderr]       Adding tc-collection v0.2.0 (latest: v0.4.0)
[INFO] [stderr]       Adding tc-error v0.9.0 (latest: v0.11.0)
[INFO] [stderr]       Adding tc-scalar v0.2.0 (latest: v0.4.0)
[INFO] [stderr]       Adding tc-transact v0.18.0 (latest: v0.20.0)
[INFO] [stderr]       Adding tc-value v0.10.0 (latest: v0.12.0)
[INFO] [stderr]       Adding tcgeneric v0.8.1 (latest: v0.10.0)
[INFO] [stderr]       Adding txfs v0.2.1 (latest: v0.3.0)
[INFO] [stderr]       Adding txn_lock v0.8.1 (latest: v0.9.0)
[INFO] [stderr]       Adding wasi v0.9.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[INFO] [stderr]       Adding windows-sys v0.48.0 (latest: v0.52.0)
[INFO] [stderr]       Adding windows-targets v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_aarch64_gnullvm v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_aarch64_msvc v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_i686_gnu v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_i686_msvc v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_x86_64_gnu v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_x86_64_gnullvm v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_x86_64_msvc v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding zeroize v1.3.0 (latest: v1.7.0)
[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 }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tc-error v0.9.0
[INFO] [stderr]   Downloaded async-hash v0.5.3
[INFO] [stderr]   Downloaded hr-id v0.5.1
[INFO] [stderr]   Downloaded tcgeneric v0.8.1
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[INFO] [stderr]   Downloaded email-address-parser v2.0.0
[INFO] [stderr]   Downloaded tc-scalar v0.2.0
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[INFO] [stderr]   Downloaded tc-chain v0.2.0
[INFO] [stderr]   Downloaded b-table v0.2.1
[INFO] [stderr]   Downloaded tc-collection v0.2.0
[INFO] [stderr]   Downloaded number-general v0.11.1
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[INFO] [stderr]   Downloaded tbon v0.5.2
[INFO] [stderr]   Downloaded freqfs v0.9.1
[INFO] [stderr]   Downloaded txfs v0.2.1
[INFO] [stderr]   Downloaded collate v0.4.1
[INFO] [stderr]   Downloaded interpolator v0.5.0
[INFO] [stderr]   Downloaded quote-use v0.7.2
[INFO] [stderr]   Downloaded ds-ext v0.1.7
[INFO] [stderr]   Downloaded tc-value v0.10.0
[INFO] [stderr]   Downloaded ha-ndarray v0.2.0
[INFO] [stderr]   Downloaded collection_literals v1.0.1
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[INFO] [stderr]   Downloaded attribute-derive-macro v0.6.1
[INFO] [stderr]   Downloaded tc-transact v0.18.0
[INFO] [stderr]   Downloaded derive-where v1.2.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 358456674e7f6006fc38bdfd679bb9cce271bdd7a523ea45505d0dd999017dfc
[INFO] running `Command { std: "docker" "start" "-a" "358456674e7f6006fc38bdfd679bb9cce271bdd7a523ea45505d0dd999017dfc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "358456674e7f6006fc38bdfd679bb9cce271bdd7a523ea45505d0dd999017dfc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "358456674e7f6006fc38bdfd679bb9cce271bdd7a523ea45505d0dd999017dfc", kill_on_drop: false }`
[INFO] [stdout] 358456674e7f6006fc38bdfd679bb9cce271bdd7a523ea45505d0dd999017dfc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] e9f0d7b19cf6e33d2b62ebdd7d24c2d5b9fa65641315f1af5dab8f8812e566c5
[INFO] running `Command { std: "docker" "start" "-a" "e9f0d7b19cf6e33d2b62ebdd7d24c2d5b9fa65641315f1af5dab8f8812e566c5", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]     Checking futures-channel v0.3.30
[INFO] [stderr]    Compiling smallvec v1.13.2
[INFO] [stderr]    Compiling collection_literals v1.0.1
[INFO] [stderr]    Compiling interpolator v0.5.0
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]     Checking get-size v0.1.4
[INFO] [stderr]    Compiling convert_case v0.4.0
[INFO] [stderr]    Compiling derive-where v1.2.7
[INFO] [stderr]     Checking safecast v0.2.2
[INFO] [stderr]     Checking mio v0.8.11
[INFO] [stderr]     Checking log v0.4.21
[INFO] [stderr]    Compiling num-derive v0.4.2
[INFO] [stderr]    Compiling thiserror v1.0.58
[INFO] [stderr]    Compiling memchr v2.7.2
