[INFO] fetching crate piz 0.5.1...
[INFO] testing piz-0.5.1 against try#db823df02fd0c2cf67b43025ac3fef3f2d743245 for pr-150681
[INFO] extracting crate piz 0.5.1 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate piz 0.5.1
[INFO] finished tweaking crates.io crate piz 0.5.1
[INFO] tweaked toml for crates.io crate piz 0.5.1 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate piz 0.5.1 on toolchain db823df02fd0c2cf67b43025ac3fef3f2d743245
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate piz 0.5.1 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" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "inspect" "dfecef8fa80d0f94762e347410c9e0b0b6f421a2838fd76fdaadb0fd83d593ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dfecef8fa80d0f94762e347410c9e0b0b6f421a2838fd76fdaadb0fd83d593ab", kill_on_drop: false }`
[INFO] [stdout] dfecef8fa80d0f94762e347410c9e0b0b6f421a2838fd76fdaadb0fd83d593ab
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] eea82006d784427b3749904618e2e10b8fe75971f0506886c7e15b4d5bee05b8
[INFO] running `Command { std: "docker" "start" "-a" "eea82006d784427b3749904618e2e10b8fe75971f0506886c7e15b4d5bee05b8", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling serde v1.0.144
[INFO] [stderr]    Compiling proc-macro2 v1.0.43
[INFO] [stderr]    Compiling unicode-ident v1.0.3
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling regex-automata v0.1.10
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[INFO] [stderr]    Compiling syn v1.0.99
[INFO] [stderr]    Compiling libc v0.2.132
[INFO] [stderr]    Compiling ryu v1.0.11
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling camino v1.1.1
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling miniz_oxide v0.5.4
[INFO] [stderr]    Compiling iana-time-zone v0.1.47
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[INFO] [stderr]    Compiling chrono v0.4.22
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[INFO] [stderr]    Compiling csv v1.1.6
[INFO] [stderr]    Compiling codepage-437 v0.1.0
[INFO] [stderr]    Compiling piz v0.5.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `file_comment` is never read
[INFO] [stdout]    --> src/spec.rs:130:9
[INFO] [stdout]     |
[INFO] [stdout] 123 | pub struct EndOfCentralDirectory<'a> {
[INFO] [stdout]     |            --------------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 130 |     pub file_comment: &'a [u8],
[INFO] [stdout]     |         ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `EndOfCentralDirectory` 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: multiple fields are never read
[INFO] [stdout]    --> src/spec.rs:236:9
[INFO] [stdout]     |
[INFO] [stdout] 235 | pub struct Zip64EndOfCentralDirectory<'a> {
[INFO] [stdout]     |            -------------------------- fields in this struct
[INFO] [stdout] 236 |     pub source_version: u16,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^
[INFO] [stdout] 237 |     pub minimum_extract_version: u16,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 238 |     pub disk_number: u32,
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout] 239 |     pub disk_with_central_directory: u32,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 240 |     pub entries_on_this_disk: u64,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 241 |     pub entries: u64,
[INFO] [stdout] 242 |     pub central_directory_size: u64,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 243 |     pub central_directory_offset: u64,
[INFO] [stdout] 244 |     pub extensible_data: &'a [u8],
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Zip64EndOfCentralDirectory` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `minimum_extract_version`, `internal_file_attributes`, and `file_comment` are never read
[INFO] [stdout]    --> src/spec.rs:343:9
[INFO] [stdout]     |
[INFO] [stdout] 341 | pub struct CentralDirectoryEntry<'a> {
[INFO] [stdout]     |            --------------------- fields in this struct
[INFO] [stdout] 342 |     pub source_version: u16,
[INFO] [stdout] 343 |     pub minimum_extract_version: u16,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 352 |     pub internal_file_attributes: u16,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 357 |     pub file_comment: &'a [u8],
[INFO] [stdout]     |         ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `CentralDirectoryEntry` 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 `minimum_extract_version` is never read
[INFO] [stdout]    --> src/spec.rs:630:9
[INFO] [stdout]     |
[INFO] [stdout] 629 | pub struct LocalFileHeader<'a> {
[INFO] [stdout]     |            --------------- field in this struct
[INFO] [stdout] 630 |     pub minimum_extract_version: u16,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `LocalFileHeader` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/read.rs:261:20
