[INFO] fetching crate mimesniff 0.3.0...
[INFO] testing mimesniff-0.3.0 against master#733b47ea4b1b86216f14ef56e49440c33933f230+rustflags=-Copt-level=3 for pr-138759
[INFO] extracting crate mimesniff 0.3.0 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate mimesniff 0.3.0
[INFO] finished tweaking crates.io crate mimesniff 0.3.0
[INFO] tweaked toml for crates.io crate mimesniff 0.3.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mimesniff 0.3.0 on toolchain 733b47ea4b1b86216f14ef56e49440c33933f230
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 1 package to latest compatible version
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 908e1c5a9c31df1b5d52b7f66153789e371c1c836e46bfb7497b52dab6687c52
[INFO] running `Command { std: "docker" "start" "-a" "908e1c5a9c31df1b5d52b7f66153789e371c1c836e46bfb7497b52dab6687c52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "908e1c5a9c31df1b5d52b7f66153789e371c1c836e46bfb7497b52dab6687c52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "908e1c5a9c31df1b5d52b7f66153789e371c1c836e46bfb7497b52dab6687c52", kill_on_drop: false }`
[INFO] [stdout] 908e1c5a9c31df1b5d52b7f66153789e371c1c836e46bfb7497b52dab6687c52
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] af81ff79dd9b558f4b2405550328587298971201bd96b30d88841f6de3c847b1
[INFO] running `Command { std: "docker" "start" "-a" "af81ff79dd9b558f4b2405550328587298971201bd96b30d88841f6de3c847b1", kill_on_drop: false }`
[INFO] [stderr]    Compiling mime v0.3.17
[INFO] [stderr]    Compiling mimesniff v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `is_unknown_mime_type` and `sniff_mime_type`
[INFO] [stdout]  --> src/mimesniffer/api.rs:4:20
[INFO] [stdout]   |
[INFO] [stdout] 4 | use super::magic::{is_unknown_mime_type, sniff_mime_type, sniff_mime_type_from_local_data};
[INFO] [stdout]   |                    ^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `MimeTypeSniffable` and `MimeTypeSniffer`
[INFO] [stdout]    --> src/mimesniffer/mod.rs:143:15
[INFO] [stdout]     |
[INFO] [stdout] 143 | pub use api::{MimeTypeSniffable, MimeTypeSniffer, MimeTypeSnifferExt};
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated trait `std::ascii::AsciiExt`: use inherent methods instead
[INFO] [stdout]  --> src/mimesniffer/magic.rs:1:17
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ascii::AsciiExt;
[INFO] [stdout]   |                 ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ascii::AsciiExt`
[INFO] [stdout]  --> src/mimesniffer/magic.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ascii::AsciiExt;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `String` is never constructed
[INFO] [stdout]  --> src/mimesniffer/magic.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub enum Magic {
[INFO] [stdout]   |          ----- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 6 |     String(&'static str, &'static str),
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `BYTES_REQUIRED_FOR_MAGIC` is never used
[INFO] [stdout]    --> src/mimesniffer/magic.rs:105:7
[INFO] [stdout]     |
[INFO] [stdout] 105 | const BYTES_REQUIRED_FOR_MAGIC: usize = 42;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MAX_BYTES_TO_SNIFF_HTML` is never used
[INFO] [stdout]    --> src/mimesniffer/magic.rs:107:7
[INFO] [stdout]     |
[INFO] [stdout] 107 | const MAX_BYTES_TO_SNIFF_HTML: usize = 512;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MAX_BYTES_TO_SNIFF_BIN` is never used
[INFO] [stdout]    --> src/mimesniffer/magic.rs:108:7
[INFO] [stdout]     |
[INFO] [stdout] 108 | const MAX_BYTES_TO_SNIFF_BIN: usize = 512;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MAX_BYTES_TO_SNIFF_XML` is never used
[INFO] [stdout]    --> src/mimesniffer/magic.rs:109:7
[INFO] [stdout]     |
[INFO] [stdout] 109 | const MAX_BYTES_TO_SNIFF_XML: usize = 300;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sniff_mime_type` is never used
[INFO] [stdout]    --> src/mimesniffer/magic.rs:142:8
[INFO] [stdout]     |
[INFO] [stdout] 142 | pub fn sniff_mime_type<'a>(buf: &'a [u8], url: &'a str, type_hint: &'a str) -> Option<&'a str> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `UNKNOWN_MIME_TYPES` is never used
[INFO] [stdout]    --> src/mimesniffer/magic.rs:263:7
[INFO] [stdout]     |
[INFO] [stdout] 263 | const UNKNOWN_MIME_TYPES: &'static [&'static str] =
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_unknown_mime_type` is never used
[INFO] [stdout]    --> src/mimesniffer/magic.rs:266:8
[INFO] [stdout]     |
[INFO] [stdout] 266 | pub fn is_unknown_mime_type(type_hint: &str) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `truncate_size` is never used
[INFO] [stdout]    --> src/mimesniffer/magic.rs:274:8
[INFO] [stdout]     |
[INFO] [stdout] 274 | pub fn truncate_size(content: &[u8], max_size: usize) -> (&[u8], bool) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SNIFFABLE_TAGS` is never used
