[INFO] crate libmount 0.1.13 is already in cache
[INFO] extracting crate libmount 0.1.13 into work/ex/beta-1.37-6/sources/1.36.0/reg/libmount/0.1.13
[INFO] extracting crate libmount 0.1.13 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/libmount/0.1.13
[INFO] validating manifest of libmount-0.1.13 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 libmount-0.1.13 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 libmount-0.1.13
[INFO] finished frobbing libmount-0.1.13
[INFO] frobbed toml for libmount-0.1.13 written to work/ex/beta-1.37-6/sources/1.36.0/reg/libmount/0.1.13/Cargo.toml
[INFO] started frobbing libmount-0.1.13
[INFO] finished frobbing libmount-0.1.13
[INFO] frobbed toml for libmount-0.1.13 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/libmount/0.1.13/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing libmount-0.1.13 against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/libmount/0.1.13:/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" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] b9bac465c5b78d8cd28eff818211fbf0ac6262c1c108f5212307b28b50e2e80e
[INFO] running `"docker" "start" "-a" "b9bac465c5b78d8cd28eff818211fbf0ac6262c1c108f5212307b28b50e2e80e"`
[INFO] [stderr]    Compiling libmount v0.1.13 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/error.rs:35:32
[INFO] [stderr]    |
[INFO] [stderr] 35 |     fn cause(&self) -> Option<&StdError> {
[INFO] [stderr]    |                                ^^^^^^^^ help: use `dyn`: `dyn StdError`
[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/error.rs:50:32
[INFO] [stderr]    |
[INFO] [stderr] 50 |     fn cause(&self) -> Option<&StdError> {
[INFO] [stderr]    |                                ^^^^^^^^ help: use `dyn`: `dyn StdError`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:78:36
[INFO] [stderr]    |
[INFO] [stderr] 78 | pub struct OSError(MountError, Box<Explainable>);
[INFO] [stderr]    |                                    ^^^^^^^^^^^ help: use `dyn`: `dyn Explainable`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:81:45
[INFO] [stderr]    |
[INFO] [stderr] 81 |     fn from_io(err: io::Error, explain: Box<Explainable>) -> OSError {
[INFO] [stderr]    |                                             ^^^^^^^^^^^ help: use `dyn`: `dyn Explainable`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:85:53
[INFO] [stderr]    |
[INFO] [stderr] 85 |     fn from_remount(err: RemountError, explain: Box<Explainable>) -> OSError {
[INFO] [stderr]    |                                                     ^^^^^^^^^^^ help: use `dyn`: `dyn Explainable`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:96:22
[INFO] [stderr]    |
[INFO] [stderr] 96 | pub struct Error(Box<Explainable>, io::Error, String);
[INFO] [stderr]    |                      ^^^^^^^^^^^ help: use `dyn`: `dyn Explainable`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.12s
[INFO] running `"docker" "inspect" "b9bac465c5b78d8cd28eff818211fbf0ac6262c1c108f5212307b28b50e2e80e"`
[INFO] running `"docker" "rm" "-f" "b9bac465c5b78d8cd28eff818211fbf0ac6262c1c108f5212307b28b50e2e80e"`
[INFO] [stdout] b9bac465c5b78d8cd28eff818211fbf0ac6262c1c108f5212307b28b50e2e80e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/libmount/0.1.13:/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" "+beta-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 051d26a848b93de8b86142b0ea35ff87fad149ed6faf1917e2bd3a947f2b5988
[INFO] running `"docker" "start" "-a" "051d26a848b93de8b86142b0ea35ff87fad149ed6faf1917e2bd3a947f2b5988"`
[INFO] [stderr]    Compiling libmount v0.1.13 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/error.rs:35:32
[INFO] [stderr]    |
[INFO] [stderr] 35 |     fn cause(&self) -> Option<&StdError> {
[INFO] [stderr]    |                                ^^^^^^^^ help: use `dyn`: `dyn StdError`
[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/error.rs:50:32
[INFO] [stderr]    |
[INFO] [stderr] 50 |     fn cause(&self) -> Option<&StdError> {
