[INFO] fetching crate anne 0.1.0...
[INFO] checking anne-0.1.0 against master#3f1be1ec7ec3d8e80beb381ee82164a0aa3ca777 for pr-132289
[INFO] extracting crate anne 0.1.0 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate anne 0.1.0 on toolchain 3f1be1ec7ec3d8e80beb381ee82164a0aa3ca777
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3f1be1ec7ec3d8e80beb381ee82164a0aa3ca777" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate anne 0.1.0
[INFO] finished tweaking crates.io crate anne 0.1.0
[INFO] tweaked toml for crates.io crate anne 0.1.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3f1be1ec7ec3d8e80beb381ee82164a0aa3ca777" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 48 packages to latest compatible versions
[INFO] [stderr]       Adding env_logger v0.4.3 (available: v0.11.5)
[INFO] [stderr]       Adding quick-xml v0.10.1 (available: v0.37.0)
[INFO] [stderr]       Adding wasi v0.10.0+wasi-snapshot-preview1 (available: v0.10.2+wasi-snapshot-preview1)
[INFO] [stderr]       Adding zip v0.2.8 (available: v2.2.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3f1be1ec7ec3d8e80beb381ee82164a0aa3ca777" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bzip2 v0.3.3
[INFO] [stderr]   Downloaded env_logger v0.4.3
[INFO] [stderr]   Downloaded utf8-ranges v1.0.5
[INFO] [stderr]   Downloaded aho-corasick v0.6.10
[INFO] [stderr]   Downloaded thread_local v0.3.6
[INFO] [stderr]   Downloaded quick-xml v0.10.1
[INFO] [stderr]   Downloaded ucd-util v0.1.10
[INFO] [stderr]   Downloaded msdos_time v0.1.6
[INFO] [stderr]   Downloaded podio v0.1.7
[INFO] [stderr]   Downloaded regex v0.2.11
[INFO] [stderr]   Downloaded regex-syntax v0.5.6
[INFO] [stderr]   Downloaded bzip2-sys v0.1.11+1.0.8
[INFO] [stderr]   Downloaded encoding_rs v0.7.2
[INFO] [stderr]   Downloaded zip v0.2.8
[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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+3f1be1ec7ec3d8e80beb381ee82164a0aa3ca777" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] eca31ebf2a07aa3a910ca01e96a61527a9c2525c4603ecfd3ee736e353c25d60
[INFO] running `Command { std: "docker" "start" "-a" "eca31ebf2a07aa3a910ca01e96a61527a9c2525c4603ecfd3ee736e353c25d60", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eca31ebf2a07aa3a910ca01e96a61527a9c2525c4603ecfd3ee736e353c25d60", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eca31ebf2a07aa3a910ca01e96a61527a9c2525c4603ecfd3ee736e353c25d60", kill_on_drop: false }`
[INFO] [stdout] eca31ebf2a07aa3a910ca01e96a61527a9c2525c4603ecfd3ee736e353c25d60
[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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+3f1be1ec7ec3d8e80beb381ee82164a0aa3ca777" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 04ebbde0a34d452e83b0b4bdbe64401f8cba9bdd63bc1e1b33a3798e2d08b900
[INFO] running `Command { std: "docker" "start" "-a" "04ebbde0a34d452e83b0b4bdbe64401f8cba9bdd63bc1e1b33a3798e2d08b900", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]    Compiling pkg-config v0.3.31
[INFO] [stderr]     Checking gimli v0.31.1
[INFO] [stderr]     Checking object v0.36.5
[INFO] [stderr]     Checking rustc-demangle v0.1.24
[INFO] [stderr]     Checking ucd-util v0.1.10
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]     Checking aho-corasick v0.6.10
[INFO] [stderr]     Checking time v0.1.45
[INFO] [stderr]     Checking log v0.4.22
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking utf8-ranges v1.0.5
[INFO] [stderr]     Checking podio v0.1.7
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking flate2 v1.0.34
[INFO] [stderr]     Checking encoding_rs v0.7.2
[INFO] [stderr]     Checking regex-syntax v0.5.6
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking msdos_time v0.1.6
[INFO] [stderr]    Compiling bzip2-sys v0.1.11+1.0.8
[INFO] [stderr]     Checking bzip2 v0.3.3
[INFO] [stderr]     Checking zip v0.2.8
[INFO] [stderr]     Checking addr2line v0.24.2
[INFO] [stderr]     Checking env_logger v0.4.3
[INFO] [stderr]     Checking backtrace v0.3.74
[INFO] [stderr]     Checking error-chain v0.11.0
[INFO] [stderr]     Checking quick-xml v0.10.1
[INFO] [stderr]     Checking anne v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated function `std::env::home_dir`: This function's behavior may be unexpected on Windows. Consider using a crate from crates.io instead.
[INFO] [stdout]   --> src/main.rs:21:31
[INFO] [stdout]    |
[INFO] [stdout] 21 |     if let Some(home_dir) = env::home_dir() {
[INFO] [stdout]    |                                  ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::env::home_dir`: This function's behavior may be unexpected on Windows. Consider using a crate from crates.io instead.
