[INFO] fetching crate etcommon-block 0.5.2...
[INFO] checking etcommon-block-0.5.2 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate etcommon-block 0.5.2 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate etcommon-block 0.5.2 on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate etcommon-block 0.5.2
[INFO] finished tweaking crates.io crate etcommon-block 0.5.2
[INFO] tweaked toml for crates.io crate etcommon-block 0.5.2 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 43 packages
[INFO] [stderr]       Adding arrayvec v0.3.25 (latest: v0.7.4)
[INFO] [stderr]       Adding block-buffer v0.2.0 (latest: v0.10.4)
[INFO] [stderr]       Adding byte-tools v0.2.0 (latest: v0.3.1)
[INFO] [stderr]       Adding digest v0.6.1 (latest: v0.10.7)
[INFO] [stderr]       Adding generic-array v0.8.4 (latest: v1.0.0)
[INFO] [stderr]       Adding lazy_static v0.2.11 (latest: v1.4.0)
[INFO] [stderr]       Adding libsecp256k1 v0.1.3 (latest: v0.7.1)
[INFO] [stderr]       Adding odds v0.2.26 (latest: v0.4.0)
[INFO] [stderr]       Adding rand v0.3.23 (latest: v0.8.5)
[INFO] [stderr]       Adding rand v0.4.6 (latest: v0.8.5)
[INFO] [stderr]       Adding rand_core v0.3.1 (latest: v0.6.4)
[INFO] [stderr]       Adding rand_core v0.4.2 (latest: v0.6.4)
[INFO] [stderr]       Adding rdrand v0.4.0 (latest: v0.8.3)
[INFO] [stderr]       Adding sha3 v0.6.0 (latest: v0.10.8)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded generic-array v0.8.4
[INFO] [stderr]   Downloaded digest v0.6.1
[INFO] [stderr]   Downloaded byte-tools v0.2.0
[INFO] [stderr]   Downloaded block-buffer v0.2.0
[INFO] [stderr]   Downloaded etcommon-block-core v0.3.1
[INFO] [stderr]   Downloaded elastic-array-plus v0.10.0
[INFO] [stderr]   Downloaded arrayvec v0.3.25
[INFO] [stderr]   Downloaded etcommon-bloom v0.2.1
[INFO] [stderr]   Downloaded etcommon-hexutil v0.2.4
[INFO] [stderr]   Downloaded etcommon-trie v0.4.0
[INFO] [stderr]   Downloaded odds v0.2.26
[INFO] [stderr]   Downloaded etcommon-rlp v0.2.5
[INFO] [stderr]   Downloaded etcommon-bigint v0.2.10
[INFO] [stderr]   Downloaded sha3 v0.6.0
[INFO] [stderr]   Downloaded secp256k1-plus v0.5.7
[INFO] [stderr]   Downloaded libsecp256k1 v0.1.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 557fff205f622457ea57e4b17d4be0cff94e0315d80f307fa47f69a18b6e2278
[INFO] running `Command { std: "docker" "start" "-a" "557fff205f622457ea57e4b17d4be0cff94e0315d80f307fa47f69a18b6e2278", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "557fff205f622457ea57e4b17d4be0cff94e0315d80f307fa47f69a18b6e2278", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "557fff205f622457ea57e4b17d4be0cff94e0315d80f307fa47f69a18b6e2278", kill_on_drop: false }`
[INFO] [stdout] 557fff205f622457ea57e4b17d4be0cff94e0315d80f307fa47f69a18b6e2278
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a37a7bf820b4e1d30510efd9359cd42f4a48925c6efae38a6eb33950d3d233a5
[INFO] running `Command { std: "docker" "start" "-a" "a37a7bf820b4e1d30510efd9359cd42f4a48925c6efae38a6eb33950d3d233a5", kill_on_drop: false }`
[INFO] [stderr]    Compiling typenum v1.17.0
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]     Checking etcommon-hexutil v0.2.4
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking elastic-array-plus v0.10.0
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking byte-tools v0.2.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.79
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]     Checking odds v0.2.26
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]     Checking lazy_static v0.2.11
[INFO] [stderr]     Checking rustc-serialize v0.3.25
[INFO] [stderr]    Compiling serde_json v1.0.115
[INFO] [stderr]     Checking itoa v1.0.11
[INFO] [stderr]     Checking ryu v1.0.17
