[INFO] fetching crate block-toolbox 0.2.0...
[INFO] checking block-toolbox-0.2.0 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930
[INFO] extracting crate block-toolbox 0.2.0 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate block-toolbox 0.2.0 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 block-toolbox 0.2.0
[INFO] finished tweaking crates.io crate block-toolbox 0.2.0
[INFO] tweaked toml for crates.io crate block-toolbox 0.2.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate crates.io crate block-toolbox 0.2.0 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-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] 9e3140f92b478fc7651f81e0c3423433eb4cb4a82463240c4ce4b374b17abcf9
[INFO] running `Command { std: "docker" "start" "-a" "9e3140f92b478fc7651f81e0c3423433eb4cb4a82463240c4ce4b374b17abcf9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9e3140f92b478fc7651f81e0c3423433eb4cb4a82463240c4ce4b374b17abcf9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e3140f92b478fc7651f81e0c3423433eb4cb4a82463240c4ce4b374b17abcf9", kill_on_drop: false }`
[INFO] [stdout] 9e3140f92b478fc7651f81e0c3423433eb4cb4a82463240c4ce4b374b17abcf9
[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] 9feedb54b9b6e881da2c220a946eccad2ff0e5f48a34b01d9c12470d52d076b0
[INFO] running `Command { std: "docker" "start" "-a" "9feedb54b9b6e881da2c220a946eccad2ff0e5f48a34b01d9c12470d52d076b0", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling libc v0.2.116
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling futures-core v0.3.19
[INFO] [stderr]    Compiling futures-channel v0.3.19
[INFO] [stderr]    Compiling futures-task v0.3.19
[INFO] [stderr]     Checking futures-sink v0.3.19
[INFO] [stderr]     Checking futures-io v0.3.19
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling futures-util v0.3.19
[INFO] [stderr]    Compiling generic-array v0.14.5
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling radium v0.6.2
[INFO] [stderr]     Checking rustc-hex v2.1.0
[INFO] [stderr]     Checking funty v1.1.0
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking wyz v0.2.0
[INFO] [stderr]     Checking block-padding v0.2.1
[INFO] [stderr]     Checking tracing-core v0.1.21
[INFO] [stderr]     Checking rlp v0.5.1
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]    Compiling serde_json v1.0.78
[INFO] [stderr]     Checking arrayvec v0.7.2
[INFO] [stderr]     Checking byte-slice-cast v1.2.0
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]    Compiling openssl-sys v0.9.72
[INFO] [stderr]    Compiling indexmap v1.8.0
[INFO] [stderr]     Checking uint v0.9.2
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[INFO] [stderr]     Checking parking_lot_core v0.8.5
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[INFO] [stderr]     Checking sha-1 v0.9.8
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[INFO] [stderr]     Checking headers v0.3.6
[INFO] [stderr]     Checking fixed-hash v0.7.0
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling tokio-macros v1.7.0
[INFO] [stderr]    Compiling futures-macro v0.3.19
[INFO] [stderr]    Compiling impl-trait-for-tuples v0.2.1
[INFO] [stderr]    Compiling pin-project-internal v1.0.10
[INFO] [stderr]    Compiling derive_more v0.99.17
[INFO] [stderr]     Checking tokio v1.16.1
[INFO] [stderr]    Compiling thiserror v1.0.30
[INFO] [stderr]     Checking pin-project v1.0.10
[INFO] [stderr]    Compiling proc-macro-crate v1.1.0
[INFO] [stderr]    Compiling parity-scale-codec-derive v2.3.1
[INFO] [stderr]     Checking futures-executor v0.3.19
[INFO] [stderr]     Checking futures v0.3.19
[INFO] [stderr]     Checking soketto v0.5.0
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[INFO] [stderr]     Checking primitive-types v0.9.1
[INFO] [stderr]     Checking jsonrpc-core v18.0.0
[INFO] [stderr]     Checking hyper v0.14.16
[INFO] [stderr]     Checking ethereum-types v0.11.0
[INFO] [stderr]     Checking ethabi v14.1.0
[INFO] [stderr]     Checking hyper-tls v0.5.0
[INFO] [stderr]     Checking reqwest v0.11.9
[INFO] [stderr]     Checking web3 v0.17.0
[INFO] [stderr]     Checking block-toolbox v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Deserialize` and `Serialize`
[INFO] [stdout]  --> examples/balance.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | use serde::{Serialize, Deserialize};
[INFO] [stdout]   |             ^^^^^^^^^  ^^^^^^^^^^^
[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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.29s
[INFO] running `Command { std: "docker" "inspect" "9feedb54b9b6e881da2c220a946eccad2ff0e5f48a34b01d9c12470d52d076b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9feedb54b9b6e881da2c220a946eccad2ff0e5f48a34b01d9c12470d52d076b0", kill_on_drop: false }`
[INFO] [stdout] 9feedb54b9b6e881da2c220a946eccad2ff0e5f48a34b01d9c12470d52d076b0