[INFO] updating cached repository diserere/rust-test-coverage
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/diserere/rust-test-coverage
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/diserere/rust-test-coverage" "work/ex/beta-1.37-6/sources/1.36.0/gh/diserere/rust-test-coverage"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/diserere/rust-test-coverage'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/diserere/rust-test-coverage" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/diserere/rust-test-coverage"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/diserere/rust-test-coverage'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e27be5ebabfeb783ddb9905602dd090c4137c8cb
[INFO] sha for GitHub repo diserere/rust-test-coverage: e27be5ebabfeb783ddb9905602dd090c4137c8cb
[INFO] validating manifest of diserere/rust-test-coverage on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of diserere/rust-test-coverage on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing diserere/rust-test-coverage
[INFO] finished frobbing diserere/rust-test-coverage
[INFO] frobbed toml for diserere/rust-test-coverage written to work/ex/beta-1.37-6/sources/1.36.0/gh/diserere/rust-test-coverage/Cargo.toml
[INFO] started frobbing diserere/rust-test-coverage
[INFO] finished frobbing diserere/rust-test-coverage
[INFO] frobbed toml for diserere/rust-test-coverage written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/diserere/rust-test-coverage/Cargo.toml
[INFO] crate diserere/rust-test-coverage already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing diserere/rust-test-coverage against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/diserere/rust-test-coverage:/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" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 6ab1b3b42ae10c719e6982dc3ddae349e81c1bfe075464e41188e6932dcee938
[INFO] running `"docker" "start" "-a" "6ab1b3b42ae10c719e6982dc3ddae349e81c1bfe075464e41188e6932dcee938"`
[INFO] [stderr]    Compiling test_cov_kcov v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.74s
[INFO] running `"docker" "inspect" "6ab1b3b42ae10c719e6982dc3ddae349e81c1bfe075464e41188e6932dcee938"`
[INFO] running `"docker" "rm" "-f" "6ab1b3b42ae10c719e6982dc3ddae349e81c1bfe075464e41188e6932dcee938"`
[INFO] [stdout] 6ab1b3b42ae10c719e6982dc3ddae349e81c1bfe075464e41188e6932dcee938
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/diserere/rust-test-coverage:/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" "+beta-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] a2b13990336dcee1036a81e213349e3e97828c824804c0123731cc6e543c7750
[INFO] running `"docker" "start" "-a" "a2b13990336dcee1036a81e213349e3e97828c824804c0123731cc6e543c7750"`
[INFO] [stderr]    Compiling test_cov_kcov v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `super::*`
[INFO] [stderr]   --> src/main.rs:35:6
[INFO] [stderr]    |
[INFO] [stderr] 35 |     use super::*;
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.22s
[INFO] running `"docker" "inspect" "a2b13990336dcee1036a81e213349e3e97828c824804c0123731cc6e543c7750"`
[INFO] running `"docker" "rm" "-f" "a2b13990336dcee1036a81e213349e3e97828c824804c0123731cc6e543c7750"`
[INFO] [stdout] a2b13990336dcee1036a81e213349e3e97828c824804c0123731cc6e543c7750
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/diserere/rust-test-coverage:/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" "+beta-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 269b94ecbd29e8f12ac66fc1a5c861eecc6e6be0f17ceac2e1028777db63f234
[INFO] running `"docker" "start" "-a" "269b94ecbd29e8f12ac66fc1a5c861eecc6e6be0f17ceac2e1028777db63f234"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/test_cov_kcov-b4d8ba27a898138a
[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] [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]      Running /opt/crater/target/debug/deps/test_all-c73360cdba18cf5f
[INFO] running `"docker" "inspect" "269b94ecbd29e8f12ac66fc1a5c861eecc6e6be0f17ceac2e1028777db63f234"`
[INFO] running `"docker" "rm" "-f" "269b94ecbd29e8f12ac66fc1a5c861eecc6e6be0f17ceac2e1028777db63f234"`
[INFO] [stdout] 269b94ecbd29e8f12ac66fc1a5c861eecc6e6be0f17ceac2e1028777db63f234