[INFO] cloning repository https://github.com/bigbigtor/filesystem
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bigbigtor/filesystem" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbigbigtor%2Ffilesystem", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbigbigtor%2Ffilesystem'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f0fb54371dae1c48ae3cd0aea7fd78804c946792
[INFO] checking bigbigtor/filesystem against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbigbigtor%2Ffilesystem" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/bigbigtor/filesystem on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/bigbigtor/filesystem
[INFO] finished tweaking git repo https://github.com/bigbigtor/filesystem
[INFO] tweaked toml for git repo https://github.com/bigbigtor/filesystem written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/bigbigtor/filesystem already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 9edd0b08efce408afff5d6c8ff5d75cf359ca6551f957ab0e56c5bea6d619a02
[INFO] running `Command { std: "docker" "start" "-a" "9edd0b08efce408afff5d6c8ff5d75cf359ca6551f957ab0e56c5bea6d619a02", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9edd0b08efce408afff5d6c8ff5d75cf359ca6551f957ab0e56c5bea6d619a02", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9edd0b08efce408afff5d6c8ff5d75cf359ca6551f957ab0e56c5bea6d619a02", kill_on_drop: false }`
[INFO] [stdout] 9edd0b08efce408afff5d6c8ff5d75cf359ca6551f957ab0e56c5bea6d619a02
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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=forbid" "-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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fb6d4a7500d911d16e9528485e9b8ae55564427eb16e8731e14441243d02094c
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "fb6d4a7500d911d16e9528485e9b8ae55564427eb16e8731e14441243d02094c", kill_on_drop: false }`
[INFO] [stderr]     Checking filesystem v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::mem`
[INFO] [stdout]  --> src/inode.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::mem;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `inode_type`
[INFO] [stdout]  --> src/inode.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     inode_type: u8,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `permissions`
[INFO] [stdout]  --> src/inode.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     permissions: u8,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `atime`
[INFO] [stdout]  --> src/inode.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     atime: u16,          //access time
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `mtime`
[INFO] [stdout]   --> src/inode.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     mtime: u16,          //data modification time
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `ctime`
[INFO] [stdout]   --> src/inode.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     ctime: u16,          //inode modification time
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `link_number`
[INFO] [stdout]   --> src/inode.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     link_number: u16,    //number of link entries in directory
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `log_byte_size`
[INFO] [stdout]   --> src/inode.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     log_byte_size: u16,  //size in logic bytes
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `oc_data_blocks`
[INFO] [stdout]   --> src/inode.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     oc_data_blocks: u16, //number of ocupied data blocks
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `direct_pointers`
[INFO] [stdout]   --> src/inode.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     direct_pointers: [u16; 12],
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `indirect_pointers`
[INFO] [stdout]   --> src/inode.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 |     indirect_pointers: [u16; 3], //[0] simple indirect, [1] double indirect, [2] triple indirect
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `padding`
[INFO] [stdout]   --> src/inode.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     padding: [u8; 20],
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `first_bitmap_block`
[INFO] [stdout]  --> src/superblock.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     first_bitmap_block: u16,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `last_bitmap_block`
[INFO] [stdout]  --> src/superblock.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     last_bitmap_block: u16,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `last_inode_block`
[INFO] [stdout]   --> src/superblock.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     last_inode_block: u16,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `last_data_block`
[INFO] [stdout]   --> src/superblock.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     last_data_block: u16,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `root_dir_inode`
[INFO] [stdout]   --> src/superblock.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     root_dir_inode: u16,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `first_free_inode`
[INFO] [stdout]   --> src/superblock.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     first_free_inode: u16,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `free_inodes`
[INFO] [stdout]   --> src/superblock.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     free_inodes: u16,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `total_blocks`
[INFO] [stdout]   --> src/superblock.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     total_blocks: u16,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `padding`
[INFO] [stdout]   --> src/superblock.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     padding: [u8; 1000],
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 21 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `inode_type`
[INFO] [stdout]  --> src/inode.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     inode_type: u8,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `permissions`
[INFO] [stdout]  --> src/inode.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     permissions: u8,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `atime`
[INFO] [stdout]  --> src/inode.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     atime: u16,          //access time
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `mtime`
[INFO] [stdout]   --> src/inode.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     mtime: u16,          //data modification time
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `ctime`
[INFO] [stdout]   --> src/inode.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     ctime: u16,          //inode modification time
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `link_number`
[INFO] [stdout]   --> src/inode.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     link_number: u16,    //number of link entries in directory
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `log_byte_size`
[INFO] [stdout]   --> src/inode.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     log_byte_size: u16,  //size in logic bytes
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `oc_data_blocks`
[INFO] [stdout]   --> src/inode.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     oc_data_blocks: u16, //number of ocupied data blocks
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `direct_pointers`
[INFO] [stdout]   --> src/inode.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     direct_pointers: [u16; 12],
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `indirect_pointers`
[INFO] [stdout]   --> src/inode.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 |     indirect_pointers: [u16; 3], //[0] simple indirect, [1] double indirect, [2] triple indirect
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `padding`
[INFO] [stdout]   --> src/inode.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     padding: [u8; 20],
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `first_bitmap_block`
[INFO] [stdout]  --> src/superblock.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     first_bitmap_block: u16,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `last_bitmap_block`
[INFO] [stdout]  --> src/superblock.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     last_bitmap_block: u16,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `last_inode_block`
[INFO] [stdout]   --> src/superblock.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     last_inode_block: u16,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `last_data_block`
[INFO] [stdout]   --> src/superblock.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     last_data_block: u16,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `root_dir_inode`
[INFO] [stdout]   --> src/superblock.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     root_dir_inode: u16,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `first_free_inode`
[INFO] [stdout]   --> src/superblock.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     first_free_inode: u16,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `free_inodes`
[INFO] [stdout]   --> src/superblock.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     free_inodes: u16,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `total_blocks`
[INFO] [stdout]   --> src/superblock.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     total_blocks: u16,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `padding`
[INFO] [stdout]   --> src/superblock.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     padding: [u8; 1000],
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 20 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.84s
[INFO] running `Command { std: "docker" "inspect" "fb6d4a7500d911d16e9528485e9b8ae55564427eb16e8731e14441243d02094c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb6d4a7500d911d16e9528485e9b8ae55564427eb16e8731e14441243d02094c", kill_on_drop: false }`
[INFO] [stdout] fb6d4a7500d911d16e9528485e9b8ae55564427eb16e8731e14441243d02094c