[INFO] crate loopdev 0.2.1 is already in cache
[INFO] testing loopdev-0.2.1 against 1.44.0 for beta-1.45-1
[INFO] extracting crate loopdev 0.2.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate loopdev 0.2.1 on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate loopdev 0.2.1
[INFO] finished tweaking crates.io crate loopdev 0.2.1
[INFO] tweaked toml for crates.io crate loopdev 0.2.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=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" "+1.44.0" "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] 7272d37da3d995f791e1800caaa4f8b3a669b3afb8b1aea6f72facacafc66539
[INFO] running `"docker" "start" "-a" "7272d37da3d995f791e1800caaa4f8b3a669b3afb8b1aea6f72facacafc66539"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling errno v0.2.5
[INFO] [stderr]    Compiling loopdev v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:56:23
[INFO] [stderr]    |
[INFO] [stderr] 56 |             dev_file: try!(OpenOptions::new().read(true).write(true).open(LOOP_CONTROL)),
[INFO] [stderr]    |                       ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:78:16
[INFO] [stderr]    |
[INFO] [stderr] 78 |             Ok(try!(
[INFO] [stderr]    |                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:101:17
[INFO] [stderr]     |
[INFO] [stderr] 101 |         let f = try!(OpenOptions::new().read(true).write(true).open(dev));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:165:18
[INFO] [stderr]     |
[INFO] [stderr] 165 |         let bf = try!(OpenOptions::new().read(true).write(true).open(backing_file));
[INFO] [stderr]     |                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:190:17
[INFO] [stderr]     |
[INFO] [stderr] 190 |                 try!(self.detach());
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'libc::uint8_t': Use u8 instead.
[INFO] [stderr]   --> src/lib.rs:27:26
[INFO] [stderr]    |
[INFO] [stderr] 27 | use libc::{c_int, ioctl, uint8_t, uint32_t, uint64_t};
[INFO] [stderr]    |                          ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'libc::uint32_t': Use u32 instead.
[INFO] [stderr]   --> src/lib.rs:27:35
[INFO] [stderr]    |
[INFO] [stderr] 27 | use libc::{c_int, ioctl, uint8_t, uint32_t, uint64_t};
[INFO] [stderr]    |                                   ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'libc::uint64_t': Use u64 instead.
[INFO] [stderr]   --> src/lib.rs:27:45
[INFO] [stderr]    |
[INFO] [stderr] 27 | use libc::{c_int, ioctl, uint8_t, uint32_t, uint64_t};
[INFO] [stderr]    |                                             ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'libc::uint64_t': Use u64 instead.
[INFO] [stderr]    --> src/lib.rs:252:20
[INFO] [stderr]     |
[INFO] [stderr] 252 |     pub lo_device: uint64_t,
[INFO] [stderr]     |                    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'libc::uint64_t': Use u64 instead.
[INFO] [stderr]    --> src/lib.rs:253:19
[INFO] [stderr]     |
[INFO] [stderr] 253 |     pub lo_inode: uint64_t,
[INFO] [stderr]     |                   ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'libc::uint64_t': Use u64 instead.
[INFO] [stderr]    --> src/lib.rs:254:21
[INFO] [stderr]     |
[INFO] [stderr] 254 |     pub lo_rdevice: uint64_t,
[INFO] [stderr]     |                     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'libc::uint64_t': Use u64 instead.
[INFO] [stderr]    --> src/lib.rs:255:20
[INFO] [stderr]     |
[INFO] [stderr] 255 |     pub lo_offset: uint64_t,
[INFO] [stderr]     |                    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'libc::uint64_t': Use u64 instead.
[INFO] [stderr]    --> src/lib.rs:256:23
[INFO] [stderr]     |
[INFO] [stderr] 256 |     pub lo_sizelimit: uint64_t,
[INFO] [stderr]     |                       ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'libc::uint32_t': Use u32 instead.
[INFO] [stderr]    --> src/lib.rs:257:20
[INFO] [stderr]     |
[INFO] [stderr] 257 |     pub lo_number: uint32_t,
[INFO] [stderr]     |                    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'libc::uint32_t': Use u32 instead.
[INFO] [stderr]    --> src/lib.rs:258:26
[INFO] [stderr]     |
[INFO] [stderr] 258 |     pub lo_encrypt_type: uint32_t,
[INFO] [stderr]     |                          ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'libc::uint32_t': Use u32 instead.
[INFO] [stderr]    --> src/lib.rs:259:30
[INFO] [stderr]     |
[INFO] [stderr] 259 |     pub lo_encrypt_key_size: uint32_t,
[INFO] [stderr]     |                              ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'libc::uint32_t': Use u32 instead.
[INFO] [stderr]    --> src/lib.rs:260:19
[INFO] [stderr]     |
[INFO] [stderr] 260 |     pub lo_flags: uint32_t,
[INFO] [stderr]     |                   ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'libc::uint8_t': Use u8 instead.
[INFO] [stderr]    --> src/lib.rs:261:24
[INFO] [stderr]     |
[INFO] [stderr] 261 |     pub lo_file_name: [uint8_t; 64],
[INFO] [stderr]     |                        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'libc::uint8_t': Use u8 instead.
[INFO] [stderr]    --> src/lib.rs:262:25
[INFO] [stderr]     |
[INFO] [stderr] 262 |     pub lo_crypt_name: [uint8_t; 64],
[INFO] [stderr]     |                         ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'libc::uint8_t': Use u8 instead.
[INFO] [stderr]    --> src/lib.rs:263:26
[INFO] [stderr]     |
[INFO] [stderr] 263 |     pub lo_encrypt_key: [uint8_t; 32],
[INFO] [stderr]     |                          ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'libc::uint64_t': Use u64 instead.
[INFO] [stderr]    --> src/lib.rs:264:19
[INFO] [stderr]     |
[INFO] [stderr] 264 |     pub lo_init: [uint64_t; 2],
[INFO] [stderr]     |                   ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 21 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.32s
[INFO] running `"docker" "inspect" "7272d37da3d995f791e1800caaa4f8b3a669b3afb8b1aea6f72facacafc66539"`
[INFO] running `"docker" "rm" "-f" "7272d37da3d995f791e1800caaa4f8b3a669b3afb8b1aea6f72facacafc66539"`
[INFO] [stdout] 7272d37da3d995f791e1800caaa4f8b3a669b3afb8b1aea6f72facacafc66539
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=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" "+1.44.0" "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] 4f63930214f9ed14cd0bf8d36ac7f463d278f6acfbdd22c773e89b41f7049c9c
[INFO] running `"docker" "start" "-a" "4f63930214f9ed14cd0bf8d36ac7f463d278f6acfbdd22c773e89b41f7049c9c"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:56:23
[INFO] [stderr]    |
[INFO] [stderr] 56 |             dev_file: try!(OpenOptions::new().read(true).write(true).open(LOOP_CONTROL)),
[INFO] [stderr]    |                       ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:78:16
[INFO] [stderr]    |
[INFO] [stderr] 78 |             Ok(try!(
[INFO] [stderr]    |                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:101:17
[INFO] [stderr]     |
[INFO] [stderr] 101 |         let f = try!(OpenOptions::new().read(true).write(true).open(dev));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:165:18
[INFO] [stderr]     |
[INFO] [stderr] 165 |         let bf = try!(OpenOptions::new().read(true).write(true).open(backing_file));
[INFO] [stderr]     |                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:190:17
[INFO] [stderr]     |
[INFO] [stderr] 190 |                 try!(self.detach());
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'libc::uint8_t': Use u8 instead.