[INFO] [stdout]    --> src/mimesniffer/magic.rs:290:7
[INFO] [stdout]     |
[INFO] [stdout] 290 | const SNIFFABLE_TAGS: &'static [Magic] = &[
[INFO] [stdout]     |       ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sniff_for_html` is never used
[INFO] [stdout]    --> src/mimesniffer/magic.rs:319:8
[INFO] [stdout]     |
[INFO] [stdout] 319 | pub fn sniff_for_html(content: &[u8]) -> (Option<&str>, bool) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `BYTE_ORDER_MARKS` is never used
[INFO] [stdout]    --> src/mimesniffer/magic.rs:342:7
[INFO] [stdout]     |
[INFO] [stdout] 342 | const BYTE_ORDER_MARKS: &'static [Magic] = &[
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `BYTE_LOOKS_BINARY` is never used
[INFO] [stdout]    --> src/mimesniffer/magic.rs:354:7
[INFO] [stdout]     |
[INFO] [stdout] 354 | const BYTE_LOOKS_BINARY: &'static [u8] = &[
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sniff_binary` is never used
[INFO] [stdout]    --> src/mimesniffer/magic.rs:376:8
[INFO] [stdout]     |
[INFO] [stdout] 376 | pub fn sniff_binary(content: &[u8]) -> (Option<&str>, bool) {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `XML_TAG` is never used
[INFO] [stdout]    --> src/mimesniffer/magic.rs:404:7
[INFO] [stdout]     |
[INFO] [stdout] 404 | const XML_TAG: &'static [u8] = b"<?xml";
[INFO] [stdout]     |       ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `DOCTYPE_TAG` is never used
[INFO] [stdout]    --> src/mimesniffer/magic.rs:405:7
[INFO] [stdout]     |
[INFO] [stdout] 405 | const DOCTYPE_TAG: &'static [u8] = b"<!DOCTYPE";
[INFO] [stdout]     |       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MAGIC_XML` is never used
[INFO] [stdout]    --> src/mimesniffer/magic.rs:407:7
[INFO] [stdout]     |
[INFO] [stdout] 407 | const MAGIC_XML: &'static [Magic] = &[
[INFO] [stdout]     |       ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sniff_xml` is never used
[INFO] [stdout]    --> src/mimesniffer/magic.rs:424:8
[INFO] [stdout]     |
[INFO] [stdout] 424 | pub fn sniff_xml<'a>(content: &[u8], type_hint: &'a str) -> (Option<&'a str>, bool) {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `OfficeDocType` is never used
[INFO] [stdout]    --> src/mimesniffer/magic.rs:460:10
[INFO] [stdout]     |
[INFO] [stdout] 460 | pub enum OfficeDocType {
[INFO] [stdout]     |          ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `OFFICE_EXTENSION_TYPES` is never used
[INFO] [stdout]    --> src/mimesniffer/magic.rs:466:7
[INFO] [stdout]     |
[INFO] [stdout] 466 | const OFFICE_EXTENSION_TYPES: &'static [(OfficeDocType, &'static str)] = &[
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `BYTES_REQUIRED_FOR_OFFICE_MAGIC` is never used
[INFO] [stdout]    --> src/mimesniffer/magic.rs:476:7
[INFO] [stdout]     |
[INFO] [stdout] 476 | const BYTES_REQUIRED_FOR_OFFICE_MAGIC: usize = 8;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `OFFICE_MAGIC_NUMBERS` is never used
[INFO] [stdout]    --> src/mimesniffer/magic.rs:478:7
[INFO] [stdout]     |
[INFO] [stdout] 478 | const OFFICE_MAGIC_NUMBERS: &'static [Magic] = &[
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_office_mime_type` is never used
[INFO] [stdout]    --> src/mimesniffer/magic.rs:483:8
[INFO] [stdout]     |
[INFO] [stdout] 483 | pub fn is_office_mime_type(type_hint: &str) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sniff_for_invalid_office_docs` is never used
[INFO] [stdout]    --> src/mimesniffer/magic.rs:511:8
[INFO] [stdout]     |
[INFO] [stdout] 511 | pub fn sniff_for_invalid_office_docs<'a>(content: &[u8], type_hint: &'a str) -> Option<&'a str> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sniff_for_office_docs` is never used
[INFO] [stdout]    --> src/mimesniffer/magic.rs:530:8
[INFO] [stdout]     |
[INFO] [stdout] 530 | pub fn sniff_for_office_docs<'a>(content: &[u8], url: &'a str) -> (Option<&'a str>, bool) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sniff_for_magic_numbers` is never used
[INFO] [stdout]    --> src/mimesniffer/magic.rs:573:8
[INFO] [stdout]     |
[INFO] [stdout] 573 | pub fn sniff_for_magic_numbers(content: &[u8]) -> (Option<&str>, bool) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `MimeTypeSniffable` is never used
[INFO] [stdout]   --> src/mimesniffer/api.rs:24:11
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub trait MimeTypeSniffable {
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SNIFFABLE_TYPES` is never used
[INFO] [stdout]   --> src/mimesniffer/api.rs:54:7
[INFO] [stdout]    |
[INFO] [stdout] 54 | const SNIFFABLE_TYPES: &'static [&'static str] = &[
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/mimesniffer/magic.rs:248:50
[INFO] [stdout]     |
[INFO] [stdout] 248 | pub fn sniff_mime_type_from_local_data<'a>(buf: &'a [u8]) -> Option<&str> {
