[INFO] fetching crate trie-db 0.23.0...
[INFO] checking trie-db-0.23.0 against master#936f2600b6c903b04387f74ed5cbce88bb06d243 for pr-91141
[INFO] extracting crate trie-db 0.23.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate trie-db 0.23.0 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 trie-db 0.23.0
[INFO] finished tweaking crates.io crate trie-db 0.23.0
[INFO] tweaked toml for crates.io crate trie-db 0.23.0 written to /workspace/builds/worker-2/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] [stderr]     Blocking waiting for file lock on package cache
[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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] ac312fa7efd1bbacff0e361ec6a8f879b308ea3768c5bc9d0ebde3c6ebf95cef
[INFO] running `Command { std: "docker" "start" "-a" "ac312fa7efd1bbacff0e361ec6a8f879b308ea3768c5bc9d0ebde3c6ebf95cef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ac312fa7efd1bbacff0e361ec6a8f879b308ea3768c5bc9d0ebde3c6ebf95cef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac312fa7efd1bbacff0e361ec6a8f879b308ea3768c5bc9d0ebde3c6ebf95cef", kill_on_drop: false }`
[INFO] [stdout] ac312fa7efd1bbacff0e361ec6a8f879b308ea3768c5bc9d0ebde3c6ebf95cef
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 3713c5f5aeed6ae66cada2d56e95a735c544b37aa8ddd358e25826ec81c61f7f
[INFO] running `Command { std: "docker" "start" "-a" "3713c5f5aeed6ae66cada2d56e95a735c544b37aa8ddd358e25826ec81c61f7f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.108
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]     Checking hash-db v0.15.2
[INFO] [stderr]     Checking rustc-hex v2.1.0
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]     Checking trie-db v0.23.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `layout`
[INFO] [stdout]    --> src/lib.rs:280:2
[INFO] [stdout]     |
[INFO] [stdout] 280 |     layout: L,
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `layout`
[INFO] [stdout]    --> src/lib.rs:280:2
[INFO] [stdout]     |
[INFO] [stdout] 280 |     layout: L,
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.06s
[INFO] running `Command { std: "docker" "inspect" "3713c5f5aeed6ae66cada2d56e95a735c544b37aa8ddd358e25826ec81c61f7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3713c5f5aeed6ae66cada2d56e95a735c544b37aa8ddd358e25826ec81c61f7f", kill_on_drop: false }`
[INFO] [stdout] 3713c5f5aeed6ae66cada2d56e95a735c544b37aa8ddd358e25826ec81c61f7f