[INFO] fetching crate libreda-db 0.0.6...
[INFO] checking libreda-db-0.0.6 against master#936f2600b6c903b04387f74ed5cbce88bb06d243 for pr-91141
[INFO] extracting crate libreda-db 0.0.6 into /workspace/builds/worker-118/source
[INFO] validating manifest of crates.io crate libreda-db 0.0.6 on toolchain 936f2600b6c903b04387f74ed5cbce88bb06d243
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate libreda-db 0.0.6
[INFO] finished tweaking crates.io crate libreda-db 0.0.6
[INFO] tweaked toml for crates.io crate libreda-db 0.0.6 written to /workspace/builds/worker-118/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "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-118/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-118/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 98db5f4c714fbb9e7bd3d406644b07c4d225a3ca48bcb4301770e08f954015bf
[INFO] running `Command { std: "docker" "start" "-a" "98db5f4c714fbb9e7bd3d406644b07c4d225a3ca48bcb4301770e08f954015bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "98db5f4c714fbb9e7bd3d406644b07c4d225a3ca48bcb4301770e08f954015bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "98db5f4c714fbb9e7bd3d406644b07c4d225a3ca48bcb4301770e08f954015bf", kill_on_drop: false }`
[INFO] [stdout] 98db5f4c714fbb9e7bd3d406644b07c4d225a3ca48bcb4301770e08f954015bf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-118/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-118/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 28589ab9c396f7a553af361db5246e0085c48167a54cc37f7e459c6d5e1781ef
[INFO] running `Command { std: "docker" "start" "-a" "28589ab9c396f7a553af361db5246e0085c48167a54cc37f7e459c6d5e1781ef", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.82
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking itertools v0.10.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]     Checking iron-shapes v0.0.6
[INFO] [stderr]     Checking libreda-db v0.0.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `top_a`
[INFO] [stdout]    --> src/undo.rs:678:9
[INFO] [stdout]     |
[INFO] [stdout] 678 |     let top_a = undo.create_pin(&top, "A".into(), Direction::Input);
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_top_a`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sub_b`
[INFO] [stdout]    --> src/undo.rs:680:9
[INFO] [stdout]     |
[INFO] [stdout] 680 |     let sub_b = undo.create_pin(&sub, "B".into(), Direction::Input);
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_sub_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `instance_properties`
[INFO] [stdout]    --> src/chip.rs:163:5
[INFO] [stdout]     |
[INFO] [stdout] 163 |     instance_properties: IntHashMap<CellInstId, PropertyStore<NameT>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `user_data`
[INFO] [stdout]    --> src/chip.rs:167:5
[INFO] [stdout]     |
[INFO] [stdout] 167 |     user_data: U,
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `user_data`
[INFO] [stdout]    --> src/chip.rs:300:5
[INFO] [stdout]     |
[INFO] [stdout] 300 |     user_data: U,
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `user_data`
[INFO] [stdout]     --> src/chip.rs:1704:5
[INFO] [stdout]      |
[INFO] [stdout] 1704 |     user_data: U,
[INFO] [stdout]      |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `parent_cell`
[INFO] [stdout]     --> src/chip.rs:1715:5
[INFO] [stdout]      |
[INFO] [stdout] 1715 |     parent_cell: CellId,
[INFO] [stdout]      |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `instance_properties`
[INFO] [stdout]    --> src/chip.rs:163:5
[INFO] [stdout]     |
[INFO] [stdout] 163 |     instance_properties: IntHashMap<CellInstId, PropertyStore<NameT>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `user_data`
[INFO] [stdout]    --> src/chip.rs:167:5
[INFO] [stdout]     |
[INFO] [stdout] 167 |     user_data: U,
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `user_data`
[INFO] [stdout]    --> src/chip.rs:300:5
[INFO] [stdout]     |
[INFO] [stdout] 300 |     user_data: U,
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `user_data`
[INFO] [stdout]     --> src/chip.rs:1704:5
[INFO] [stdout]      |
[INFO] [stdout] 1704 |     user_data: U,
[INFO] [stdout]      |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `parent_cell`
[INFO] [stdout]     --> src/chip.rs:1715:5
[INFO] [stdout]      |
[INFO] [stdout] 1715 |     parent_cell: CellId,
[INFO] [stdout]      |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.76s
[INFO] running `Command { std: "docker" "inspect" "28589ab9c396f7a553af361db5246e0085c48167a54cc37f7e459c6d5e1781ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "28589ab9c396f7a553af361db5246e0085c48167a54cc37f7e459c6d5e1781ef", kill_on_drop: false }`
[INFO] [stdout] 28589ab9c396f7a553af361db5246e0085c48167a54cc37f7e459c6d5e1781ef