[INFO] [stdout]     |                                                  ^^                 ---- the lifetime gets resolved as `'a`
[INFO] [stdout]     |                                                  |
[INFO] [stdout]     |                                                  this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 248 | pub fn sniff_mime_type_from_local_data<'a>(buf: &'a [u8]) -> Option<&'a str> {
[INFO] [stdout]     |                                                                      ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.76s
[INFO] running `Command { std: "docker" "inspect" "af81ff79dd9b558f4b2405550328587298971201bd96b30d88841f6de3c847b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "af81ff79dd9b558f4b2405550328587298971201bd96b30d88841f6de3c847b1", kill_on_drop: false }`
[INFO] [stdout] af81ff79dd9b558f4b2405550328587298971201bd96b30d88841f6de3c847b1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0b7e90d833de496add33c5c28a1ad6ac54e2e6aa25893d0a1f0c622e12fceda7
[INFO] running `Command { std: "docker" "start" "-a" "0b7e90d833de496add33c5c28a1ad6ac54e2e6aa25893d0a1f0c622e12fceda7", kill_on_drop: false }`
[INFO] [stderr]    Compiling mimesniff v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `is_unknown_mime_type` and `sniff_mime_type`
[INFO] [stdout]  --> src/mimesniffer/api.rs:4:20
[INFO] [stdout]   |
[INFO] [stdout] 4 | use super::magic::{is_unknown_mime_type, sniff_mime_type, sniff_mime_type_from_local_data};
[INFO] [stdout]   |                    ^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `MimeTypeSniffable` and `MimeTypeSniffer`
[INFO] [stdout]    --> src/mimesniffer/mod.rs:143:15
[INFO] [stdout]     |
[INFO] [stdout] 143 | pub use api::{MimeTypeSniffable, MimeTypeSniffer, MimeTypeSnifferExt};
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated trait `std::ascii::AsciiExt`: use inherent methods instead
[INFO] [stdout]  --> src/mimesniffer/magic.rs:1:17
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ascii::AsciiExt;
[INFO] [stdout]   |                 ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ascii::AsciiExt`
[INFO] [stdout]  --> src/mimesniffer/magic.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ascii::AsciiExt;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `String` is never constructed
[INFO] [stdout]  --> src/mimesniffer/magic.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub enum Magic {
[INFO] [stdout]   |          ----- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 6 |     String(&'static str, &'static str),
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `BYTES_REQUIRED_FOR_MAGIC` is never used
[INFO] [stdout]    --> src/mimesniffer/magic.rs:105:7
[INFO] [stdout]     |
[INFO] [stdout] 105 | const BYTES_REQUIRED_FOR_MAGIC: usize = 42;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MAX_BYTES_TO_SNIFF_HTML` is never used
[INFO] [stdout]    --> src/mimesniffer/magic.rs:107:7
[INFO] [stdout]     |
[INFO] [stdout] 107 | const MAX_BYTES_TO_SNIFF_HTML: usize = 512;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MAX_BYTES_TO_SNIFF_BIN` is never used
[INFO] [stdout]    --> src/mimesniffer/magic.rs:108:7
[INFO] [stdout]     |
[INFO] [stdout] 108 | const MAX_BYTES_TO_SNIFF_BIN: usize = 512;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MAX_BYTES_TO_SNIFF_XML` is never used
[INFO] [stdout]    --> src/mimesniffer/magic.rs:109:7
[INFO] [stdout]     |
[INFO] [stdout] 109 | const MAX_BYTES_TO_SNIFF_XML: usize = 300;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sniff_mime_type` is never used
[INFO] [stdout]    --> src/mimesniffer/magic.rs:142:8
[INFO] [stdout]     |
[INFO] [stdout] 142 | pub fn sniff_mime_type<'a>(buf: &'a [u8], url: &'a str, type_hint: &'a str) -> Option<&'a str> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `UNKNOWN_MIME_TYPES` is never used
[INFO] [stdout]    --> src/mimesniffer/magic.rs:263:7
[INFO] [stdout]     |
[INFO] [stdout] 263 | const UNKNOWN_MIME_TYPES: &'static [&'static str] =
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_unknown_mime_type` is never used
[INFO] [stdout]    --> src/mimesniffer/magic.rs:266:8
[INFO] [stdout]     |
[INFO] [stdout] 266 | pub fn is_unknown_mime_type(type_hint: &str) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `truncate_size` is never used
[INFO] [stdout]    --> src/mimesniffer/magic.rs:274:8
[INFO] [stdout]     |
[INFO] [stdout] 274 | pub fn truncate_size(content: &[u8], max_size: usize) -> (&[u8], bool) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SNIFFABLE_TAGS` is never used
[INFO] [stdout]    --> src/mimesniffer/magic.rs:290:7
[INFO] [stdout]     |
[INFO] [stdout] 290 | const SNIFFABLE_TAGS: &'static [Magic] = &[
[INFO] [stdout]     |       ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sniff_for_html` is never used
[INFO] [stdout]    --> src/mimesniffer/magic.rs:319:8
