[INFO] fetching crate zcash_client_backend 0.13.0...
[INFO] checking zcash_client_backend-0.13.0 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930
[INFO] extracting crate zcash_client_backend 0.13.0 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate zcash_client_backend 0.13.0 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 zcash_client_backend 0.13.0
[INFO] finished tweaking crates.io crate zcash_client_backend 0.13.0
[INFO] tweaked toml for crates.io crate zcash_client_backend 0.13.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate crates.io crate zcash_client_backend 0.13.0 already has a lockfile, it will not be regenerated
[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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 4a171d14518f3f543862eaa6fe5934c4ee0d4bdbdd0f5c13b50f7d4ca8a778a8
[INFO] running `Command { std: "docker" "start" "-a" "4a171d14518f3f543862eaa6fe5934c4ee0d4bdbdd0f5c13b50f7d4ca8a778a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4a171d14518f3f543862eaa6fe5934c4ee0d4bdbdd0f5c13b50f7d4ca8a778a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a171d14518f3f543862eaa6fe5934c4ee0d4bdbdd0f5c13b50f7d4ca8a778a8", kill_on_drop: false }`
[INFO] [stdout] 4a171d14518f3f543862eaa6fe5934c4ee0d4bdbdd0f5c13b50f7d4ca8a778a8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 6c11d465f6acb086a50d59a01f53e9b7c4284a45798f18ddfea4a5d0ea406989
[INFO] running `Command { std: "docker" "start" "-a" "6c11d465f6acb086a50d59a01f53e9b7c4284a45798f18ddfea4a5d0ea406989", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.154
[INFO] [stderr]    Compiling version_check v0.9.4
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[INFO] [stderr]     Checking nonempty v0.7.0
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[INFO] [stderr]     Checking zcash_spec v0.1.0
[INFO] [stderr]     Checking group v0.13.0
[INFO] [stderr]     Checking zcash_encoding v0.2.1
[INFO] [stderr]     Checking blake2s_simd v1.0.2
[INFO] [stderr]    Compiling fixedbitset v0.4.2
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[INFO] [stderr]     Checking zcash_address v0.4.0
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[INFO] [stderr]    Compiling zeroize_derive v1.4.2
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
[INFO] [stderr]    Compiling serde_derive v1.0.204
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[INFO] [stderr]    Compiling prost-derive v0.13.1
[INFO] [stderr]     Checking cipher v0.4.4
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[INFO] [stderr]     Checking zcash_note_encryption v0.4.0
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[INFO] [stderr]    Compiling gumdrop_derive v0.8.1
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[INFO] [stderr]    Compiling prost-types v0.13.1
[INFO] [stderr]     Checking gumdrop v0.8.1
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[INFO] [stderr]    Compiling tonic-build v0.12.1
[INFO] [stderr]     Checking halo2_gadgets v0.3.0
[INFO] [stderr]     Checking reddsa v0.5.1
[INFO] [stderr]    Compiling zcash_client_backend v0.13.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking redjubjub v0.7.0
[INFO] [stderr]     Checking sapling-crypto v0.2.0
[INFO] [stderr]     Checking orchard v0.9.0
[INFO] [stderr]     Checking zcash_primitives v0.16.0
[INFO] [stderr]     Checking zcash_keys v0.3.0
[INFO] [stderr]     Checking zcash_proofs v0.16.0
[INFO] [stdout] warning: struct `FullDecryptor` is never constructed
[INFO] [stdout]   --> src/scan.rs:59:19
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub(crate) struct FullDecryptor;
[INFO] [stdout]    |                   ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `WithUsage` is never constructed
[INFO] [stdout]    --> src/scan.rs:203:19
[INFO] [stdout]     |
[INFO] [stdout] 203 | pub(crate) struct WithUsage {
[INFO] [stdout]     |                   ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FullDecryptor` is never constructed
[INFO] [stdout]   --> src/scan.rs:59:19
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub(crate) struct FullDecryptor;
[INFO] [stdout]    |                   ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `WithUsage` is never constructed
[INFO] [stdout]    --> src/scan.rs:203:19
[INFO] [stdout]     |
[INFO] [stdout] 203 | pub(crate) struct WithUsage {
[INFO] [stdout]     |                   ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 14s
[INFO] running `Command { std: "docker" "inspect" "6c11d465f6acb086a50d59a01f53e9b7c4284a45798f18ddfea4a5d0ea406989", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c11d465f6acb086a50d59a01f53e9b7c4284a45798f18ddfea4a5d0ea406989", kill_on_drop: false }`
[INFO] [stdout] 6c11d465f6acb086a50d59a01f53e9b7c4284a45798f18ddfea4a5d0ea406989