[INFO] fetching crate VTMK 0.1.0...
[INFO] checking VTMK-0.1.0 against master#b286722878e18db29a7fbe672be7c4d3b02e8e4d for pr-127655
[INFO] extracting crate VTMK 0.1.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate VTMK 0.1.0 on toolchain b286722878e18db29a7fbe672be7c4d3b02e8e4d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b286722878e18db29a7fbe672be7c4d3b02e8e4d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate VTMK 0.1.0
[INFO] finished tweaking crates.io crate VTMK 0.1.0
[INFO] tweaked toml for crates.io crate VTMK 0.1.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate VTMK 0.1.0 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" "+b286722878e18db29a7fbe672be7c4d3b02e8e4d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: version requirement `0.9.0+zstd.1.5.0` for dependency `zstd` includes semver metadata which will be ignored, removing the metadata is recommended to avoid confusion
[INFO] [stderr] warning: version requirement `4.1.1+zstd.1.5.0` for dependency `zstd-safe` includes semver metadata which will be ignored, removing the metadata is recommended to avoid confusion
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded unicode-xid v0.2.2
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[INFO] [stderr]   Downloaded hermit-abi v0.1.19
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[INFO] [stderr]   Downloaded memchr v2.4.1
[INFO] [stderr]   Downloaded yaml-rust v0.4.5
[INFO] [stderr]   Downloaded serde v1.0.130
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[INFO] [stderr]   Downloaded clap_derive v3.0.0-beta.5
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[INFO] [stderr]   Downloaded wasi v0.10.2+wasi-snapshot-preview1
[INFO] [stderr]   Downloaded getrandom v0.2.3
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[INFO] [stderr]   Downloaded zstd v0.9.0+zstd.1.5.0
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[INFO] [stderr]   Downloaded os_str_bytes v4.2.0
[INFO] [stderr]   Downloaded termcolor v1.1.2
[INFO] [stderr]   Downloaded zstd-safe v4.1.1+zstd.1.5.0
[INFO] [stderr]   Downloaded zstd-sys v1.6.1+zstd.1.5.0
[INFO] [stderr]   Downloaded libc v0.2.104
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[INFO] [stderr]   Downloaded winapi-i686-pc-windows-gnu v0.4.0
[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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+b286722878e18db29a7fbe672be7c4d3b02e8e4d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 32c99bc195d4985411fa1d204e4cda0b078a15d05a08e0d2521fda3fe840bbec
[INFO] running `Command { std: "docker" "start" "-a" "32c99bc195d4985411fa1d204e4cda0b078a15d05a08e0d2521fda3fe840bbec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "32c99bc195d4985411fa1d204e4cda0b078a15d05a08e0d2521fda3fe840bbec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32c99bc195d4985411fa1d204e4cda0b078a15d05a08e0d2521fda3fe840bbec", kill_on_drop: false }`
[INFO] [stdout] 32c99bc195d4985411fa1d204e4cda0b078a15d05a08e0d2521fda3fe840bbec
[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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+b286722878e18db29a7fbe672be7c4d3b02e8e4d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1e9482260f3b0b1a2333ec522fd508240a4c4197ceed274a62b2c29dc4a1f101
[INFO] running `Command { std: "docker" "start" "-a" "1e9482260f3b0b1a2333ec522fd508240a4c4197ceed274a62b2c29dc4a1f101", kill_on_drop: false }`
[INFO] [stderr] warning: version requirement `0.9.0+zstd.1.5.0` for dependency `zstd` includes semver metadata which will be ignored, removing the metadata is recommended to avoid confusion
[INFO] [stderr] warning: version requirement `4.1.1+zstd.1.5.0` for dependency `zstd-safe` includes semver metadata which will be ignored, removing the metadata is recommended to avoid confusion
[INFO] [stderr]    Compiling libc v0.2.104
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.82
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling zstd-safe v4.1.1+zstd.1.5.0
[INFO] [stderr]     Checking linked-hash-map v0.5.4
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]     Checking textwrap v0.14.2
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking yaml-rust v0.4.5
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking os_str_bytes v4.2.0
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling jobserver v0.1.24
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]    Compiling cc v1.0.71
[INFO] [stderr]    Compiling zstd-sys v1.6.1+zstd.1.5.0
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]    Compiling clap_derive v3.0.0-beta.5
[INFO] [stderr]     Checking clap v3.0.0-beta.5
[INFO] [stderr]     Checking zstd v0.9.0+zstd.1.5.0
[INFO] [stderr]     Checking VTMK v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `compress`
[INFO] [stdout]  --> src/zipping.rs:2:21
[INFO] [stdout]   |
[INFO] [stdout] 2 |     use zstd_safe::{compress, max_c_level, CompressionLevel, SafeResult};
[INFO] [stdout]   |                     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `zipping::*`
[INFO] [stdout]  --> src/main.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use zipping::*;
[INFO] [stdout]   |         ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `compress`
[INFO] [stdout]  --> src/zipping.rs:2:21
[INFO] [stdout]   |
[INFO] [stdout] 2 |     use zstd_safe::{compress, max_c_level, CompressionLevel, SafeResult};
[INFO] [stdout]   |                     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `zipping::*`
