[INFO] fetching crate datazoo 0.7.0...
[INFO] checking datazoo-0.7.0 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate datazoo 0.7.0 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate datazoo 0.7.0 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] removed /workspace/builds/worker-3-tc1/source/.cargo/config.toml
[INFO] started tweaking crates.io crate datazoo 0.7.0
[INFO] finished tweaking crates.io crate datazoo 0.7.0
[INFO] tweaked toml for crates.io crate datazoo 0.7.0 written to /workspace/builds/worker-3-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 28 packages
[INFO] [stderr]       Adding proc-macro-crate v1.3.1 (latest: v3.1.0)
[INFO] [stderr]       Adding toml_edit v0.19.15 (latest: v0.22.9)
[INFO] [stderr]       Adding winnow v0.5.40 (latest: v0.6.5)
[INFO] [stderr]       Adding yansi v0.5.1 (latest: v1.0.1)
[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 sorted-iter v0.1.11
[INFO] [stderr]   Downloaded enumset v1.1.3
[INFO] [stderr]   Downloaded enumset_derive v0.8.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 142996f02567f3994d997e8e972ec3b2b516f65052546b5d041e0a0c7ee4f32a
[INFO] running `Command { std: "docker" "start" "-a" "142996f02567f3994d997e8e972ec3b2b516f65052546b5d041e0a0c7ee4f32a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "142996f02567f3994d997e8e972ec3b2b516f65052546b5d041e0a0c7ee4f32a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "142996f02567f3994d997e8e972ec3b2b516f65052546b5d041e0a0c7ee4f32a", kill_on_drop: false }`
[INFO] [stdout] 142996f02567f3994d997e8e972ec3b2b516f65052546b5d041e0a0c7ee4f32a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 9faf1d002b29460969659f274e65dc2847390f0be348b09af7495e8768ad548b
[INFO] running `Command { std: "docker" "start" "-a" "9faf1d002b29460969659f274e65dc2847390f0be348b09af7495e8768ad548b", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]     Checking diff v0.1.13
[INFO] [stderr]     Checking sorted-iter v0.1.11
[INFO] [stderr]     Checking yansi v0.5.1
[INFO] [stderr]     Checking pretty_assertions v1.4.0
[INFO] [stderr]    Compiling darling_core v0.20.8
[INFO] [stderr]    Compiling thiserror-impl v1.0.58
[INFO] [stderr]    Compiling darling_macro v0.20.8
[INFO] [stderr]     Checking thiserror v1.0.58
[INFO] [stderr]    Compiling darling v0.20.8
[INFO] [stderr]    Compiling enumset_derive v0.8.1
[INFO] [stderr]     Checking enumset v1.1.3
[INFO] [stderr]     Checking datazoo v0.7.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/sorted.rs:232:30
[INFO] [stdout]     |
[INFO] [stdout] 232 | pub struct SortedIter<'a, T>(slice::Iter<'a, T>);
[INFO] [stdout]     |            ----------        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |            |
[INFO] [stdout]     |            field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 232 | pub struct SortedIter<'a, T>(());
[INFO] [stdout]     |                              ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/sorted.rs:232:30
[INFO] [stdout]     |
[INFO] [stdout] 232 | pub struct SortedIter<'a, T>(slice::Iter<'a, T>);
[INFO] [stdout]     |            ----------        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |            |
[INFO] [stdout]     |            field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 232 | pub struct SortedIter<'a, T>(());
[INFO] [stdout]     |                              ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.31s
[INFO] running `Command { std: "docker" "inspect" "9faf1d002b29460969659f274e65dc2847390f0be348b09af7495e8768ad548b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9faf1d002b29460969659f274e65dc2847390f0be348b09af7495e8768ad548b", kill_on_drop: false }`
[INFO] [stdout] 9faf1d002b29460969659f274e65dc2847390f0be348b09af7495e8768ad548b