[INFO] [stdout]     |
[INFO] [stdout] 319 | pub fn sniff_for_html(content: &[u8]) -> (Option<&str>, bool) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `BYTE_ORDER_MARKS` is never used
[INFO] [stdout]    --> src/mimesniffer/magic.rs:342:7
[INFO] [stdout]     |
[INFO] [stdout] 342 | const BYTE_ORDER_MARKS: &'static [Magic] = &[
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `BYTE_LOOKS_BINARY` is never used
[INFO] [stdout]    --> src/mimesniffer/magic.rs:354:7
[INFO] [stdout]     |
[INFO] [stdout] 354 | const BYTE_LOOKS_BINARY: &'static [u8] = &[
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sniff_binary` is never used
[INFO] [stdout]    --> src/mimesniffer/magic.rs:376:8
[INFO] [stdout]     |
[INFO] [stdout] 376 | pub fn sniff_binary(content: &[u8]) -> (Option<&str>, bool) {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `XML_TAG` is never used
[INFO] [stdout]    --> src/mimesniffer/magic.rs:404:7
[INFO] [stdout]     |
[INFO] [stdout] 404 | const XML_TAG: &'static [u8] = b"<?xml";
[INFO] [stdout]     |       ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `DOCTYPE_TAG` is never used
[INFO] [stdout]    --> src/mimesniffer/magic.rs:405:7
[INFO] [stdout]     |
[INFO] [stdout] 405 | const DOCTYPE_TAG: &'static [u8] = b"<!DOCTYPE";
[INFO] [stdout]     |       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MAGIC_XML` is never used
[INFO] [stdout]    --> src/mimesniffer/magic.rs:407:7
[INFO] [stdout]     |
[INFO] [stdout] 407 | const MAGIC_XML: &'static [Magic] = &[
[INFO] [stdout]     |       ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sniff_xml` is never used
[INFO] [stdout]    --> src/mimesniffer/magic.rs:424:8
[INFO] [stdout]     |
[INFO] [stdout] 424 | pub fn sniff_xml<'a>(content: &[u8], type_hint: &'a str) -> (Option<&'a str>, bool) {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `OfficeDocType` is never used
[INFO] [stdout]    --> src/mimesniffer/magic.rs:460:10
[INFO] [stdout]     |
[INFO] [stdout] 460 | pub enum OfficeDocType {
[INFO] [stdout]     |          ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `OFFICE_EXTENSION_TYPES` is never used
[INFO] [stdout]    --> src/mimesniffer/magic.rs:466:7
[INFO] [stdout]     |
[INFO] [stdout] 466 | const OFFICE_EXTENSION_TYPES: &'static [(OfficeDocType, &'static str)] = &[
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `BYTES_REQUIRED_FOR_OFFICE_MAGIC` is never used
[INFO] [stdout]    --> src/mimesniffer/magic.rs:476:7
[INFO] [stdout]     |
[INFO] [stdout] 476 | const BYTES_REQUIRED_FOR_OFFICE_MAGIC: usize = 8;
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `OFFICE_MAGIC_NUMBERS` is never used
[INFO] [stdout]    --> src/mimesniffer/magic.rs:478:7
[INFO] [stdout]     |
[INFO] [stdout] 478 | const OFFICE_MAGIC_NUMBERS: &'static [Magic] = &[
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_office_mime_type` is never used
[INFO] [stdout]    --> src/mimesniffer/magic.rs:483:8
[INFO] [stdout]     |
[INFO] [stdout] 483 | pub fn is_office_mime_type(type_hint: &str) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sniff_for_invalid_office_docs` is never used
[INFO] [stdout]    --> src/mimesniffer/magic.rs:511:8
[INFO] [stdout]     |
[INFO] [stdout] 511 | pub fn sniff_for_invalid_office_docs<'a>(content: &[u8], type_hint: &'a str) -> Option<&'a str> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sniff_for_office_docs` is never used
[INFO] [stdout]    --> src/mimesniffer/magic.rs:530:8
[INFO] [stdout]     |
[INFO] [stdout] 530 | pub fn sniff_for_office_docs<'a>(content: &[u8], url: &'a str) -> (Option<&'a str>, bool) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sniff_for_magic_numbers` is never used
[INFO] [stdout]    --> src/mimesniffer/magic.rs:573:8
[INFO] [stdout]     |
[INFO] [stdout] 573 | pub fn sniff_for_magic_numbers(content: &[u8]) -> (Option<&str>, bool) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `MimeTypeSniffable` is never used
[INFO] [stdout]   --> src/mimesniffer/api.rs:24:11
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub trait MimeTypeSniffable {
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SNIFFABLE_TYPES` is never used
[INFO] [stdout]   --> src/mimesniffer/api.rs:54:7
[INFO] [stdout]    |
[INFO] [stdout] 54 | const SNIFFABLE_TYPES: &'static [&'static str] = &[
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/mimesniffer/magic.rs:248:50
[INFO] [stdout]     |
[INFO] [stdout] 248 | pub fn sniff_mime_type_from_local_data<'a>(buf: &'a [u8]) -> Option<&str> {
[INFO] [stdout]     |                                                  ^^                 ---- the lifetime gets resolved as `'a`
[INFO] [stdout]     |                                                  |
[INFO] [stdout]     |                                                  this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 248 | pub fn sniff_mime_type_from_local_data<'a>(buf: &'a [u8]) -> Option<&'a str> {