[INFO] [stderr]    Compiling ucd-trie v0.1.6
[INFO] [stderr]    Compiling ha-ndarray v0.2.0
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking uuid v1.8.0
[INFO] [stderr]    Compiling proc-macro-utils v0.8.0
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking tokio v1.37.0
[INFO] [stderr]     Checking strength_reduce v0.2.4
[INFO] [stderr]     Checking url v2.5.0
[INFO] [stderr]     Checking num-iter v0.1.44
[INFO] [stderr]     Checking transpose v0.2.3
[INFO] [stderr]     Checking num-complex v0.4.5
[INFO] [stderr]     Checking pest v2.7.9
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]     Checking zeroize v1.3.0
[INFO] [stderr]     Checking block-buffer v0.10.4
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking subtle v2.5.0
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking regex-automata v0.4.6
[INFO] [stderr]     Checking signature v1.6.4
[INFO] [stderr]     Checking sha2 v0.10.8
[INFO] [stderr]     Checking sha2 v0.9.9
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking itertools v0.11.0
[INFO] [stderr]     Checking ed25519 v1.5.3
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking curve25519-dalek v3.2.1
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking num v0.4.1
[INFO] [stderr]    Compiling pest_meta v2.7.9
[INFO] [stderr]     Checking ed25519-dalek v1.0.1
[INFO] [stderr]    Compiling quote-use-macros v0.7.2
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling derive_more v0.99.17
[INFO] [stderr]    Compiling pest_generator v2.7.9
[INFO] [stderr]    Compiling quote-use v0.7.2
[INFO] [stderr]     Checking regex v1.10.4
[INFO] [stderr]    Compiling attribute-derive-macro v0.6.1
[INFO] [stderr]     Checking futures-executor v0.3.30
[INFO] [stderr]     Checking futures v0.3.30
[INFO] [stderr]     Checking destream v0.7.3
[INFO] [stderr]     Checking async-hash v0.5.3
[INFO] [stderr]     Checking collate v0.4.1
[INFO] [stderr]     Checking rjwt v0.4.1
[INFO] [stderr]     Checking tokio-util v0.7.10
[INFO] [stderr]    Compiling pest_derive v2.7.9
[INFO] [stderr]    Compiling attribute-derive v0.6.1
[INFO] [stderr]     Checking email-address-parser v2.0.0
[INFO] [stderr]     Checking handlebars v4.5.0
[INFO] [stderr]    Compiling get-size-derive v0.1.3
[INFO] [stderr]     Checking ds-ext v0.1.7
[INFO] [stderr]     Checking hr-id v0.5.1
[INFO] [stderr]     Checking tbon v0.5.2
[INFO] [stderr]     Checking number-general v0.11.1
[INFO] [stderr]     Checking txn_lock v0.8.1
[INFO] [stderr]     Checking pathlink v0.2.2
[INFO] [stderr]     Checking freqfs v0.9.1
[INFO] [stderr]     Checking txfs v0.2.1
[INFO] [stderr]     Checking b-tree v0.3.1
[INFO] [stderr]     Checking b-table v0.2.1
[INFO] [stderr]     Checking tc-error v0.9.0
[INFO] [stderr]     Checking tcgeneric v0.8.1
[INFO] [stderr]     Checking tc-value v0.10.0
[INFO] [stderr]     Checking tc-transact v0.18.0
[INFO] [stderr]     Checking tc-scalar v0.2.0
[INFO] [stderr]     Checking tc-collection v0.2.0
[INFO] [stderr]     Checking tc-chain v0.2.0
[INFO] [stderr]     Checking tc-fs v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `FromIterator` is imported redundantly
[INFO] [stdout]  --> src/txn/mod.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::iter::FromIterator;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `FromIterator` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `hypothetical::Hypothetical`
[INFO] [stdout]   --> src/txn/mod.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub use hypothetical::Hypothetical;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `TryInto` is imported redundantly
[INFO] [stdout]  --> src/txn/request.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::convert::TryInto;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `TryInto` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `TryFrom` is imported redundantly
[INFO] [stdout]  --> src/txn/server.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::convert::TryFrom;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `TryFrom` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `FromIterator` is imported redundantly
