[INFO] cloning repository https://github.com/piohei/file_vec
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/piohei/file_vec" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpiohei%2Ffile_vec", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpiohei%2Ffile_vec'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 55ebc42d270e3ff94714be9d187feb42c2256b1b
[INFO] testing piohei/file_vec against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpiohei%2Ffile_vec" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-4-tc1/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/piohei/file_vec
[INFO] finished tweaking git repo https://github.com/piohei/file_vec
[INFO] tweaked toml for git repo https://github.com/piohei/file_vec written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/piohei/file_vec on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/piohei/file_vec already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded memmap2 v0.9.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b2ea646e37e8588f4ee052a8750055272ebb6965e16505f4cfaa773526320053
[INFO] running `Command { std: "docker" "start" "-a" "b2ea646e37e8588f4ee052a8750055272ebb6965e16505f4cfaa773526320053", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b2ea646e37e8588f4ee052a8750055272ebb6965e16505f4cfaa773526320053", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2ea646e37e8588f4ee052a8750055272ebb6965e16505f4cfaa773526320053", kill_on_drop: false }`
[INFO] [stdout] b2ea646e37e8588f4ee052a8750055272ebb6965e16505f4cfaa773526320053
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a80d2417f7884d34c97c4b6cb676c750a622246e2c3f73912e7ea75d58182d29
[INFO] running `Command { std: "docker" "start" "-a" "a80d2417f7884d34c97c4b6cb676c750a622246e2c3f73912e7ea75d58182d29", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling libc v0.2.174
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]    Compiling getrandom v0.3.3
[INFO] [stderr]    Compiling rustix v1.0.8
[INFO] [stderr]    Compiling cfg-if v1.0.1
[INFO] [stderr]    Compiling bitflags v2.9.1
[INFO] [stderr]    Compiling linux-raw-sys v0.9.4
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling once_cell v1.21.3
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling crossbeam-deque v0.8.6
[INFO] [stderr]    Compiling memmap2 v0.9.7
[INFO] [stderr]    Compiling rayon v1.10.0
[INFO] [stderr]    Compiling tempfile v3.20.0
[INFO] [stderr]    Compiling file_vec v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `GlobalAlloc`
[INFO] [stdout]  --> src/mem_file_vec.rs:2:41
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::alloc::{AllocError, Allocator, GlobalAlloc, Layout};
[INFO] [stdout]   |                                         ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Read` and `Write`
[INFO] [stdout]  --> src/mem_file_vec.rs:5:15
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::io::{Read, Write};
[INFO] [stdout]   |               ^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `DerefMut` and `Deref`
[INFO] [stdout]  --> src/mem_file_vec.rs:6:16
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::ops::{Deref, DerefMut};
[INFO] [stdout]   |                ^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `filevec`
[INFO] [stdout]    --> src/mem_file_vec.rs:145:16
[INFO] [stdout]     |
[INFO] [stdout] 145 | pub(crate) use filevec;
[INFO] [stdout]     |                ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `FileVec`
[INFO] [stdout]    --> src/mem_file_vec.rs:148:31
[INFO] [stdout]     |
[INFO] [stdout] 148 |     use crate::mem_file_vec::{FileVec};
[INFO] [stdout]     |                               ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate-level attribute should be an inner attribute
[INFO] [stdout]  --> src/mem_file_vec.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[feature(allocator_api)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_attributes)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: add a `!`
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(allocator_api)]
[INFO] [stdout]   |  +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/mem_file_vec.rs:53:21
[INFO] [stdout]    |
[INFO] [stdout] 53 |             size => unsafe {
[INFO] [stdout]    |                     ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_unsafe)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `file` is never read
[INFO] [stdout]   --> src/mem_file_vec.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub struct MemMap2File {
[INFO] [stdout]    |            ----------- field in this struct
[INFO] [stdout] 18 |     file: File,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.58s
[INFO] running `Command { std: "docker" "inspect" "a80d2417f7884d34c97c4b6cb676c750a622246e2c3f73912e7ea75d58182d29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a80d2417f7884d34c97c4b6cb676c750a622246e2c3f73912e7ea75d58182d29", kill_on_drop: false }`
[INFO] [stdout] a80d2417f7884d34c97c4b6cb676c750a622246e2c3f73912e7ea75d58182d29
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2f6474e224297aae544563129a9b1e7a8c37c863b70f4a2240768093bb776908
[INFO] running `Command { std: "docker" "start" "-a" "2f6474e224297aae544563129a9b1e7a8c37c863b70f4a2240768093bb776908", kill_on_drop: false }`
[INFO] [stdout] warning: unused import: `GlobalAlloc`
[INFO] [stdout]  --> src/mem_file_vec.rs:2:41
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::alloc::{AllocError, Allocator, GlobalAlloc, Layout};
[INFO] [stdout]   |                                         ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Read` and `Write`
[INFO] [stdout]  --> src/mem_file_vec.rs:5:15
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::io::{Read, Write};
[INFO] [stdout]   |               ^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `DerefMut` and `Deref`
[INFO] [stdout]  --> src/mem_file_vec.rs:6:16
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::ops::{Deref, DerefMut};
[INFO] [stdout]   |                ^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `filevec`
[INFO] [stdout]    --> src/mem_file_vec.rs:145:16
[INFO] [stdout]     |
[INFO] [stdout] 145 | pub(crate) use filevec;
[INFO] [stdout]     |                ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling file_vec v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `FileVec`
[INFO] [stdout]    --> src/mem_file_vec.rs:148:31
[INFO] [stdout]     |
[INFO] [stdout] 148 |     use crate::mem_file_vec::{FileVec};
[INFO] [stdout]     |                               ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate-level attribute should be an inner attribute