[INFO] [stdout]     |                                                                      ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `is_unknown_mime_type` and `sniff_mime_type`
[INFO] [stdout]  --> src/mimesniffer/api.rs:4:20
[INFO] [stdout]   |
[INFO] [stdout] 4 | use super::magic::{is_unknown_mime_type, sniff_mime_type, sniff_mime_type_from_local_data};
[INFO] [stdout]   |                    ^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `MimeTypeSniffable` and `MimeTypeSniffer`
[INFO] [stdout]    --> src/mimesniffer/mod.rs:143:15
[INFO] [stdout]     |
[INFO] [stdout] 143 | pub use api::{MimeTypeSniffable, MimeTypeSniffer, MimeTypeSnifferExt};
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated trait `std::ascii::AsciiExt`: use inherent methods instead
[INFO] [stdout]  --> src/mimesniffer/magic.rs:1:17
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ascii::AsciiExt;
[INFO] [stdout]   |                 ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ascii::AsciiExt`
[INFO] [stdout]  --> src/mimesniffer/magic.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::ascii::AsciiExt;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sniff_mime_type` is never used
[INFO] [stdout]    --> src/mimesniffer/magic.rs:142:8
[INFO] [stdout]     |
[INFO] [stdout] 142 | pub fn sniff_mime_type<'a>(buf: &'a [u8], url: &'a str, type_hint: &'a str) -> Option<&'a str> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_office_mime_type` is never used
[INFO] [stdout]    --> src/mimesniffer/magic.rs:483:8
[INFO] [stdout]     |
[INFO] [stdout] 483 | pub fn is_office_mime_type(type_hint: &str) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `MimeTypeSniffable` is never used
[INFO] [stdout]   --> src/mimesniffer/api.rs:24:11
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub trait MimeTypeSniffable {
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SNIFFABLE_TYPES` is never used
[INFO] [stdout]   --> src/mimesniffer/api.rs:54:7
[INFO] [stdout]    |
[INFO] [stdout] 54 | const SNIFFABLE_TYPES: &'static [&'static str] = &[
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/mimesniffer/magic.rs:248:50
[INFO] [stdout]     |
[INFO] [stdout] 248 | pub fn sniff_mime_type_from_local_data<'a>(buf: &'a [u8]) -> Option<&str> {
[INFO] [stdout]     |                                                  ^^                 ---- the lifetime gets resolved as `'a`
[INFO] [stdout]     |                                                  |
[INFO] [stdout]     |                                                  this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 248 | pub fn sniff_mime_type_from_local_data<'a>(buf: &'a [u8]) -> Option<&'a str> {
[INFO] [stdout]     |                                                                      ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.08s
[INFO] running `Command { std: "docker" "inspect" "0b7e90d833de496add33c5c28a1ad6ac54e2e6aa25893d0a1f0c622e12fceda7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b7e90d833de496add33c5c28a1ad6ac54e2e6aa25893d0a1f0c622e12fceda7", kill_on_drop: false }`
[INFO] [stdout] 0b7e90d833de496add33c5c28a1ad6ac54e2e6aa25893d0a1f0c622e12fceda7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 96596dbbf85dd09b8c585e88b37a8597d3d4f4d6cff062291bd098ef6764960b
[INFO] running `Command { std: "docker" "start" "-a" "96596dbbf85dd09b8c585e88b37a8597d3d4f4d6cff062291bd098ef6764960b", kill_on_drop: false }`
[INFO] [stderr] warning: unused imports: `is_unknown_mime_type` and `sniff_mime_type`
[INFO] [stderr]  --> src/mimesniffer/api.rs:4:20
[INFO] [stderr]   |
[INFO] [stderr] 4 | use super::magic::{is_unknown_mime_type, sniff_mime_type, sniff_mime_type_from_local_data};
[INFO] [stderr]   |                    ^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `MimeTypeSniffable` and `MimeTypeSniffer`
[INFO] [stderr]    --> src/mimesniffer/mod.rs:143:15
[INFO] [stderr]     |
[INFO] [stderr] 143 | pub use api::{MimeTypeSniffable, MimeTypeSniffer, MimeTypeSnifferExt};
[INFO] [stderr]     |               ^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated trait `std::ascii::AsciiExt`: use inherent methods instead
[INFO] [stderr]  --> src/mimesniffer/magic.rs:1:17
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::ascii::AsciiExt;
[INFO] [stderr]   |                 ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::ascii::AsciiExt`
[INFO] [stderr]  --> src/mimesniffer/magic.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::ascii::AsciiExt;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant `String` is never constructed
[INFO] [stderr]  --> src/mimesniffer/magic.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub enum Magic {
[INFO] [stderr]   |          ----- variant in this enum
[INFO] [stderr] ...
