[INFO] updating cached repository stepchowfun/tagref
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/stepchowfun/tagref
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/stepchowfun/tagref" "work/ex/beta-1.37-6/sources/1.36.0/gh/stepchowfun/tagref"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/stepchowfun/tagref'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/stepchowfun/tagref" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/stepchowfun/tagref"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/stepchowfun/tagref'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f59ab81580f320af85ab798a823649b88a6bdec2
[INFO] sha for GitHub repo stepchowfun/tagref: f59ab81580f320af85ab798a823649b88a6bdec2
[INFO] validating manifest of stepchowfun/tagref 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 stepchowfun/tagref 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 stepchowfun/tagref
[INFO] finished frobbing stepchowfun/tagref
[INFO] frobbed toml for stepchowfun/tagref written to work/ex/beta-1.37-6/sources/1.36.0/gh/stepchowfun/tagref/Cargo.toml
[INFO] started frobbing stepchowfun/tagref
[INFO] finished frobbing stepchowfun/tagref
[INFO] frobbed toml for stepchowfun/tagref written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/stepchowfun/tagref/Cargo.toml
[INFO] crate stepchowfun/tagref 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 stepchowfun/tagref against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/stepchowfun/tagref:/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] 83ac30874547784ef93541257e3d3fb1e7a2bb4317ec72cd73a39438f9793666
[INFO] running `"docker" "start" "-a" "83ac30874547784ef93541257e3d3fb1e7a2bb4317ec72cd73a39438f9793666"`
[INFO] [stderr]    Compiling term_size v0.3.1
[INFO] [stderr]    Compiling globset v0.4.2
[INFO] [stderr]    Compiling textwrap v0.10.0
[INFO] [stderr]    Compiling clap v2.32.0
[INFO] [stderr]    Compiling ignore v0.4.6
[INFO] [stderr]    Compiling tagref v1.2.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 25.83s
[INFO] running `"docker" "inspect" "83ac30874547784ef93541257e3d3fb1e7a2bb4317ec72cd73a39438f9793666"`
[INFO] running `"docker" "rm" "-f" "83ac30874547784ef93541257e3d3fb1e7a2bb4317ec72cd73a39438f9793666"`
[INFO] [stdout] 83ac30874547784ef93541257e3d3fb1e7a2bb4317ec72cd73a39438f9793666
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/stepchowfun/tagref:/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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 556bf2e1b1ab114775b4419b5d447463026a175650b47374e308b465f5b8555c
[INFO] running `"docker" "start" "-a" "556bf2e1b1ab114775b4419b5d447463026a175650b47374e308b465f5b8555c"`
[INFO] [stderr]    Compiling tagref v1.2.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.28s
[INFO] running `"docker" "inspect" "556bf2e1b1ab114775b4419b5d447463026a175650b47374e308b465f5b8555c"`
[INFO] running `"docker" "rm" "-f" "556bf2e1b1ab114775b4419b5d447463026a175650b47374e308b465f5b8555c"`
[INFO] [stdout] 556bf2e1b1ab114775b4419b5d447463026a175650b47374e308b465f5b8555c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/stepchowfun/tagref:/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" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] f02a885bb9ea99209e2b581d8efec30de1162e6add5d04ab40ab2c334ed1b38d
[INFO] running `"docker" "start" "-a" "f02a885bb9ea99209e2b581d8efec30de1162e6add5d04ab40ab2c334ed1b38d"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/tagref-ad367ecf3488cba0
[INFO] [stdout] 
[INFO] [stdout] running 16 tests
[INFO] [stdout] test count::tests::count_one ... ok
[INFO] [stdout] test citations::tests::check_ok ... ok
[INFO] [stdout] test citations::tests::check_empty ... ok
[INFO] [stdout] test count::tests::count_two ... ok
[INFO] [stdout] test duplicates::tests::check_no_dupes ... ok
[INFO] [stdout] test count::tests::count_zero ... ok
[INFO] [stdout] test duplicates::tests::check_empty ... ok
[INFO] [stdout] test citations::tests::check_missing ... ok
[INFO] [stdout] test duplicates::tests::check_dupes ... ok
[INFO] [stdout] test label::tests::parse_empty ... ok
[INFO] [stdout] test label::tests::parse_whitespace ... ok
[INFO] [stdout] test label::tests::parse_tag_basic ... ok
[INFO] [stdout] test label::tests::parse_multiple_lines ... ok
[INFO] [stdout] test label::tests::parse_case ... ok
[INFO] [stdout] test label::tests::parse_ref_basic ... ok
[INFO] [stdout] test label::tests::parse_multiple_per_line ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 16 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "f02a885bb9ea99209e2b581d8efec30de1162e6add5d04ab40ab2c334ed1b38d"`
[INFO] running `"docker" "rm" "-f" "f02a885bb9ea99209e2b581d8efec30de1162e6add5d04ab40ab2c334ed1b38d"`
[INFO] [stdout] f02a885bb9ea99209e2b581d8efec30de1162e6add5d04ab40ab2c334ed1b38d