[INFO] fetching crate keratin 0.2.2...
[INFO] checking keratin-0.2.2 against master#db1fb85cff63ad5fffe435e17128f99f9e1d970c for pr-89056
[INFO] extracting crate keratin 0.2.2 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate keratin 0.2.2 on toolchain db1fb85cff63ad5fffe435e17128f99f9e1d970c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate keratin 0.2.2
[INFO] finished tweaking crates.io crate keratin 0.2.2
[INFO] tweaked toml for crates.io crate keratin 0.2.2 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "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" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "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-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4e40b3326ccd6b1eee0364a4a6937deaacf4f2a041076eefb8951dfb67182d22
[INFO] running `Command { std: "docker" "start" "-a" "4e40b3326ccd6b1eee0364a4a6937deaacf4f2a041076eefb8951dfb67182d22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4e40b3326ccd6b1eee0364a4a6937deaacf4f2a041076eefb8951dfb67182d22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4e40b3326ccd6b1eee0364a4a6937deaacf4f2a041076eefb8951dfb67182d22", kill_on_drop: false }`
[INFO] [stdout] 4e40b3326ccd6b1eee0364a4a6937deaacf4f2a041076eefb8951dfb67182d22
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 248ae64056e52b35efc717926ba0581d98c03df78e5d780e4705d6c19bb22dca
[INFO] running `Command { std: "docker" "start" "-a" "248ae64056e52b35efc717926ba0581d98c03df78e5d780e4705d6c19bb22dca", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling libc v0.2.102
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]    Compiling serde_json v1.0.68
[INFO] [stderr]     Checking linked-hash-map v0.5.4
[INFO] [stderr]     Checking hex v0.4.3
[INFO] [stderr]     Checking md5 v0.7.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]     Checking serde v1.0.130
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]     Checking bson v1.2.3
[INFO] [stderr]     Checking keratin v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `project`
[INFO] [stdout]   --> src/config/mod.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     project: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `config_file_path`
[INFO] [stdout]   --> src/config/mod.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     config_file_path: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `primary_key`
[INFO] [stdout]   --> src/config/mod.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     primary_key: String, // Default: Collection name hash prefix + Hashed data
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `project`
[INFO] [stdout]   --> src/config/mod.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     project: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `config_file_path`
[INFO] [stdout]   --> src/config/mod.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     config_file_path: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `primary_key`
[INFO] [stdout]   --> src/config/mod.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     primary_key: String, // Default: Collection name hash prefix + Hashed data
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 25.26s
[INFO] running `Command { std: "docker" "inspect" "248ae64056e52b35efc717926ba0581d98c03df78e5d780e4705d6c19bb22dca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "248ae64056e52b35efc717926ba0581d98c03df78e5d780e4705d6c19bb22dca", kill_on_drop: false }`
[INFO] [stdout] 248ae64056e52b35efc717926ba0581d98c03df78e5d780e4705d6c19bb22dca