[INFO] fetching crate tyfers 0.2.0...
[INFO] testing tyfers-0.2.0 against master#562dee4820c458d823175268e41601d4c060588a for pr-154210-2
[INFO] extracting crate tyfers 0.2.0 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate tyfers 0.2.0
[INFO] finished tweaking crates.io crate tyfers 0.2.0
[INFO] tweaked toml for crates.io crate tyfers 0.2.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate tyfers 0.2.0 on toolchain 562dee4820c458d823175268e41601d4c060588a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "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" "+562dee4820c458d823175268e41601d4c060588a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e6816f2c8576a615f33ced561c03f8402c71ba88562008b4d94786b80ea61701
[INFO] running `Command { std: "docker" "start" "-a" "e6816f2c8576a615f33ced561c03f8402c71ba88562008b4d94786b80ea61701", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e6816f2c8576a615f33ced561c03f8402c71ba88562008b4d94786b80ea61701", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6816f2c8576a615f33ced561c03f8402c71ba88562008b4d94786b80ea61701", kill_on_drop: false }`
[INFO] [stdout] e6816f2c8576a615f33ced561c03f8402c71ba88562008b4d94786b80ea61701
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 02be63cf1cc7f1879a0854e9b8187f00199f6169d79db62fe4984455220c7de6
[INFO] running `Command { std: "docker" "start" "-a" "02be63cf1cc7f1879a0854e9b8187f00199f6169d79db62fe4984455220c7de6", kill_on_drop: false }`
[INFO] [stderr]    Compiling tyfers v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/lib.rs:99:13
[INFO] [stdout]    |
[INFO] [stdout] 99 |             _ => {
[INFO] [stdout]    |             ^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]   --> src/lib.rs:99:13
[INFO] [stdout]    |
[INFO] [stdout] 66 |               Markers::FPaperStart => 0x02,
[INFO] [stdout]    |               -------------------- matches some of the same values
[INFO] [stdout] 67 | /             Markers::FPaperStart2
[INFO] [stdout] 68 | |                 | Markers::GifStart3
[INFO] [stdout] 69 | |                 | Markers::PdfStart4 => 0x46,
[INFO] [stdout]    | |____________________________________- matches some of the same values
[INFO] [stdout] 70 | /             Markers::FPaperStart3
[INFO] [stdout] 71 | |                 | Markers::PngStart2
[INFO] [stdout] 72 | |                 | Markers::WebpStart4
[INFO] [stdout] 73 | |                 | Markers::PdfStart2 => 0x50,
[INFO] [stdout]    | |____________________________________- matches some of the same values
[INFO] [stdout] 74 |               Markers::FPaperStart4 => 0x61,
[INFO] [stdout]    |               --------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 99 |               _ => {
[INFO] [stdout]    |               ^ ...and 16 other patterns collectively make this unreachable
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `extension`, `filename`, and `binary_ext` are never read
[INFO] [stdout]   --> src/lib.rs:58:5
[INFO] [stdout]    |
[INFO] [stdout] 57 | pub struct Tyfe {
[INFO] [stdout]    |            ---- fields in this struct
[INFO] [stdout] 58 |     extension: String,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 59 |     filename: String,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 60 |     binary_ext: Vec<String>,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `val` is never used
[INFO] [stdout]   --> src/lib.rs:64:8
[INFO] [stdout]    |
[INFO] [stdout] 63 | impl Markers {
[INFO] [stdout]    | ------------ method in this implementation
[INFO] [stdout] 64 |     fn val(&self) -> u8 {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `check` and `what_is_this` are never used
[INFO] [stdout]    --> src/lib.rs:127:8
[INFO] [stdout]     |
[INFO] [stdout] 126 | impl Tyfe {
[INFO] [stdout]     | --------- methods in this implementation
[INFO] [stdout] 127 |     fn check(&mut self, file: String) -> Tyfes {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 149 |     fn what_is_this(&self) -> Tyfes {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.28s
[INFO] running `Command { std: "docker" "inspect" "02be63cf1cc7f1879a0854e9b8187f00199f6169d79db62fe4984455220c7de6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "02be63cf1cc7f1879a0854e9b8187f00199f6169d79db62fe4984455220c7de6", kill_on_drop: false }`
