[INFO] cloning repository https://github.com/wfehrnstrom/rustgzip
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wfehrnstrom/rustgzip" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwfehrnstrom%2Frustgzip", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwfehrnstrom%2Frustgzip'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 85058c0197562620747561b72c459ebee21ba423
[INFO] checking wfehrnstrom/rustgzip against master#642c19bfc3a5c1de985bf5d0cc8207ac9d22708a for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwfehrnstrom%2Frustgzip" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/wfehrnstrom/rustgzip
[INFO] finished tweaking git repo https://github.com/wfehrnstrom/rustgzip
[INFO] tweaked toml for git repo https://github.com/wfehrnstrom/rustgzip written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/wfehrnstrom/rustgzip on toolchain 642c19bfc3a5c1de985bf5d0cc8207ac9d22708a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/wfehrnstrom/rustgzip 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" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 58 packages to latest compatible versions
[INFO] [stderr]       Adding aho-corasick v1.1.4
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 94b83d73ebb527b820c63f6777ebecd04d2b21fc5a40d4f29e7f2e291ee3f274
[INFO] running `Command { std: "docker" "start" "-a" "94b83d73ebb527b820c63f6777ebecd04d2b21fc5a40d4f29e7f2e291ee3f274", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "94b83d73ebb527b820c63f6777ebecd04d2b21fc5a40d4f29e7f2e291ee3f274", kill_on_drop: false }`
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[INFO] [stdout] 94b83d73ebb527b820c63f6777ebecd04d2b21fc5a40d4f29e7f2e291ee3f274
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c40215f7c3495c6ff006e694307db46e0c41458edf088855af507dc35060dbe6
[INFO] running `Command { std: "docker" "start" "-a" "c40215f7c3495c6ff006e694307db46e0c41458edf088855af507dc35060dbe6", kill_on_drop: false }`
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[INFO] [stderr]    Compiling pkg-config v0.3.14
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
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[INFO] [stderr]    Compiling syn v0.15.39
[INFO] [stderr]    Compiling syn v2.0.110
[INFO] [stderr]    Compiling num-bigint v0.2.2
[INFO] [stderr]    Compiling bitflags v1.1.0
[INFO] [stderr]     Checking adler32 v1.0.3
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[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling num-rational v0.2.2
[INFO] [stderr]    Compiling num-complex v0.2.3
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]     Checking aho-corasick v1.1.4
[INFO] [stderr]     Checking regex-syntax v0.8.8
[INFO] [stderr]    Compiling unicode-segmentation v1.3.0
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]    Compiling bzip2-sys v0.1.13+1.0.8
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking textwrap v0.11.0
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[INFO] [stderr]    Compiling escargot v0.3.1
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking predicates-core v1.0.9
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking flate2 v1.0.9
[INFO] [stderr]     Checking bzip2 v0.4.4
[INFO] [stderr]     Checking float-cmp v0.8.0
[INFO] [stderr]     Checking time v0.1.45
[INFO] [stderr]     Checking difference v2.0.0
[INFO] [stderr]     Checking termtree v0.5.1
[INFO] [stderr]     Checking normalize-line-endings v0.3.0
[INFO] [stderr]     Checking chrono v0.4.42
[INFO] [stderr]     Checking predicates-tree v1.0.12
[INFO] [stderr]     Checking utime v0.2.1
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking num v0.2.0
[INFO] [stderr]     Checking regex-automata v0.4.13
[INFO] [stderr]    Compiling structopt-derive v0.2.18
[INFO] [stderr]     Checking structopt v0.2.18
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]     Checking regex v1.12.2
[INFO] [stderr]     Checking thiserror v1.0.69
[INFO] [stderr]     Checking zip v0.5.13
[INFO] [stderr]     Checking predicates v1.0.8
[INFO] [stderr]     Checking rstzip v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unexpected `cfg` condition name: `linux`
[INFO] [stdout]   --> src/util.rs:10:7
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[cfg(linux)]
[INFO] [stdout]    |       ^^^^^ help: found config with similar value: `target_os = "linux"`
[INFO] [stdout]    |
[INFO] [stdout]    = help: expected names are: `docsrs`, `feature`, and `test` and 31 more
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(linux)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(linux)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `linux`
[INFO] [stdout]    --> src/util.rs:144:49
[INFO] [stdout]     |
[INFO] [stdout] 144 |         let file_checks = (!cfg!(unix) && !cfg!(linux)) || file_checks(f, opt)?;
[INFO] [stdout]     |                                                 ^^^^^ help: found config with similar value: `target_os = "linux"`
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(linux)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(linux)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/util.rs:310:28
[INFO] [stdout]     |
[INFO] [stdout] 310 |                 Some(c) => (c == 'y' || c == 'Y'),
[INFO] [stdout]     |                            ^                    ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 310 -                 Some(c) => (c == 'y' || c == 'Y'),