[INFO] [stderr]   --> src/lib.rs:27:26
[INFO] [stderr]    |
[INFO] [stderr] 27 | use libc::{c_int, ioctl, uint8_t, uint32_t, uint64_t};
[INFO] [stderr]    |                          ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'libc::uint32_t': Use u32 instead.
[INFO] [stderr]   --> src/lib.rs:27:35
[INFO] [stderr]    |
[INFO] [stderr] 27 | use libc::{c_int, ioctl, uint8_t, uint32_t, uint64_t};
[INFO] [stderr]    |                                   ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'libc::uint64_t': Use u64 instead.
[INFO] [stderr]   --> src/lib.rs:27:45
[INFO] [stderr]    |
[INFO] [stderr] 27 | use libc::{c_int, ioctl, uint8_t, uint32_t, uint64_t};
[INFO] [stderr]    |                                             ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'libc::uint64_t': Use u64 instead.
[INFO] [stderr]    --> src/lib.rs:252:20
[INFO] [stderr]     |
[INFO] [stderr] 252 |     pub lo_device: uint64_t,
[INFO] [stderr]     |                    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'libc::uint64_t': Use u64 instead.
[INFO] [stderr]    --> src/lib.rs:253:19
[INFO] [stderr]     |
[INFO] [stderr] 253 |     pub lo_inode: uint64_t,
[INFO] [stderr]     |                   ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'libc::uint64_t': Use u64 instead.
[INFO] [stderr]    --> src/lib.rs:254:21
[INFO] [stderr]     |
[INFO] [stderr] 254 |     pub lo_rdevice: uint64_t,
[INFO] [stderr]     |                     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'libc::uint64_t': Use u64 instead.
[INFO] [stderr]    --> src/lib.rs:255:20
[INFO] [stderr]     |
[INFO] [stderr] 255 |     pub lo_offset: uint64_t,
[INFO] [stderr]     |                    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'libc::uint64_t': Use u64 instead.
[INFO] [stderr]    --> src/lib.rs:256:23
[INFO] [stderr]     |
[INFO] [stderr] 256 |     pub lo_sizelimit: uint64_t,
[INFO] [stderr]     |                       ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'libc::uint32_t': Use u32 instead.
[INFO] [stderr]    --> src/lib.rs:257:20
[INFO] [stderr]     |
[INFO] [stderr] 257 |     pub lo_number: uint32_t,
[INFO] [stderr]     |                    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'libc::uint32_t': Use u32 instead.
[INFO] [stderr]    --> src/lib.rs:258:26
[INFO] [stderr]     |
[INFO] [stderr] 258 |     pub lo_encrypt_type: uint32_t,
[INFO] [stderr]     |                          ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'libc::uint32_t': Use u32 instead.
[INFO] [stderr]    --> src/lib.rs:259:30
[INFO] [stderr]     |
[INFO] [stderr] 259 |     pub lo_encrypt_key_size: uint32_t,
[INFO] [stderr]     |                              ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'libc::uint32_t': Use u32 instead.
[INFO] [stderr]    --> src/lib.rs:260:19
[INFO] [stderr]     |
[INFO] [stderr] 260 |     pub lo_flags: uint32_t,
[INFO] [stderr]     |                   ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'libc::uint8_t': Use u8 instead.
[INFO] [stderr]    --> src/lib.rs:261:24
[INFO] [stderr]     |
[INFO] [stderr] 261 |     pub lo_file_name: [uint8_t; 64],
[INFO] [stderr]     |                        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'libc::uint8_t': Use u8 instead.
[INFO] [stderr]    --> src/lib.rs:262:25
[INFO] [stderr]     |
[INFO] [stderr] 262 |     pub lo_crypt_name: [uint8_t; 64],
[INFO] [stderr]     |                         ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'libc::uint8_t': Use u8 instead.
[INFO] [stderr]    --> src/lib.rs:263:26
[INFO] [stderr]     |
[INFO] [stderr] 263 |     pub lo_encrypt_key: [uint8_t; 32],
[INFO] [stderr]     |                          ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'libc::uint64_t': Use u64 instead.
[INFO] [stderr]    --> src/lib.rs:264:19
[INFO] [stderr]     |
[INFO] [stderr] 264 |     pub lo_init: [uint64_t; 2],
[INFO] [stderr]     |                   ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 21 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]    Compiling loopdev v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:56:23
[INFO] [stderr]    |
[INFO] [stderr] 56 |             dev_file: try!(OpenOptions::new().read(true).write(true).open(LOOP_CONTROL)),
[INFO] [stderr]    |                       ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:78:16
[INFO] [stderr]    |
[INFO] [stderr] 78 |             Ok(try!(
[INFO] [stderr]    |                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:101:17
[INFO] [stderr]     |
[INFO] [stderr] 101 |         let f = try!(OpenOptions::new().read(true).write(true).open(dev));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:165:18
[INFO] [stderr]     |
[INFO] [stderr] 165 |         let bf = try!(OpenOptions::new().read(true).write(true).open(backing_file));
[INFO] [stderr]     |                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:190:17
[INFO] [stderr]     |
[INFO] [stderr] 190 |                 try!(self.detach());
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'libc::uint8_t': Use u8 instead.
[INFO] [stderr]   --> src/lib.rs:27:26
[INFO] [stderr]    |
[INFO] [stderr] 27 | use libc::{c_int, ioctl, uint8_t, uint32_t, uint64_t};
[INFO] [stderr]    |                          ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'libc::uint32_t': Use u32 instead.
[INFO] [stderr]   --> src/lib.rs:27:35
[INFO] [stderr]    |
[INFO] [stderr] 27 | use libc::{c_int, ioctl, uint8_t, uint32_t, uint64_t};
[INFO] [stderr]    |                                   ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'libc::uint64_t': Use u64 instead.
[INFO] [stderr]   --> src/lib.rs:27:45
[INFO] [stderr]    |
[INFO] [stderr] 27 | use libc::{c_int, ioctl, uint8_t, uint32_t, uint64_t};
[INFO] [stderr]    |                                             ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'libc::uint64_t': Use u64 instead.
[INFO] [stderr]    --> src/lib.rs:252:20
[INFO] [stderr]     |
[INFO] [stderr] 252 |     pub lo_device: uint64_t,
[INFO] [stderr]     |                    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'libc::uint64_t': Use u64 instead.
[INFO] [stderr]    --> src/lib.rs:253:19
[INFO] [stderr]     |
[INFO] [stderr] 253 |     pub lo_inode: uint64_t,
[INFO] [stderr]     |                   ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'libc::uint64_t': Use u64 instead.
[INFO] [stderr]    --> src/lib.rs:254:21
[INFO] [stderr]     |
[INFO] [stderr] 254 |     pub lo_rdevice: uint64_t,
[INFO] [stderr]     |                     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'libc::uint64_t': Use u64 instead.
