[INFO] cloning repository https://github.com/smessmer/hddwiper
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/smessmer/hddwiper" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsmessmer%2Fhddwiper", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsmessmer%2Fhddwiper'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 275cf556ae57947da3ad744f34889474502a705f
[INFO] checking smessmer/hddwiper against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsmessmer%2Fhddwiper" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-1-tc2/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/smessmer/hddwiper
[INFO] finished tweaking git repo https://github.com/smessmer/hddwiper
[INFO] tweaked toml for git repo https://github.com/smessmer/hddwiper written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/smessmer/hddwiper on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/smessmer/hddwiper 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7dd2a057a3dc7b1d9a9993698eab7bd3f20820ad8081ed7322055415359ee500
[INFO] running `Command { std: "docker" "start" "-a" "7dd2a057a3dc7b1d9a9993698eab7bd3f20820ad8081ed7322055415359ee500", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7dd2a057a3dc7b1d9a9993698eab7bd3f20820ad8081ed7322055415359ee500", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7dd2a057a3dc7b1d9a9993698eab7bd3f20820ad8081ed7322055415359ee500", kill_on_drop: false }`
[INFO] [stdout] 7dd2a057a3dc7b1d9a9993698eab7bd3f20820ad8081ed7322055415359ee500
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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 -Dunmustuse_in_always_ok" "-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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 475e02734a9ceba700148b779043b8297117c74927d6f0387ee82a7d45e947f2
[INFO] running `Command { std: "docker" "start" "-a" "475e02734a9ceba700148b779043b8297117c74927d6f0387ee82a7d45e947f2", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.37
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]    Compiling libc v0.2.124
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]     Checking futures-sink v0.3.21
[INFO] [stderr]    Compiling futures-task v0.3.21
[INFO] [stderr]    Compiling futures-channel v0.3.21
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]     Checking pin-project-lite v0.2.8
[INFO] [stderr]    Compiling generic-array v0.14.5
[INFO] [stderr]    Compiling lock_api v0.4.7
[INFO] [stderr]    Compiling indexmap v1.8.1
[INFO] [stderr]    Compiling crossbeam-utils v0.8.8
[INFO] [stderr]    Compiling log v0.4.16
[INFO] [stderr]     Checking slab v0.4.6
[INFO] [stderr]     Checking futures-io v0.3.21
[INFO] [stderr]    Compiling async-trait v0.1.53
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling anyhow v1.0.57
[INFO] [stderr]     Checking os_str_bytes v6.0.0
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking running-average v0.1.0
[INFO] [stderr]     Checking clap_lex v0.1.1
[INFO] [stderr]     Checking spin v0.9.3
[INFO] [stderr]     Checking crossbeam-channel v0.5.4
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking getrandom v0.2.6
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking nanorand v0.7.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rdrand v0.8.2
[INFO] [stderr]     Checking regex v1.5.5
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking crypto-common v0.1.3
[INFO] [stderr]     Checking inout v0.1.3
[INFO] [stderr]     Checking cipher v0.4.3
[INFO] [stderr]     Checking salsa20 v0.10.2
[INFO] [stderr]     Checking env_logger v0.9.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling futures-macro v0.3.21
[INFO] [stderr]    Compiling pin-project-internal v1.0.10
[INFO] [stderr]    Compiling clap_derive v3.1.7
[INFO] [stderr]    Compiling tokio-macros v1.7.0
[INFO] [stderr]     Checking tokio v1.17.0
[INFO] [stderr]     Checking pin-project v1.0.10
[INFO] [stderr]     Checking flume v0.10.12
[INFO] [stderr]     Checking clap v3.1.12
[INFO] [stderr]     Checking futures-executor v0.3.21
[INFO] [stderr]     Checking futures v0.3.21
[INFO] [stderr]     Checking hddwiper v2.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `AsyncBlockSource` and `SyncBlockSource`
[INFO] [stdout]   --> src/byte_stream/mod.rs:51:24
[INFO] [stdout]    |
[INFO] [stdout] 51 | pub use block_source::{AsyncBlockSource, SyncBlockSource};
[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 import: `block_source_byte_stream::BlockSourceByteStream`
[INFO] [stdout]   --> src/byte_stream/mod.rs:53:9
[INFO] [stdout]    |
[INFO] [stdout] 53 | pub use block_source_byte_stream::BlockSourceByteStream;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ProductBlockSource`
[INFO] [stdout]   --> src/byte_stream/mod.rs:55:59
[INFO] [stdout]    |
[INFO] [stdout] 55 | pub use producer_byte_stream::{byte_stream_from_producer, ProductBlockSource};
[INFO] [stdout]    |                                                           ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `AsyncBlockSource`
[INFO] [stdout]   --> src/byte_stream/mod.rs:51:24
[INFO] [stdout]    |
[INFO] [stdout] 51 | pub use block_source::{AsyncBlockSource, SyncBlockSource};
[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 import: `block_source_byte_stream::BlockSourceByteStream`
[INFO] [stdout]   --> src/byte_stream/mod.rs:53:9
[INFO] [stdout]    |
[INFO] [stdout] 53 | pub use block_source_byte_stream::BlockSourceByteStream;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ProductBlockSource`
[INFO] [stdout]   --> src/byte_stream/mod.rs:55:59
[INFO] [stdout]    |
[INFO] [stdout] 55 | pub use producer_byte_stream::{byte_stream_from_producer, ProductBlockSource};
[INFO] [stdout]    |                                                           ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `async_read` is never used
[INFO] [stdout]   --> src/byte_stream/mod.rs:10:14
[INFO] [stdout]    |
[INFO] [stdout]  9 | pub trait AsyncByteStream {
[INFO] [stdout]    |           --------------- method in this trait
[INFO] [stdout] 10 |     async fn async_read(&mut self, dest: &mut [u8]) -> Result<()>;
[INFO] [stdout]    |              ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `async_read` is never used
[INFO] [stdout]   --> src/byte_stream/block_source.rs:10:14
[INFO] [stdout]    |
[INFO] [stdout]  9 | pub trait AsyncBlockSource {
[INFO] [stdout]    |           ---------------- method in this trait
[INFO] [stdout] 10 |     async fn async_read(&mut self) -> Result<Vec<u8>>;
[INFO] [stdout]    |              ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `async_get_product` and `try_get_product` are never used
[INFO] [stdout]    --> src/producer.rs:126:14
[INFO] [stdout]     |
[INFO] [stdout] 125 | pub trait ProductReceiver<T> {
[INFO] [stdout]     |           --------------- methods in this trait
[INFO] [stdout] 126 |     async fn async_get_product(&self) -> Result<T>;
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 129 |     fn try_get_product(&self) -> Result<T>;
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 | /     /// Number of bytes to skip at the start of the output file.