[INFO] [stderr] 6 |     String(&'static str, &'static str),
[INFO] [stderr]   |     ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant `BYTES_REQUIRED_FOR_MAGIC` is never used
[INFO] [stderr]    --> src/mimesniffer/magic.rs:105:7
[INFO] [stderr]     |
[INFO] [stderr] 105 | const BYTES_REQUIRED_FOR_MAGIC: usize = 42;
[INFO] [stderr]     |       ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `MAX_BYTES_TO_SNIFF_HTML` is never used
[INFO] [stderr]    --> src/mimesniffer/magic.rs:107:7
[INFO] [stderr]     |
[INFO] [stderr] 107 | const MAX_BYTES_TO_SNIFF_HTML: usize = 512;
[INFO] [stderr]     |       ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `MAX_BYTES_TO_SNIFF_BIN` is never used
[INFO] [stderr]    --> src/mimesniffer/magic.rs:108:7
[INFO] [stderr]     |
[INFO] [stderr] 108 | const MAX_BYTES_TO_SNIFF_BIN: usize = 512;
[INFO] [stderr]     |       ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `MAX_BYTES_TO_SNIFF_XML` is never used
[INFO] [stderr]    --> src/mimesniffer/magic.rs:109:7
[INFO] [stderr]     |
[INFO] [stderr] 109 | const MAX_BYTES_TO_SNIFF_XML: usize = 300;
[INFO] [stderr]     |       ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `sniff_mime_type` is never used
[INFO] [stderr]    --> src/mimesniffer/magic.rs:142:8
[INFO] [stderr]     |
[INFO] [stderr] 142 | pub fn sniff_mime_type<'a>(buf: &'a [u8], url: &'a str, type_hint: &'a str) -> Option<&'a str> {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `UNKNOWN_MIME_TYPES` is never used
[INFO] [stderr]    --> src/mimesniffer/magic.rs:263:7
[INFO] [stderr]     |
[INFO] [stderr] 263 | const UNKNOWN_MIME_TYPES: &'static [&'static str] =
[INFO] [stderr]     |       ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `is_unknown_mime_type` is never used
[INFO] [stderr]    --> src/mimesniffer/magic.rs:266:8
[INFO] [stderr]     |
[INFO] [stderr] 266 | pub fn is_unknown_mime_type(type_hint: &str) -> bool {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `truncate_size` is never used
[INFO] [stderr]    --> src/mimesniffer/magic.rs:274:8
[INFO] [stderr]     |
[INFO] [stderr] 274 | pub fn truncate_size(content: &[u8], max_size: usize) -> (&[u8], bool) {
[INFO] [stderr]     |        ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `SNIFFABLE_TAGS` is never used
[INFO] [stderr]    --> src/mimesniffer/magic.rs:290:7
[INFO] [stderr]     |
[INFO] [stderr] 290 | const SNIFFABLE_TAGS: &'static [Magic] = &[
[INFO] [stderr]     |       ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `sniff_for_html` is never used
[INFO] [stderr]    --> src/mimesniffer/magic.rs:319:8
[INFO] [stderr]     |
[INFO] [stderr] 319 | pub fn sniff_for_html(content: &[u8]) -> (Option<&str>, bool) {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `BYTE_ORDER_MARKS` is never used
[INFO] [stderr]    --> src/mimesniffer/magic.rs:342:7
[INFO] [stderr]     |
[INFO] [stderr] 342 | const BYTE_ORDER_MARKS: &'static [Magic] = &[
[INFO] [stderr]     |       ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `BYTE_LOOKS_BINARY` is never used
[INFO] [stderr]    --> src/mimesniffer/magic.rs:354:7
[INFO] [stderr]     |
[INFO] [stderr] 354 | const BYTE_LOOKS_BINARY: &'static [u8] = &[
[INFO] [stderr]     |       ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `sniff_binary` is never used
[INFO] [stderr]    --> src/mimesniffer/magic.rs:376:8
[INFO] [stderr]     |
[INFO] [stderr] 376 | pub fn sniff_binary(content: &[u8]) -> (Option<&str>, bool) {
[INFO] [stderr]     |        ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `XML_TAG` is never used
[INFO] [stderr]    --> src/mimesniffer/magic.rs:404:7
[INFO] [stderr]     |
[INFO] [stderr] 404 | const XML_TAG: &'static [u8] = b"<?xml";
[INFO] [stderr]     |       ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `DOCTYPE_TAG` is never used
[INFO] [stderr]    --> src/mimesniffer/magic.rs:405:7
[INFO] [stderr]     |
[INFO] [stderr] 405 | const DOCTYPE_TAG: &'static [u8] = b"<!DOCTYPE";
[INFO] [stderr]     |       ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `MAGIC_XML` is never used
[INFO] [stderr]    --> src/mimesniffer/magic.rs:407:7
[INFO] [stderr]     |
