[INFO] updating cached repository rust-lang/libc
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/rust-lang/libc
[INFO] [stderr]  * branch                HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/rust-lang/libc" "work/ex/beta-1.38-1/sources/1.37.0/gh/rust-lang/libc"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/rust-lang/libc'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/rust-lang/libc" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/rust-lang/libc"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/rust-lang/libc'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 2026c866673a84ad0cd63ac2d73a4f4c2df277ac
[INFO] sha for GitHub repo rust-lang/libc: 2026c866673a84ad0cd63ac2d73a4f4c2df277ac
[INFO] validating manifest of rust-lang/libc on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of rust-lang/libc on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing rust-lang/libc
[INFO] removed workspace from rust-lang/libc
[INFO] finished frobbing rust-lang/libc
[INFO] frobbed toml for rust-lang/libc written to work/ex/beta-1.38-1/sources/1.37.0/gh/rust-lang/libc/Cargo.toml
[INFO] started frobbing rust-lang/libc
[INFO] removed workspace from rust-lang/libc
[INFO] finished frobbing rust-lang/libc
[INFO] frobbed toml for rust-lang/libc written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/rust-lang/libc/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing rust-lang/libc against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/rust-lang/libc:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] a6ed8a0c7cccfa928b5030bee05d60b5545de8272e78ed89c95a41d3c0ac9873
[INFO] running `"docker" "start" "-a" "a6ed8a0c7cccfa928b5030bee05d60b5545de8272e78ed89c95a41d3c0ac9873"`
[INFO] [stderr]    Compiling libc v0.2.58 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.15s
[INFO] running `"docker" "inspect" "a6ed8a0c7cccfa928b5030bee05d60b5545de8272e78ed89c95a41d3c0ac9873"`
[INFO] running `"docker" "rm" "-f" "a6ed8a0c7cccfa928b5030bee05d60b5545de8272e78ed89c95a41d3c0ac9873"`
[INFO] [stdout] a6ed8a0c7cccfa928b5030bee05d60b5545de8272e78ed89c95a41d3c0ac9873
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/rust-lang/libc:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] a2cfc88ceffc5f08a81d96fe7a7eee9e72b7efe822bcb06e2b47e13a6e0444ac
[INFO] running `"docker" "start" "-a" "a2cfc88ceffc5f08a81d96fe7a7eee9e72b7efe822bcb06e2b47e13a6e0444ac"`
[INFO] [stderr]    Compiling libc v0.2.58 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.68s
[INFO] running `"docker" "inspect" "a2cfc88ceffc5f08a81d96fe7a7eee9e72b7efe822bcb06e2b47e13a6e0444ac"`
[INFO] running `"docker" "rm" "-f" "a2cfc88ceffc5f08a81d96fe7a7eee9e72b7efe822bcb06e2b47e13a6e0444ac"`
[INFO] [stdout] a2cfc88ceffc5f08a81d96fe7a7eee9e72b7efe822bcb06e2b47e13a6e0444ac
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/rust-lang/libc:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 72bde7ce7e96132685c8f007024a1257ec5b407cda8f4d0cc6f2fa7ef38989d5
[INFO] running `"docker" "start" "-a" "72bde7ce7e96132685c8f007024a1257ec5b407cda8f4d0cc6f2fa7ef38989d5"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/libc-0adfc983b8d39be2
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests libc
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "72bde7ce7e96132685c8f007024a1257ec5b407cda8f4d0cc6f2fa7ef38989d5"`
[INFO] running `"docker" "rm" "-f" "72bde7ce7e96132685c8f007024a1257ec5b407cda8f4d0cc6f2fa7ef38989d5"`
[INFO] [stdout] 72bde7ce7e96132685c8f007024a1257ec5b407cda8f4d0cc6f2fa7ef38989d5