[INFO] updating cached repository gluaxspeed/spreader
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/gluaxspeed/spreader
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/gluaxspeed/spreader" "work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/gluaxspeed/spreader"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/gluaxspeed/spreader'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/gluaxspeed/spreader" "work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/gluaxspeed/spreader"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/gluaxspeed/spreader'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 93a91a36aa3d9b9b5104c7dd8273a9b5a91e5d02
[INFO] sha for GitHub repo gluaxspeed/spreader: 93a91a36aa3d9b9b5104c7dd8273a9b5a91e5d02
[INFO] validating manifest of gluaxspeed/spreader on toolchain master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of gluaxspeed/spreader on toolchain try#7fea0229842e79db1159ea58ad9a653b288efee9
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing gluaxspeed/spreader
[INFO] finished frobbing gluaxspeed/spreader
[INFO] frobbed toml for gluaxspeed/spreader written to work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/gluaxspeed/spreader/Cargo.toml
[INFO] started frobbing gluaxspeed/spreader
[INFO] finished frobbing gluaxspeed/spreader
[INFO] frobbed toml for gluaxspeed/spreader written to work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/gluaxspeed/spreader/Cargo.toml
[INFO] crate gluaxspeed/spreader has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing gluaxspeed/spreader against try#7fea0229842e79db1159ea58ad9a653b288efee9 for pr-57967
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-4/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/gluaxspeed/spreader:/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=forbid" "-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" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "build" "--frozen"`
[INFO] [stdout] 20112cfbf0362593bdf5f8e6b9098eaa6089f349f90d5abe5f42827cacfabc15
[INFO] running `"docker" "start" "-a" "20112cfbf0362593bdf5f8e6b9098eaa6089f349f90d5abe5f42827cacfabc15"`
[INFO] [stderr]    Compiling serde v1.0.29
[INFO] [stderr]    Compiling backtrace-sys v0.1.16
[INFO] [stderr]    Compiling regex-syntax v0.5.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.4.0
[INFO] [stderr]    Compiling syn v0.12.14
[INFO] [stderr]    Compiling cssparser v0.23.2
[INFO] [stderr]    Compiling chrono v0.4.0
[INFO] [stderr]    Compiling string_cache_codegen v0.4.0
[INFO] [stderr]    Compiling selectors v0.19.0
[INFO] [stderr]    Compiling crossbeam-deque v0.3.0
[INFO] [stderr]    Compiling string_cache v0.7.1
[INFO] [stderr]    Compiling tokio-threadpool v0.1.0
[INFO] [stderr]    Compiling tokio v0.1.3
[INFO] [stderr]    Compiling tokio-core v0.1.14
[INFO] [stderr]    Compiling regex v0.2.7
[INFO] [stderr]    Compiling serde_json v1.0.10
[INFO] [stderr]    Compiling serde_urlencoded v0.5.1
[INFO] [stderr]    Compiling toml v0.4.5
[INFO] [stderr]    Compiling tokio-proto v0.1.1
[INFO] [stderr]    Compiling tokio-tls v0.1.4
[INFO] [stderr]    Compiling hyper v0.11.22
[INFO] [stderr]    Compiling backtrace v0.3.5
[INFO] [stderr]    Compiling serde_derive_internals v0.20.0
[INFO] [stderr]    Compiling cssparser-macros v0.3.2
[INFO] [stderr]    Compiling failure v0.1.1
[INFO] [stderr]    Compiling quick-xml v0.12.1
[INFO] [stderr]    Compiling serde_derive v1.0.29
[INFO] [stderr]    Compiling hyper-tls v0.1.2
[INFO] [stderr]    Compiling reqwest v0.8.5
[INFO] [stderr]    Compiling markup5ever v0.7.2
[INFO] [stderr]    Compiling rss v1.4.0
[INFO] [stderr]    Compiling html5ever v0.22.0
[INFO] [stderr]    Compiling scraper v0.6.0
[INFO] [stderr]    Compiling backend v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: function is never used: `write_tracker`
[INFO] [stderr]    --> src/main.rs:145:1
[INFO] [stderr]     |
[INFO] [stderr] 145 | fn write_tracker<T: std::string::ToString>(path: &str, index: T) {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 35s
[INFO] running `"docker" "inspect" "20112cfbf0362593bdf5f8e6b9098eaa6089f349f90d5abe5f42827cacfabc15"`
[INFO] running `"docker" "rm" "-f" "20112cfbf0362593bdf5f8e6b9098eaa6089f349f90d5abe5f42827cacfabc15"`
[INFO] [stdout] 20112cfbf0362593bdf5f8e6b9098eaa6089f349f90d5abe5f42827cacfabc15
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-4/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/gluaxspeed/spreader:/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=forbid" "-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" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "test" "--frozen" "--no-run"`
[INFO] [stdout] cc7673615a84a87fd0aa9547b9ea66c5f91b9d6cf7eab5b79b9aa960aa263407
[INFO] running `"docker" "start" "-a" "cc7673615a84a87fd0aa9547b9ea66c5f91b9d6cf7eab5b79b9aa960aa263407"`
[INFO] [stderr]    Compiling backend v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: function is never used: `write_tracker`
[INFO] [stderr]    --> src/main.rs:145:1
[INFO] [stderr]     |
[INFO] [stderr] 145 | fn write_tracker<T: std::string::ToString>(path: &str, index: T) {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.29s
[INFO] running `"docker" "inspect" "cc7673615a84a87fd0aa9547b9ea66c5f91b9d6cf7eab5b79b9aa960aa263407"`
[INFO] running `"docker" "rm" "-f" "cc7673615a84a87fd0aa9547b9ea66c5f91b9d6cf7eab5b79b9aa960aa263407"`
[INFO] [stdout] cc7673615a84a87fd0aa9547b9ea66c5f91b9d6cf7eab5b79b9aa960aa263407
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-4/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/gluaxspeed/spreader:/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=forbid" "-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" "+7fea0229842e79db1159ea58ad9a653b288efee9-alt" "test" "--frozen"`
[INFO] [stdout] 871df19059d73f1e194c4777c423ca732bf9fee677ec0236e9e2c84a1e428f2f
[INFO] running `"docker" "start" "-a" "871df19059d73f1e194c4777c423ca732bf9fee677ec0236e9e2c84a1e428f2f"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.24s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/backend-1d2bdabe63c598ba
[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" "871df19059d73f1e194c4777c423ca732bf9fee677ec0236e9e2c84a1e428f2f"`
[INFO] running `"docker" "rm" "-f" "871df19059d73f1e194c4777c423ca732bf9fee677ec0236e9e2c84a1e428f2f"`
[INFO] [stdout] 871df19059d73f1e194c4777c423ca732bf9fee677ec0236e9e2c84a1e428f2f