[INFO] [stderr] 407 | const MAGIC_XML: &'static [Magic] = &[
[INFO] [stderr]     |       ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `sniff_xml` is never used
[INFO] [stderr]    --> src/mimesniffer/magic.rs:424:8
[INFO] [stderr]     |
[INFO] [stderr] 424 | pub fn sniff_xml<'a>(content: &[u8], type_hint: &'a str) -> (Option<&'a str>, bool) {
[INFO] [stderr]     |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum `OfficeDocType` is never used
[INFO] [stderr]    --> src/mimesniffer/magic.rs:460:10
[INFO] [stderr]     |
[INFO] [stderr] 460 | pub enum OfficeDocType {
[INFO] [stderr]     |          ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `OFFICE_EXTENSION_TYPES` is never used
[INFO] [stderr]    --> src/mimesniffer/magic.rs:466:7
[INFO] [stderr]     |
[INFO] [stderr] 466 | const OFFICE_EXTENSION_TYPES: &'static [(OfficeDocType, &'static str)] = &[
[INFO] [stderr]     |       ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `BYTES_REQUIRED_FOR_OFFICE_MAGIC` is never used
[INFO] [stderr]    --> src/mimesniffer/magic.rs:476:7
[INFO] [stderr]     |
[INFO] [stderr] 476 | const BYTES_REQUIRED_FOR_OFFICE_MAGIC: usize = 8;
[INFO] [stderr]     |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `OFFICE_MAGIC_NUMBERS` is never used
[INFO] [stderr]    --> src/mimesniffer/magic.rs:478:7
[INFO] [stderr]     |
[INFO] [stderr] 478 | const OFFICE_MAGIC_NUMBERS: &'static [Magic] = &[
[INFO] [stderr]     |       ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `is_office_mime_type` is never used
[INFO] [stderr]    --> src/mimesniffer/magic.rs:483:8
[INFO] [stderr]     |
[INFO] [stderr] 483 | pub fn is_office_mime_type(type_hint: &str) -> bool {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `sniff_for_invalid_office_docs` is never used
[INFO] [stderr]    --> src/mimesniffer/magic.rs:511:8
[INFO] [stderr]     |
[INFO] [stderr] 511 | pub fn sniff_for_invalid_office_docs<'a>(content: &[u8], type_hint: &'a str) -> Option<&'a str> {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `sniff_for_office_docs` is never used
[INFO] [stderr]    --> src/mimesniffer/magic.rs:530:8
[INFO] [stderr]     |
[INFO] [stderr] 530 | pub fn sniff_for_office_docs<'a>(content: &[u8], url: &'a str) -> (Option<&'a str>, bool) {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `sniff_for_magic_numbers` is never used
[INFO] [stderr]    --> src/mimesniffer/magic.rs:573:8
[INFO] [stderr]     |
[INFO] [stderr] 573 | pub fn sniff_for_magic_numbers(content: &[u8]) -> (Option<&str>, bool) {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait `MimeTypeSniffable` is never used
[INFO] [stderr]   --> src/mimesniffer/api.rs:24:11
[INFO] [stderr]    |
[INFO] [stderr] 24 | pub trait MimeTypeSniffable {
[INFO] [stderr]    |           ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `SNIFFABLE_TYPES` is never used
[INFO] [stderr]   --> src/mimesniffer/api.rs:54:7
[INFO] [stderr]    |
[INFO] [stderr] 54 | const SNIFFABLE_TYPES: &'static [&'static str] = &[
[INFO] [stderr]    |       ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stderr]    --> src/mimesniffer/magic.rs:248:50
[INFO] [stderr]     |
[INFO] [stderr] 248 | pub fn sniff_mime_type_from_local_data<'a>(buf: &'a [u8]) -> Option<&str> {
[INFO] [stderr]     |                                                  ^^                 ---- the lifetime gets resolved as `'a`
[INFO] [stderr]     |                                                  |
[INFO] [stderr]     |                                                  this lifetime flows to the output
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: one option is to consistently use `'a`
[INFO] [stderr]     |
[INFO] [stderr] 248 | pub fn sniff_mime_type_from_local_data<'a>(buf: &'a [u8]) -> Option<&'a str> {
[INFO] [stderr]     |                                                                      ++
[INFO] [stderr] 
[INFO] [stderr] warning: `mimesniff` (lib) generated 33 warnings (run `cargo fix --lib -p mimesniff` to apply 2 suggestions)
[INFO] [stderr] warning: function `sniff_mime_type` is never used
[INFO] [stderr]    --> src/mimesniffer/magic.rs:142:8
[INFO] [stderr]     |
