[INFO] cloning repository https://github.com/iqbalhrasel/rust-stdlib-explore
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/iqbalhrasel/rust-stdlib-explore" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiqbalhrasel%2Frust-stdlib-explore", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiqbalhrasel%2Frust-stdlib-explore'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ddadcc1aa5134dcce6a22a6ddb0fe43f0e3f6f41
[INFO] testing iqbalhrasel/rust-stdlib-explore against 1.95.0 for beta-1.96-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiqbalhrasel%2Frust-stdlib-explore" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/iqbalhrasel/rust-stdlib-explore
[INFO] finished tweaking git repo https://github.com/iqbalhrasel/rust-stdlib-explore
[INFO] tweaked toml for git repo https://github.com/iqbalhrasel/rust-stdlib-explore written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/iqbalhrasel/rust-stdlib-explore on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/iqbalhrasel/rust-stdlib-explore 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" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] afd82a8b22c8c9e32106c305d206dc73760e95996c17e970b81863fdc4e76286
[INFO] running `Command { std: "docker" "start" "-a" "afd82a8b22c8c9e32106c305d206dc73760e95996c17e970b81863fdc4e76286", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "afd82a8b22c8c9e32106c305d206dc73760e95996c17e970b81863fdc4e76286", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "afd82a8b22c8c9e32106c305d206dc73760e95996c17e970b81863fdc4e76286", kill_on_drop: false }`
[INFO] [stdout] afd82a8b22c8c9e32106c305d206dc73760e95996c17e970b81863fdc4e76286
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 638938bf8fda2372bd9396ff96bab575304fd02e763107a90e0a9def100fa881
[INFO] running `Command { std: "docker" "start" "-a" "638938bf8fda2372bd9396ff96bab575304fd02e763107a90e0a9def100fa881", kill_on_drop: false }`
[INFO] [stderr]    Compiling std_lib v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `fs_file_errorkind::file_errorkind`, `openoptions_append`, `openoptions_create_safely`, `openoptions_create`, `openoptions_overwrite`, `openoptions_read_write`, and `use_openoptions_read`
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     fs_file_errorkind::file_errorkind,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 3 |     fs_file_openoptions::{
[INFO] [stdout] 4 |         logging, openoptions_append, openoptions_create, openoptions_create_safely,
[INFO] [stdout]   |                  ^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 5 |         openoptions_overwrite, openoptions_read_write, use_openoptions_read,
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `create_write_file` is never used
[INFO] [stdout]   --> src/std_rs/fs_file.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub fn create_write_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: function `create_write_all_file` is never used
[INFO] [stdout]   --> src/std_rs/fs_file.rs:33:8
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub fn create_write_all_file() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `create_bufwriter_file` is never used
[INFO] [stdout]   --> src/std_rs/fs_file.rs:46:8
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub fn create_bufwriter_file() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `create_bufwriter_writer_file` is never used
[INFO] [stdout]   --> src/std_rs/fs_file.rs:64:8
[INFO] [stdout]    |
[INFO] [stdout] 64 | pub fn create_bufwriter_writer_file() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_file` is never used
[INFO] [stdout]   --> src/std_rs/fs_file.rs:86:8
[INFO] [stdout]    |
[INFO] [stdout] 86 | pub fn read_file() {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_file_tostr` is never used
[INFO] [stdout]    --> src/std_rs/fs_file.rs:105:8
[INFO] [stdout]     |
[INFO] [stdout] 105 | pub fn read_file_tostr() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_file_bufreader_tostr` is never used
[INFO] [stdout]    --> src/std_rs/fs_file.rs:127:8
[INFO] [stdout]     |
[INFO] [stdout] 127 | pub fn read_file_bufreader_tostr() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_file_stream` is never used
[INFO] [stdout]    --> src/std_rs/fs_file.rs:159:8
[INFO] [stdout]     |
[INFO] [stdout] 159 | pub fn read_file_stream() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `custom_buffer_bufferreader` is never used
[INFO] [stdout]    --> src/std_rs/fs_file.rs:183:8
[INFO] [stdout]     |
[INFO] [stdout] 183 | pub fn custom_buffer_bufferreader() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `custom_buffer_bufferwriter` is never used
[INFO] [stdout]    --> src/std_rs/fs_file.rs:196:8
[INFO] [stdout]     |
[INFO] [stdout] 196 | pub fn custom_buffer_bufferwriter() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `file_errorkind` is never used