[INFO] [stdout]     |
[INFO] [stdout] 261 |     pub fn entries(&self) -> &[FileMetadata] {
[INFO] [stdout]     |                    ^^^^^     ^^^^^^^^^^^^^^^
[INFO] [stdout]     |                    |         | |
[INFO] [stdout]     |                    |         | the same lifetime is hidden here
[INFO] [stdout]     |                    |         the same lifetime is elided here
[INFO] [stdout]     |                    the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 261 |     pub fn entries(&self) -> &[FileMetadata<'_>] {
[INFO] [stdout]     |                                            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 19.93s
[INFO] running `Command { std: "docker" "inspect" "eea82006d784427b3749904618e2e10b8fe75971f0506886c7e15b4d5bee05b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eea82006d784427b3749904618e2e10b8fe75971f0506886c7e15b4d5bee05b8", kill_on_drop: false }`
[INFO] [stdout] eea82006d784427b3749904618e2e10b8fe75971f0506886c7e15b4d5bee05b8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bd295be3da400aff24333a8fe063f031065a4be7e785abb41c956e5868d01159
[INFO] running `Command { std: "docker" "start" "-a" "bd295be3da400aff24333a8fe063f031065a4be7e785abb41c956e5868d01159", kill_on_drop: false }`
[INFO] [stderr]    Compiling once_cell v1.14.0
[INFO] [stderr]    Compiling syn v1.0.99
[INFO] [stderr]    Compiling crossbeam-utils v0.8.11
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[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
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[INFO] [stderr]    Compiling thread_local v1.1.4
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[INFO] [stderr]    Compiling env_logger v0.8.4
[INFO] [stderr]    Compiling thiserror-impl v1.0.34
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]    Compiling thiserror v1.0.34
[INFO] [stderr]    Compiling piz v0.5.1 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling structopt v0.3.26
[INFO] [stdout] warning: field `file_comment` is never read
[INFO] [stdout]    --> src/spec.rs:130:9
[INFO] [stdout]     |
[INFO] [stdout] 123 | pub struct EndOfCentralDirectory<'a> {
[INFO] [stdout]     |            --------------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 130 |     pub file_comment: &'a [u8],
[INFO] [stdout]     |         ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `EndOfCentralDirectory` 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: multiple fields are never read
[INFO] [stdout]    --> src/spec.rs:236:9
[INFO] [stdout]     |
[INFO] [stdout] 235 | pub struct Zip64EndOfCentralDirectory<'a> {
[INFO] [stdout]     |            -------------------------- fields in this struct
[INFO] [stdout] 236 |     pub source_version: u16,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^
[INFO] [stdout] 237 |     pub minimum_extract_version: u16,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 238 |     pub disk_number: u32,
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout] 239 |     pub disk_with_central_directory: u32,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 240 |     pub entries_on_this_disk: u64,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 241 |     pub entries: u64,
[INFO] [stdout] 242 |     pub central_directory_size: u64,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 243 |     pub central_directory_offset: u64,
[INFO] [stdout] 244 |     pub extensible_data: &'a [u8],
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Zip64EndOfCentralDirectory` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `minimum_extract_version`, `internal_file_attributes`, and `file_comment` are never read
[INFO] [stdout]    --> src/spec.rs:343:9
[INFO] [stdout]     |
[INFO] [stdout] 341 | pub struct CentralDirectoryEntry<'a> {
[INFO] [stdout]     |            --------------------- fields in this struct
[INFO] [stdout] 342 |     pub source_version: u16,
[INFO] [stdout] 343 |     pub minimum_extract_version: u16,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 352 |     pub internal_file_attributes: u16,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 357 |     pub file_comment: &'a [u8],
[INFO] [stdout]     |         ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `CentralDirectoryEntry` 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 `minimum_extract_version` is never read
[INFO] [stdout]    --> src/spec.rs:630:9
[INFO] [stdout]     |
[INFO] [stdout] 629 | pub struct LocalFileHeader<'a> {
[INFO] [stdout]     |            --------------- field in this struct
[INFO] [stdout] 630 |     pub minimum_extract_version: u16,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `LocalFileHeader` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/read.rs:261:20
[INFO] [stdout]     |
[INFO] [stdout] 261 |     pub fn entries(&self) -> &[FileMetadata] {
