[INFO] fetching crate lite_db 0.1.5...
[INFO] checking lite_db-0.1.5 against try#de0e80659cee4f27282e60d63bbb8c5271a0d147 for pr-129392
[INFO] extracting crate lite_db 0.1.5 into /workspace/builds/worker-7-tc2/source
[INFO] validating manifest of crates.io crate lite_db 0.1.5 on toolchain de0e80659cee4f27282e60d63bbb8c5271a0d147
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+de0e80659cee4f27282e60d63bbb8c5271a0d147" "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-7-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+de0e80659cee4f27282e60d63bbb8c5271a0d147" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "+de0e80659cee4f27282e60d63bbb8c5271a0d147" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "+de0e80659cee4f27282e60d63bbb8c5271a0d147" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5ca44bda42aa2878831039c8aa671078563b46ba59c4c1e2cbae965ca99bc285
[INFO] running `Command { std: "docker" "start" "-a" "5ca44bda42aa2878831039c8aa671078563b46ba59c4c1e2cbae965ca99bc285", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5ca44bda42aa2878831039c8aa671078563b46ba59c4c1e2cbae965ca99bc285", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ca44bda42aa2878831039c8aa671078563b46ba59c4c1e2cbae965ca99bc285", kill_on_drop: false }`
[INFO] [stdout] 5ca44bda42aa2878831039c8aa671078563b46ba59c4c1e2cbae965ca99bc285
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "+de0e80659cee4f27282e60d63bbb8c5271a0d147" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7a3f0178e6380632e9039ca2354704716e21205df564c5b83a1a906135433065
[INFO] running `Command { std: "docker" "start" "-a" "7a3f0178e6380632e9039ca2354704716e21205df564c5b83a1a906135433065", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.209
[INFO] [stderr]    Compiling crossbeam-utils v0.8.20
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling either v1.13.0
[INFO] [stderr]     Checking bumpalo v3.16.0
[INFO] [stderr]    Compiling function_name-proc-macro v0.3.0
[INFO] [stderr]     Checking memmap2 v0.5.10
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]     Checking page_size v0.5.0
[INFO] [stderr]     Checking memmap2 v0.7.1
[INFO] [stderr]     Checking sha3 v0.10.8
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]     Checking function_name v0.3.0
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stderr]     Checking crossbeam-skiplist v0.1.3
[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 6.94s
[INFO] running `Command { std: "docker" "inspect" "7a3f0178e6380632e9039ca2354704716e21205df564c5b83a1a906135433065", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a3f0178e6380632e9039ca2354704716e21205df564c5b83a1a906135433065", kill_on_drop: false }`
[INFO] [stdout] 7a3f0178e6380632e9039ca2354704716e21205df564c5b83a1a906135433065