[INFO] [stdout]  --> src/std_rs/fs_file_errorkind.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn file_errorkind() {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `use_openoptions_read` is never used
[INFO] [stdout]  --> src/std_rs/fs_file_openoptions.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn use_openoptions_read() {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `openoptions_read_write` is never used
[INFO] [stdout]   --> src/std_rs/fs_file_openoptions.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub fn openoptions_read_write() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `openoptions_create` is never used
[INFO] [stdout]   --> src/std_rs/fs_file_openoptions.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub fn openoptions_create() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `openoptions_create_safely` is never used
[INFO] [stdout]   --> src/std_rs/fs_file_openoptions.rs:45:8
[INFO] [stdout]    |
[INFO] [stdout] 45 | pub fn openoptions_create_safely() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `openoptions_append` is never used
[INFO] [stdout]   --> src/std_rs/fs_file_openoptions.rs:60:8
[INFO] [stdout]    |
[INFO] [stdout] 60 | pub fn openoptions_append() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `openoptions_overwrite` is never used
[INFO] [stdout]   --> src/std_rs/fs_file_openoptions.rs:74:8
[INFO] [stdout]    |
[INFO] [stdout] 74 | pub fn openoptions_overwrite() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_first_byte` is never used
[INFO] [stdout]  --> src/std_rs/fs_file_traits.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn read_first_byte<T: Read>(reader: &mut T) {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `copy_all` is never used
[INFO] [stdout]   --> src/std_rs/fs_file_traits.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub fn copy_all<R: Read, W: Write>(reader: &mut R, writer: &mut W) {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `file_seek` is never used
[INFO] [stdout]   --> src/std_rs/fs_file_traits.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub fn file_seek(file: &mut File, start_from: u64) {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.30s
[INFO] running `Command { std: "docker" "inspect" "638938bf8fda2372bd9396ff96bab575304fd02e763107a90e0a9def100fa881", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "638938bf8fda2372bd9396ff96bab575304fd02e763107a90e0a9def100fa881", kill_on_drop: false }`
[INFO] [stdout] 638938bf8fda2372bd9396ff96bab575304fd02e763107a90e0a9def100fa881
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3d3edfcdde315e4080fcae57edb254a852d56d4139ccd2170014d64922982f1b
[INFO] running `Command { std: "docker" "start" "-a" "3d3edfcdde315e4080fcae57edb254a852d56d4139ccd2170014d64922982f1b", kill_on_drop: false }`
[INFO] [stderr]    Compiling std_lib v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `fs_file_errorkind::file_errorkind`, `openoptions_append`, `openoptions_create_safely`, `openoptions_create`, `openoptions_overwrite`, `openoptions_read_write`, and `use_openoptions_read`
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     fs_file_errorkind::file_errorkind,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 3 |     fs_file_openoptions::{
[INFO] [stdout] 4 |         logging, openoptions_append, openoptions_create, openoptions_create_safely,
[INFO] [stdout]   |                  ^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 5 |         openoptions_overwrite, openoptions_read_write, use_openoptions_read,
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `create_write_file` is never used
[INFO] [stdout]   --> src/std_rs/fs_file.rs:17:8
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub fn create_write_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: function `create_write_all_file` is never used
[INFO] [stdout]   --> src/std_rs/fs_file.rs:33:8
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub fn create_write_all_file() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `create_bufwriter_file` is never used
[INFO] [stdout]   --> src/std_rs/fs_file.rs:46:8
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub fn create_bufwriter_file() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `create_bufwriter_writer_file` is never used
[INFO] [stdout]   --> src/std_rs/fs_file.rs:64:8
[INFO] [stdout]    |
[INFO] [stdout] 64 | pub fn create_bufwriter_writer_file() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_file` is never used
[INFO] [stdout]   --> src/std_rs/fs_file.rs:86:8
[INFO] [stdout]    |
[INFO] [stdout] 86 | pub fn read_file() {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_file_tostr` is never used
[INFO] [stdout]    --> src/std_rs/fs_file.rs:105:8
[INFO] [stdout]     |