[INFO] [stdout] 310 +                 Some(c) => c == 'y' || c == 'Y' ,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `chrono::TimeZone::timestamp`: use `timestamp_opt()` instead
[INFO] [stdout]    --> src/formats/gz.rs:218:15
[INFO] [stdout]     |
[INFO] [stdout] 218 |         Local.timestamp (self.mtime.into(), 0)
[INFO] [stdout]     |               ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `chrono::TimeZone::timestamp`: use `timestamp_opt()` instead
[INFO] [stdout]   --> src/formats/zip.rs:30:15
[INFO] [stdout]    |
[INFO] [stdout] 30 |         Local.timestamp (self.get_header().mtime.into(), 0)
[INFO] [stdout]    |               ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `synchronous`, `rsyncable`, and `parallel` are never read
[INFO] [stdout]   --> src/main.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub struct Opt {
[INFO] [stdout]    |            --- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 42 |     synchronous: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 58 |     rsyncable: bool,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 59 |     #[structopt(short="j", long, help="compress in parallel with THREADS number of threads", default_value="1")]
[INFO] [stdout] 60 |     parallel: u8,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Opt` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `1` is never read
[INFO] [stdout]   --> src/util.rs:67:31
[INFO] [stdout]    |
[INFO] [stdout] 67 | pub struct Timespec (pub i64, pub i32);
[INFO] [stdout]    |            --------           ^^^^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout]    = note: `Timespec` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple fields are never read
[INFO] [stdout]   --> src/formats/gz.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub struct GzFile {
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] 18 |     pub path: Option<PathBuf>,
[INFO] [stdout] 19 |     compression_method: u8,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 22 |     flag: GzFlags,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 23 |     comment: Option<String>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 24 |     os: u8,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 25 |     data: Vec<u8>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 28 |     hcrc16: Option<u16>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 29 |     xfield: Option<(u16, Vec<u8>)>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `GzFile` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `ftext` is never read
[INFO] [stdout]   --> src/formats/gz.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 34 | struct GzFlags {
[INFO] [stdout]    |        ------- field in this struct
[INFO] [stdout] 35 |     pub ftext: bool,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `GzFlags` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `compress_into` is never used
[INFO] [stdout]   --> src/formats/zip.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout]  7 | pub trait Zip {
[INFO] [stdout]    |           --- associated function in this trait
[INFO] [stdout] ...
[INFO] [stdout] 10 |     fn compress_into <R: Read> (input: R, wdata: Option<WorkData>, opt: &Opt) -> Result<Box<Self>, std::io::Error>;
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `StreamHeader` is never constructed
[INFO] [stdout]   --> src/formats/zip.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub struct StreamHeader {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Header` is never used
[INFO] [stdout]   --> src/formats/zip.rs:26:11
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub trait Header {
[INFO] [stdout]    |           ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]   --> src/util.rs:39:55
[INFO] [stdout]    |
[INFO] [stdout] 39 |         WrappedFile { path: self.path, file: self.file.clone()}
[INFO] [stdout]    |                                                       ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `File` does not implement `Clone`, so calling `clone` on `&File` copies the reference, which does not do anything and can be removed
[INFO] [stdout]    = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]    |
[INFO] [stdout] 39 -         WrappedFile { path: self.path, file: self.file.clone()}
[INFO] [stdout] 39 +         WrappedFile { path: self.path, file: self.file}
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking serde v1.0.228
[INFO] [stderr]     Checking assert_cmd v0.10.2
[INFO] [stdout] warning: unexpected `cfg` condition name: `linux`
[INFO] [stdout]   --> src/util.rs:10:7
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[cfg(linux)]
[INFO] [stdout]    |       ^^^^^ help: found config with similar value: `target_os = "linux"`
[INFO] [stdout]    |
[INFO] [stdout]    = help: expected names are: `docsrs`, `feature`, and `test` and 31 more
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(linux)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(linux)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `linux`
[INFO] [stdout]    --> src/util.rs:144:49
[INFO] [stdout]     |
[INFO] [stdout] 144 |         let file_checks = (!cfg!(unix) && !cfg!(linux)) || file_checks(f, opt)?;
[INFO] [stdout]     |                                                 ^^^^^ help: found config with similar value: `target_os = "linux"`
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead
