[INFO] updating cached repository https://github.com/ctsrc/persistence
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/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] 8ddd31630478932df406e41d9cfdbdaf0e882736
[INFO] testing ctsrc/persistence against try#41997647ba6a77908f6ef64401414feb00bccf16 for pr-71274
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fctsrc%2Fpersistence" "/workspace/builds/worker-7/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ctsrc/persistence on toolchain 41997647ba6a77908f6ef64401414feb00bccf16
[INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/ctsrc/persistence
[INFO] finished tweaking git repo https://github.com/ctsrc/persistence
[INFO] tweaked toml for git repo https://github.com/ctsrc/persistence written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/ctsrc/persistence already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-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" "+41997647ba6a77908f6ef64401414feb00bccf16" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c570ef2e1a9235777e3722cfeec234c28317b846d36c95ffc3ff3d9f710c8337
[INFO] running `"docker" "start" "-a" "c570ef2e1a9235777e3722cfeec234c28317b846d36c95ffc3ff3d9f710c8337"`
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling fs2 v0.4.3
[INFO] [stderr]    Compiling memmap v0.7.0
[INFO] [stderr]    Compiling persistence v0.0.5 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:258:9
[INFO] [stderr]     |
[INFO] [stderr] 258 |     let mut mm = unsafe { MmapMut::map_mut(&file)? };
[INFO] [stderr]     |         ----^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `file`
[INFO] [stderr]    --> src/lib.rs:146:3
[INFO] [stderr]     |
[INFO] [stderr] 146 |   file: File,
[INFO] [stderr]     |   ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `mm`
[INFO] [stderr]    --> src/lib.rs:147:3
[INFO] [stderr]     |
[INFO] [stderr] 147 |   mm: MmapMut,
[INFO] [stderr]     |   ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.54s
[INFO] running `"docker" "inspect" "c570ef2e1a9235777e3722cfeec234c28317b846d36c95ffc3ff3d9f710c8337"`
[INFO] running `"docker" "rm" "-f" "c570ef2e1a9235777e3722cfeec234c28317b846d36c95ffc3ff3d9f710c8337"`
[INFO] [stdout] c570ef2e1a9235777e3722cfeec234c28317b846d36c95ffc3ff3d9f710c8337
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-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" "+41997647ba6a77908f6ef64401414feb00bccf16" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f2ba4fe56075cd989f1c5bd50b337fbce6e3ee90c89250e3062e6aa4f0b6606a
[INFO] running `"docker" "start" "-a" "f2ba4fe56075cd989f1c5bd50b337fbce6e3ee90c89250e3062e6aa4f0b6606a"`
[INFO] [stderr]    Compiling getrandom v0.1.12
[INFO] [stderr]    Compiling ppv-lite86 v0.2.5
[INFO] [stderr]    Compiling memoffset v0.5.1
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:258:9
[INFO] [stderr]     |
[INFO] [stderr] 258 |     let mut mm = unsafe { MmapMut::map_mut(&file)? };
[INFO] [stderr]     |         ----^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `file`
[INFO] [stderr]    --> src/lib.rs:146:3
[INFO] [stderr]     |
[INFO] [stderr] 146 |   file: File,
[INFO] [stderr]     |   ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `mm`
[INFO] [stderr]    --> src/lib.rs:147:3
[INFO] [stderr]     |
[INFO] [stderr] 147 |   mm: MmapMut,
[INFO] [stderr]     |   ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling c2-chacha v0.2.2
[INFO] [stderr]    Compiling rand_chacha v0.2.1
[INFO] [stderr]    Compiling rand v0.7.2
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]    Compiling persistence v0.0.5 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/lib.rs:400:20
[INFO] [stderr]     |
[INFO] [stderr] 400 |     assert!(mv_err.description().ends_with("Magic bytes mismatch."));
[INFO] [stderr]     |                    ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/lib.rs:418:20
[INFO] [stderr]     |
[INFO] [stderr] 418 |     assert!(mv_err.description().contains("shorter than the expected header size"));
[INFO] [stderr]     |                    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/lib.rs:436:20
[INFO] [stderr]     |
[INFO] [stderr] 436 |     assert!(mv_err.description().contains("not an integer multiple of the size of the data type"));
[INFO] [stderr]     |                    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/lib.rs:456:20
[INFO] [stderr]     |
[INFO] [stderr] 456 |     assert!(mv_err.description().ends_with("Endianness-marker invalid."));
[INFO] [stderr]     |                    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/lib.rs:482:20
[INFO] [stderr]     |
[INFO] [stderr] 482 |     assert!(mv_err.description().ends_with("Wrong endianness."));
[INFO] [stderr]     |                    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:258:9
[INFO] [stderr]     |
