[INFO] updating cached repository https://github.com/jthornber/lvm-rust
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 4084c73fbcfea9d4844171da65f25abaef331c64
[INFO] testing jthornber/lvm-rust against 1.38.0 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjthornber%2Flvm-rust" "work/builds/worker-3/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jthornber/lvm-rust on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/jthornber/lvm-rust
[INFO] finished tweaking git repo https://github.com/jthornber/lvm-rust
[INFO] tweaked toml for git repo https://github.com/jthornber/lvm-rust written to work/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/jthornber/lvm-rust already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] dd2ba428b1e699d756e17f207f9d0a518d42213b12ccfa51e936e45f9946578b
[INFO] running `"docker" "start" "-a" "dd2ba428b1e699d756e17f207f9d0a518d42213b12ccfa51e936e45f9946578b"`
[INFO] [stderr]    Compiling yaml-rust v0.3.4
[INFO] [stderr]    Compiling nix v0.7.0
[INFO] [stderr]    Compiling clap v2.18.0
[INFO] [stderr]    Compiling lvm-rust v0.1.0 (/opt/rustwide/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: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/device_mapper/high_level.rs:13:22
[INFO] [stderr]    |
[INFO] [stderr] 13 |     targets: Vec<Box<Target + 'a>>
[INFO] [stderr]    |                      ^^^^^^^^^^^ help: use `dyn`: `dyn Target + 'a`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/device_mapper/utils.rs:9:30
[INFO] [stderr]   |
[INFO] [stderr] 9 | fn parse_majors(reader: &mut std::io::BufRead) -> Option<Vec<u32>> {
[INFO] [stderr]   |                              ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::io::BufRead`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:54:63
[INFO] [stderr]    |
[INFO] [stderr] 54 | fn scenario_basic_overwrite_linear(cfg: &TestConfig, dm: &mut DMInterface) -> io::Result<()> {
[INFO] [stderr]    |                                                               ^^^^^^^^^^^ help: use `dyn`: `dyn DMInterface`
[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 9.20s
[INFO] running `"docker" "inspect" "dd2ba428b1e699d756e17f207f9d0a518d42213b12ccfa51e936e45f9946578b"`
[INFO] running `"docker" "rm" "-f" "dd2ba428b1e699d756e17f207f9d0a518d42213b12ccfa51e936e45f9946578b"`
[INFO] [stdout] dd2ba428b1e699d756e17f207f9d0a518d42213b12ccfa51e936e45f9946578b
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 68081b3fb50da504d945c897630cb1609499ffbe1ef4b3164474461ca5a08c4f
[INFO] running `"docker" "start" "-a" "68081b3fb50da504d945c897630cb1609499ffbe1ef4b3164474461ca5a08c4f"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling lvm-rust v0.1.0 (/opt/rustwide/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: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/device_mapper/high_level.rs:13:22
[INFO] [stderr]    |
[INFO] [stderr] 13 |     targets: Vec<Box<Target + 'a>>
[INFO] [stderr]    |                      ^^^^^^^^^^^ help: use `dyn`: `dyn Target + 'a`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]  --> src/device_mapper/utils.rs:9:30
[INFO] [stderr]   |
[INFO] [stderr] 9 | fn parse_majors(reader: &mut std::io::BufRead) -> Option<Vec<u32>> {
[INFO] [stderr]   |                              ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::io::BufRead`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:54:63
[INFO] [stderr]    |
[INFO] [stderr] 54 | fn scenario_basic_overwrite_linear(cfg: &TestConfig, dm: &mut DMInterface) -> io::Result<()> {
[INFO] [stderr]    |                                                               ^^^^^^^^^^^ help: use `dyn`: `dyn DMInterface`
[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 3.27s
[INFO] running `"docker" "inspect" "68081b3fb50da504d945c897630cb1609499ffbe1ef4b3164474461ca5a08c4f"`
[INFO] running `"docker" "rm" "-f" "68081b3fb50da504d945c897630cb1609499ffbe1ef4b3164474461ca5a08c4f"`
[INFO] [stdout] 68081b3fb50da504d945c897630cb1609499ffbe1ef4b3164474461ca5a08c4f
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "test" "--frozen"`
[INFO] [stdout] 835231a5a075ee6e93fdc0d1d6961506db5fe07f31a7e44c78b111799ea1cc6a
[INFO] running `"docker" "start" "-a" "835231a5a075ee6e93fdc0d1d6961506db5fe07f31a7e44c78b111799ea1cc6a"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.22s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/lvm_rust-9e73f8de3222cb85
[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" "835231a5a075ee6e93fdc0d1d6961506db5fe07f31a7e44c78b111799ea1cc6a"`
[INFO] running `"docker" "rm" "-f" "835231a5a075ee6e93fdc0d1d6961506db5fe07f31a7e44c78b111799ea1cc6a"`
[INFO] [stdout] 835231a5a075ee6e93fdc0d1d6961506db5fe07f31a7e44c78b111799ea1cc6a