[INFO] [stdout] 31 | |     /// This can be useful if a previous wipe was interrupted and you
[INFO] [stdout] 32 | |     /// want to continue it.
[INFO] [stdout] 33 | |     /// You can either give the amount in bytes or use one of the
[INFO] [stdout] ...  |
[INFO] [stdout] 37 | |     #[clap(short, long, default_value_t = String::from("0"))]
[INFO] [stdout] 38 | |     skip_bytes: String,
[INFO] [stdout]    | |______________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:40:5
[INFO] [stdout]    |
[INFO] [stdout] 40 | /     /// Size of the random blocks that are generated, stored in memory, and in one
[INFO] [stdout] 41 | |     /// go written to the disk. For the allowed option syntax see the skip option
[INFO] [stdout] 42 | |     /// (example: --blocksize=10.2M)
[INFO] [stdout] 43 | |     /// Warning: With high blocksize, the amount of RAM required goes up. This can
[INFO] [stdout] 44 | |     /// cause the program to be killed.
[INFO] [stdout] 45 | |     #[clap(short, long, default_value_t = String::from("10M"))]
[INFO] [stdout] 46 | |     blocksize: String,
[INFO] [stdout]    | |_____________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:63:5
[INFO] [stdout]    |
[INFO] [stdout] 63 | /     /// The file or device to write the random bytes to
[INFO] [stdout] 64 | |     output_file: String,
[INFO] [stdout]    | |_______________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `hddwiper` (bin "hddwiper") due to 3 previous errors; 6 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: method `try_get_product` is never used
[INFO] [stdout]    --> src/producer.rs:129:8
[INFO] [stdout]     |
[INFO] [stdout] 125 | pub trait ProductReceiver<T> {
[INFO] [stdout]     |           --------------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 129 |     fn try_get_product(&self) -> Result<T>;
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 | /     /// Number of bytes to skip at the start of the output file.
[INFO] [stdout] 31 | |     /// This can be useful if a previous wipe was interrupted and you
[INFO] [stdout] 32 | |     /// want to continue it.
[INFO] [stdout] 33 | |     /// You can either give the amount in bytes or use one of the
[INFO] [stdout] ...  |
[INFO] [stdout] 37 | |     #[clap(short, long, default_value_t = String::from("0"))]
[INFO] [stdout] 38 | |     skip_bytes: String,
[INFO] [stdout]    | |______________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:40:5
[INFO] [stdout]    |
[INFO] [stdout] 40 | /     /// Size of the random blocks that are generated, stored in memory, and in one
[INFO] [stdout] 41 | |     /// go written to the disk. For the allowed option syntax see the skip option
[INFO] [stdout] 42 | |     /// (example: --blocksize=10.2M)
[INFO] [stdout] 43 | |     /// Warning: With high blocksize, the amount of RAM required goes up. This can
[INFO] [stdout] 44 | |     /// cause the program to be killed.
[INFO] [stdout] 45 | |     #[clap(short, long, default_value_t = String::from("10M"))]
[INFO] [stdout] 46 | |     blocksize: String,
[INFO] [stdout]    | |_____________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:63:5
[INFO] [stdout]    |
[INFO] [stdout] 63 | /     /// The file or device to write the random bytes to
[INFO] [stdout] 64 | |     output_file: String,
[INFO] [stdout]    | |_______________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `hddwiper` (bin "hddwiper" test) due to 3 previous errors; 4 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "475e02734a9ceba700148b779043b8297117c74927d6f0387ee82a7d45e947f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "475e02734a9ceba700148b779043b8297117c74927d6f0387ee82a7d45e947f2", kill_on_drop: false }`
[INFO] [stdout] 475e02734a9ceba700148b779043b8297117c74927d6f0387ee82a7d45e947f2