[INFO] [stdout]  --> src/main.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub use zipping::*;
[INFO] [stdout]   |         ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `config`
[INFO] [stdout]   --> src/zipping.rs:34:28
[INFO] [stdout]    |
[INFO] [stdout] 34 |         fn compress(&self, config: ZstdConfig) -> SafeResult {
[INFO] [stdout]    |                            ^^^^^^ help: if this is intentional, prefix it with an underscore: `_config`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `config`
[INFO] [stdout]   --> src/zipping.rs:34:28
[INFO] [stdout]    |
[INFO] [stdout] 34 |         fn compress(&self, config: ZstdConfig) -> SafeResult {
[INFO] [stdout]    |                            ^^^^^^ help: if this is intentional, prefix it with an underscore: `_config`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `EXTENSION` is never used
[INFO] [stdout]  --> src/zipping.rs:5:15
[INFO] [stdout]   |
[INFO] [stdout] 5 |     pub const EXTENSION: &'static str = ".vlog";
[INFO] [stdout]   |               ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `make_dictionary_file` is never read
[INFO] [stdout]   --> src/zipping.rs:13:13
[INFO] [stdout]    |
[INFO] [stdout] 8  |     pub struct ZstdConfig {
[INFO] [stdout]    |                ---------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 13 |         pub make_dictionary_file: bool,
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `EXTENSION` is never used
[INFO] [stdout]  --> src/zipping.rs:5:15
[INFO] [stdout]   |
[INFO] [stdout] 5 |     pub const EXTENSION: &'static str = ".vlog";
[INFO] [stdout]   |               ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Compress` is never used
[INFO] [stdout]   --> src/zipping.rs:27:15
[INFO] [stdout]    |
[INFO] [stdout] 27 |     pub trait Compress {
[INFO] [stdout]    |               ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `make_dictionary_file` is never read
[INFO] [stdout]   --> src/zipping.rs:13:13
[INFO] [stdout]    |
[INFO] [stdout] 8  |     pub struct ZstdConfig {
[INFO] [stdout]    |                ---------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 13 |         pub make_dictionary_file: bool,
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `new` and `compress` are never used
[INFO] [stdout]   --> src/zipping.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 32 |     impl dyn Compress {
[INFO] [stdout]    |     ----------------- methods in this implementation
[INFO] [stdout] 33 |         fn new(&self) {}
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 34 |         fn compress(&self, config: ZstdConfig) -> SafeResult {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Compress` is never used
[INFO] [stdout]   --> src/zipping.rs:27:15
[INFO] [stdout]    |
[INFO] [stdout] 27 |     pub trait Compress {
[INFO] [stdout]    |               ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `files` is never read
[INFO] [stdout]  --> src/reading.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct FileInfo {
[INFO] [stdout]   |            -------- field in this struct
[INFO] [stdout] 5 |     pub files: Vec<PathBuf>,
[INFO] [stdout]   |         ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `uuid_generator` is never used
[INFO] [stdout]  --> src/uuid.rs:3:15
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub(crate) fn uuid_generator() -> String {
[INFO] [stdout]   |               ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `new` and `compress` are never used
[INFO] [stdout]   --> src/zipping.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 32 |     impl dyn Compress {
[INFO] [stdout]    |     ----------------- methods in this implementation
[INFO] [stdout] 33 |         fn new(&self) {}
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 34 |         fn compress(&self, config: ZstdConfig) -> SafeResult {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `files` is never read
[INFO] [stdout]  --> src/reading.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct FileInfo {
[INFO] [stdout]   |            -------- field in this struct
[INFO] [stdout] 5 |     pub files: Vec<PathBuf>,
[INFO] [stdout]   |         ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `uuid_generator` is never used
[INFO] [stdout]  --> src/uuid.rs:3:15
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub(crate) fn uuid_generator() -> String {
[INFO] [stdout]   |               ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `DirEntry::path` that must be used
[INFO] [stdout]   --> src/reading.rs:18:25
[INFO] [stdout]    |
[INFO] [stdout] 18 |                         dir_file.path();
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 18 |                         let _ = dir_file.path();
[INFO] [stdout]    |                         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `DirEntry::path` that must be used
[INFO] [stdout]   --> src/reading.rs:18:25
[INFO] [stdout]    |
[INFO] [stdout] 18 |                         dir_file.path();
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 18 |                         let _ = dir_file.path();
[INFO] [stdout]    |                         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 17.35s
[INFO] running `Command { std: "docker" "inspect" "1e9482260f3b0b1a2333ec522fd508240a4c4197ceed274a62b2c29dc4a1f101", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e9482260f3b0b1a2333ec522fd508240a4c4197ceed274a62b2c29dc4a1f101", kill_on_drop: false }`
[INFO] [stdout] 1e9482260f3b0b1a2333ec522fd508240a4c4197ceed274a62b2c29dc4a1f101
