[INFO] fetching crate sszt 0.1.2...
[INFO] checking sszt-0.1.2 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864
[INFO] extracting crate sszt 0.1.2 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate sszt 0.1.2 on toolchain 7014e13d5becc920d4bea3cd87942c8a13d359bf
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sszt 0.1.2
[INFO] finished tweaking crates.io crate sszt 0.1.2
[INFO] tweaked toml for crates.io crate sszt 0.1.2 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" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 55 packages to latest compatible versions
[INFO] [stderr]       Adding arrayvec v0.4.12 (available: v0.7.6)
[INFO] [stderr]       Adding bitflags v1.3.2 (available: v2.6.0)
[INFO] [stderr]       Adding cloudabi v0.0.3 (available: v0.1.0)
[INFO] [stderr]       Adding ethbloom v0.6.4 (available: v0.14.1)
[INFO] [stderr]       Adding ethereum-types v0.6.0 (available: v0.15.1)
[INFO] [stderr]       Adding fixed-hash v0.3.2 (available: v0.8.0)
[INFO] [stderr]       Adding hash-db v0.11.0 (available: v0.16.0)
[INFO] [stderr]       Adding hashbrown v0.12.3 (available: v0.14.5)
[INFO] [stderr]       Adding impl-codec v0.2.0 (available: v0.7.0)
[INFO] [stderr]       Adding impl-rlp v0.2.1 (available: v0.4.0)
[INFO] [stderr]       Adding impl-serde v0.2.3 (available: v0.5.0)
[INFO] [stderr]       Adding indexmap v1.9.3 (available: v2.5.0)
[INFO] [stderr]       Adding parity-codec v3.5.4 (available: v4.1.4)
[INFO] [stderr]       Adding primitive-types v0.2.4 (available: v0.13.1)
[INFO] [stderr]       Adding primitive-types v0.3.0 (available: v0.13.1)
[INFO] [stderr]       Adding proc-macro2 v0.4.30 (available: v1.0.86)
[INFO] [stderr]       Adding quote v0.6.13 (available: v1.0.37)
[INFO] [stderr]       Adding rand v0.5.6 (available: v0.8.5)
[INFO] [stderr]       Adding rand_core v0.3.1 (available: v0.6.4)
[INFO] [stderr]       Adding rand_core v0.4.2 (available: v0.6.4)
[INFO] [stderr]       Adding rlp v0.4.6 (available: v0.6.1)
[INFO] [stderr]       Adding serde_yaml v0.8.26 (available: v0.9.34+deprecated)
[INFO] [stderr]       Adding ssz v0.1.2 (available: v0.2.0)
[INFO] [stderr]       Adding ssz-derive v0.1.2 (available: v0.2.0)
[INFO] [stderr]       Adding static_assertions v0.2.5 (available: v1.1.0)
[INFO] [stderr]       Adding syn v0.15.44 (available: v2.0.77)
[INFO] [stderr]       Adding tiny-keccak v1.5.0 (available: v2.0.2)
[INFO] [stderr]       Adding uint v0.7.1 (available: v0.10.0)
[INFO] [stderr]       Adding unicode-xid v0.1.0 (available: v0.2.6)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c0847100dbb021e7a49a46d986398e9e440c3394e7a511ca203ede850df77a9d
[INFO] running `Command { std: "docker" "start" "-a" "c0847100dbb021e7a49a46d986398e9e440c3394e7a511ca203ede850df77a9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c0847100dbb021e7a49a46d986398e9e440c3394e7a511ca203ede850df77a9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0847100dbb021e7a49a46d986398e9e440c3394e7a511ca203ede850df77a9d", kill_on_drop: false }`
[INFO] [stdout] c0847100dbb021e7a49a46d986398e9e440c3394e7a511ca203ede850df77a9d
[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 -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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3f65b42ba2046b9434544550504dfeff61bf0822ef00a4e702e43bbb7099fd1f
[INFO] running `Command { std: "docker" "start" "-a" "3f65b42ba2046b9434544550504dfeff61bf0822ef00a4e702e43bbb7099fd1f", kill_on_drop: false }`
[INFO] [stderr]     Checking rustc-hex v2.1.0
[INFO] [stderr]    Compiling heapsize v0.4.2
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking static_assertions v0.2.5
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]     Checking yaml-rust v0.4.5
[INFO] [stderr]     Checking hash-db v0.11.0
[INFO] [stderr]     Checking rlp v0.4.6
[INFO] [stderr]    Compiling syn v2.0.77
[INFO] [stderr]     Checking impl-rlp v0.2.1
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking tiny-keccak v1.5.0
[INFO] [stderr]     Checking uint v0.7.1
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking fixed-hash v0.3.2
[INFO] [stderr]    Compiling ssz-derive v0.1.2
[INFO] [stderr]    Compiling serde_derive v1.0.210
[INFO] [stderr]     Checking serde v1.0.210
[INFO] [stderr]     Checking parity-codec v3.5.4
[INFO] [stderr]     Checking impl-serde v0.2.3
[INFO] [stderr]     Checking serde_yaml v0.8.26
[INFO] [stderr]     Checking serde_json v1.0.128
[INFO] [stderr]     Checking ethbloom v0.6.4
[INFO] [stderr]     Checking impl-codec v0.2.0
[INFO] [stderr]     Checking primitive-types v0.3.0
[INFO] [stderr]     Checking primitive-types v0.2.4
[INFO] [stderr]     Checking ssz v0.1.2
[INFO] [stderr]     Checking ethereum-types v0.6.0
[INFO] [stderr]     Checking sszt v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `indexmap::IndexMap`
[INFO] [stdout]   --> src/yaml.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |     use indexmap::IndexMap;
[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 18.05s
[INFO] running `Command { std: "docker" "inspect" "3f65b42ba2046b9434544550504dfeff61bf0822ef00a4e702e43bbb7099fd1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f65b42ba2046b9434544550504dfeff61bf0822ef00a4e702e43bbb7099fd1f", kill_on_drop: false }`
[INFO] [stdout] 3f65b42ba2046b9434544550504dfeff61bf0822ef00a4e702e43bbb7099fd1f