[INFO] [stderr] 258 |     let mut mm = unsafe { MmapMut::map_mut(&file)? };
[INFO] [stderr]     |         ----^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `file`
[INFO] [stderr]    --> src/lib.rs:146:3
[INFO] [stderr]     |
[INFO] [stderr] 146 |   file: File,
[INFO] [stderr]     |   ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `mm`
[INFO] [stderr]    --> src/lib.rs:147:3
[INFO] [stderr]     |
[INFO] [stderr] 147 |   mm: MmapMut,
[INFO] [stderr]     |   ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 8 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 10.36s
[INFO] running `"docker" "inspect" "f2ba4fe56075cd989f1c5bd50b337fbce6e3ee90c89250e3062e6aa4f0b6606a"`
[INFO] running `"docker" "rm" "-f" "f2ba4fe56075cd989f1c5bd50b337fbce6e3ee90c89250e3062e6aa4f0b6606a"`
[INFO] [stdout] f2ba4fe56075cd989f1c5bd50b337fbce6e3ee90c89250e3062e6aa4f0b6606a
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-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" "+41997647ba6a77908f6ef64401414feb00bccf16" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c33887295cc74d1481071533ab63954e509cdea1c65152206eee3cd92133e762
[INFO] running `"docker" "start" "-a" "c33887295cc74d1481071533ab63954e509cdea1c65152206eee3cd92133e762"`
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:258:9
[INFO] [stderr]     |
[INFO] [stderr] 258 |     let mut mm = unsafe { MmapMut::map_mut(&file)? };
[INFO] [stderr]     |         ----^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `file`
[INFO] [stderr]    --> src/lib.rs:146:3
[INFO] [stderr]     |
[INFO] [stderr] 146 |   file: File,
[INFO] [stderr]     |   ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `mm`
[INFO] [stderr]    --> src/lib.rs:147:3
[INFO] [stderr]     |
[INFO] [stderr] 147 |   mm: MmapMut,
[INFO] [stderr]     |   ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/lib.rs:400:20
[INFO] [stderr]     |
[INFO] [stderr] 400 |     assert!(mv_err.description().ends_with("Magic bytes mismatch."));
[INFO] [stderr]     |                    ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/lib.rs:418:20
[INFO] [stderr]     |
[INFO] [stderr] 418 |     assert!(mv_err.description().contains("shorter than the expected header size"));
[INFO] [stderr]     |                    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/lib.rs:436:20
[INFO] [stderr]     |
[INFO] [stderr] 436 |     assert!(mv_err.description().contains("not an integer multiple of the size of the data type"));
[INFO] [stderr]     |                    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/lib.rs:456:20
[INFO] [stderr]     |
[INFO] [stderr] 456 |     assert!(mv_err.description().ends_with("Endianness-marker invalid."));
[INFO] [stderr]     |                    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/lib.rs:482:20
[INFO] [stderr]     |
[INFO] [stderr] 482 |     assert!(mv_err.description().ends_with("Wrong endianness."));
[INFO] [stderr]     |                    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lib.rs:258:9
[INFO] [stderr]     |
[INFO] [stderr] 258 |     let mut mm = unsafe { MmapMut::map_mut(&file)? };
[INFO] [stderr]     |         ----^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `file`
[INFO] [stderr]    --> src/lib.rs:146:3
[INFO] [stderr]     |
[INFO] [stderr] 146 |   file: File,
[INFO] [stderr]     |   ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `mm`
[INFO] [stderr]    --> src/lib.rs:147:3
[INFO] [stderr]     |
[INFO] [stderr] 147 |   mm: MmapMut,
[INFO] [stderr]     |   ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 8 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.26s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/persistence-e829af690734603d
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test tests::test_detect_file_corrupt_body_not_integer_multiple_of_data_type ... ok
[INFO] [stdout] test tests::test_detect_endianness_marker_invalid ... ok
[INFO] [stdout] test tests::test_detect_file_corrupt_truncated_to_under_end_of_header ... ok
[INFO] [stdout] test tests::test_detect_header_corrupt_magic_bytes ... ok
[INFO] [stdout] test tests::test_create_mmaped_vec_onto_tempfile ... ok
[INFO] [stdout] test tests::test_detect_wrong_endianness ... ok
[INFO] [stdout] test tests::test_existing_file_is_locked_while_fd_is_held ... ok
[INFO] [stdout] test tests::test_file_is_unlocked_after_drop ... ok
[INFO] [stdout] test tests::test_file_is_locked_while_fd_is_held ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests persistence
[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" "c33887295cc74d1481071533ab63954e509cdea1c65152206eee3cd92133e762"`
[INFO] running `"docker" "rm" "-f" "c33887295cc74d1481071533ab63954e509cdea1c65152206eee3cd92133e762"`
[INFO] [stdout] c33887295cc74d1481071533ab63954e509cdea1c65152206eee3cd92133e762