[INFO] fetching crate tsfile-writer 0.2.1...
[INFO] checking tsfile-writer-0.2.1 against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] extracting crate tsfile-writer 0.2.1 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate tsfile-writer 0.2.1 on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tsfile-writer 0.2.1
[INFO] finished tweaking crates.io crate tsfile-writer 0.2.1
[INFO] tweaked toml for crates.io crate tsfile-writer 0.2.1 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 52 packages to latest compatible versions
[INFO] [stderr]       Adding generic-array v0.14.7 (latest: v1.1.0)
[INFO] [stderr]       Adding hermit-abi v0.3.9 (latest: v0.4.0)
[INFO] [stderr]       Adding ipnetwork v0.18.0 (latest: v0.20.0)
[INFO] [stderr]       Adding ordered-float v1.1.1 (latest: v4.2.2)
[INFO] [stderr]       Adding pnet v0.29.0 (latest: v0.35.0)
[INFO] [stderr]       Adding pnet_base v0.29.0 (latest: v0.35.0)
[INFO] [stderr]       Adding pnet_datalink v0.29.0 (latest: v0.35.0)
[INFO] [stderr]       Adding pnet_macros v0.29.0 (latest: v0.35.0)
[INFO] [stderr]       Adding pnet_macros_support v0.29.0 (latest: v0.35.0)
[INFO] [stderr]       Adding pnet_packet v0.29.0 (latest: v0.35.0)
[INFO] [stderr]       Adding pnet_sys v0.29.0 (latest: v0.35.0)
[INFO] [stderr]       Adding pnet_transport v0.29.0 (latest: v0.35.0)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.76)
[INFO] [stderr]       Adding thrift v0.14.2 (latest: v0.17.0)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.2+wasi-0.2.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pnet v0.29.0
[INFO] [stderr]   Downloaded integer-encoding v4.0.2
[INFO] [stderr]   Downloaded pnet_sys v0.29.0
[INFO] [stderr]   Downloaded pnet_transport v0.29.0
[INFO] [stderr]   Downloaded pnet_base v0.29.0
[INFO] [stderr]   Downloaded pnet_macros_support v0.29.0
[INFO] [stderr]   Downloaded pnet_packet v0.29.0
[INFO] [stderr]   Downloaded pnet_datalink v0.29.0
[INFO] [stderr]   Downloaded pnet_macros v0.29.0
[INFO] [stderr]   Downloaded thrift v0.14.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] be750dff799faa37716e3ab7a5e0b015064810fb16e00c628eed5183023f86de
[INFO] running `Command { std: "docker" "start" "-a" "be750dff799faa37716e3ab7a5e0b015064810fb16e00c628eed5183023f86de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "be750dff799faa37716e3ab7a5e0b015064810fb16e00c628eed5183023f86de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be750dff799faa37716e3ab7a5e0b015064810fb16e00c628eed5183023f86de", kill_on_drop: false }`
[INFO] [stdout] be750dff799faa37716e3ab7a5e0b015064810fb16e00c628eed5183023f86de
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d3d9ec9f660434e2355dc723d41fb925ab73e4e464f78013ed3483ebe5bf72f9
[INFO] running `Command { std: "docker" "start" "-a" "d3d9ec9f660434e2355dc723d41fb925ab73e4e464f78013ed3483ebe5bf72f9", kill_on_drop: false }`
[INFO] [stderr]    Compiling snap v1.1.1
[INFO] [stderr]     Checking tsfile-writer v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `ChunkGroup` is never constructed
[INFO] [stdout]    --> src/writer/mod.rs:838:8
[INFO] [stdout]     |
[INFO] [stdout] 838 | struct ChunkGroup<'a> {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.borrow()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/writer/tsfile_writer.rs:310:25
[INFO] [stdout]     |
[INFO] [stdout] 310 |                     path.borrow(),
[INFO] [stdout]     |                         ^^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `str` does not implement `Borrow`, so calling `borrow` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ChunkGroup` is never constructed
[INFO] [stdout]    --> src/writer/mod.rs:838:8
[INFO] [stdout]     |
[INFO] [stdout] 838 | struct ChunkGroup<'a> {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.borrow()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/writer/tsfile_writer.rs:310:25
[INFO] [stdout]     |
[INFO] [stdout] 310 |                     path.borrow(),
[INFO] [stdout]     |                         ^^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `str` does not implement `Borrow`, so calling `borrow` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.71s
[INFO] running `Command { std: "docker" "inspect" "d3d9ec9f660434e2355dc723d41fb925ab73e4e464f78013ed3483ebe5bf72f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3d9ec9f660434e2355dc723d41fb925ab73e4e464f78013ed3483ebe5bf72f9", kill_on_drop: false }`
[INFO] [stdout] d3d9ec9f660434e2355dc723d41fb925ab73e4e464f78013ed3483ebe5bf72f9