[INFO] fetching crate dlc-trie 0.4.0...
[INFO] checking dlc-trie-0.4.0 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate dlc-trie 0.4.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate dlc-trie 0.4.0 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 dlc-trie 0.4.0
[INFO] finished tweaking crates.io crate dlc-trie 0.4.0
[INFO] tweaked toml for crates.io crate dlc-trie 0.4.0 written to /workspace/builds/worker-4-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 31 packages
[INFO] [stderr]       Adding bech32 v0.9.1 (latest: v0.11.0)
[INFO] [stderr]       Adding bitcoin v0.29.2 (latest: v0.31.2)
[INFO] [stderr]       Adding bitcoin_hashes v0.11.0 (latest: v0.14.0)
[INFO] [stderr]       Adding miniscript v8.0.2 (latest: v11.0.0)
[INFO] [stderr]       Adding secp256k1 v0.24.3 (latest: v0.29.0)
[INFO] [stderr]       Adding secp256k1-sys v0.6.1 (latest: v0.10.0)
[INFO] [stderr]       Adding secp256k1-zkp v0.7.0 (latest: v0.10.1)
[INFO] [stderr]       Adding secp256k1-zkp-sys v0.7.0 (latest: v0.9.1)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[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 dlc v0.4.0
[INFO] [stderr]   Downloaded secp256k1-zkp v0.7.0
[INFO] [stderr]   Downloaded miniscript v8.0.2
[INFO] [stderr]   Downloaded secp256k1-zkp-sys v0.7.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] bdb81ba02b5bd999b1bf5df0cb962b1e9223bc9c7111bb133cd7507bfedb1001
[INFO] running `Command { std: "docker" "start" "-a" "bdb81ba02b5bd999b1bf5df0cb962b1e9223bc9c7111bb133cd7507bfedb1001", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bdb81ba02b5bd999b1bf5df0cb962b1e9223bc9c7111bb133cd7507bfedb1001", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bdb81ba02b5bd999b1bf5df0cb962b1e9223bc9c7111bb133cd7507bfedb1001", kill_on_drop: false }`
[INFO] [stdout] bdb81ba02b5bd999b1bf5df0cb962b1e9223bc9c7111bb133cd7507bfedb1001
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 541d0de963ef7ade448aabfe28fbb3fdca1642ea591a5545dfc91edd31fabca2
[INFO] running `Command { std: "docker" "start" "-a" "541d0de963ef7ade448aabfe28fbb3fdca1642ea591a5545dfc91edd31fabca2", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling cc v1.0.90
[INFO] [stderr]     Checking bitcoin_hashes v0.11.0
[INFO] [stderr]     Checking bech32 v0.9.1
[INFO] [stderr]    Compiling secp256k1-sys v0.6.1
[INFO] [stderr]    Compiling secp256k1-zkp-sys v0.7.0
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking secp256k1 v0.24.3
[INFO] [stderr]     Checking bitcoin v0.29.2
[INFO] [stderr]     Checking miniscript v8.0.2
[INFO] [stderr]     Checking secp256k1-zkp v0.7.0
[INFO] [stderr]     Checking dlc v0.4.0
[INFO] [stderr]     Checking dlc-trie v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]    --> src/digit_trie.rs:262:49
[INFO] [stdout]     |
[INFO] [stdout] 262 | ...                   .push((cur_children[(cur_child as usize)], -1));
[INFO] [stdout]     |                                           ^                  ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 262 -                             .push((cur_children[(cur_child as usize)], -1));
[INFO] [stdout] 262 +                             .push((cur_children[cur_child as usize], -1));
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]    --> src/digit_trie.rs:262:49
[INFO] [stdout]     |
[INFO] [stdout] 262 | ...                   .push((cur_children[(cur_child as usize)], -1));
[INFO] [stdout]     |                                           ^                  ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 262 -                             .push((cur_children[(cur_child as usize)], -1));
[INFO] [stdout] 262 +                             .push((cur_children[cur_child as usize], -1));
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.33s
[INFO] running `Command { std: "docker" "inspect" "541d0de963ef7ade448aabfe28fbb3fdca1642ea591a5545dfc91edd31fabca2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "541d0de963ef7ade448aabfe28fbb3fdca1642ea591a5545dfc91edd31fabca2", kill_on_drop: false }`