[INFO] [stderr] 142 | pub fn sniff_mime_type<'a>(buf: &'a [u8], url: &'a str, type_hint: &'a str) -> Option<&'a str> {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `mimesniff` (lib test) generated 9 warnings (8 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/mimesniff-0dd7daf3e4772c40)
[INFO] [stdout] 
[INFO] [stdout] running 15 tests
[INFO] [stdout] test mimesniffer::magic::tests::test_magic_number ... ok
[INFO] [stdout] test mimesniffer::magic::tests::test_magic_mask ... ok
[INFO] [stdout] test mimesniffer::magic::tests::test_magic_string ... ok
[INFO] [stdout] test mimesniffer::magic::tests::test_invalid_office_docs ... ok
[INFO] [stdout] test mimesniffer::magic::tests::test_sniff_for_magic_numbers ... ok
[INFO] [stdout] test mimesniffer::magic::tests::test_sniff_binary ... ok
[INFO] [stdout] test mimesniffer::api::tests::test_mime_type_sniffer ... ok
[INFO] [stdout] test mimesniffer::magic::tests::test_sniff_for_office_docs ... ok
[INFO] [stdout] test mimesniffer::magic::tests::test_sniff_xml ... ok
[INFO] [stdout] test mimesniffer::magic::tests::test_sniff_mime_type_from_local_data ... ok
[INFO] [stdout] test tests::detect_content_type ... ok
[INFO] [stdout] test tests::is_jpeg ... ok
[INFO] [stdout] test mimesniffer::magic::tests::test_unknown_mime_type ... ok
[INFO] [stdout] test tests::is_png ... ok
[INFO] [stderr]    Doc-tests mimesniff
[INFO] [stdout] test mimesniffer::magic::tests::test_sniff_for_html ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 15 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/mimesniffer/mod.rs - mimesniffer (line 121) ... FAILED
[INFO] [stdout] test src/mimesniffer/mod.rs - mimesniffer (line 115) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/mimesniffer/mod.rs - mimesniffer (line 121) stdout ----
[INFO] [stdout] error[E0463]: can't find crate for `mime_sniffer`
[INFO] [stdout]  --> src/mimesniffer/mod.rs:124:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | extern crate mime_sniffer;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/mimesniffer/mod.rs - mimesniffer (line 115) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `mime_sniffer`
[INFO] [stdout]  --> src/mimesniffer/mod.rs:116:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use mime_sniffer::MimeTypeSniffer;
[INFO] [stdout]   |     ^^^^^^^^^^^^ use of unresolved module or unlinked crate `mime_sniffer`
[INFO] [stdout]   |
[INFO] [stdout] help: there is a crate or module with a similar name
[INFO] [stdout]   |
[INFO] [stdout] 3 - use mime_sniffer::MimeTypeSniffer;
[INFO] [stdout] 3 + use mimesniff::MimeTypeSniffer;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `sniff_mime_type` found for reference `&'static [u8; 8]` in the current scope
[INFO] [stdout]  --> src/mimesniffer/mod.rs:118:49
[INFO] [stdout]   |
[INFO] [stdout] 5 | assert_eq!(Some("application/pdf"), b"%PDF-1.5".sniff_mime_type());
[INFO] [stdout]   |                                                 ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: trait `MimeTypeSniffer` which provides `sniff_mime_type` is implemented but not in scope; perhaps you want to import it
[INFO] [stdout]   |
[INFO] [stdout] 2 + use mimesniff::mimesniffer::api::MimeTypeSniffer;
[INFO] [stdout]   |
[INFO] [stdout] help: there is a method `sniff_mime_type_ext` with a similar name
[INFO] [stdout]   |
[INFO] [stdout] 5 | assert_eq!(Some("application/pdf"), b"%PDF-1.5".sniff_mime_type_ext());
[INFO] [stdout]   |                                                                ++++
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0599.
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/mimesniffer/mod.rs - mimesniffer (line 115)
[INFO] [stdout]     src/mimesniffer/mod.rs - mimesniffer (line 121)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.19s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "96596dbbf85dd09b8c585e88b37a8597d3d4f4d6cff062291bd098ef6764960b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "96596dbbf85dd09b8c585e88b37a8597d3d4f4d6cff062291bd098ef6764960b", kill_on_drop: false }`
[INFO] [stdout] 96596dbbf85dd09b8c585e88b37a8597d3d4f4d6cff062291bd098ef6764960b