[INFO] [stdout]  --> src/txn/mod.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::iter::FromIterator;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `FromIterator` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `hypothetical::Hypothetical`
[INFO] [stdout]   --> src/txn/mod.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub use hypothetical::Hypothetical;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `TryInto` is imported redundantly
[INFO] [stdout]  --> src/txn/request.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::convert::TryInto;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `TryInto` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `TryFrom` is imported redundantly
[INFO] [stdout]  --> src/txn/server.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::convert::TryFrom;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `TryFrom` is already defined here
[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` profile [unoptimized + debuginfo] target(s) in 1m 04s
[INFO] running `Command { std: "docker" "inspect" "e9f0d7b19cf6e33d2b62ebdd7d24c2d5b9fa65641315f1af5dab8f8812e566c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9f0d7b19cf6e33d2b62ebdd7d24c2d5b9fa65641315f1af5dab8f8812e566c5", kill_on_drop: false }`
[INFO] [stdout] e9f0d7b19cf6e33d2b62ebdd7d24c2d5b9fa65641315f1af5dab8f8812e566c5
[INFO] checking tc-fs-0.2.0 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate tc-fs 0.2.0 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate tc-fs 0.2.0 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] started tweaking crates.io crate tc-fs 0.2.0
[INFO] finished tweaking crates.io crate tc-fs 0.2.0
[INFO] tweaked toml for crates.io crate tc-fs 0.2.0 written to /workspace/builds/worker-4-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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 68f050ec3a73d41a5c4cc2cddb9c8665de5d33cfce79ac8dc103141c68e5e7df
[INFO] running `Command { std: "docker" "start" "-a" "68f050ec3a73d41a5c4cc2cddb9c8665de5d33cfce79ac8dc103141c68e5e7df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "68f050ec3a73d41a5c4cc2cddb9c8665de5d33cfce79ac8dc103141c68e5e7df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68f050ec3a73d41a5c4cc2cddb9c8665de5d33cfce79ac8dc103141c68e5e7df", kill_on_drop: false }`
[INFO] [stdout] 68f050ec3a73d41a5c4cc2cddb9c8665de5d33cfce79ac8dc103141c68e5e7df
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 627ae1b1b8444cfab8444197aeb8b1c947e595689770a4f7d74407f7f7ffcdb6
[INFO] running `Command { std: "docker" "start" "-a" "627ae1b1b8444cfab8444197aeb8b1c947e595689770a4f7d74407f7f7ffcdb6", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]     Checking futures-channel v0.3.30
[INFO] [stderr]    Compiling smallvec v1.13.2
[INFO] [stderr]    Compiling interpolator v0.5.0
[INFO] [stderr]    Compiling collection_literals v1.0.1
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]    Compiling convert_case v0.4.0
[INFO] [stderr]     Checking get-size v0.1.4
[INFO] [stderr]    Compiling derive-where v1.2.7
[INFO] [stderr]     Checking safecast v0.2.2
[INFO] [stderr]     Checking mio v0.8.11
[INFO] [stderr]     Checking log v0.4.21
[INFO] [stderr]    Compiling num-derive v0.4.2
[INFO] [stderr]    Compiling thiserror v1.0.58
[INFO] [stderr]    Compiling ucd-trie v0.1.6
[INFO] [stderr]    Compiling memchr v2.7.2
[INFO] [stderr]     Checking uuid v1.8.0
[INFO] [stderr]    Compiling proc-macro-utils v0.8.0
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]    Compiling ha-ndarray v0.2.0
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking strength_reduce v0.2.4
[INFO] [stderr]     Checking url v2.5.0
[INFO] [stderr]     Checking tokio v1.37.0
[INFO] [stderr]     Checking num-iter v0.1.44
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[INFO] [stderr]     Checking block-buffer v0.9.0
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[INFO] [stderr]     Checking curve25519-dalek v3.2.1
[INFO] [stderr]     Checking sha2 v0.9.9
[INFO] [stderr]     Checking regex-automata v0.4.6
[INFO] [stderr]     Checking sha2 v0.10.8
[INFO] [stderr]    Compiling pest_meta v2.7.9
[INFO] [stderr]    Compiling quote-use-macros v0.7.2