[INFO] [stdout] 541d0de963ef7ade448aabfe28fbb3fdca1642ea591a5545dfc91edd31fabca2
[INFO] checking dlc-trie-0.4.0 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] extracting crate dlc-trie 0.4.0 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate dlc-trie 0.4.0 on toolchain 3a4bc97f6385a3aa300a4fd689b44350e54fd676
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dlc-trie 0.4.0
[INFO] finished tweaking crates.io crate dlc-trie 0.4.0
[INFO] tweaked toml for crates.io crate dlc-trie 0.4.0 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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3d88e6a791b45430f07f545fa60905c3a9abff7763a52698b784388e22c55e4f
[INFO] running `Command { std: "docker" "start" "-a" "3d88e6a791b45430f07f545fa60905c3a9abff7763a52698b784388e22c55e4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3d88e6a791b45430f07f545fa60905c3a9abff7763a52698b784388e22c55e4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d88e6a791b45430f07f545fa60905c3a9abff7763a52698b784388e22c55e4f", kill_on_drop: false }`
[INFO] [stdout] 3d88e6a791b45430f07f545fa60905c3a9abff7763a52698b784388e22c55e4f
[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" "-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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 33059ecfe5e1756f5772974c712ee5b82299ff70e702991f0a1084ba26b189c2
[INFO] running `Command { std: "docker" "start" "-a" "33059ecfe5e1756f5772974c712ee5b82299ff70e702991f0a1084ba26b189c2", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.90
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]     Checking bitcoin_hashes v0.11.0
[INFO] [stderr]     Checking bech32 v0.9.1
[INFO] [stderr]    Compiling secp256k1-sys v0.6.1
[INFO] [stderr]    Compiling secp256k1-zkp-sys v0.7.0
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking secp256k1 v0.24.3
[INFO] [stderr]     Checking bitcoin v0.29.2
[INFO] [stderr]     Checking miniscript v8.0.2
[INFO] [stderr]     Checking secp256k1-zkp v0.7.0
[INFO] [stderr]     Checking dlc v0.4.0
[INFO] [stderr]     Checking dlc-trie v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]    --> src/digit_trie.rs:262:49
[INFO] [stdout]     |
[INFO] [stdout] 262 | ...                   .push((cur_children[(cur_child as usize)], -1));
[INFO] [stdout]     |                                           ^                  ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 262 -                             .push((cur_children[(cur_child as usize)], -1));
[INFO] [stdout] 262 +                             .push((cur_children[cur_child as usize], -1));
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]    --> src/digit_trie.rs:262:49
[INFO] [stdout]     |
[INFO] [stdout] 262 | ...                   .push((cur_children[(cur_child as usize)], -1));
[INFO] [stdout]     |                                           ^                  ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 262 -                             .push((cur_children[(cur_child as usize)], -1));
[INFO] [stdout] 262 +                             .push((cur_children[cur_child as usize], -1));
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/digit_trie.rs:649:13
[INFO] [stdout]     |
[INFO] [stdout] 649 |             panic!();
[INFO] [stdout]     |             ^^^^^^^^ cannot infer type
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$crate::panic::panic_2015` which comes from the expansion of the macro `panic` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `dlc-trie` (lib test) due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "33059ecfe5e1756f5772974c712ee5b82299ff70e702991f0a1084ba26b189c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33059ecfe5e1756f5772974c712ee5b82299ff70e702991f0a1084ba26b189c2", kill_on_drop: false }`
[INFO] [stdout] 33059ecfe5e1756f5772974c712ee5b82299ff70e702991f0a1084ba26b189c2