[INFO] [stdout] 02be63cf1cc7f1879a0854e9b8187f00199f6169d79db62fe4984455220c7de6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a477b30c7dbe770fafd929dccd07dc5a88892b895150a8e58891dcab19708f88
[INFO] running `Command { std: "docker" "start" "-a" "a477b30c7dbe770fafd929dccd07dc5a88892b895150a8e58891dcab19708f88", kill_on_drop: false }`
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/lib.rs:99:13
[INFO] [stdout]    |
[INFO] [stdout] 99 |             _ => {
[INFO] [stdout]    |             ^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]   --> src/lib.rs:99:13
[INFO] [stdout]    |
[INFO] [stdout] 66 |               Markers::FPaperStart => 0x02,
[INFO] [stdout]    |               -------------------- matches some of the same values
[INFO] [stdout] 67 | /             Markers::FPaperStart2
[INFO] [stdout] 68 | |                 | Markers::GifStart3
[INFO] [stdout] 69 | |                 | Markers::PdfStart4 => 0x46,
[INFO] [stdout]    | |____________________________________- matches some of the same values
[INFO] [stdout] 70 | /             Markers::FPaperStart3
[INFO] [stdout] 71 | |                 | Markers::PngStart2
[INFO] [stdout] 72 | |                 | Markers::WebpStart4
[INFO] [stdout] 73 | |                 | Markers::PdfStart2 => 0x50,
[INFO] [stdout]    | |____________________________________- matches some of the same values
[INFO] [stdout] 74 |               Markers::FPaperStart4 => 0x61,
[INFO] [stdout]    |               --------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 99 |               _ => {
[INFO] [stdout]    |               ^ ...and 16 other patterns collectively make this unreachable
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `extension`, `filename`, and `binary_ext` are never read
[INFO] [stdout]   --> src/lib.rs:58:5
[INFO] [stdout]    |
[INFO] [stdout] 57 | pub struct Tyfe {
[INFO] [stdout]    |            ---- fields in this struct
[INFO] [stdout] 58 |     extension: String,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 59 |     filename: String,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 60 |     binary_ext: Vec<String>,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `val` is never used
[INFO] [stdout]   --> src/lib.rs:64:8
[INFO] [stdout]    |
[INFO] [stdout] 63 | impl Markers {
[INFO] [stdout]    | ------------ method in this implementation
[INFO] [stdout] 64 |     fn val(&self) -> u8 {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling tyfers v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: methods `check` and `what_is_this` are never used
[INFO] [stdout]    --> src/lib.rs:127:8
[INFO] [stdout]     |
[INFO] [stdout] 126 | impl Tyfe {
[INFO] [stdout]     | --------- methods in this implementation
[INFO] [stdout] 127 |     fn check(&mut self, file: String) -> Tyfes {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 149 |     fn what_is_this(&self) -> Tyfes {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `stdin`
[INFO] [stdout]    --> src/lib.rs:214:19
[INFO] [stdout]     |
[INFO] [stdout] 214 |     use std::io::{stdin};
[INFO] [stdout]     |                   ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/lib.rs:99:13
[INFO] [stdout]    |
[INFO] [stdout] 99 |             _ => {
[INFO] [stdout]    |             ^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]   --> src/lib.rs:99:13
[INFO] [stdout]    |
[INFO] [stdout] 66 |               Markers::FPaperStart => 0x02,
[INFO] [stdout]    |               -------------------- matches some of the same values
[INFO] [stdout] 67 | /             Markers::FPaperStart2
[INFO] [stdout] 68 | |                 | Markers::GifStart3
[INFO] [stdout] 69 | |                 | Markers::PdfStart4 => 0x46,
[INFO] [stdout]    | |____________________________________- matches some of the same values
[INFO] [stdout] 70 | /             Markers::FPaperStart3
[INFO] [stdout] 71 | |                 | Markers::PngStart2
[INFO] [stdout] 72 | |                 | Markers::WebpStart4
[INFO] [stdout] 73 | |                 | Markers::PdfStart2 => 0x50,
[INFO] [stdout]    | |____________________________________- matches some of the same values
[INFO] [stdout] 74 |               Markers::FPaperStart4 => 0x61,
[INFO] [stdout]    |               --------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 99 |               _ => {
