[INFO] fetching crate memmap 0.7.0...
[INFO] testing memmap-0.7.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate memmap 0.7.0 into /workspace/builds/worker-91/source
[INFO] validating manifest of crates.io crate memmap 0.7.0 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate memmap 0.7.0
[INFO] finished tweaking crates.io crate memmap 0.7.0
[INFO] tweaked toml for crates.io crate memmap 0.7.0 written to /workspace/builds/worker-91/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e505adf9df08ab4e1eb57eb7fb9894927f9e7b91ba3257bcf9cc529e5a1a4fbf
[INFO] running `Command { std: "docker" "start" "-a" "e505adf9df08ab4e1eb57eb7fb9894927f9e7b91ba3257bcf9cc529e5a1a4fbf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e505adf9df08ab4e1eb57eb7fb9894927f9e7b91ba3257bcf9cc529e5a1a4fbf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e505adf9df08ab4e1eb57eb7fb9894927f9e7b91ba3257bcf9cc529e5a1a4fbf", kill_on_drop: false }`
[INFO] [stdout] e505adf9df08ab4e1eb57eb7fb9894927f9e7b91ba3257bcf9cc529e5a1a4fbf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bed27c9fe12a95f288bd3a7cf6ba5b28ade86a0a59d63200fa7ecf26f859a85d
[INFO] running `Command { std: "docker" "start" "-a" "bed27c9fe12a95f288bd3a7cf6ba5b28ade86a0a59d63200fa7ecf26f859a85d", kill_on_drop: false }`
[INFO] [stderr]    Compiling memmap v0.7.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.21s
[INFO] running `Command { std: "docker" "inspect" "bed27c9fe12a95f288bd3a7cf6ba5b28ade86a0a59d63200fa7ecf26f859a85d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bed27c9fe12a95f288bd3a7cf6ba5b28ade86a0a59d63200fa7ecf26f859a85d", kill_on_drop: false }`
[INFO] [stdout] bed27c9fe12a95f288bd3a7cf6ba5b28ade86a0a59d63200fa7ecf26f859a85d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 349df2c26e2a77841edf970b74943b87f4d9983956475a5a2018988c84ec1889
[INFO] running `Command { std: "docker" "start" "-a" "349df2c26e2a77841edf970b74943b87f4d9983956475a5a2018988c84ec1889", kill_on_drop: false }`
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]    Compiling tempdir v0.3.7
[INFO] [stderr]    Compiling memmap v0.7.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/lib.rs:861:13
[INFO] [stdout]     |
[INFO] [stdout] 861 |             &mmap[..];
[INFO] [stdout]     |             ^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 861 |             let _ = &mmap[..];
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.53s
[INFO] running `Command { std: "docker" "inspect" "349df2c26e2a77841edf970b74943b87f4d9983956475a5a2018988c84ec1889", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "349df2c26e2a77841edf970b74943b87f4d9983956475a5a2018988c84ec1889", kill_on_drop: false }`
[INFO] [stdout] 349df2c26e2a77841edf970b74943b87f4d9983956475a5a2018988c84ec1889
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 994cf9d6ad48c289312ea928f61ff06bd1060568870a4349935efde5099f8f25
[INFO] running `Command { std: "docker" "start" "-a" "994cf9d6ad48c289312ea928f61ff06bd1060568870a4349935efde5099f8f25", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]    --> src/lib.rs:861:13
[INFO] [stderr]     |
[INFO] [stderr] 861 |             &mmap[..];
[INFO] [stderr]     |             ^^^^^^^^^ the borrow produces a value
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]     |
[INFO] [stderr] 861 |             let _ = &mmap[..];
[INFO] [stderr]     |             +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `memmap` (lib test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.25s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/memmap-f5253b365f8be948)
[INFO] [stdout] 
[INFO] [stdout] running 15 tests
[INFO] [stdout] test test::index ... ok
[INFO] [stdout] test test::jit_x86_anon ... ok
[INFO] [stdout] test test::jit_x86_file ... ok
[INFO] [stdout] test test::map_anon_zero_len ... ok
[INFO] [stdout] test test::map_anon ... ok
[INFO] [stdout] test test::mprotect_copy ... ok
[INFO] [stdout] test test::map_empty_file ... ok
[INFO] [stdout] test test::mprotect_anon ... ok
[INFO] [stdout] test test::sync_send ... ok
[INFO] [stdout] test test::map_file ... ok
[INFO] [stdout] test test::map_copy ... ok
[INFO] [stdout] test test::map_offset ... ok
[INFO] [stdout] test test::file_write ... ok
[INFO] [stdout] test test::flush_range ... ok
[INFO] [stdout] test test::mprotect_file ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 15 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.06s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests memmap
[INFO] [stdout] 
[INFO] [stdout] running 13 tests
[INFO] [stdout] test src/lib.rs - MmapOptions::map_copy (line 247) ... ok
[INFO] [stdout] test src/lib.rs - Mmap (line 287) ... ok
[INFO] [stdout] test src/lib.rs - MmapMut::make_read_only (line 555) ... ok
[INFO] [stdout] test src/lib.rs - MmapOptions::len (line 100) ... ok
[INFO] [stdout] test src/lib.rs - MmapOptions::map (line 163) ... ok
[INFO] [stdout] test src/lib.rs - MmapOptions::offset (line 72) ... ok
[INFO] [stdout] test src/lib.rs - Mmap::make_mut (line 350) ... ok
[INFO] [stdout] test src/lib.rs - MmapOptions::stack (line 141) ... ok
[INFO] [stdout] test src/lib.rs - MmapOptions::new (line 41) ... ok
[INFO] [stdout] test src/lib.rs - MmapOptions::map_mut (line 206) ... ok
[INFO] [stdout] test src/lib.rs - MmapMut::map_mut (line 430) ... ok
[INFO] [stdout] test src/lib.rs - Mmap::map (line 317) ... ok
[INFO] [stdout] test src/lib.rs - MmapMut::flush (line 479) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 13 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "994cf9d6ad48c289312ea928f61ff06bd1060568870a4349935efde5099f8f25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "994cf9d6ad48c289312ea928f61ff06bd1060568870a4349935efde5099f8f25", kill_on_drop: false }`
[INFO] [stdout] 994cf9d6ad48c289312ea928f61ff06bd1060568870a4349935efde5099f8f25