[INFO] [stderr]    --> src/lib.rs:255:20
[INFO] [stderr]     |
[INFO] [stderr] 255 |     pub lo_offset: uint64_t,
[INFO] [stderr]     |                    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'libc::uint64_t': Use u64 instead.
[INFO] [stderr]    --> src/lib.rs:256:23
[INFO] [stderr]     |
[INFO] [stderr] 256 |     pub lo_sizelimit: uint64_t,
[INFO] [stderr]     |                       ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'libc::uint32_t': Use u32 instead.
[INFO] [stderr]    --> src/lib.rs:257:20
[INFO] [stderr]     |
[INFO] [stderr] 257 |     pub lo_number: uint32_t,
[INFO] [stderr]     |                    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'libc::uint32_t': Use u32 instead.
[INFO] [stderr]    --> src/lib.rs:258:26
[INFO] [stderr]     |
[INFO] [stderr] 258 |     pub lo_encrypt_type: uint32_t,
[INFO] [stderr]     |                          ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'libc::uint32_t': Use u32 instead.
[INFO] [stderr]    --> src/lib.rs:259:30
[INFO] [stderr]     |
[INFO] [stderr] 259 |     pub lo_encrypt_key_size: uint32_t,
[INFO] [stderr]     |                              ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'libc::uint32_t': Use u32 instead.
[INFO] [stderr]    --> src/lib.rs:260:19
[INFO] [stderr]     |
[INFO] [stderr] 260 |     pub lo_flags: uint32_t,
[INFO] [stderr]     |                   ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'libc::uint8_t': Use u8 instead.
[INFO] [stderr]    --> src/lib.rs:261:24
[INFO] [stderr]     |
[INFO] [stderr] 261 |     pub lo_file_name: [uint8_t; 64],
[INFO] [stderr]     |                        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'libc::uint8_t': Use u8 instead.
[INFO] [stderr]    --> src/lib.rs:262:25
[INFO] [stderr]     |
[INFO] [stderr] 262 |     pub lo_crypt_name: [uint8_t; 64],
[INFO] [stderr]     |                         ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'libc::uint8_t': Use u8 instead.
[INFO] [stderr]    --> src/lib.rs:263:26
[INFO] [stderr]     |
[INFO] [stderr] 263 |     pub lo_encrypt_key: [uint8_t; 32],
[INFO] [stderr]     |                          ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'libc::uint64_t': Use u64 instead.
[INFO] [stderr]    --> src/lib.rs:264:19
[INFO] [stderr]     |
[INFO] [stderr] 264 |     pub lo_init: [uint64_t; 2],
[INFO] [stderr]     |                   ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 21 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.77s
[INFO] running `"docker" "inspect" "4f63930214f9ed14cd0bf8d36ac7f463d278f6acfbdd22c773e89b41f7049c9c"`
[INFO] running `"docker" "rm" "-f" "4f63930214f9ed14cd0bf8d36ac7f463d278f6acfbdd22c773e89b41f7049c9c"`
[INFO] [stdout] 4f63930214f9ed14cd0bf8d36ac7f463d278f6acfbdd22c773e89b41f7049c9c
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=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" "+1.44.0" "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] 7cafe3d2821f4c927e6bec4f5ad7e8f0bd62351ceaa8cf362c2c24edca27fa8f
[INFO] running `"docker" "start" "-a" "7cafe3d2821f4c927e6bec4f5ad7e8f0bd62351ceaa8cf362c2c24edca27fa8f"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:56:23
[INFO] [stderr]    |
[INFO] [stderr] 56 |             dev_file: try!(OpenOptions::new().read(true).write(true).open(LOOP_CONTROL)),
[INFO] [stderr]    |                       ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:78:16
[INFO] [stderr]    |
[INFO] [stderr] 78 |             Ok(try!(
[INFO] [stderr]    |                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:101:17
[INFO] [stderr]     |
[INFO] [stderr] 101 |         let f = try!(OpenOptions::new().read(true).write(true).open(dev));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:165:18
[INFO] [stderr]     |
[INFO] [stderr] 165 |         let bf = try!(OpenOptions::new().read(true).write(true).open(backing_file));
[INFO] [stderr]     |                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:190:17
[INFO] [stderr]     |
[INFO] [stderr] 190 |                 try!(self.detach());
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'libc::uint8_t': Use u8 instead.
[INFO] [stderr]   --> src/lib.rs:27:26
[INFO] [stderr]    |
[INFO] [stderr] 27 | use libc::{c_int, ioctl, uint8_t, uint32_t, uint64_t};
[INFO] [stderr]    |                          ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'libc::uint32_t': Use u32 instead.
[INFO] [stderr]   --> src/lib.rs:27:35
[INFO] [stderr]    |
[INFO] [stderr] 27 | use libc::{c_int, ioctl, uint8_t, uint32_t, uint64_t};
[INFO] [stderr]    |                                   ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'libc::uint64_t': Use u64 instead.
[INFO] [stderr]   --> src/lib.rs:27:45
[INFO] [stderr]    |
[INFO] [stderr] 27 | use libc::{c_int, ioctl, uint8_t, uint32_t, uint64_t};
[INFO] [stderr]    |                                             ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'libc::uint64_t': Use u64 instead.
[INFO] [stderr]    --> src/lib.rs:252:20
[INFO] [stderr]     |
[INFO] [stderr] 252 |     pub lo_device: uint64_t,
[INFO] [stderr]     |                    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'libc::uint64_t': Use u64 instead.
[INFO] [stderr]    --> src/lib.rs:253:19
[INFO] [stderr]     |
[INFO] [stderr] 253 |     pub lo_inode: uint64_t,
[INFO] [stderr]     |                   ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'libc::uint64_t': Use u64 instead.
[INFO] [stderr]    --> src/lib.rs:254:21
[INFO] [stderr]     |
[INFO] [stderr] 254 |     pub lo_rdevice: uint64_t,
[INFO] [stderr]     |                     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'libc::uint64_t': Use u64 instead.
[INFO] [stderr]    --> src/lib.rs:255:20
[INFO] [stderr]     |
[INFO] [stderr] 255 |     pub lo_offset: uint64_t,
[INFO] [stderr]     |                    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'libc::uint64_t': Use u64 instead.
[INFO] [stderr]    --> src/lib.rs:256:23
[INFO] [stderr]     |
[INFO] [stderr] 256 |     pub lo_sizelimit: uint64_t,
[INFO] [stderr]     |                       ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'libc::uint32_t': Use u32 instead.
[INFO] [stderr]    --> src/lib.rs:257:20
[INFO] [stderr]     |
[INFO] [stderr] 257 |     pub lo_number: uint32_t,
[INFO] [stderr]     |                    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'libc::uint32_t': Use u32 instead.
[INFO] [stderr]    --> src/lib.rs:258:26
[INFO] [stderr]     |
[INFO] [stderr] 258 |     pub lo_encrypt_type: uint32_t,
[INFO] [stderr]     |                          ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'libc::uint32_t': Use u32 instead.
[INFO] [stderr]    --> src/lib.rs:259:30
[INFO] [stderr]     |
[INFO] [stderr] 259 |     pub lo_encrypt_key_size: uint32_t,
[INFO] [stderr]     |                              ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'libc::uint32_t': Use u32 instead.