[INFO] [stdout]    |               ^ ...and 16 other patterns collectively make this unreachable
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `binary_ext` is never read
[INFO] [stdout]   --> src/lib.rs:60:5
[INFO] [stdout]    |
[INFO] [stdout] 57 | pub struct Tyfe {
[INFO] [stdout]    |            ---- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 60 |     binary_ext: Vec<String>,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.50s
[INFO] running `Command { std: "docker" "inspect" "a477b30c7dbe770fafd929dccd07dc5a88892b895150a8e58891dcab19708f88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a477b30c7dbe770fafd929dccd07dc5a88892b895150a8e58891dcab19708f88", kill_on_drop: false }`
[INFO] [stdout] a477b30c7dbe770fafd929dccd07dc5a88892b895150a8e58891dcab19708f88
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] dd1d9ceb46ced98deb47c5ba16862abaa8f576a3f09e6d9620341461435e5d19
[INFO] running `Command { std: "docker" "start" "-a" "dd1d9ceb46ced98deb47c5ba16862abaa8f576a3f09e6d9620341461435e5d19", kill_on_drop: false }`
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]   --> src/lib.rs:99:13
[INFO] [stderr]    |
[INFO] [stderr] 99 |             _ => {
[INFO] [stderr]    |             ^ no value can reach this
[INFO] [stderr]    |
[INFO] [stderr] note: multiple earlier patterns match some of the same values
[INFO] [stderr]   --> src/lib.rs:99:13
[INFO] [stderr]    |
[INFO] [stderr] 66 |               Markers::FPaperStart => 0x02,
[INFO] [stderr]    |               -------------------- matches some of the same values
[INFO] [stderr] 67 | /             Markers::FPaperStart2
[INFO] [stderr] 68 | |                 | Markers::GifStart3
[INFO] [stderr] 69 | |                 | Markers::PdfStart4 => 0x46,
[INFO] [stderr]    | |____________________________________- matches some of the same values
[INFO] [stderr] 70 | /             Markers::FPaperStart3
[INFO] [stderr] 71 | |                 | Markers::PngStart2
[INFO] [stderr] 72 | |                 | Markers::WebpStart4
[INFO] [stderr] 73 | |                 | Markers::PdfStart2 => 0x50,
[INFO] [stderr]    | |____________________________________- matches some of the same values
[INFO] [stderr] 74 |               Markers::FPaperStart4 => 0x61,
[INFO] [stderr]    |               --------------------- matches some of the same values
[INFO] [stderr] ...
[INFO] [stderr] 99 |               _ => {
[INFO] [stderr]    |               ^ ...and 16 other patterns collectively make this unreachable
[INFO] [stderr]    = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: fields `extension`, `filename`, and `binary_ext` are never read
[INFO] [stderr]   --> src/lib.rs:58:5
[INFO] [stderr]    |
[INFO] [stderr] 57 | pub struct Tyfe {
[INFO] [stderr]    |            ---- fields in this struct
[INFO] [stderr] 58 |     extension: String,
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr] 59 |     filename: String,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 60 |     binary_ext: Vec<String>,
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method `val` is never used
[INFO] [stderr]   --> src/lib.rs:64:8
[INFO] [stderr]    |
[INFO] [stderr] 63 | impl Markers {
[INFO] [stderr]    | ------------ method in this implementation
[INFO] [stderr] 64 |     fn val(&self) -> u8 {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: methods `check` and `what_is_this` are never used
[INFO] [stderr]    --> src/lib.rs:127:8
[INFO] [stderr]     |
[INFO] [stderr] 126 | impl Tyfe {
[INFO] [stderr]     | --------- methods in this implementation
[INFO] [stderr] 127 |     fn check(&mut self, file: String) -> Tyfes {
[INFO] [stderr]     |        ^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 149 |     fn what_is_this(&self) -> Tyfes {
[INFO] [stderr]     |        ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `tyfers` (lib) generated 4 warnings
[INFO] [stderr] warning: unused import: `stdin`
[INFO] [stderr]    --> src/lib.rs:214:19
[INFO] [stderr]     |
[INFO] [stderr] 214 |     use std::io::{stdin};
[INFO] [stderr]     |                   ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field `binary_ext` is never read
[INFO] [stderr]   --> src/lib.rs:60:5
[INFO] [stderr]    |
[INFO] [stderr] 57 | pub struct Tyfe {
[INFO] [stderr]    |            ---- field in this struct
[INFO] [stderr] ...
