[INFO] updating cached repository semahawk/page_replacement
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/semahawk/page_replacement
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/semahawk/page_replacement" "work/ex/beta-1.37-6/sources/1.36.0/gh/semahawk/page_replacement"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/semahawk/page_replacement'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/semahawk/page_replacement" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/semahawk/page_replacement"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/semahawk/page_replacement'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 23b35a253abd5dfe830aee205ed173dd1e38ad7f
[INFO] sha for GitHub repo semahawk/page_replacement: 23b35a253abd5dfe830aee205ed173dd1e38ad7f
[INFO] validating manifest of semahawk/page_replacement 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 semahawk/page_replacement 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 semahawk/page_replacement
[INFO] finished frobbing semahawk/page_replacement
[INFO] frobbed toml for semahawk/page_replacement written to work/ex/beta-1.37-6/sources/1.36.0/gh/semahawk/page_replacement/Cargo.toml
[INFO] started frobbing semahawk/page_replacement
[INFO] finished frobbing semahawk/page_replacement
[INFO] frobbed toml for semahawk/page_replacement written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/semahawk/page_replacement/Cargo.toml
[INFO] crate semahawk/page_replacement 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] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing semahawk/page_replacement 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-3/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/semahawk/page_replacement:/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] 57545363b6577caccae8f1220ad3a3c3d2b07182c8b2937b57e0a174381f7aa3
[INFO] running `"docker" "start" "-a" "57545363b6577caccae8f1220ad3a3c3d2b07182c8b2937b57e0a174381f7aa3"`
[INFO] [stderr]    Compiling page_replacement v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: field is never used: `swapped_to_disk`
[INFO] [stderr]   --> src/memory.rs:12:3
[INFO] [stderr]    |
[INFO] [stderr] 12 |   swapped_to_disk: bool,
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.14s
[INFO] running `"docker" "inspect" "57545363b6577caccae8f1220ad3a3c3d2b07182c8b2937b57e0a174381f7aa3"`
[INFO] running `"docker" "rm" "-f" "57545363b6577caccae8f1220ad3a3c3d2b07182c8b2937b57e0a174381f7aa3"`
[INFO] [stdout] 57545363b6577caccae8f1220ad3a3c3d2b07182c8b2937b57e0a174381f7aa3
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/semahawk/page_replacement:/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] 8f9930f357d1a6873c63edb03a1fded602ae9c62a46b055430f6c762667a1aa1
[INFO] running `"docker" "start" "-a" "8f9930f357d1a6873c63edb03a1fded602ae9c62a46b055430f6c762667a1aa1"`
[INFO] [stderr]    Compiling page_replacement v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: field is never used: `swapped_to_disk`
[INFO] [stderr]   --> src/memory.rs:12:3
[INFO] [stderr]    |
[INFO] [stderr] 12 |   swapped_to_disk: bool,
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.82s
[INFO] running `"docker" "inspect" "8f9930f357d1a6873c63edb03a1fded602ae9c62a46b055430f6c762667a1aa1"`
[INFO] running `"docker" "rm" "-f" "8f9930f357d1a6873c63edb03a1fded602ae9c62a46b055430f6c762667a1aa1"`
[INFO] [stdout] 8f9930f357d1a6873c63edb03a1fded602ae9c62a46b055430f6c762667a1aa1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/semahawk/page_replacement:/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] ab06c751902c722d3268bf649e1c0ef9993d31d812982b34feda8e0b49b4b7eb
[INFO] running `"docker" "start" "-a" "ab06c751902c722d3268bf649e1c0ef9993d31d812982b34feda8e0b49b4b7eb"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/page_replacement-7ef2518cc93170e8
[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" "ab06c751902c722d3268bf649e1c0ef9993d31d812982b34feda8e0b49b4b7eb"`
[INFO] running `"docker" "rm" "-f" "ab06c751902c722d3268bf649e1c0ef9993d31d812982b34feda8e0b49b4b7eb"`
[INFO] [stdout] ab06c751902c722d3268bf649e1c0ef9993d31d812982b34feda8e0b49b4b7eb