[INFO] [stderr]    --> src/lib.rs:260:19
[INFO] [stderr]     |
[INFO] [stderr] 260 |     pub lo_flags: uint32_t,
[INFO] [stderr]     |                   ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'libc::uint8_t': Use u8 instead.
[INFO] [stderr]    --> src/lib.rs:261:24
[INFO] [stderr]     |
[INFO] [stderr] 261 |     pub lo_file_name: [uint8_t; 64],
[INFO] [stderr]     |                        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'libc::uint8_t': Use u8 instead.
[INFO] [stderr]    --> src/lib.rs:262:25
[INFO] [stderr]     |
[INFO] [stderr] 262 |     pub lo_crypt_name: [uint8_t; 64],
[INFO] [stderr]     |                         ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'libc::uint8_t': Use u8 instead.
[INFO] [stderr]    --> src/lib.rs:263:26
[INFO] [stderr]     |
[INFO] [stderr] 263 |     pub lo_encrypt_key: [uint8_t; 32],
[INFO] [stderr]     |                          ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'libc::uint64_t': Use u64 instead.
[INFO] [stderr]    --> src/lib.rs:264:19
[INFO] [stderr]     |
[INFO] [stderr] 264 |     pub lo_init: [uint64_t; 2],
[INFO] [stderr]     |                   ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 21 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:56:23
[INFO] [stderr]    |
[INFO] [stderr] 56 |             dev_file: try!(OpenOptions::new().read(true).write(true).open(LOOP_CONTROL)),
[INFO] [stderr]    |                       ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:78:16
[INFO] [stderr]    |
[INFO] [stderr] 78 |             Ok(try!(
[INFO] [stderr]    |                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:101:17
[INFO] [stderr]     |
[INFO] [stderr] 101 |         let f = try!(OpenOptions::new().read(true).write(true).open(dev));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:165:18
[INFO] [stderr]     |
[INFO] [stderr] 165 |         let bf = try!(OpenOptions::new().read(true).write(true).open(backing_file));
[INFO] [stderr]     |                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:190:17
[INFO] [stderr]     |
[INFO] [stderr] 190 |                 try!(self.detach());
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'libc::uint8_t': Use u8 instead.
[INFO] [stderr]   --> src/lib.rs:27:26
[INFO] [stderr]    |
[INFO] [stderr] 27 | use libc::{c_int, ioctl, uint8_t, uint32_t, uint64_t};
[INFO] [stderr]    |                          ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'libc::uint32_t': Use u32 instead.
[INFO] [stderr]   --> src/lib.rs:27:35
[INFO] [stderr]    |
[INFO] [stderr] 27 | use libc::{c_int, ioctl, uint8_t, uint32_t, uint64_t};
[INFO] [stderr]    |                                   ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'libc::uint64_t': Use u64 instead.
[INFO] [stderr]   --> src/lib.rs:27:45
[INFO] [stderr]    |
[INFO] [stderr] 27 | use libc::{c_int, ioctl, uint8_t, uint32_t, uint64_t};
[INFO] [stderr]    |                                             ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'libc::uint64_t': Use u64 instead.
[INFO] [stderr]    --> src/lib.rs:252:20
[INFO] [stderr]     |
[INFO] [stderr] 252 |     pub lo_device: uint64_t,
[INFO] [stderr]     |                    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'libc::uint64_t': Use u64 instead.
[INFO] [stderr]    --> src/lib.rs:253:19
[INFO] [stderr]     |
[INFO] [stderr] 253 |     pub lo_inode: uint64_t,
[INFO] [stderr]     |                   ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'libc::uint64_t': Use u64 instead.
[INFO] [stderr]    --> src/lib.rs:254:21
[INFO] [stderr]     |
[INFO] [stderr] 254 |     pub lo_rdevice: uint64_t,
[INFO] [stderr]     |                     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'libc::uint64_t': Use u64 instead.
[INFO] [stderr]    --> src/lib.rs:255:20
[INFO] [stderr]     |
[INFO] [stderr] 255 |     pub lo_offset: uint64_t,
[INFO] [stderr]     |                    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'libc::uint64_t': Use u64 instead.
[INFO] [stderr]    --> src/lib.rs:256:23
[INFO] [stderr]     |
[INFO] [stderr] 256 |     pub lo_sizelimit: uint64_t,
[INFO] [stderr]     |                       ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'libc::uint32_t': Use u32 instead.
[INFO] [stderr]    --> src/lib.rs:257:20
[INFO] [stderr]     |
[INFO] [stderr] 257 |     pub lo_number: uint32_t,
[INFO] [stderr]     |                    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'libc::uint32_t': Use u32 instead.
[INFO] [stderr]    --> src/lib.rs:258:26
[INFO] [stderr]     |
[INFO] [stderr] 258 |     pub lo_encrypt_type: uint32_t,
[INFO] [stderr]     |                          ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'libc::uint32_t': Use u32 instead.
[INFO] [stderr]    --> src/lib.rs:259:30
[INFO] [stderr]     |
[INFO] [stderr] 259 |     pub lo_encrypt_key_size: uint32_t,
[INFO] [stderr]     |                              ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'libc::uint32_t': Use u32 instead.
[INFO] [stderr]    --> src/lib.rs:260:19
[INFO] [stderr]     |
[INFO] [stderr] 260 |     pub lo_flags: uint32_t,
[INFO] [stderr]     |                   ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'libc::uint8_t': Use u8 instead.
[INFO] [stderr]    --> src/lib.rs:261:24
[INFO] [stderr]     |
[INFO] [stderr] 261 |     pub lo_file_name: [uint8_t; 64],
[INFO] [stderr]     |                        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'libc::uint8_t': Use u8 instead.
[INFO] [stderr]    --> src/lib.rs:262:25
[INFO] [stderr]     |
[INFO] [stderr] 262 |     pub lo_crypt_name: [uint8_t; 64],
[INFO] [stderr]     |                         ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'libc::uint8_t': Use u8 instead.
[INFO] [stderr]    --> src/lib.rs:263:26
[INFO] [stderr]     |
[INFO] [stderr] 263 |     pub lo_encrypt_key: [uint8_t; 32],
[INFO] [stderr]     |                          ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'libc::uint64_t': Use u64 instead.
[INFO] [stderr]    --> src/lib.rs:264:19
[INFO] [stderr]     |
[INFO] [stderr] 264 |     pub lo_init: [uint64_t; 2],
[INFO] [stderr]     |                   ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 21 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/loopdev-0083fc29a035568f
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests loopdev
[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] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test src/lib.rs - LoopControl::next_free (line 64) ... FAILED
[INFO] [stdout] test src/lib.rs - LoopDevice::attach_file (line 117) ... FAILED
[INFO] [stdout] test src/lib.rs - LoopDevice::detach (line 214) ... FAILED
[INFO] [stdout] test src/lib.rs - LoopDevice::attach_with_sizelimit (line 153) ... FAILED
[INFO] [stdout] test src/lib.rs - LoopDevice::attach_with_offset (line 133) ... FAILED
[INFO] [stdout] test src/lib.rs -  (line 7) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - LoopControl::next_free (line 64) stdout ----
[INFO] [stdout] Test executable failed (exit code 101).