[INFO] [stderr]     Checking ed25519-dalek v1.0.1
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[INFO] [stderr]    Compiling pest_generator v2.7.9
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[INFO] [stderr]    Compiling derive_more v0.99.17
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[INFO] [stderr]    Compiling pest_derive v2.7.9
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[INFO] [stderr]    Compiling attribute-derive v0.6.1
[INFO] [stderr]    Compiling get-size-derive v0.1.3
[INFO] [stderr]     Checking ds-ext v0.1.7
[INFO] [stderr]     Checking hr-id v0.5.1
[INFO] [stderr]     Checking tbon v0.5.2
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[INFO] [stderr]     Checking txn_lock v0.8.1
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[INFO] [stderr]     Checking freqfs v0.9.1
[INFO] [stderr]     Checking txfs v0.2.1
[INFO] [stderr]     Checking b-tree v0.3.1
[INFO] [stderr]     Checking b-table v0.2.1
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[INFO] [stderr]     Checking tcgeneric v0.8.1
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[INFO] [stderr]     Checking tc-fs v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `FromIterator` is imported redundantly
[INFO] [stdout]  --> src/txn/mod.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::iter::FromIterator;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/645bb72776a6a56a1a8f52631a44bd082b2ba509/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `FromIterator` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `hypothetical::Hypothetical`
[INFO] [stdout]   --> src/txn/mod.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub use hypothetical::Hypothetical;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `TryInto` is imported redundantly
[INFO] [stdout]  --> src/txn/request.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::convert::TryInto;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/645bb72776a6a56a1a8f52631a44bd082b2ba509/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `TryInto` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `TryFrom` is imported redundantly
[INFO] [stdout]  --> src/txn/server.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::convert::TryFrom;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/645bb72776a6a56a1a8f52631a44bd082b2ba509/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `TryFrom` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `FromIterator` is imported redundantly
[INFO] [stdout]  --> src/txn/mod.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::iter::FromIterator;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/645bb72776a6a56a1a8f52631a44bd082b2ba509/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `FromIterator` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `hypothetical::Hypothetical`
[INFO] [stdout]   --> src/txn/mod.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub use hypothetical::Hypothetical;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `TryInto` is imported redundantly
[INFO] [stdout]  --> src/txn/request.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::convert::TryInto;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/645bb72776a6a56a1a8f52631a44bd082b2ba509/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `TryInto` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `TryFrom` is imported redundantly
[INFO] [stdout]  --> src/txn/server.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::convert::TryFrom;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/645bb72776a6a56a1a8f52631a44bd082b2ba509/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `TryFrom` is already defined here
[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` profile [unoptimized + debuginfo] target(s) in 1m 08s
[INFO] running `Command { std: "docker" "inspect" "627ae1b1b8444cfab8444197aeb8b1c947e595689770a4f7d74407f7f7ffcdb6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "627ae1b1b8444cfab8444197aeb8b1c947e595689770a4f7d74407f7f7ffcdb6", kill_on_drop: false }`
[INFO] [stdout] 627ae1b1b8444cfab8444197aeb8b1c947e595689770a4f7d74407f7f7ffcdb6