[INFO] [stderr]    |                                ^^^^^^^^ help: use `dyn`: `dyn StdError`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:78:36
[INFO] [stderr]    |
[INFO] [stderr] 78 | pub struct OSError(MountError, Box<Explainable>);
[INFO] [stderr]    |                                    ^^^^^^^^^^^ help: use `dyn`: `dyn Explainable`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:81:45
[INFO] [stderr]    |
[INFO] [stderr] 81 |     fn from_io(err: io::Error, explain: Box<Explainable>) -> OSError {
[INFO] [stderr]    |                                             ^^^^^^^^^^^ help: use `dyn`: `dyn Explainable`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:85:53
[INFO] [stderr]    |
[INFO] [stderr] 85 |     fn from_remount(err: RemountError, explain: Box<Explainable>) -> OSError {
[INFO] [stderr]    |                                                     ^^^^^^^^^^^ help: use `dyn`: `dyn Explainable`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:96:22
[INFO] [stderr]    |
[INFO] [stderr] 96 | pub struct Error(Box<Explainable>, io::Error, String);
[INFO] [stderr]    |                      ^^^^^^^^^^^ help: use `dyn`: `dyn Explainable`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.89s
[INFO] running `"docker" "inspect" "051d26a848b93de8b86142b0ea35ff87fad149ed6faf1917e2bd3a947f2b5988"`
[INFO] running `"docker" "rm" "-f" "051d26a848b93de8b86142b0ea35ff87fad149ed6faf1917e2bd3a947f2b5988"`
[INFO] [stdout] 051d26a848b93de8b86142b0ea35ff87fad149ed6faf1917e2bd3a947f2b5988
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/libmount/0.1.13:/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" "+beta-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 8ccc953f4c6d7f729320d13eb0c45d683f5145846f3fb6163a95a6d37ac4a41c
[INFO] running `"docker" "start" "-a" "8ccc953f4c6d7f729320d13eb0c45d683f5145846f3fb6163a95a6d37ac4a41c"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/libmount-98c29bfeddf96e7b
[INFO] [stdout] 
[INFO] [stdout] running 23 tests
[INFO] [stdout] test mountinfo::test::test_is_octal_encoding ... ok
[INFO] [stdout] test mountinfo::test::test_mount_info_parser_comment ... ok
[INFO] [stdout] test mountinfo::test::test_mount_info_parser_incomplete_row ... ok
[INFO] [stdout] test mountinfo::test::test_mount_info_parser_crlf ... ok
[INFO] [stdout] test mountinfo::test::test_mount_info_parser_escaping ... ok
[INFO] [stdout] test mountinfo::test::test_mount_info_parser_invalid_int ... ok
[INFO] [stdout] test mountinfo::test::test_mount_info_parser_invalid_escape ... ok
[INFO] [stdout] test mountinfo::test::test_mount_info_parser_more_optional_fields ... ok
[INFO] [stdout] test mountinfo::test::test_mount_info_parser_missing_optional_fields ... ok
[INFO] [stdout] test mountinfo::test::test_mount_info_parser_overflowed_escape ... ok
[INFO] [stdout] test mountinfo::test::test_mount_info_parser_overflowed_int ... ok
[INFO] [stdout] test mountinfo::test::test_mount_info_parser_proc ... ok
[INFO] [stdout] test mountinfo::test::test_parse_octal ... ok
[INFO] [stdout] test mountinfo::test::test_unescape_octals ... ok
[INFO] [stdout] test remount::test::test_get_mountpoint_flags_from ... ok
[INFO] [stdout] test remount::test::test_get_mountpoint_flags_from_dups ... ok
[INFO] [stdout] test remount::test::test_get_mountpoint_flags_unknown ... ok
[INFO] [stdout] test remount::test::test_mount_flags ... ok
[INFO] [stdout] test remount::test::test_remount ... ok
[INFO] [stdout] test tmpfs::test::test_tmpfs_options ... ok
[INFO] [stdout] test remount::test::test_remount_unknown_mountpoint ... ok
[INFO] [stdout] test mountinfo::test::test_mount_info_parser_non_utf8 ... ok
[INFO] [stdout] test remount::test::test_get_mountpoint_flags ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 23 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests libmount
[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" "8ccc953f4c6d7f729320d13eb0c45d683f5145846f3fb6163a95a6d37ac4a41c"`
[INFO] running `"docker" "rm" "-f" "8ccc953f4c6d7f729320d13eb0c45d683f5145846f3fb6163a95a6d37ac4a41c"`
[INFO] [stdout] 8ccc953f4c6d7f729320d13eb0c45d683f5145846f3fb6163a95a6d37ac4a41c