[INFO] updating cached repository jthornber/lvm-rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/jthornber/lvm-rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/jthornber/lvm-rust" "work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/jthornber/lvm-rust"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/jthornber/lvm-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/jthornber/lvm-rust" "work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/jthornber/lvm-rust"`
[INFO] [stderr] Cloning into 'work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/jthornber/lvm-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 4084c73fbcfea9d4844171da65f25abaef331c64
[INFO] sha for GitHub repo jthornber/lvm-rust: 4084c73fbcfea9d4844171da65f25abaef331c64
[INFO] validating manifest of jthornber/lvm-rust 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 jthornber/lvm-rust 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 jthornber/lvm-rust
[INFO] finished frobbing jthornber/lvm-rust
[INFO] frobbed toml for jthornber/lvm-rust written to work/ex/pr-57967/sources/master#c1c3c4e95b69dfeaca5c5db6c622d7f90ad30a54/gh/jthornber/lvm-rust/Cargo.toml
[INFO] started frobbing jthornber/lvm-rust
[INFO] finished frobbing jthornber/lvm-rust
[INFO] frobbed toml for jthornber/lvm-rust written to work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/jthornber/lvm-rust/Cargo.toml
[INFO] crate jthornber/lvm-rust 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 jthornber/lvm-rust against try#7fea0229842e79db1159ea58ad9a653b288efee9 for pr-57967
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-1/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/jthornber/lvm-rust:/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] 7f19168103ea7dbb178d52206696f46727b114190a5884b1192e717202e5a9cf
[INFO] running `"docker" "start" "-a" "7f19168103ea7dbb178d52206696f46727b114190a5884b1192e717202e5a9cf"`
[INFO] [stderr]    Compiling clap v2.18.0
[INFO] [stderr]    Compiling nix v0.7.0
[INFO] [stderr]    Compiling regex v0.1.80
[INFO] [stderr]    Compiling env_logger v0.3.5
[INFO] [stderr]    Compiling lvm-rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unknown lint: `used_underscore_binding`
[INFO] [stderr]   --> src/device_mapper/low_level.rs:10:10
[INFO] [stderr]    |
[INFO] [stderr] 10 | #![allow(used_underscore_binding)]
[INFO] [stderr]    |          ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unknown_lints)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unknown lint: `if_not_else`
[INFO] [stderr]   --> src/device_mapper/low_level.rs:11:10
[INFO] [stderr]    |
[INFO] [stderr] 11 | #![allow(if_not_else)]
[INFO] [stderr]    |          ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: borrow of packed field is unsafe and requires unsafe function or block (error E0133)
[INFO] [stderr]    --> src/device_mapper/low_level.rs:499:9
[INFO] [stderr]     |
[INFO] [stderr] 499 |         header.flags.insert(DM_SUSPEND);
[INFO] [stderr]     |         ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(safe_packed_borrows)] on by default
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stderr]     = note: fields of packed structs might be misaligned: dereferencing a misaligned pointer or even just creating a misaligned reference is undefined behavior
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 22.14s
[INFO] running `"docker" "inspect" "7f19168103ea7dbb178d52206696f46727b114190a5884b1192e717202e5a9cf"`
[INFO] running `"docker" "rm" "-f" "7f19168103ea7dbb178d52206696f46727b114190a5884b1192e717202e5a9cf"`
[INFO] [stdout] 7f19168103ea7dbb178d52206696f46727b114190a5884b1192e717202e5a9cf
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-1/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/jthornber/lvm-rust:/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] 8cf0e93a7ef952ce41f120afd074117e52ffd320d2b67dc8aed431e73659d111
[INFO] running `"docker" "start" "-a" "8cf0e93a7ef952ce41f120afd074117e52ffd320d2b67dc8aed431e73659d111"`
[INFO] [stderr]    Compiling lvm-rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unknown lint: `used_underscore_binding`
[INFO] [stderr]   --> src/device_mapper/low_level.rs:10:10
[INFO] [stderr]    |
[INFO] [stderr] 10 | #![allow(used_underscore_binding)]
[INFO] [stderr]    |          ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unknown_lints)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unknown lint: `if_not_else`
[INFO] [stderr]   --> src/device_mapper/low_level.rs:11:10
[INFO] [stderr]    |
[INFO] [stderr] 11 | #![allow(if_not_else)]
[INFO] [stderr]    |          ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: borrow of packed field is unsafe and requires unsafe function or block (error E0133)
[INFO] [stderr]    --> src/device_mapper/low_level.rs:499:9
[INFO] [stderr]     |
[INFO] [stderr] 499 |         header.flags.insert(DM_SUSPEND);
[INFO] [stderr]     |         ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(safe_packed_borrows)] on by default
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stderr]     = note: fields of packed structs might be misaligned: dereferencing a misaligned pointer or even just creating a misaligned reference is undefined behavior
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.04s
[INFO] running `"docker" "inspect" "8cf0e93a7ef952ce41f120afd074117e52ffd320d2b67dc8aed431e73659d111"`
[INFO] running `"docker" "rm" "-f" "8cf0e93a7ef952ce41f120afd074117e52ffd320d2b67dc8aed431e73659d111"`
[INFO] [stdout] 8cf0e93a7ef952ce41f120afd074117e52ffd320d2b67dc8aed431e73659d111
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57967/worker-1/try#7fea0229842e79db1159ea58ad9a653b288efee9:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57967/sources/try#7fea0229842e79db1159ea58ad9a653b288efee9/gh/jthornber/lvm-rust:/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] c200a7ce52f6d63557c977184204d657405eb64f2bb3eb4a08a2662d85cbc373
[INFO] running `"docker" "start" "-a" "c200a7ce52f6d63557c977184204d657405eb64f2bb3eb4a08a2662d85cbc373"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/lvm_rust-d278f1490ad61c6e
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test device_mapper::utils::tests::test_parse_majors ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "c200a7ce52f6d63557c977184204d657405eb64f2bb3eb4a08a2662d85cbc373"`
[INFO] running `"docker" "rm" "-f" "c200a7ce52f6d63557c977184204d657405eb64f2bb3eb4a08a2662d85cbc373"`
[INFO] [stdout] c200a7ce52f6d63557c977184204d657405eb64f2bb3eb4a08a2662d85cbc373