[INFO] [stderr] 60 |     binary_ext: Vec<String>,
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `tyfers` (lib test) generated 3 warnings (1 duplicate) (run `cargo fix --lib -p tyfers --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/tyfers-c8d3e8baa7cec0d0)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] [stdout] test tests::hmm ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- tests::hmm stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'tests::hmm' (17) panicked at src/lib.rs:150:50:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: Os { code: 2, kind: NotFound, message: "No such file or directory" }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x59a65c80b03a - std[31e582c13f4e914f]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stdout]                                at /rustc/562dee4820c458d823175268e41601d4c060588a/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x59a65c80b03a - std[31e582c13f4e914f]::backtrace_rs::backtrace::trace_unsynchronized::<std[31e582c13f4e914f]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stdout]                                at /rustc/562dee4820c458d823175268e41601d4c060588a/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x59a65c80b03a - std[31e582c13f4e914f]::sys::backtrace::_print_fmt
[INFO] [stdout]                                at /rustc/562dee4820c458d823175268e41601d4c060588a/library/std/src/sys/backtrace.rs:74:9
[INFO] [stdout]    3:     0x59a65c80b03a - <<std[31e582c13f4e914f]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[fa0eadad68403074]::fmt::Display>::fmt
[INFO] [stdout]                                at /rustc/562dee4820c458d823175268e41601d4c060588a/library/std/src/sys/backtrace.rs:44:26
[INFO] [stdout]    4:     0x59a65c81ecfa - <core[fa0eadad68403074]::fmt::rt::Argument>::fmt
[INFO] [stdout]                                at /rustc/562dee4820c458d823175268e41601d4c060588a/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x59a65c81ecfa - core[fa0eadad68403074]::fmt::write
[INFO] [stdout]    6:     0x59a65c80f8c2 - std[31e582c13f4e914f]::io::default_write_fmt::<alloc[49b8922c36ca62de]::vec::Vec<u8>>
[INFO] [stdout]                                at /rustc/562dee4820c458d823175268e41601d4c060588a/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x59a65c80f8c2 - <alloc[49b8922c36ca62de]::vec::Vec<u8> as std[31e582c13f4e914f]::io::Write>::write_fmt
[INFO] [stdout]                                at /rustc/562dee4820c458d823175268e41601d4c060588a/library/std/src/io/mod.rs:1994:13
[INFO] [stdout]    8:     0x59a65c7e9e9f - <std[31e582c13f4e914f]::sys::backtrace::BacktraceLock>::print
[INFO] [stdout]                                at /rustc/562dee4820c458d823175268e41601d4c060588a/library/std/src/sys/backtrace.rs:47:9
[INFO] [stdout]    9:     0x59a65c7e9e9f - std[31e582c13f4e914f]::panicking::default_hook::{closure#0}
[INFO] [stdout]                                at /rustc/562dee4820c458d823175268e41601d4c060588a/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x59a65c8032a9 - std[31e582c13f4e914f]::panicking::default_hook
[INFO] [stdout]                                at /rustc/562dee4820c458d823175268e41601d4c060588a/library/std/src/panicking.rs:316:9
[INFO] [stdout]   11:     0x59a65c79ffcc - <alloc[49b8922c36ca62de]::boxed::Box<dyn for<'a, 'b> core[fa0eadad68403074]::ops::function::Fn<(&'a std[31e582c13f4e914f]::panic::PanicHookInfo<'b>,), Output = ()> + core[fa0eadad68403074]::marker::Sync + core[fa0eadad68403074]::marker::Send> as core[fa0eadad68403074]::ops::function::Fn<(&std[31e582c13f4e914f]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/562dee4820c458d823175268e41601d4c060588a/library/alloc/src/boxed.rs:2254:9
[INFO] [stdout]   12:     0x59a65c79ffcc - test[7530e63dc052480e]::test_main_with_exit_callback::<test[7530e63dc052480e]::test_main::{closure#0}>::{closure#0}
