[INFO] fetching crate serde-encrypt-core 0.7.0...
[INFO] checking serde-encrypt-core-0.7.0 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864
[INFO] extracting crate serde-encrypt-core 0.7.0 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate serde-encrypt-core 0.7.0 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 serde-encrypt-core 0.7.0
[INFO] finished tweaking crates.io crate serde-encrypt-core 0.7.0
[INFO] tweaked toml for crates.io crate serde-encrypt-core 0.7.0 written to /workspace/builds/worker-0-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]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 37 packages to latest compatible versions
[INFO] [stderr]       Adding aead v0.4.3 (available: v0.5.2)
[INFO] [stderr]       Adding chacha20 v0.7.3 (available: v0.9.1)
[INFO] [stderr]       Adding chacha20poly1305 v0.8.2 (available: v0.10.1)
[INFO] [stderr]       Adding cipher v0.3.0 (available: v0.4.4)
[INFO] [stderr]       Adding crypto_box v0.6.1 (available: v0.9.1)
[INFO] [stderr]       Adding curve25519-dalek v3.2.1 (available: v4.1.3)
[INFO] [stderr]       Adding digest v0.9.0 (available: v0.10.7)
[INFO] [stderr]       Adding generic-array v0.14.7 (available: v1.1.0)
[INFO] [stderr]       Adding poly1305 v0.7.2 (available: v0.8.0)
[INFO] [stderr]       Adding rand_core v0.5.1 (available: v0.6.4)
[INFO] [stderr]       Adding salsa20 v0.8.1 (available: v0.10.2)
[INFO] [stderr]       Adding subtle v2.4.1 (available: v2.6.1)
[INFO] [stderr]       Adding universal-hash v0.4.1 (available: v0.5.1)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (available: v0.13.2+wasi-0.2.1)
[INFO] [stderr]       Adding x25519-dalek v1.2.0 (available: v2.0.1)
[INFO] [stderr]       Adding xsalsa20poly1305 v0.7.2 (available: v0.9.1)
[INFO] [stderr]       Adding zeroize v1.3.0 (available: v1.8.1)
[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] [stderr]     Blocking waiting for file lock on package cache
[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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8e135be05313493b7cc0f867b8d816764ebcdb8ab46eecff3245f9d6ac2be4dd
[INFO] running `Command { std: "docker" "start" "-a" "8e135be05313493b7cc0f867b8d816764ebcdb8ab46eecff3245f9d6ac2be4dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8e135be05313493b7cc0f867b8d816764ebcdb8ab46eecff3245f9d6ac2be4dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e135be05313493b7cc0f867b8d816764ebcdb8ab46eecff3245f9d6ac2be4dd", kill_on_drop: false }`
[INFO] [stdout] 8e135be05313493b7cc0f867b8d816764ebcdb8ab46eecff3245f9d6ac2be4dd
[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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 88fbb28784b132c3d7cdaee162b3b1dd9ad4748b69d6dc69ef485c0216f845e5
[INFO] running `Command { std: "docker" "start" "-a" "88fbb28784b132c3d7cdaee162b3b1dd9ad4748b69d6dc69ef485c0216f845e5", kill_on_drop: false }`
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]     Checking cipher v0.3.0
[INFO] [stderr]     Checking universal-hash v0.4.1
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking zeroize v1.3.0
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr]     Checking poly1305 v0.7.2
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking salsa20 v0.8.1
[INFO] [stderr]     Checking chacha20 v0.7.3
[INFO] [stderr]     Checking curve25519-dalek v3.2.1
[INFO] [stderr]     Checking aead v0.4.3
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking xsalsa20poly1305 v0.7.2
[INFO] [stderr]     Checking chacha20poly1305 v0.8.2
[INFO] [stderr]     Checking x25519-dalek v1.2.0
[INFO] [stderr]     Checking zerocopy v0.7.35
[INFO] [stderr]     Checking crypto_box v0.6.1
[INFO] [stderr]     Checking ppv-lite86 v0.2.20
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking serde-encrypt-core v0.7.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `random::TestRngSingleton`
[INFO] [stdout]  --> tests/test_util/mod.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub use random::TestRngSingleton;
[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 5.99s
[INFO] running `Command { std: "docker" "inspect" "88fbb28784b132c3d7cdaee162b3b1dd9ad4748b69d6dc69ef485c0216f845e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88fbb28784b132c3d7cdaee162b3b1dd9ad4748b69d6dc69ef485c0216f845e5", kill_on_drop: false }`
[INFO] [stdout] 88fbb28784b132c3d7cdaee162b3b1dd9ad4748b69d6dc69ef485c0216f845e5