[INFO] [stdout]   --> src/main.rs:21:31
[INFO] [stdout]    |
[INFO] [stdout] 21 |     if let Some(home_dir) = env::home_dir() {
[INFO] [stdout]    |                                  ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/filetypes.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 |     Comic(ComicCompression),
[INFO] [stdout]    |     ----- ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Filetype` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 13 |     Comic(()),
[INFO] [stdout]    |           ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `path`, `ft`, and `meta` are never read
[INFO] [stdout]   --> src/book.rs:9:6
[INFO] [stdout]    |
[INFO] [stdout] 8  | pub struct Book<'a> {
[INFO] [stdout]    |            ---- fields in this struct
[INFO] [stdout] 9  |     pub path: &'a Path,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 10 |     pub ft: Filetype,
[INFO] [stdout]    |         ^^
[INFO] [stdout] 11 |     pub meta: Metadata,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Book` 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/book.rs:19:6
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub struct Metadata {
[INFO] [stdout]    |            -------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 19 |     pub title: String,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 20 |     pub language: String,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 21 |     pub identifier: String,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout] 22 |     pub creator: Option<String>,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] 23 |     pub contributor: Option<String>,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] 24 |     pub publisher: Option<String>,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout] 25 |     pub subject: Option<String>,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] 26 |     pub description: Option<String>,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] 27 |     pub date: Option<String>,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 28 |     pub type_tag: Option<String>,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 29 |     pub format: Option<String>,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 30 |     pub source: Option<String>,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 31 |     pub relation: Option<String>,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 32 |     pub coverage: Option<String>,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 33 |     pub rights: Option<String>,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Metadata` 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: field `0` is never read
[INFO] [stdout]   --> src/book.rs:40:10
[INFO] [stdout]    |
[INFO] [stdout] 40 |     IOError(IOError),
[INFO] [stdout]    |     ------- ^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ReadError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 40 |     IOError(()),
[INFO] [stdout]    |             ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/book.rs:41:11
[INFO] [stdout]    |
[INFO] [stdout] 41 |     ZipError(ZipError),
[INFO] [stdout]    |     -------- ^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ReadError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 41 |     ZipError(()),
[INFO] [stdout]    |              ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/book.rs:42:11
[INFO] [stdout]    |
[INFO] [stdout] 42 |     XmlError(XmlError),
[INFO] [stdout]    |     -------- ^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ReadError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 42 |     XmlError(()),
[INFO] [stdout]    |              ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/filetypes.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 |     Comic(ComicCompression),
[INFO] [stdout]    |     ----- ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Filetype` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 13 |     Comic(()),
[INFO] [stdout]    |           ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `path`, `ft`, and `meta` are never read
[INFO] [stdout]   --> src/book.rs:9:6
[INFO] [stdout]    |
[INFO] [stdout] 8  | pub struct Book<'a> {
[INFO] [stdout]    |            ---- fields in this struct
[INFO] [stdout] 9  |     pub path: &'a Path,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 10 |     pub ft: Filetype,
[INFO] [stdout]    |         ^^
[INFO] [stdout] 11 |     pub meta: Metadata,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Book` 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/book.rs:19:6
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub struct Metadata {
[INFO] [stdout]    |            -------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 19 |     pub title: String,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 20 |     pub language: String,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 21 |     pub identifier: String,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout] 22 |     pub creator: Option<String>,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] 23 |     pub contributor: Option<String>,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] 24 |     pub publisher: Option<String>,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout] 25 |     pub subject: Option<String>,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] 26 |     pub description: Option<String>,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] 27 |     pub date: Option<String>,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 28 |     pub type_tag: Option<String>,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 29 |     pub format: Option<String>,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 30 |     pub source: Option<String>,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 31 |     pub relation: Option<String>,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 32 |     pub coverage: Option<String>,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 33 |     pub rights: Option<String>,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Metadata` 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: field `0` is never read
[INFO] [stdout]   --> src/book.rs:40:10
[INFO] [stdout]    |
[INFO] [stdout] 40 |     IOError(IOError),
[INFO] [stdout]    |     ------- ^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ReadError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 40 |     IOError(()),
[INFO] [stdout]    |             ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/book.rs:41:11
[INFO] [stdout]    |
[INFO] [stdout] 41 |     ZipError(ZipError),
[INFO] [stdout]    |     -------- ^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ReadError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 41 |     ZipError(()),
[INFO] [stdout]    |              ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/book.rs:42:11
[INFO] [stdout]    |
[INFO] [stdout] 42 |     XmlError(XmlError),
[INFO] [stdout]    |     -------- ^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ReadError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 42 |     XmlError(()),
[INFO] [stdout]    |              ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.88s
[INFO] running `Command { std: "docker" "inspect" "04ebbde0a34d452e83b0b4bdbe64401f8cba9bdd63bc1e1b33a3798e2d08b900", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04ebbde0a34d452e83b0b4bdbe64401f8cba9bdd63bc1e1b33a3798e2d08b900", kill_on_drop: false }`
[INFO] [stdout] 04ebbde0a34d452e83b0b4bdbe64401f8cba9bdd63bc1e1b33a3798e2d08b900