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: Os { code: 2, kind: NotFound, message: "No such file or directory" }', src/lib.rs:5:10
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x561e7a524ca4 - backtrace::backtrace::libunwind::trace::hc1c4a1d8ad423b97
[INFO] [stdout]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/libunwind.rs:86
[INFO] [stdout]    1:     0x561e7a524ca4 - backtrace::backtrace::trace_unsynchronized::h82274781060cb056
[INFO] [stdout]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/mod.rs:66
[INFO] [stdout]    2:     0x561e7a524ca4 - std::sys_common::backtrace::_print_fmt::h2a45d89b653a4da8
[INFO] [stdout]                                at src/libstd/sys_common/backtrace.rs:78
[INFO] [stdout]    3:     0x561e7a524ca4 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h41a0a93ab85e6aa1
[INFO] [stdout]                                at src/libstd/sys_common/backtrace.rs:59
[INFO] [stdout]    4:     0x561e7a54337c - core::fmt::write::hdaea18585065a96d
[INFO] [stdout]                                at src/libcore/fmt/mod.rs:1069
[INFO] [stdout]    5:     0x561e7a523113 - std::io::Write::write_fmt::h0cea70c809005252
[INFO] [stdout]                                at src/libstd/io/mod.rs:1504
[INFO] [stdout]    6:     0x561e7a527245 - std::sys_common::backtrace::_print::hd95f9978cc145ca4
[INFO] [stdout]                                at src/libstd/sys_common/backtrace.rs:62
[INFO] [stdout]    7:     0x561e7a527245 - std::sys_common::backtrace::print::hfb25ca2291be47d0
[INFO] [stdout]                                at src/libstd/sys_common/backtrace.rs:49
[INFO] [stdout]    8:     0x561e7a527245 - std::panicking::default_hook::{{closure}}::h44f76cee5dc8591c
[INFO] [stdout]                                at src/libstd/panicking.rs:198
[INFO] [stdout]    9:     0x561e7a526f82 - std::panicking::default_hook::h198e1a712910f1e6
[INFO] [stdout]                                at src/libstd/panicking.rs:218
[INFO] [stdout]   10:     0x561e7a527852 - std::panicking::rust_panic_with_hook::hc0b4730bb8013f9d
[INFO] [stdout]                                at src/libstd/panicking.rs:511
[INFO] [stdout]   11:     0x561e7a52743b - rust_begin_unwind
[INFO] [stdout]                                at src/libstd/panicking.rs:419
[INFO] [stdout]   12:     0x561e7a542761 - core::panicking::panic_fmt::h1ac71ad045d55416
[INFO] [stdout]                                at src/libcore/panicking.rs:111
[INFO] [stdout]   13:     0x561e7a542583 - core::option::expect_none_failed::hb40004d71d61b685
[INFO] [stdout]                                at src/libcore/option.rs:1268
[INFO] [stdout]   14:     0x561e7a51755b - core::result::Result<T,E>::unwrap::h9945c57ffb0a62b2
[INFO] [stdout]   15:     0x561e7a5176e7 - rust_out::main::hce5147e828914a17
[INFO] [stdout]   16:     0x561e7a517293 - std::rt::lang_start::{{closure}}::hb15f61f8249547b1
[INFO] [stdout]   17:     0x561e7a527c98 - std::rt::lang_start_internal::{{closure}}::h7a212202ff76034b
[INFO] [stdout]                                at src/libstd/rt.rs:52
[INFO] [stdout]   18:     0x561e7a527c98 - std::panicking::try::do_call::h6d214a73427d759b
[INFO] [stdout]                                at src/libstd/panicking.rs:331
[INFO] [stdout]   19:     0x561e7a527c98 - std::panicking::try::hc078f0e11721d1cb
[INFO] [stdout]                                at src/libstd/panicking.rs:274
[INFO] [stdout]   20:     0x561e7a527c98 - std::panic::catch_unwind::hb31c05be30625612
[INFO] [stdout]                                at src/libstd/panic.rs:394
[INFO] [stdout]   21:     0x561e7a527c98 - std::rt::lang_start_internal::hcf7fb98a775d5af0
[INFO] [stdout]                                at src/libstd/rt.rs:51
[INFO] [stdout]   22:     0x561e7a517278 - std::rt::lang_start::h80cabc1387d7a5d8
[INFO] [stdout]   23:     0x561e7a5178eb - main
[INFO] [stdout]   24:     0x7fea1deb00b3 - __libc_start_main
[INFO] [stdout]   25:     0x561e7a51717e - _start
[INFO] [stdout]   26:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - LoopDevice::attach_file (line 117) stdout ----
[INFO] [stdout] Test executable failed (exit code 101).
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: Os { code: 2, kind: NotFound, message: "No such file or directory" }', src/lib.rs:5:10
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x55793ecc3994 - backtrace::backtrace::libunwind::trace::hc1c4a1d8ad423b97
[INFO] [stdout]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/libunwind.rs:86
[INFO] [stdout]    1:     0x55793ecc3994 - backtrace::backtrace::trace_unsynchronized::h82274781060cb056
[INFO] [stdout]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/mod.rs:66
[INFO] [stdout]    2:     0x55793ecc3994 - std::sys_common::backtrace::_print_fmt::h2a45d89b653a4da8
[INFO] [stdout]                                at src/libstd/sys_common/backtrace.rs:78
[INFO] [stdout]    3:     0x55793ecc3994 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h41a0a93ab85e6aa1
[INFO] [stdout]                                at src/libstd/sys_common/backtrace.rs:59
[INFO] [stdout]    4:     0x55793ece172c - core::fmt::write::hdaea18585065a96d
[INFO] [stdout]                                at src/libcore/fmt/mod.rs:1069
[INFO] [stdout]    5:     0x55793ecc2193 - std::io::Write::write_fmt::h0cea70c809005252
[INFO] [stdout]                                at src/libstd/io/mod.rs:1504
[INFO] [stdout]    6:     0x55793ecc5eb5 - std::sys_common::backtrace::_print::hd95f9978cc145ca4
[INFO] [stdout]                                at src/libstd/sys_common/backtrace.rs:62
[INFO] [stdout]    7:     0x55793ecc5eb5 - std::sys_common::backtrace::print::hfb25ca2291be47d0
[INFO] [stdout]                                at src/libstd/sys_common/backtrace.rs:49
[INFO] [stdout]    8:     0x55793ecc5eb5 - std::panicking::default_hook::{{closure}}::h44f76cee5dc8591c
[INFO] [stdout]                                at src/libstd/panicking.rs:198
[INFO] [stdout]    9:     0x55793ecc5bf2 - std::panicking::default_hook::h198e1a712910f1e6
[INFO] [stdout]                                at src/libstd/panicking.rs:218
[INFO] [stdout]   10:     0x55793ecc64c2 - std::panicking::rust_panic_with_hook::hc0b4730bb8013f9d
[INFO] [stdout]                                at src/libstd/panicking.rs:511
[INFO] [stdout]   11:     0x55793ecc60ab - rust_begin_unwind
[INFO] [stdout]                                at src/libstd/panicking.rs:419
[INFO] [stdout]   12:     0x55793ece0b11 - core::panicking::panic_fmt::h1ac71ad045d55416
[INFO] [stdout]                                at src/libcore/panicking.rs:111
[INFO] [stdout]   13:     0x55793ece0933 - core::option::expect_none_failed::hb40004d71d61b685
[INFO] [stdout]                                at src/libcore/option.rs:1268
[INFO] [stdout]   14:     0x55793ecbd49b - core::result::Result<T,E>::unwrap::hf19f9b7c8ecf0cf9
[INFO] [stdout]   15:     0x55793ecbdadf - rust_out::main::hce5147e828914a17
[INFO] [stdout]   16:     0x55793ecbd293 - std::rt::lang_start::{{closure}}::hb15f61f8249547b1
[INFO] [stdout]   17:     0x55793ecc6908 - std::rt::lang_start_internal::{{closure}}::h7a212202ff76034b
[INFO] [stdout]                                at src/libstd/rt.rs:52
[INFO] [stdout]   18:     0x55793ecc6908 - std::panicking::try::do_call::h6d214a73427d759b
[INFO] [stdout]                                at src/libstd/panicking.rs:331
[INFO] [stdout]   19:     0x55793ecc6908 - std::panicking::try::hc078f0e11721d1cb
[INFO] [stdout]                                at src/libstd/panicking.rs:274
[INFO] [stdout]   20:     0x55793ecc6908 - std::panic::catch_unwind::hb31c05be30625612
[INFO] [stdout]                                at src/libstd/panic.rs:394
[INFO] [stdout]   21:     0x55793ecc6908 - std::rt::lang_start_internal::hcf7fb98a775d5af0
[INFO] [stdout]                                at src/libstd/rt.rs:51
[INFO] [stdout]   22:     0x55793ecbd278 - std::rt::lang_start::h80cabc1387d7a5d8
[INFO] [stdout]   23:     0x55793ecbdb8b - main
[INFO] [stdout]   24:     0x7ff660c1a0b3 - __libc_start_main
[INFO] [stdout]   25:     0x55793ecbd17e - _start
[INFO] [stdout]   26:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - LoopDevice::detach (line 214) stdout ----
[INFO] [stdout] Test executable failed (exit code 101).
