[INFO] fetching crate r2sync 0.0.4...
[INFO] building r2sync-0.0.4 against try#4987e9d4227139400384ab59296ffee3b0fb1183 for pr-146237-2
[INFO] extracting crate r2sync 0.0.4 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate r2sync 0.0.4
[INFO] finished tweaking crates.io crate r2sync 0.0.4
[INFO] tweaked toml for crates.io crate r2sync 0.0.4 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate r2sync 0.0.4 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] crate crates.io crate r2sync 0.0.4 already has a lockfile, it will not be regenerated
[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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] cb4d99b320317c41968b9aaa2bcbd32e2841c3f73986272647f4316ca5ed2edb
[INFO] running `Command { std: "docker" "start" "-a" "cb4d99b320317c41968b9aaa2bcbd32e2841c3f73986272647f4316ca5ed2edb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cb4d99b320317c41968b9aaa2bcbd32e2841c3f73986272647f4316ca5ed2edb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb4d99b320317c41968b9aaa2bcbd32e2841c3f73986272647f4316ca5ed2edb", kill_on_drop: false }`
[INFO] [stdout] cb4d99b320317c41968b9aaa2bcbd32e2841c3f73986272647f4316ca5ed2edb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 102b0f29aed0491cf8e7ead7aad023dd73f698051ce2f7e536f522fa240caf65
[INFO] running `Command { std: "docker" "start" "-a" "102b0f29aed0491cf8e7ead7aad023dd73f698051ce2f7e536f522fa240caf65", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.159
[INFO] [stderr]    Compiling proc-macro2 v1.0.87
[INFO] [stderr]    Compiling bytes v1.7.2
[INFO] [stderr]    Compiling cc v1.1.30
[INFO] [stderr]    Compiling subtle v2.6.1
[INFO] [stderr]    Compiling tracing-core v0.1.32
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling allocator-api2 v0.2.18
[INFO] [stderr]    Compiling foldhash v0.1.3
[INFO] [stderr]    Compiling vsimd v0.8.0
[INFO] [stderr]    Compiling outref v0.5.1
[INFO] [stderr]    Compiling semver v1.0.23
[INFO] [stderr]    Compiling time v0.3.36
[INFO] [stderr]    Compiling log v0.4.22
[INFO] [stderr]    Compiling der v0.6.1
[INFO] [stderr]    Compiling base64ct v1.6.0
[INFO] [stderr]    Compiling digest v0.10.7
[INFO] [stderr]    Compiling rustls v0.21.12
[INFO] [stderr]    Compiling base16ct v0.1.1
[INFO] [stderr]    Compiling hashbrown v0.15.0
[INFO] [stderr]    Compiling openssl v0.10.66
[INFO] [stderr]    Compiling tinyvec v1.8.0
[INFO] [stderr]    Compiling base64-simd v0.8.0
[INFO] [stderr]    Compiling http v1.1.0
[INFO] [stderr]    Compiling http v0.2.12
[INFO] [stderr]    Compiling bytes-utils v0.1.4
[INFO] [stderr]    Compiling rustc_version v0.4.1
[INFO] [stderr]    Compiling hmac v0.12.1
[INFO] [stderr]    Compiling sha2 v0.10.8
[INFO] [stderr] error: could not compile `cc` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/4987e9d4227139400384ab59296ffee3b0fb1183/bin/rustc --crate-name cc --edition=2018 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/cc-1.1.30/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("jobserver", "parallel"))' -C metadata=620ed2de6c6d8539 -C extra-filename=-5bad2afce82508b3 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern shlex=/opt/rustwide/target/debug/deps/libshlex-258c8bec04b9d869.rmeta --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "102b0f29aed0491cf8e7ead7aad023dd73f698051ce2f7e536f522fa240caf65", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "102b0f29aed0491cf8e7ead7aad023dd73f698051ce2f7e536f522fa240caf65", kill_on_drop: false }`
[INFO] [stdout] 102b0f29aed0491cf8e7ead7aad023dd73f698051ce2f7e536f522fa240caf65