[INFO] updating cached repository grahamc/nixos-activation
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/grahamc/nixos-activation
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/grahamc/nixos-activation" "work/ex/beta-1.38-1/sources/1.37.0/gh/grahamc/nixos-activation"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/grahamc/nixos-activation'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/grahamc/nixos-activation" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/grahamc/nixos-activation"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/grahamc/nixos-activation'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e210e7cf077918b35430ea55ed807a8b8dc0456e
[INFO] sha for GitHub repo grahamc/nixos-activation: e210e7cf077918b35430ea55ed807a8b8dc0456e
[INFO] validating manifest of grahamc/nixos-activation 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 grahamc/nixos-activation 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 grahamc/nixos-activation
[INFO] finished frobbing grahamc/nixos-activation
[INFO] frobbed toml for grahamc/nixos-activation written to work/ex/beta-1.38-1/sources/1.37.0/gh/grahamc/nixos-activation/Cargo.toml
[INFO] started frobbing grahamc/nixos-activation
[INFO] finished frobbing grahamc/nixos-activation
[INFO] frobbed toml for grahamc/nixos-activation written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/grahamc/nixos-activation/Cargo.toml
[INFO] crate grahamc/nixos-activation 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] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing grahamc/nixos-activation 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-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/grahamc/nixos-activation:/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] e1625be2579070c44339195030b88d703b6d3e043813d976c71d08ecaf34cc32
[INFO] running `"docker" "start" "-a" "e1625be2579070c44339195030b88d703b6d3e043813d976c71d08ecaf34cc32"`
[INFO] [stderr]    Compiling regex v1.0.6
[INFO] [stderr]    Compiling activate v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: function is never used: `parse_fstab_line`
[INFO] [stderr]   --> src/fstab.rs:56:1
[INFO] [stderr]    |
[INFO] [stderr] 56 | pub fn parse_fstab_line<'a>(fstab: &'a str) -> Option<FSTabEntry<'a>> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parse_fstab`
[INFO] [stderr]   --> src/fstab.rs:86:1
[INFO] [stderr]    |
[INFO] [stderr] 86 | pub fn parse_fstab<'a, T: Iterator<Item = &'a str>>(fstab_lines: T) -> FSTabFile<'a> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.50s
[INFO] running `"docker" "inspect" "e1625be2579070c44339195030b88d703b6d3e043813d976c71d08ecaf34cc32"`
[INFO] running `"docker" "rm" "-f" "e1625be2579070c44339195030b88d703b6d3e043813d976c71d08ecaf34cc32"`
[INFO] [stdout] e1625be2579070c44339195030b88d703b6d3e043813d976c71d08ecaf34cc32
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/grahamc/nixos-activation:/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] d1160ec80740689b29882df2970a4f6f4a017fcb6753503fbf1e008f5dbff53e
[INFO] running `"docker" "start" "-a" "d1160ec80740689b29882df2970a4f6f4a017fcb6753503fbf1e008f5dbff53e"`
[INFO] [stderr]    Compiling activate v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.06s
[INFO] running `"docker" "inspect" "d1160ec80740689b29882df2970a4f6f4a017fcb6753503fbf1e008f5dbff53e"`
[INFO] running `"docker" "rm" "-f" "d1160ec80740689b29882df2970a4f6f4a017fcb6753503fbf1e008f5dbff53e"`
[INFO] [stdout] d1160ec80740689b29882df2970a4f6f4a017fcb6753503fbf1e008f5dbff53e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/grahamc/nixos-activation:/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] a5c1f8e52328c3440941e17d1e11c4d8d08a510cf2fad9ce5c56ac22b5a199ef
[INFO] running `"docker" "start" "-a" "a5c1f8e52328c3440941e17d1e11c4d8d08a510cf2fad9ce5c56ac22b5a199ef"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/activate-16ba226405ca70dc
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test fstab::tests::parse_fstab_utillinux_fstab ... ok
[INFO] [stdout] test fstab::tests::parse_fstab_morbo ... ok
[INFO] [stdout] test fstab::tests::parse_fstab_line_valid_swap ... ok
[INFO] [stdout] test fstab::tests::parse_fstab_line_valid_default_opts ... ok
[INFO] [stdout] test fstab::tests::parse_fstab_line_valid ... ok
[INFO] [stdout] test fstab::tests::parse_fstab_line_invalid_too_many_fields ... ok
[INFO] [stdout] test fstab::tests::parse_fstab_line_comment ... ok
[INFO] [stdout] test fstab::tests::parse_fstab_utillinux_fstab_broken ... ok
[INFO] [stdout] test fstab::tests::parse_fstab_utillinux_fstab_comment ... ok
[INFO] [stdout] test fstab::tests::parse_fstab_comments_and_blank_lines ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "a5c1f8e52328c3440941e17d1e11c4d8d08a510cf2fad9ce5c56ac22b5a199ef"`
[INFO] running `"docker" "rm" "-f" "a5c1f8e52328c3440941e17d1e11c4d8d08a510cf2fad9ce5c56ac22b5a199ef"`
[INFO] [stdout] a5c1f8e52328c3440941e17d1e11c4d8d08a510cf2fad9ce5c56ac22b5a199ef