[INFO] [stderr]     Checking arrayvec v0.3.25
[INFO] [stderr]     Checking etcommon-rlp v0.2.5
[INFO] [stderr]    Compiling secp256k1-plus v0.5.7
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking generic-array v0.8.4
[INFO] [stderr]     Checking block-buffer v0.2.0
[INFO] [stderr]     Checking digest v0.6.1
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking etcommon-bigint v0.2.10
[INFO] [stderr]     Checking sha3 v0.6.0
[INFO] [stderr]     Checking etcommon-bloom v0.2.1
[INFO] [stderr]     Checking etcommon-trie v0.4.0
[INFO] [stderr]     Checking etcommon-block-core v0.3.1
[INFO] [stderr]     Checking etcommon-block v0.5.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `rlp` is imported redundantly
[INFO] [stdout]  --> src/header.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use rlp::{self, Encodable, Decodable, RlpStream, DecoderError, UntrustedRlp};
[INFO] [stdout]   |           ^^^^
[INFO] [stdout]   |
[INFO] [stdout]  ::: src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | extern crate rlp;
[INFO] [stdout]   | ----------------- the item `rlp` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rlp` is imported redundantly
[INFO] [stdout]  --> src/transaction.rs:8:11
[INFO] [stdout]   |
[INFO] [stdout] 8 | use rlp::{self, Encodable, Decodable, RlpStream, DecoderError, UntrustedRlp};
[INFO] [stdout]   |           ^^^^
[INFO] [stdout]   |
[INFO] [stdout]  ::: src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | extern crate rlp;
[INFO] [stdout]   | ----------------- the item `rlp` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rlp` is imported redundantly
[INFO] [stdout]  --> src/block.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use rlp::{self, Encodable, Decodable, RlpStream, DecoderError, UntrustedRlp};
[INFO] [stdout]   |           ^^^^
[INFO] [stdout]   |
[INFO] [stdout]  ::: src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | extern crate rlp;
[INFO] [stdout]   | ----------------- the item `rlp` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stdout] warning: the item `rlp` is imported redundantly
[INFO] [stdout]  --> src/header.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use rlp::{self, Encodable, Decodable, RlpStream, DecoderError, UntrustedRlp};
[INFO] [stdout]   |           ^^^^
[INFO] [stdout]   |
[INFO] [stdout]  ::: src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | extern crate rlp;
[INFO] [stdout]   | ----------------- the item `rlp` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rlp` is imported redundantly
[INFO] [stdout]  --> src/transaction.rs:8:11
[INFO] [stdout]   |
[INFO] [stdout] 8 | use rlp::{self, Encodable, Decodable, RlpStream, DecoderError, UntrustedRlp};
[INFO] [stdout]   |           ^^^^
[INFO] [stdout]   |
[INFO] [stdout]  ::: src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | extern crate rlp;
[INFO] [stdout]   | ----------------- the item `rlp` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `rlp` is imported redundantly
[INFO] [stdout]  --> src/block.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use rlp::{self, Encodable, Decodable, RlpStream, DecoderError, UntrustedRlp};
[INFO] [stdout]   |           ^^^^
[INFO] [stdout]   |
[INFO] [stdout]  ::: src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | extern crate rlp;
[INFO] [stdout]   | ----------------- the item `rlp` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.00s
[INFO] running `Command { std: "docker" "inspect" "a37a7bf820b4e1d30510efd9359cd42f4a48925c6efae38a6eb33950d3d233a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a37a7bf820b4e1d30510efd9359cd42f4a48925c6efae38a6eb33950d3d233a5", kill_on_drop: false }`
[INFO] [stdout] a37a7bf820b4e1d30510efd9359cd42f4a48925c6efae38a6eb33950d3d233a5