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: Os { code: 2, kind: NotFound, message: "No such file or directory" }', src/lib.rs:5:10
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x55f87cf7c994 - backtrace::backtrace::libunwind::trace::hc1c4a1d8ad423b97
[INFO] [stdout]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/libunwind.rs:86
[INFO] [stdout]    1:     0x55f87cf7c994 - backtrace::backtrace::trace_unsynchronized::h82274781060cb056
[INFO] [stdout]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/mod.rs:66
[INFO] [stdout]    2:     0x55f87cf7c994 - std::sys_common::backtrace::_print_fmt::h2a45d89b653a4da8
[INFO] [stdout]                                at src/libstd/sys_common/backtrace.rs:78
[INFO] [stdout]    3:     0x55f87cf7c994 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h41a0a93ab85e6aa1
[INFO] [stdout]                                at src/libstd/sys_common/backtrace.rs:59
[INFO] [stdout]    4:     0x55f87cf9a72c - core::fmt::write::hdaea18585065a96d
[INFO] [stdout]                                at src/libcore/fmt/mod.rs:1069
[INFO] [stdout]    5:     0x55f87cf7b193 - std::io::Write::write_fmt::h0cea70c809005252
[INFO] [stdout]                                at src/libstd/io/mod.rs:1504
[INFO] [stdout]    6:     0x55f87cf7eeb5 - std::sys_common::backtrace::_print::hd95f9978cc145ca4
[INFO] [stdout]                                at src/libstd/sys_common/backtrace.rs:62
[INFO] [stdout]    7:     0x55f87cf7eeb5 - std::sys_common::backtrace::print::hfb25ca2291be47d0
[INFO] [stdout]                                at src/libstd/sys_common/backtrace.rs:49
[INFO] [stdout]    8:     0x55f87cf7eeb5 - std::panicking::default_hook::{{closure}}::h44f76cee5dc8591c
[INFO] [stdout]                                at src/libstd/panicking.rs:198
[INFO] [stdout]    9:     0x55f87cf7ebf2 - std::panicking::default_hook::h198e1a712910f1e6
[INFO] [stdout]                                at src/libstd/panicking.rs:218
[INFO] [stdout]   10:     0x55f87cf7f4c2 - std::panicking::rust_panic_with_hook::hc0b4730bb8013f9d
[INFO] [stdout]                                at src/libstd/panicking.rs:511
[INFO] [stdout]   11:     0x55f87cf7f0ab - rust_begin_unwind
[INFO] [stdout]                                at src/libstd/panicking.rs:419
[INFO] [stdout]   12:     0x55f87cf99b11 - core::panicking::panic_fmt::h1ac71ad045d55416
[INFO] [stdout]                                at src/libcore/panicking.rs:111
[INFO] [stdout]   13:     0x55f87cf99933 - core::option::expect_none_failed::hb40004d71d61b685
[INFO] [stdout]                                at src/libcore/option.rs:1268
[INFO] [stdout]   14:     0x55f87cf7649b - core::result::Result<T,E>::unwrap::hf19f9b7c8ecf0cf9
[INFO] [stdout]   15:     0x55f87cf76adf - rust_out::main::hce5147e828914a17
[INFO] [stdout]   16:     0x55f87cf76293 - std::rt::lang_start::{{closure}}::hb15f61f8249547b1
[INFO] [stdout]   17:     0x55f87cf7f908 - std::rt::lang_start_internal::{{closure}}::h7a212202ff76034b
[INFO] [stdout]                                at src/libstd/rt.rs:52
[INFO] [stdout]   18:     0x55f87cf7f908 - std::panicking::try::do_call::h6d214a73427d759b
[INFO] [stdout]                                at src/libstd/panicking.rs:331
[INFO] [stdout]   19:     0x55f87cf7f908 - std::panicking::try::hc078f0e11721d1cb
[INFO] [stdout]                                at src/libstd/panicking.rs:274
[INFO] [stdout]   20:     0x55f87cf7f908 - std::panic::catch_unwind::hb31c05be30625612
[INFO] [stdout]                                at src/libstd/panic.rs:394
[INFO] [stdout]   21:     0x55f87cf7f908 - std::rt::lang_start_internal::hcf7fb98a775d5af0
[INFO] [stdout]                                at src/libstd/rt.rs:51
[INFO] [stdout]   22:     0x55f87cf76278 - std::rt::lang_start::h80cabc1387d7a5d8
[INFO] [stdout]   23:     0x55f87cf76b8b - main
[INFO] [stdout]   24:     0x7ff7809530b3 - __libc_start_main
[INFO] [stdout]   25:     0x55f87cf7617e - _start
[INFO] [stdout]   26:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - LoopDevice::attach_with_sizelimit (line 153) stdout ----
[INFO] [stdout] Test executable failed (exit code 101).
