[INFO] updating cached repository gifnksm/lcov
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/gifnksm/lcov
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/gifnksm/lcov" "work/ex/beta-1.38-1/sources/1.37.0/gh/gifnksm/lcov"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/gifnksm/lcov'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/gifnksm/lcov" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/gifnksm/lcov"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/gifnksm/lcov'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ef534ea5b588252e484b496fee03f8f313e034b3
[INFO] sha for GitHub repo gifnksm/lcov: ef534ea5b588252e484b496fee03f8f313e034b3
[INFO] validating manifest of gifnksm/lcov 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 gifnksm/lcov 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 gifnksm/lcov
[INFO] removed workspace from gifnksm/lcov
[INFO] removed path dependency lcov from gifnksm/lcov
[INFO] finished frobbing gifnksm/lcov
[INFO] frobbed toml for gifnksm/lcov written to work/ex/beta-1.38-1/sources/1.37.0/gh/gifnksm/lcov/Cargo.toml
[INFO] started frobbing gifnksm/lcov
[INFO] removed workspace from gifnksm/lcov
[INFO] removed path dependency lcov from gifnksm/lcov
[INFO] finished frobbing gifnksm/lcov
[INFO] frobbed toml for gifnksm/lcov written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/gifnksm/lcov/Cargo.toml
[INFO] crate gifnksm/lcov already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/gifnksm/lcov/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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] [stderr]     Blocking waiting for file lock on package cache
[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 gifnksm/lcov 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-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/gifnksm/lcov:/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] 4f72124062acb5d5b2292606ad8c55bdf14fe1921fdd9a932799c5f1920faaf7
[INFO] running `"docker" "start" "-a" "4f72124062acb5d5b2292606ad8c55bdf14fe1921fdd9a932799c5f1920faaf7"`
[INFO] [stderr]    Compiling libc v0.2.63
[INFO] [stderr]    Compiling structopt-derive v0.2.18
[INFO] [stderr]    Compiling backtrace-sys v0.1.31
[INFO] [stderr]    Compiling atty v0.2.13
[INFO] [stderr]    Compiling backtrace v0.3.35
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling failure v0.1.5
[INFO] [stderr]    Compiling lcov v0.5.0
[INFO] [stderr]    Compiling structopt v0.2.18
[INFO] [stderr]    Compiling lcov-util v0.1.4 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 31.59s
[INFO] running `"docker" "inspect" "4f72124062acb5d5b2292606ad8c55bdf14fe1921fdd9a932799c5f1920faaf7"`
[INFO] running `"docker" "rm" "-f" "4f72124062acb5d5b2292606ad8c55bdf14fe1921fdd9a932799c5f1920faaf7"`
[INFO] [stdout] 4f72124062acb5d5b2292606ad8c55bdf14fe1921fdd9a932799c5f1920faaf7
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/gifnksm/lcov:/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] d957bb2d806ec008b7ef8123eb95cd80b3eb1b638ed63d64e49052f5503fd5bd
[INFO] running `"docker" "start" "-a" "d957bb2d806ec008b7ef8123eb95cd80b3eb1b638ed63d64e49052f5503fd5bd"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling lcov-util v0.1.4 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.15s
[INFO] running `"docker" "inspect" "d957bb2d806ec008b7ef8123eb95cd80b3eb1b638ed63d64e49052f5503fd5bd"`
[INFO] running `"docker" "rm" "-f" "d957bb2d806ec008b7ef8123eb95cd80b3eb1b638ed63d64e49052f5503fd5bd"`
[INFO] [stdout] d957bb2d806ec008b7ef8123eb95cd80b3eb1b638ed63d64e49052f5503fd5bd
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/gifnksm/lcov:/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] 97249bad919b51ecab86d6ef98b0690e4ded00fd8bb1a4c8c84be8c1ebee89eb
[INFO] running `"docker" "start" "-a" "97249bad919b51ecab86d6ef98b0690e4ded00fd8bb1a4c8c84be8c1ebee89eb"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/lcov_merge-d68349e21dd97b18
[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" "97249bad919b51ecab86d6ef98b0690e4ded00fd8bb1a4c8c84be8c1ebee89eb"`
[INFO] running `"docker" "rm" "-f" "97249bad919b51ecab86d6ef98b0690e4ded00fd8bb1a4c8c84be8c1ebee89eb"`
[INFO] [stdout] 97249bad919b51ecab86d6ef98b0690e4ded00fd8bb1a4c8c84be8c1ebee89eb