[INFO] fetching crate zchunk 0.2.0...
[INFO] building zchunk-0.2.0 against try#4987e9d4227139400384ab59296ffee3b0fb1183 for pr-146237-2
[INFO] extracting crate zchunk 0.2.0 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate zchunk 0.2.0
[INFO] finished tweaking crates.io crate zchunk 0.2.0
[INFO] tweaked toml for crates.io crate zchunk 0.2.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate zchunk 0.2.0 on toolchain 4987e9d4227139400384ab59296ffee3b0fb1183
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 39 packages to latest compatible versions
[INFO] [stderr]       Adding thiserror v1.0.69 (available: v2.0.17)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ff714240bb3f0000771ac3000fc1c3762b062e94ba78887b4db9c165ec76ede5
[INFO] running `Command { std: "docker" "start" "-a" "ff714240bb3f0000771ac3000fc1c3762b062e94ba78887b4db9c165ec76ede5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ff714240bb3f0000771ac3000fc1c3762b062e94ba78887b4db9c165ec76ede5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff714240bb3f0000771ac3000fc1c3762b062e94ba78887b4db9c165ec76ede5", kill_on_drop: false }`
[INFO] [stdout] ff714240bb3f0000771ac3000fc1c3762b062e94ba78887b4db9c165ec76ede5
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 183bc3d5d41bbddb632b7e6fab4cbd491c11890e1d017b295e3267b270f81617
[INFO] running `Command { std: "docker" "start" "-a" "183bc3d5d41bbddb632b7e6fab4cbd491c11890e1d017b295e3267b270f81617", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.176
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling sha2 v0.10.9
[INFO] [stderr]    Compiling jobserver v0.1.34
[INFO] [stderr]    Compiling cc v1.2.39
[INFO] [stderr]    Compiling zstd-sys v2.0.16+zstd.1.5.7
[INFO] [stderr]    Compiling zstd-safe v7.2.4
[INFO] [stderr]    Compiling zstd v0.13.3
[INFO] [stderr]    Compiling zchunk v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `DataChunk` is never constructed
[INFO] [stdout]    --> src/format.rs:482:8
[INFO] [stdout]     |
[INFO] [stdout] 482 | struct DataChunk(Vec<u8>);
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.72s
[INFO] running `Command { std: "docker" "inspect" "183bc3d5d41bbddb632b7e6fab4cbd491c11890e1d017b295e3267b270f81617", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "183bc3d5d41bbddb632b7e6fab4cbd491c11890e1d017b295e3267b270f81617", kill_on_drop: false }`
[INFO] [stdout] 183bc3d5d41bbddb632b7e6fab4cbd491c11890e1d017b295e3267b270f81617
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b0037c206a6817cb5a06e950256e73f276c758c098e8dcc794a6345388ea261f
[INFO] running `Command { std: "docker" "start" "-a" "b0037c206a6817cb5a06e950256e73f276c758c098e8dcc794a6345388ea261f", kill_on_drop: false }`
[INFO] [stderr]    Compiling getrandom v0.3.3
[INFO] [stdout] warning: struct `DataChunk` is never constructed
[INFO] [stdout]    --> src/format.rs:482:8
[INFO] [stdout]     |
[INFO] [stdout] 482 | struct DataChunk(Vec<u8>);
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling tempfile v3.23.0
[INFO] [stderr]    Compiling zchunk v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `DataChunk` is never constructed
[INFO] [stdout]    --> src/format.rs:482:8
[INFO] [stdout]     |
[INFO] [stdout] 482 | struct DataChunk(Vec<u8>);
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.38s
[INFO] running `Command { std: "docker" "inspect" "b0037c206a6817cb5a06e950256e73f276c758c098e8dcc794a6345388ea261f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0037c206a6817cb5a06e950256e73f276c758c098e8dcc794a6345388ea261f", kill_on_drop: false }`
[INFO] [stdout] b0037c206a6817cb5a06e950256e73f276c758c098e8dcc794a6345388ea261f