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: Os { code: 2, kind: NotFound, message: "No such file or directory" }', src/lib.rs:5:10
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x55a1b756c974 - backtrace::backtrace::libunwind::trace::hc1c4a1d8ad423b97
[INFO] [stdout]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/libunwind.rs:86
[INFO] [stdout]    1:     0x55a1b756c974 - backtrace::backtrace::trace_unsynchronized::h82274781060cb056
[INFO] [stdout]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/mod.rs:66
[INFO] [stdout]    2:     0x55a1b756c974 - std::sys_common::backtrace::_print_fmt::h2a45d89b653a4da8
[INFO] [stdout]                                at src/libstd/sys_common/backtrace.rs:78
[INFO] [stdout]    3:     0x55a1b756c974 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h41a0a93ab85e6aa1
[INFO] [stdout]                                at src/libstd/sys_common/backtrace.rs:59
[INFO] [stdout]    4:     0x55a1b758a70c - core::fmt::write::hdaea18585065a96d
[INFO] [stdout]                                at src/libcore/fmt/mod.rs:1069
[INFO] [stdout]    5:     0x55a1b756b173 - std::io::Write::write_fmt::h0cea70c809005252
[INFO] [stdout]                                at src/libstd/io/mod.rs:1504
[INFO] [stdout]    6:     0x55a1b756ee95 - std::sys_common::backtrace::_print::hd95f9978cc145ca4
[INFO] [stdout]                                at src/libstd/sys_common/backtrace.rs:62
[INFO] [stdout]    7:     0x55a1b756ee95 - std::sys_common::backtrace::print::hfb25ca2291be47d0
[INFO] [stdout]                                at src/libstd/sys_common/backtrace.rs:49
[INFO] [stdout]    8:     0x55a1b756ee95 - std::panicking::default_hook::{{closure}}::h44f76cee5dc8591c
[INFO] [stdout]                                at src/libstd/panicking.rs:198
[INFO] [stdout]    9:     0x55a1b756ebd2 - std::panicking::default_hook::h198e1a712910f1e6
[INFO] [stdout]                                at src/libstd/panicking.rs:218
[INFO] [stdout]   10:     0x55a1b756f4a2 - std::panicking::rust_panic_with_hook::hc0b4730bb8013f9d
[INFO] [stdout]                                at src/libstd/panicking.rs:511
[INFO] [stdout]   11:     0x55a1b756f08b - rust_begin_unwind
[INFO] [stdout]                                at src/libstd/panicking.rs:419
[INFO] [stdout]   12:     0x55a1b7589af1 - core::panicking::panic_fmt::h1ac71ad045d55416
[INFO] [stdout]                                at src/libcore/panicking.rs:111
[INFO] [stdout]   13:     0x55a1b7589913 - core::option::expect_none_failed::hb40004d71d61b685
[INFO] [stdout]                                at src/libcore/option.rs:1268
[INFO] [stdout]   14:     0x55a1b756649b - core::result::Result<T,E>::unwrap::hf19f9b7c8ecf0cf9
[INFO] [stdout]   15:     0x55a1b7566abf - rust_out::main::hce5147e828914a17
[INFO] [stdout]   16:     0x55a1b7566293 - std::rt::lang_start::{{closure}}::hb15f61f8249547b1
[INFO] [stdout]   17:     0x55a1b756f8e8 - std::rt::lang_start_internal::{{closure}}::h7a212202ff76034b
[INFO] [stdout]                                at src/libstd/rt.rs:52
[INFO] [stdout]   18:     0x55a1b756f8e8 - std::panicking::try::do_call::h6d214a73427d759b
[INFO] [stdout]                                at src/libstd/panicking.rs:331
[INFO] [stdout]   19:     0x55a1b756f8e8 - std::panicking::try::hc078f0e11721d1cb
[INFO] [stdout]                                at src/libstd/panicking.rs:274
[INFO] [stdout]   20:     0x55a1b756f8e8 - std::panic::catch_unwind::hb31c05be30625612
[INFO] [stdout]                                at src/libstd/panic.rs:394
[INFO] [stdout]   21:     0x55a1b756f8e8 - std::rt::lang_start_internal::hcf7fb98a775d5af0
[INFO] [stdout]                                at src/libstd/rt.rs:51
[INFO] [stdout]   22:     0x55a1b7566278 - std::rt::lang_start::h80cabc1387d7a5d8
[INFO] [stdout]   23:     0x55a1b7566b6b - main
[INFO] [stdout]   24:     0x7fb07b6d60b3 - __libc_start_main
[INFO] [stdout]   25:     0x55a1b756617e - _start
[INFO] [stdout]   26:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - LoopDevice::attach_with_offset (line 133) stdout ----
[INFO] [stdout] Test executable failed (exit code 101).
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: Os { code: 2, kind: NotFound, message: "No such file or directory" }', src/lib.rs:5:10
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x55b5adf75994 - backtrace::backtrace::libunwind::trace::hc1c4a1d8ad423b97
[INFO] [stdout]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/libunwind.rs:86
[INFO] [stdout]    1:     0x55b5adf75994 - backtrace::backtrace::trace_unsynchronized::h82274781060cb056
[INFO] [stdout]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/mod.rs:66
[INFO] [stdout]    2:     0x55b5adf75994 - std::sys_common::backtrace::_print_fmt::h2a45d89b653a4da8
[INFO] [stdout]                                at src/libstd/sys_common/backtrace.rs:78
[INFO] [stdout]    3:     0x55b5adf75994 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h41a0a93ab85e6aa1
[INFO] [stdout]                                at src/libstd/sys_common/backtrace.rs:59
[INFO] [stdout]    4:     0x55b5adf9372c - core::fmt::write::hdaea18585065a96d
[INFO] [stdout]                                at src/libcore/fmt/mod.rs:1069
[INFO] [stdout]    5:     0x55b5adf74193 - std::io::Write::write_fmt::h0cea70c809005252
[INFO] [stdout]                                at src/libstd/io/mod.rs:1504
[INFO] [stdout]    6:     0x55b5adf77eb5 - std::sys_common::backtrace::_print::hd95f9978cc145ca4
[INFO] [stdout]                                at src/libstd/sys_common/backtrace.rs:62
[INFO] [stdout]    7:     0x55b5adf77eb5 - std::sys_common::backtrace::print::hfb25ca2291be47d0
[INFO] [stdout]                                at src/libstd/sys_common/backtrace.rs:49
[INFO] [stdout]    8:     0x55b5adf77eb5 - std::panicking::default_hook::{{closure}}::h44f76cee5dc8591c
[INFO] [stdout]                                at src/libstd/panicking.rs:198
[INFO] [stdout]    9:     0x55b5adf77bf2 - std::panicking::default_hook::h198e1a712910f1e6
[INFO] [stdout]                                at src/libstd/panicking.rs:218
[INFO] [stdout]   10:     0x55b5adf784c2 - std::panicking::rust_panic_with_hook::hc0b4730bb8013f9d
[INFO] [stdout]                                at src/libstd/panicking.rs:511
[INFO] [stdout]   11:     0x55b5adf780ab - rust_begin_unwind
[INFO] [stdout]                                at src/libstd/panicking.rs:419
[INFO] [stdout]   12:     0x55b5adf92b11 - core::panicking::panic_fmt::h1ac71ad045d55416
[INFO] [stdout]                                at src/libcore/panicking.rs:111
[INFO] [stdout]   13:     0x55b5adf92933 - core::option::expect_none_failed::hb40004d71d61b685
[INFO] [stdout]                                at src/libcore/option.rs:1268
[INFO] [stdout]   14:     0x55b5adf6f49b - core::result::Result<T,E>::unwrap::hf19f9b7c8ecf0cf9
[INFO] [stdout]   15:     0x55b5adf6fadf - rust_out::main::hce5147e828914a17
[INFO] [stdout]   16:     0x55b5adf6f293 - std::rt::lang_start::{{closure}}::hb15f61f8249547b1
[INFO] [stdout]   17:     0x55b5adf78908 - std::rt::lang_start_internal::{{closure}}::h7a212202ff76034b
[INFO] [stdout]                                at src/libstd/rt.rs:52
[INFO] [stdout]   18:     0x55b5adf78908 - std::panicking::try::do_call::h6d214a73427d759b
[INFO] [stdout]                                at src/libstd/panicking.rs:331
[INFO] [stdout]   19:     0x55b5adf78908 - std::panicking::try::hc078f0e11721d1cb
[INFO] [stdout]                                at src/libstd/panicking.rs:274
[INFO] [stdout]   20:     0x55b5adf78908 - std::panic::catch_unwind::hb31c05be30625612
[INFO] [stdout]                                at src/libstd/panic.rs:394
[INFO] [stdout]   21:     0x55b5adf78908 - std::rt::lang_start_internal::hcf7fb98a775d5af0
[INFO] [stdout]                                at src/libstd/rt.rs:51
[INFO] [stdout]   22:     0x55b5adf6f278 - std::rt::lang_start::h80cabc1387d7a5d8
[INFO] [stdout]   23:     0x55b5adf6fb8b - main
[INFO] [stdout]   24:     0x7f3b5f0c40b3 - __libc_start_main
[INFO] [stdout]   25:     0x55b5adf6f17e - _start
[INFO] [stdout]   26:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs -  (line 7) stdout ----
[INFO] [stdout] Test executable failed (exit code 101).