[INFO] [stdout] 105 | pub fn read_file_tostr() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_file_bufreader_tostr` is never used
[INFO] [stdout]    --> src/std_rs/fs_file.rs:127:8
[INFO] [stdout]     |
[INFO] [stdout] 127 | pub fn read_file_bufreader_tostr() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_file_stream` is never used
[INFO] [stdout]    --> src/std_rs/fs_file.rs:159:8
[INFO] [stdout]     |
[INFO] [stdout] 159 | pub fn read_file_stream() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `custom_buffer_bufferreader` is never used
[INFO] [stdout]    --> src/std_rs/fs_file.rs:183:8
[INFO] [stdout]     |
[INFO] [stdout] 183 | pub fn custom_buffer_bufferreader() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `custom_buffer_bufferwriter` is never used
[INFO] [stdout]    --> src/std_rs/fs_file.rs:196:8
[INFO] [stdout]     |
[INFO] [stdout] 196 | pub fn custom_buffer_bufferwriter() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `file_errorkind` is never used
[INFO] [stdout]  --> src/std_rs/fs_file_errorkind.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn file_errorkind() {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `use_openoptions_read` is never used
[INFO] [stdout]  --> src/std_rs/fs_file_openoptions.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn use_openoptions_read() {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `openoptions_read_write` is never used
[INFO] [stdout]   --> src/std_rs/fs_file_openoptions.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub fn openoptions_read_write() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `openoptions_create` is never used
[INFO] [stdout]   --> src/std_rs/fs_file_openoptions.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub fn openoptions_create() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `openoptions_create_safely` is never used
[INFO] [stdout]   --> src/std_rs/fs_file_openoptions.rs:45:8
[INFO] [stdout]    |
[INFO] [stdout] 45 | pub fn openoptions_create_safely() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `openoptions_append` is never used
[INFO] [stdout]   --> src/std_rs/fs_file_openoptions.rs:60:8
[INFO] [stdout]    |
[INFO] [stdout] 60 | pub fn openoptions_append() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `openoptions_overwrite` is never used
[INFO] [stdout]   --> src/std_rs/fs_file_openoptions.rs:74:8
[INFO] [stdout]    |
[INFO] [stdout] 74 | pub fn openoptions_overwrite() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_first_byte` is never used
[INFO] [stdout]  --> src/std_rs/fs_file_traits.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn read_first_byte<T: Read>(reader: &mut T) {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `copy_all` is never used
[INFO] [stdout]   --> src/std_rs/fs_file_traits.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub fn copy_all<R: Read, W: Write>(reader: &mut R, writer: &mut W) {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `file_seek` is never used
[INFO] [stdout]   --> src/std_rs/fs_file_traits.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub fn file_seek(file: &mut File, start_from: u64) {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `Command { std: "docker" "inspect" "3d3edfcdde315e4080fcae57edb254a852d56d4139ccd2170014d64922982f1b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d3edfcdde315e4080fcae57edb254a852d56d4139ccd2170014d64922982f1b", kill_on_drop: false }`
[INFO] [stdout] 3d3edfcdde315e4080fcae57edb254a852d56d4139ccd2170014d64922982f1b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4cacd69dcb381076d912d834242d304f405a16dd905994eae6fb89f73773b7ec
[INFO] running `Command { std: "docker" "start" "-a" "4cacd69dcb381076d912d834242d304f405a16dd905994eae6fb89f73773b7ec", kill_on_drop: false }`
[INFO] [stderr] warning: unused imports: `fs_file_errorkind::file_errorkind`, `openoptions_append`, `openoptions_create_safely`, `openoptions_create`, `openoptions_overwrite`, `openoptions_read_write`, and `use_openoptions_read`
[INFO] [stdout] 
[INFO] [stderr]  --> src/main.rs:2:5
[INFO] [stdout] running 0 tests
[INFO] [stderr]   |
[INFO] [stdout] 
[INFO] [stderr] 2 |     fs_file_errorkind::file_errorkind,
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stderr] 3 |     fs_file_openoptions::{
[INFO] [stderr] 4 |         logging, openoptions_append, openoptions_create, openoptions_create_safely,
[INFO] [stderr]   |                  ^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 5 |         openoptions_overwrite, openoptions_read_write, use_openoptions_read,
[INFO] [stderr]   |         ^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `create_write_file` is never used
[INFO] [stderr]   --> src/std_rs/fs_file.rs:17:8
[INFO] [stderr]    |
[INFO] [stderr] 17 | pub fn create_write_file() {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `create_write_all_file` is never used