[INFO] [stdout]                                at /rustc/562dee4820c458d823175268e41601d4c060588a/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x59a65c803462 - <alloc[49b8922c36ca62de]::boxed::Box<dyn for<'a, 'b> core[fa0eadad68403074]::ops::function::Fn<(&'a std[31e582c13f4e914f]::panic::PanicHookInfo<'b>,), Output = ()> + core[fa0eadad68403074]::marker::Sync + core[fa0eadad68403074]::marker::Send> as core[fa0eadad68403074]::ops::function::Fn<(&std[31e582c13f4e914f]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/562dee4820c458d823175268e41601d4c060588a/library/alloc/src/boxed.rs:2254:9
[INFO] [stdout]   14:     0x59a65c803462 - std[31e582c13f4e914f]::panicking::panic_with_hook
[INFO] [stdout]                                at /rustc/562dee4820c458d823175268e41601d4c060588a/library/std/src/panicking.rs:833:13
[INFO] [stdout]   15:     0x59a65c7e9f58 - std[31e582c13f4e914f]::panicking::panic_handler::{closure#0}
[INFO] [stdout]                                at /rustc/562dee4820c458d823175268e41601d4c060588a/library/std/src/panicking.rs:698:13
[INFO] [stdout]   16:     0x59a65c7df019 - std[31e582c13f4e914f]::sys::backtrace::__rust_end_short_backtrace::<std[31e582c13f4e914f]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]                                at /rustc/562dee4820c458d823175268e41601d4c060588a/library/std/src/sys/backtrace.rs:182:18
[INFO] [stdout]   17:     0x59a65c7eac6d - __rustc[fc8e3a9f23f26cb]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/562dee4820c458d823175268e41601d4c060588a/library/std/src/panicking.rs:689:5
[INFO] [stdout]   18:     0x59a65c81f44c - core[fa0eadad68403074]::panicking::panic_fmt
[INFO] [stdout]                                at /rustc/562dee4820c458d823175268e41601d4c060588a/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x59a65c81f1c2 - core[fa0eadad68403074]::result::unwrap_failed
[INFO] [stdout]                                at /rustc/562dee4820c458d823175268e41601d4c060588a/library/core/src/result.rs:1867:5
[INFO] [stdout]   20:     0x59a65c78f0f3 - <core[fa0eadad68403074]::result::Result<alloc[49b8922c36ca62de]::vec::Vec<u8>, std[31e582c13f4e914f]::io::error::Error>>::unwrap
[INFO] [stdout]                                at /rustc/562dee4820c458d823175268e41601d4c060588a/library/core/src/result.rs:1233:23
[INFO] [stdout]   21:     0x59a65c78f0f3 - <tyfers[fb0c88ae04f481ca]::Tyfe>::what_is_this
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:150:50
[INFO] [stdout]   22:     0x59a65c790ce3 - <tyfers[fb0c88ae04f481ca]::Tyfe>::check
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:143:22
[INFO] [stdout]   23:     0x59a65c7916ad - tyfers[fb0c88ae04f481ca]::tests::hmm
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:231:39
[INFO] [stdout]   24:     0x59a65c78eb97 - tyfers[fb0c88ae04f481ca]::tests::hmm::{closure#0}
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:217:13
[INFO] [stdout]   25:     0x59a65c793f96 - <tyfers[fb0c88ae04f481ca]::tests::hmm::{closure#0} as core[fa0eadad68403074]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/562dee4820c458d823175268e41601d4c060588a/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   26:     0x59a65c7940ab - <fn() -> core[fa0eadad68403074]::result::Result<(), alloc[49b8922c36ca62de]::string::String> as core[fa0eadad68403074]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/562dee4820c458d823175268e41601d4c060588a/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   27:     0x59a65c7940ab - test[7530e63dc052480e]::__rust_begin_short_backtrace::<core[fa0eadad68403074]::result::Result<(), alloc[49b8922c36ca62de]::string::String>, fn() -> core[fa0eadad68403074]::result::Result<(), alloc[49b8922c36ca62de]::string::String>>
[INFO] [stdout]                                at /rustc/562dee4820c458d823175268e41601d4c060588a/library/test/src/lib.rs:663:18
[INFO] [stdout]   28:     0x59a65c7a0a9b - test[7530e63dc052480e]::run_test_in_process::{closure#0}
[INFO] [stdout]                                at /rustc/562dee4820c458d823175268e41601d4c060588a/library/test/src/lib.rs:686:74