[INFO] [stdout]  --> src/mem_file_vec.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[feature(allocator_api)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_attributes)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: add a `!`
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(allocator_api)]
[INFO] [stdout]   |  +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/mem_file_vec.rs:53:21
[INFO] [stdout]    |
[INFO] [stdout] 53 |             size => unsafe {
[INFO] [stdout]    |                     ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_unsafe)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `file` is never read
[INFO] [stdout]   --> src/mem_file_vec.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub struct MemMap2File {
[INFO] [stdout]    |            ----------- field in this struct
[INFO] [stdout] 18 |     file: File,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `GlobalAlloc`
[INFO] [stdout]  --> src/mem_file_vec.rs:2:41
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::alloc::{AllocError, Allocator, GlobalAlloc, Layout};
[INFO] [stdout]   |                                         ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Read` and `Write`
[INFO] [stdout]  --> src/mem_file_vec.rs:5:15
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::io::{Read, Write};
[INFO] [stdout]   |               ^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `DerefMut` and `Deref`
[INFO] [stdout]  --> src/mem_file_vec.rs:6:16
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::ops::{Deref, DerefMut};
[INFO] [stdout]   |                ^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `filevec`
[INFO] [stdout]    --> src/mem_file_vec.rs:145:16
[INFO] [stdout]     |
[INFO] [stdout] 145 | pub(crate) use filevec;
[INFO] [stdout]     |                ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate-level attribute should be an inner attribute
[INFO] [stdout]  --> src/mem_file_vec.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[feature(allocator_api)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_attributes)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: add a `!`
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(allocator_api)]
[INFO] [stdout]   |  +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/mem_file_vec.rs:53:21
[INFO] [stdout]    |
[INFO] [stdout] 53 |             size => unsafe {
[INFO] [stdout]    |                     ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_unsafe)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `file` is never read
[INFO] [stdout]   --> src/mem_file_vec.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub struct MemMap2File {
[INFO] [stdout]    |            ----------- field in this struct
[INFO] [stdout] 18 |     file: File,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.65s
[INFO] running `Command { std: "docker" "inspect" "2f6474e224297aae544563129a9b1e7a8c37c863b70f4a2240768093bb776908", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f6474e224297aae544563129a9b1e7a8c37c863b70f4a2240768093bb776908", kill_on_drop: false }`
[INFO] [stdout] 2f6474e224297aae544563129a9b1e7a8c37c863b70f4a2240768093bb776908
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 08e23fb498e6aa437954f2463fa7379317eb8fb4d0cb03feb492dbaaba230017
[INFO] running `Command { std: "docker" "start" "-a" "08e23fb498e6aa437954f2463fa7379317eb8fb4d0cb03feb492dbaaba230017", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `GlobalAlloc`
[INFO] [stderr]  --> src/mem_file_vec.rs:2:41
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::alloc::{AllocError, Allocator, GlobalAlloc, Layout};
[INFO] [stderr]   |                                         ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Read` and `Write`
[INFO] [stderr]  --> src/mem_file_vec.rs:5:15
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::io::{Read, Write};
[INFO] [stderr]   |               ^^^^  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `DerefMut` and `Deref`
[INFO] [stderr]  --> src/mem_file_vec.rs:6:16
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::ops::{Deref, DerefMut};
[INFO] [stderr]   |                ^^^^^  ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `filevec`
[INFO] [stderr]    --> src/mem_file_vec.rs:145:16
[INFO] [stderr]     |
[INFO] [stderr] 145 | pub(crate) use filevec;
[INFO] [stderr]     |                ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `FileVec`
[INFO] [stderr]    --> src/mem_file_vec.rs:148:31
[INFO] [stderr]     |
[INFO] [stderr] 148 |     use crate::mem_file_vec::{FileVec};
[INFO] [stderr]     |                               ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: crate-level attribute should be an inner attribute
[INFO] [stderr]  --> src/mem_file_vec.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #[feature(allocator_api)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_attributes)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: add a `!`
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(allocator_api)]
[INFO] [stderr]   |  +
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary `unsafe` block
[INFO] [stderr]   --> src/mem_file_vec.rs:53:21
[INFO] [stderr]    |
[INFO] [stderr] 53 |             size => unsafe {
[INFO] [stderr]    |                     ^^^^^^ unnecessary `unsafe` block
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_unsafe)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field `file` is never read
[INFO] [stderr]   --> src/mem_file_vec.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 17 | pub struct MemMap2File {
[INFO] [stderr]    |            ----------- field in this struct
[INFO] [stderr] 18 |     file: File,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `file_vec` (lib) generated 8 warnings (run `cargo fix --lib -p file_vec` to apply 5 suggestions)
[INFO] [stderr] warning: `file_vec` (lib test) generated 7 warnings (7 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/file_vec-1cbcdf0f78291377)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test mem_file_vec::tests::test_access_to_memory ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests file_vec
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "08e23fb498e6aa437954f2463fa7379317eb8fb4d0cb03feb492dbaaba230017", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08e23fb498e6aa437954f2463fa7379317eb8fb4d0cb03feb492dbaaba230017", kill_on_drop: false }`
[INFO] [stdout] 08e23fb498e6aa437954f2463fa7379317eb8fb4d0cb03feb492dbaaba230017