[INFO] [stdout]     = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]              [lints.rust]
[INFO] [stdout]              unexpected_cfgs = { level = "warn", check-cfg = ['cfg(linux)'] }
[INFO] [stdout]     = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(linux)");` to the top of the `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around match arm expression
[INFO] [stdout]    --> src/util.rs:310:28
[INFO] [stdout]     |
[INFO] [stdout] 310 |                 Some(c) => (c == 'y' || c == 'Y'),
[INFO] [stdout]     |                            ^                    ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 310 -                 Some(c) => (c == 'y' || c == 'Y'),
[INFO] [stdout] 310 +                 Some(c) => c == 'y' || c == 'Y' ,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `chrono::TimeZone::timestamp`: use `timestamp_opt()` instead
[INFO] [stdout]    --> src/formats/gz.rs:218:15
[INFO] [stdout]     |
[INFO] [stdout] 218 |         Local.timestamp (self.mtime.into(), 0)
[INFO] [stdout]     |               ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `chrono::TimeZone::timestamp`: use `timestamp_opt()` instead
[INFO] [stdout]   --> src/formats/zip.rs:30:15
[INFO] [stdout]    |
[INFO] [stdout] 30 |         Local.timestamp (self.get_header().mtime.into(), 0)
[INFO] [stdout]    |               ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `synchronous`, `rsyncable`, and `parallel` are never read
[INFO] [stdout]   --> src/main.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub struct Opt {
[INFO] [stdout]    |            --- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 42 |     synchronous: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 58 |     rsyncable: bool,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 59 |     #[structopt(short="j", long, help="compress in parallel with THREADS number of threads", default_value="1")]
[INFO] [stdout] 60 |     parallel: u8,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Opt` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `1` is never read
[INFO] [stdout]   --> src/util.rs:67:31
[INFO] [stdout]    |
[INFO] [stdout] 67 | pub struct Timespec (pub i64, pub i32);
[INFO] [stdout]    |            --------           ^^^^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout]    = note: `Timespec` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple fields are never read
[INFO] [stdout]   --> src/formats/gz.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub struct GzFile {
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] 18 |     pub path: Option<PathBuf>,
[INFO] [stdout] 19 |     compression_method: u8,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 22 |     flag: GzFlags,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 23 |     comment: Option<String>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 24 |     os: u8,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 25 |     data: Vec<u8>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 28 |     hcrc16: Option<u16>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 29 |     xfield: Option<(u16, Vec<u8>)>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `GzFile` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `ftext` is never read
[INFO] [stdout]   --> src/formats/gz.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 34 | struct GzFlags {
[INFO] [stdout]    |        ------- field in this struct
[INFO] [stdout] 35 |     pub ftext: bool,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `GzFlags` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `compress_into` is never used
[INFO] [stdout]   --> src/formats/zip.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout]  7 | pub trait Zip {
[INFO] [stdout]    |           --- associated function in this trait
[INFO] [stdout] ...
[INFO] [stdout] 10 |     fn compress_into <R: Read> (input: R, wdata: Option<WorkData>, opt: &Opt) -> Result<Box<Self>, std::io::Error>;
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `StreamHeader` is never constructed
[INFO] [stdout]   --> src/formats/zip.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub struct StreamHeader {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Header` is never used
[INFO] [stdout]   --> src/formats/zip.rs:26:11
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub trait Header {
[INFO] [stdout]    |           ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]   --> src/util.rs:39:55
[INFO] [stdout]    |
[INFO] [stdout] 39 |         WrappedFile { path: self.path, file: self.file.clone()}
[INFO] [stdout]    |                                                       ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `File` does not implement `Clone`, so calling `clone` on `&File` copies the reference, which does not do anything and can be removed
[INFO] [stdout]    = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]    |
[INFO] [stdout] 39 -         WrappedFile { path: self.path, file: self.file.clone()}
[INFO] [stdout] 39 +         WrappedFile { path: self.path, file: self.file}
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 32.92s
[INFO] running `Command { std: "docker" "inspect" "c40215f7c3495c6ff006e694307db46e0c41458edf088855af507dc35060dbe6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c40215f7c3495c6ff006e694307db46e0c41458edf088855af507dc35060dbe6", kill_on_drop: false }`
[INFO] [stdout] c40215f7c3495c6ff006e694307db46e0c41458edf088855af507dc35060dbe6