[INFO] [stderr]   --> src/std_rs/fs_file.rs:33:8
[INFO] [stderr]    |
[INFO] [stderr] 33 | pub fn create_write_all_file() {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `create_bufwriter_file` is never used
[INFO] [stderr]   --> src/std_rs/fs_file.rs:46:8
[INFO] [stderr]    |
[INFO] [stderr] 46 | pub fn create_bufwriter_file() {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `create_bufwriter_writer_file` is never used
[INFO] [stderr]   --> src/std_rs/fs_file.rs:64:8
[INFO] [stderr]    |
[INFO] [stderr] 64 | pub fn create_bufwriter_writer_file() {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `read_file` is never used
[INFO] [stderr]   --> src/std_rs/fs_file.rs:86:8
[INFO] [stderr]    |
[INFO] [stderr] 86 | pub fn read_file() {
[INFO] [stderr]    |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `read_file_tostr` is never used
[INFO] [stderr]    --> src/std_rs/fs_file.rs:105:8
[INFO] [stderr]     |
[INFO] [stderr] 105 | pub fn read_file_tostr() {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `read_file_bufreader_tostr` is never used
[INFO] [stderr]    --> src/std_rs/fs_file.rs:127:8
[INFO] [stderr]     |
[INFO] [stderr] 127 | pub fn read_file_bufreader_tostr() {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `read_file_stream` is never used
[INFO] [stderr]    --> src/std_rs/fs_file.rs:159:8
[INFO] [stderr]     |
[INFO] [stderr] 159 | pub fn read_file_stream() {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `custom_buffer_bufferreader` is never used
[INFO] [stderr]    --> src/std_rs/fs_file.rs:183:8
[INFO] [stderr]     |
[INFO] [stderr] 183 | pub fn custom_buffer_bufferreader() {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `custom_buffer_bufferwriter` is never used
[INFO] [stderr]    --> src/std_rs/fs_file.rs:196:8
[INFO] [stderr]     |
[INFO] [stderr] 196 | pub fn custom_buffer_bufferwriter() {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `file_errorkind` is never used
[INFO] [stderr]  --> src/std_rs/fs_file_errorkind.rs:3:8
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn file_errorkind() {
[INFO] [stderr]   |        ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `use_openoptions_read` is never used
[INFO] [stderr]  --> src/std_rs/fs_file_openoptions.rs:6:8
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub fn use_openoptions_read() {
[INFO] [stderr]   |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `openoptions_read_write` is never used
[INFO] [stderr]   --> src/std_rs/fs_file_openoptions.rs:20:8
[INFO] [stderr]    |
[INFO] [stderr] 20 | pub fn openoptions_read_write() {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `openoptions_create` is never used
[INFO] [stderr]   --> src/std_rs/fs_file_openoptions.rs:32:8
[INFO] [stderr]    |
[INFO] [stderr] 32 | pub fn openoptions_create() {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `openoptions_create_safely` is never used
[INFO] [stderr]   --> src/std_rs/fs_file_openoptions.rs:45:8
[INFO] [stderr]    |
[INFO] [stderr] 45 | pub fn openoptions_create_safely() {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `openoptions_append` is never used
[INFO] [stderr]   --> src/std_rs/fs_file_openoptions.rs:60:8
[INFO] [stderr]    |
[INFO] [stderr] 60 | pub fn openoptions_append() {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `openoptions_overwrite` is never used
[INFO] [stderr]   --> src/std_rs/fs_file_openoptions.rs:74:8
[INFO] [stderr]    |
[INFO] [stderr] 74 | pub fn openoptions_overwrite() {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `read_first_byte` is never used
[INFO] [stderr]  --> src/std_rs/fs_file_traits.rs:6:8
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub fn read_first_byte<T: Read>(reader: &mut T) {
[INFO] [stderr]   |        ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `copy_all` is never used
[INFO] [stderr]   --> src/std_rs/fs_file_traits.rs:12:8
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub fn copy_all<R: Read, W: Write>(reader: &mut R, writer: &mut W) {
[INFO] [stderr]    |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `file_seek` is never used
[INFO] [stderr]   --> src/std_rs/fs_file_traits.rs:24:8
[INFO] [stderr]    |
[INFO] [stderr] 24 | pub fn file_seek(file: &mut File, start_from: u64) {
[INFO] [stderr]    |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `std_lib` (bin "std_lib" test) generated 21 warnings (run `cargo fix --bin "std_lib" -p std_lib --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/std_lib-d105c45324d0de98)
[INFO] running `Command { std: "docker" "inspect" "4cacd69dcb381076d912d834242d304f405a16dd905994eae6fb89f73773b7ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4cacd69dcb381076d912d834242d304f405a16dd905994eae6fb89f73773b7ec", kill_on_drop: false }`
[INFO] [stdout] 4cacd69dcb381076d912d834242d304f405a16dd905994eae6fb89f73773b7ec