[INFO] [stdout]     |                    ^^^^^     ^^^^^^^^^^^^^^^
[INFO] [stdout]     |                    |         | |
[INFO] [stdout]     |                    |         | the same lifetime is hidden here
[INFO] [stdout]     |                    |         the same lifetime is elided here
[INFO] [stdout]     |                    the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 261 |     pub fn entries(&self) -> &[FileMetadata<'_>] {
[INFO] [stdout]     |                                            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `file_comment` is never read
[INFO] [stdout]    --> src/spec.rs:130:9
[INFO] [stdout]     |
[INFO] [stdout] 123 | pub struct EndOfCentralDirectory<'a> {
[INFO] [stdout]     |            --------------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 130 |     pub file_comment: &'a [u8],
[INFO] [stdout]     |         ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `EndOfCentralDirectory` 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: multiple fields are never read
[INFO] [stdout]    --> src/spec.rs:236:9
[INFO] [stdout]     |
[INFO] [stdout] 235 | pub struct Zip64EndOfCentralDirectory<'a> {
[INFO] [stdout]     |            -------------------------- fields in this struct
[INFO] [stdout] 236 |     pub source_version: u16,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^
[INFO] [stdout] 237 |     pub minimum_extract_version: u16,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 238 |     pub disk_number: u32,
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout] 239 |     pub disk_with_central_directory: u32,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 240 |     pub entries_on_this_disk: u64,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 241 |     pub entries: u64,
[INFO] [stdout] 242 |     pub central_directory_size: u64,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 243 |     pub central_directory_offset: u64,
[INFO] [stdout] 244 |     pub extensible_data: &'a [u8],
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Zip64EndOfCentralDirectory` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `minimum_extract_version`, `internal_file_attributes`, and `file_comment` are never read
[INFO] [stdout]    --> src/spec.rs:343:9
[INFO] [stdout]     |
[INFO] [stdout] 341 | pub struct CentralDirectoryEntry<'a> {
[INFO] [stdout]     |            --------------------- fields in this struct
[INFO] [stdout] 342 |     pub source_version: u16,
[INFO] [stdout] 343 |     pub minimum_extract_version: u16,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 352 |     pub internal_file_attributes: u16,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 357 |     pub file_comment: &'a [u8],
[INFO] [stdout]     |         ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `CentralDirectoryEntry` 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 `minimum_extract_version` is never read
[INFO] [stdout]    --> src/spec.rs:630:9
[INFO] [stdout]     |
[INFO] [stdout] 629 | pub struct LocalFileHeader<'a> {
[INFO] [stdout]     |            --------------- field in this struct
[INFO] [stdout] 630 |     pub minimum_extract_version: u16,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `LocalFileHeader` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/read.rs:261:20
[INFO] [stdout]     |
[INFO] [stdout] 261 |     pub fn entries(&self) -> &[FileMetadata] {
[INFO] [stdout]     |                    ^^^^^     ^^^^^^^^^^^^^^^
[INFO] [stdout]     |                    |         | |
[INFO] [stdout]     |                    |         | the same lifetime is hidden here
[INFO] [stdout]     |                    |         the same lifetime is elided here
[INFO] [stdout]     |                    the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 261 |     pub fn entries(&self) -> &[FileMetadata<'_>] {
[INFO] [stdout]     |                                            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 31.08s
[INFO] running `Command { std: "docker" "inspect" "bd295be3da400aff24333a8fe063f031065a4be7e785abb41c956e5868d01159", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd295be3da400aff24333a8fe063f031065a4be7e785abb41c956e5868d01159", kill_on_drop: false }`
[INFO] [stdout] bd295be3da400aff24333a8fe063f031065a4be7e785abb41c956e5868d01159
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] fc948b3e5e633639f94dcd7329591560ff7d5b12593506899d7f6b46bcb32c61
[INFO] running `Command { std: "docker" "start" "-a" "fc948b3e5e633639f94dcd7329591560ff7d5b12593506899d7f6b46bcb32c61", kill_on_drop: false }`
[INFO] [stderr] warning: field `file_comment` is never read
[INFO] [stderr]    --> src/spec.rs:130:9
[INFO] [stderr]     |
[INFO] [stderr] 123 | pub struct EndOfCentralDirectory<'a> {
[INFO] [stderr]     |            --------------------- field in this struct
[INFO] [stderr] ...