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: Os { code: 2, kind: NotFound, message: "No such file or directory" }', src/lib.rs:5:10
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5590146a3404 - backtrace::backtrace::libunwind::trace::hc1c4a1d8ad423b97
[INFO] [stdout]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/libunwind.rs:86
[INFO] [stdout]    1:     0x5590146a3404 - backtrace::backtrace::trace_unsynchronized::h82274781060cb056
[INFO] [stdout]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/mod.rs:66
[INFO] [stdout]    2:     0x5590146a3404 - std::sys_common::backtrace::_print_fmt::h2a45d89b653a4da8
[INFO] [stdout]                                at src/libstd/sys_common/backtrace.rs:78
[INFO] [stdout]    3:     0x5590146a3404 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h41a0a93ab85e6aa1
[INFO] [stdout]                                at src/libstd/sys_common/backtrace.rs:59
[INFO] [stdout]    4:     0x5590146c1adc - core::fmt::write::hdaea18585065a96d
[INFO] [stdout]                                at src/libcore/fmt/mod.rs:1069
[INFO] [stdout]    5:     0x5590146a1873 - std::io::Write::write_fmt::h0cea70c809005252
[INFO] [stdout]                                at src/libstd/io/mod.rs:1504
[INFO] [stdout]    6:     0x5590146a59a5 - std::sys_common::backtrace::_print::hd95f9978cc145ca4
[INFO] [stdout]                                at src/libstd/sys_common/backtrace.rs:62
[INFO] [stdout]    7:     0x5590146a59a5 - std::sys_common::backtrace::print::hfb25ca2291be47d0
[INFO] [stdout]                                at src/libstd/sys_common/backtrace.rs:49
[INFO] [stdout]    8:     0x5590146a59a5 - std::panicking::default_hook::{{closure}}::h44f76cee5dc8591c
[INFO] [stdout]                                at src/libstd/panicking.rs:198
[INFO] [stdout]    9:     0x5590146a56e2 - std::panicking::default_hook::h198e1a712910f1e6
[INFO] [stdout]                                at src/libstd/panicking.rs:218
[INFO] [stdout]   10:     0x5590146a5fb2 - std::panicking::rust_panic_with_hook::hc0b4730bb8013f9d
[INFO] [stdout]                                at src/libstd/panicking.rs:511
[INFO] [stdout]   11:     0x5590146a5b9b - rust_begin_unwind
[INFO] [stdout]                                at src/libstd/panicking.rs:419
[INFO] [stdout]   12:     0x5590146c0ec1 - core::panicking::panic_fmt::h1ac71ad045d55416
[INFO] [stdout]                                at src/libcore/panicking.rs:111
[INFO] [stdout]   13:     0x5590146c0ce3 - core::option::expect_none_failed::hb40004d71d61b685
[INFO] [stdout]                                at src/libcore/option.rs:1268
[INFO] [stdout]   14:     0x55901469559b - core::result::Result<T,E>::unwrap::h9945c57ffb0a62b2
[INFO] [stdout]   15:     0x559014695bb7 - rust_out::main::hce5147e828914a17
[INFO] [stdout]   16:     0x559014695293 - std::rt::lang_start::{{closure}}::hb15f61f8249547b1
[INFO] [stdout]   17:     0x5590146a63f8 - std::rt::lang_start_internal::{{closure}}::h7a212202ff76034b
[INFO] [stdout]                                at src/libstd/rt.rs:52
[INFO] [stdout]   18:     0x5590146a63f8 - std::panicking::try::do_call::h6d214a73427d759b
[INFO] [stdout]                                at src/libstd/panicking.rs:331
[INFO] [stdout]   19:     0x5590146a63f8 - std::panicking::try::hc078f0e11721d1cb
[INFO] [stdout]                                at src/libstd/panicking.rs:274
[INFO] [stdout]   20:     0x5590146a63f8 - std::panic::catch_unwind::hb31c05be30625612
[INFO] [stdout]                                at src/libstd/panic.rs:394
[INFO] [stdout]   21:     0x5590146a63f8 - std::rt::lang_start_internal::hcf7fb98a775d5af0
[INFO] [stdout]                                at src/libstd/rt.rs:51
[INFO] [stdout]   22:     0x559014695278 - std::rt::lang_start::h80cabc1387d7a5d8
[INFO] [stdout]   23:     0x559014695e2b - main
[INFO] [stdout]   24:     0x7fcf40cc60b3 - __libc_start_main
[INFO] [stdout]   25:     0x55901469517e - _start
[INFO] [stdout]   26:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs -  (line 7)
[INFO] [stdout]     src/lib.rs - LoopControl::next_free (line 64)
[INFO] [stdout]     src/lib.rs - LoopDevice::attach_file (line 117)
[INFO] [stdout]     src/lib.rs - LoopDevice::attach_with_offset (line 133)
[INFO] [stdout]     src/lib.rs - LoopDevice::attach_with_sizelimit (line 153)
[INFO] [stdout]     src/lib.rs - LoopDevice::detach (line 214)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 6 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `"docker" "inspect" "7cafe3d2821f4c927e6bec4f5ad7e8f0bd62351ceaa8cf362c2c24edca27fa8f"`
[INFO] running `"docker" "rm" "-f" "7cafe3d2821f4c927e6bec4f5ad7e8f0bd62351ceaa8cf362c2c24edca27fa8f"`
[INFO] [stdout] 7cafe3d2821f4c927e6bec4f5ad7e8f0bd62351ceaa8cf362c2c24edca27fa8f