[INFO] fetching crate lite_db 0.1.5...
[INFO] checking lite_db-0.1.5 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] extracting crate lite_db 0.1.5 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate lite_db 0.1.5 on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate lite_db 0.1.5
[INFO] finished tweaking crates.io crate lite_db 0.1.5
[INFO] tweaked toml for crates.io crate lite_db 0.1.5 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 58 packages to latest compatible versions
[INFO] [stderr]       Adding generic-array v0.14.7 (latest: v1.1.0)
[INFO] [stderr]       Adding itertools v0.10.5 (latest: v0.13.0)
[INFO] [stderr]       Adding jammdb v0.10.0 (latest: v0.11.0)
[INFO] [stderr]       Adding memmap2 v0.5.10 (latest: v0.9.4)
[INFO] [stderr]       Adding memmap2 v0.7.1 (latest: v0.9.4)
[INFO] [stderr]       Adding page_size v0.5.0 (latest: v0.6.0)
[INFO] [stderr]       Adding prost v0.11.9 (latest: v0.13.2)
[INFO] [stderr]       Adding prost-derive v0.11.9 (latest: v0.13.2)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.77)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded function_name v0.3.0
[INFO] [stderr]   Downloaded function_name-proc-macro v0.3.0
[INFO] [stderr]   Downloaded page_size v0.5.0
[INFO] [stderr]   Downloaded crossbeam-skiplist v0.1.3
[INFO] [stderr]   Downloaded jammdb v0.10.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 376200c84feec56efc28e4462de048f75eecb81b1c4f0ab38e2fed161cf1c9cc
[INFO] running `Command { std: "docker" "start" "-a" "376200c84feec56efc28e4462de048f75eecb81b1c4f0ab38e2fed161cf1c9cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "376200c84feec56efc28e4462de048f75eecb81b1c4f0ab38e2fed161cf1c9cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "376200c84feec56efc28e4462de048f75eecb81b1c4f0ab38e2fed161cf1c9cc", kill_on_drop: false }`
[INFO] [stdout] 376200c84feec56efc28e4462de048f75eecb81b1c4f0ab38e2fed161cf1c9cc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 46444f908bd839e09c63d58355327fa38f882d0486b7aadc499a2d56736f83f9
[INFO] running `Command { std: "docker" "start" "-a" "46444f908bd839e09c63d58355327fa38f882d0486b7aadc499a2d56736f83f9", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.209
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling either v1.13.0
[INFO] [stderr]    Compiling function_name-proc-macro v0.3.0
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]     Checking page_size v0.5.0
[INFO] [stderr]     Checking memmap2 v0.5.10
[INFO] [stderr]     Checking memmap2 v0.7.1
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stderr]     Checking sha3 v0.10.8
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]     Checking crossbeam-skiplist v0.1.3
[INFO] [stderr]     Checking function_name v0.3.0
[INFO] [stderr]    Compiling prost-derive v0.11.9
[INFO] [stderr]     Checking bytes v1.7.1
[INFO] [stderr]     Checking jammdb v0.10.0
[INFO] [stderr]     Checking prost v0.11.9
[INFO] [stderr]     Checking lite_db v0.1.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `merging_lock` is never read
[INFO] [stdout]   --> src/lite/lite.rs:34:16
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub struct LiteDb {
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 34 |     pub(crate) merging_lock: Mutex<()>,
[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 `merging_lock` is never read
[INFO] [stdout]   --> src/lite/lite.rs:34:16
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub struct LiteDb {
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 34 |     pub(crate) merging_lock: Mutex<()>,
[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` profile [unoptimized + debuginfo] target(s) in 6.27s
[INFO] running `Command { std: "docker" "inspect" "46444f908bd839e09c63d58355327fa38f882d0486b7aadc499a2d56736f83f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46444f908bd839e09c63d58355327fa38f882d0486b7aadc499a2d56736f83f9", kill_on_drop: false }`
[INFO] [stdout] 46444f908bd839e09c63d58355327fa38f882d0486b7aadc499a2d56736f83f9