[INFO] [stderr] 130 |     pub file_comment: &'a [u8],
[INFO] [stderr]     |         ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `EndOfCentralDirectory` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: multiple fields are never read
[INFO] [stderr]    --> src/spec.rs:236:9
[INFO] [stderr]     |
[INFO] [stderr] 235 | pub struct Zip64EndOfCentralDirectory<'a> {
[INFO] [stderr]     |            -------------------------- fields in this struct
[INFO] [stderr] 236 |     pub source_version: u16,
[INFO] [stderr]     |         ^^^^^^^^^^^^^^
[INFO] [stderr] 237 |     pub minimum_extract_version: u16,
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 238 |     pub disk_number: u32,
[INFO] [stderr]     |         ^^^^^^^^^^^
[INFO] [stderr] 239 |     pub disk_with_central_directory: u32,
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 240 |     pub entries_on_this_disk: u64,
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 241 |     pub entries: u64,
[INFO] [stderr] 242 |     pub central_directory_size: u64,
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 243 |     pub central_directory_offset: u64,
[INFO] [stderr] 244 |     pub extensible_data: &'a [u8],
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `Zip64EndOfCentralDirectory` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: fields `minimum_extract_version`, `internal_file_attributes`, and `file_comment` are never read
[INFO] [stderr]    --> src/spec.rs:343:9
[INFO] [stderr]     |
[INFO] [stderr] 341 | pub struct CentralDirectoryEntry<'a> {
[INFO] [stderr]     |            --------------------- fields in this struct
[INFO] [stderr] 342 |     pub source_version: u16,
[INFO] [stderr] 343 |     pub minimum_extract_version: u16,
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 352 |     pub internal_file_attributes: u16,
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 357 |     pub file_comment: &'a [u8],
[INFO] [stderr]     |         ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `CentralDirectoryEntry` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: field `minimum_extract_version` is never read
[INFO] [stderr]    --> src/spec.rs:630:9
[INFO] [stderr]     |
[INFO] [stderr] 629 | pub struct LocalFileHeader<'a> {
[INFO] [stderr]     |            --------------- field in this struct
[INFO] [stderr] 630 |     pub minimum_extract_version: u16,
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `LocalFileHeader` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/read.rs:261:20
[INFO] [stderr]     |
[INFO] [stderr] 261 |     pub fn entries(&self) -> &[FileMetadata] {
[INFO] [stderr]     |                    ^^^^^     ^^^^^^^^^^^^^^^
[INFO] [stderr]     |                    |         | |
[INFO] [stderr]     |                    |         | the same lifetime is hidden here
[INFO] [stderr]     |                    |         the same lifetime is elided here
[INFO] [stderr]     |                    the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 261 |     pub fn entries(&self) -> &[FileMetadata<'_>] {
[INFO] [stderr]     |                                            ++++
[INFO] [stderr] 
[INFO] [stderr] warning: `piz` (lib) generated 5 warnings (run `cargo fix --lib -p piz` to apply 1 suggestion)
[INFO] [stderr] warning: `piz` (lib test) generated 5 warnings (5 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.16s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/piz-330d2513ab19b341)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test crc_reader::test::test_zero_read ... ok
[INFO] [stdout] test crc_reader::test::test_byte_by_byte ... ok
[INFO] [stdout] test crc_reader::test::test_empty_reader ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/smoke.rs (/opt/rustwide/target/debug/deps/smoke-0f2a3c0b1a333a40)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] Setting up test environment...
[INFO] [stdout] zip I/O error: Read-only file system
[INFO] [stdout] zip error: Could not create output file (hello.zip)
[INFO] [stdout] test smoke ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- smoke stdout ----
[INFO] [stdout] Error: Couldn't open zip file
[INFO] [stdout] 
[INFO] [stdout] Caused by:
[INFO] [stdout]     No such file or directory (os error 2)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     smoke
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--test smoke`
[INFO] running `Command { std: "docker" "inspect" "fc948b3e5e633639f94dcd7329591560ff7d5b12593506899d7f6b46bcb32c61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc948b3e5e633639f94dcd7329591560ff7d5b12593506899d7f6b46bcb32c61", kill_on_drop: false }`
[INFO] [stdout] fc948b3e5e633639f94dcd7329591560ff7d5b12593506899d7f6b46bcb32c61