[INFO] [stdout]   29:     0x59a65c7a0a9b - <core[fa0eadad68403074]::panic::unwind_safe::AssertUnwindSafe<test[7530e63dc052480e]::run_test_in_process::{closure#0}> as core[fa0eadad68403074]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/562dee4820c458d823175268e41601d4c060588a/library/core/src/panic/unwind_safe.rs:275:9
[INFO] [stdout]   30:     0x59a65c7a0a9b - std[31e582c13f4e914f]::panicking::catch_unwind::do_call::<core[fa0eadad68403074]::panic::unwind_safe::AssertUnwindSafe<test[7530e63dc052480e]::run_test_in_process::{closure#0}>, core[fa0eadad68403074]::result::Result<(), alloc[49b8922c36ca62de]::string::String>>
[INFO] [stdout]                                at /rustc/562dee4820c458d823175268e41601d4c060588a/library/std/src/panicking.rs:581:40
[INFO] [stdout]   31:     0x59a65c7a0a9b - std[31e582c13f4e914f]::panicking::catch_unwind::<core[fa0eadad68403074]::result::Result<(), alloc[49b8922c36ca62de]::string::String>, core[fa0eadad68403074]::panic::unwind_safe::AssertUnwindSafe<test[7530e63dc052480e]::run_test_in_process::{closure#0}>>
[INFO] [stdout]                                at /rustc/562dee4820c458d823175268e41601d4c060588a/library/std/src/panicking.rs:544:19
[INFO] [stdout]   32:     0x59a65c7a0a9b - std[31e582c13f4e914f]::panic::catch_unwind::<core[fa0eadad68403074]::panic::unwind_safe::AssertUnwindSafe<test[7530e63dc052480e]::run_test_in_process::{closure#0}>, core[fa0eadad68403074]::result::Result<(), alloc[49b8922c36ca62de]::string::String>>
[INFO] [stdout]                                at /rustc/562dee4820c458d823175268e41601d4c060588a/library/std/src/panic.rs:359:14
[INFO] [stdout]   33:     0x59a65c7a0a9b - test[7530e63dc052480e]::run_test_in_process
[INFO] [stdout]                                at /rustc/562dee4820c458d823175268e41601d4c060588a/library/test/src/lib.rs:686:27
[INFO] [stdout]   34:     0x59a65c7a0a9b - test[7530e63dc052480e]::run_test::{closure#0}
[INFO] [stdout]                                at /rustc/562dee4820c458d823175268e41601d4c060588a/library/test/src/lib.rs:607:43
[INFO] [stdout]   35:     0x59a65c79aef4 - test[7530e63dc052480e]::run_test::{closure#1}
[INFO] [stdout]                                at /rustc/562dee4820c458d823175268e41601d4c060588a/library/test/src/lib.rs:637:41
[INFO] [stdout]   36:     0x59a65c79aef4 - std[31e582c13f4e914f]::sys::backtrace::__rust_begin_short_backtrace::<test[7530e63dc052480e]::run_test::{closure#1}, ()>
[INFO] [stdout]                                at /rustc/562dee4820c458d823175268e41601d4c060588a/library/std/src/sys/backtrace.rs:166:18
[INFO] [stdout]   37:     0x59a65c7a36a2 - std[31e582c13f4e914f]::thread::lifecycle::spawn_unchecked::<test[7530e63dc052480e]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}
[INFO] [stdout]                                at /rustc/562dee4820c458d823175268e41601d4c060588a/library/std/src/thread/lifecycle.rs:91:13
[INFO] [stdout]   38:     0x59a65c7a36a2 - <core[fa0eadad68403074]::panic::unwind_safe::AssertUnwindSafe<std[31e582c13f4e914f]::thread::lifecycle::spawn_unchecked<test[7530e63dc052480e]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}> as core[fa0eadad68403074]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/562dee4820c458d823175268e41601d4c060588a/library/core/src/panic/unwind_safe.rs:275:9
[INFO] [stdout]   39:     0x59a65c7a36a2 - std[31e582c13f4e914f]::panicking::catch_unwind::do_call::<core[fa0eadad68403074]::panic::unwind_safe::AssertUnwindSafe<std[31e582c13f4e914f]::thread::lifecycle::spawn_unchecked<test[7530e63dc052480e]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/562dee4820c458d823175268e41601d4c060588a/library/std/src/panicking.rs:581:40
[INFO] [stdout]   40:     0x59a65c7a36a2 - std[31e582c13f4e914f]::panicking::catch_unwind::<(), core[fa0eadad68403074]::panic::unwind_safe::AssertUnwindSafe<std[31e582c13f4e914f]::thread::lifecycle::spawn_unchecked<test[7530e63dc052480e]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>>
[INFO] [stdout]                                at /rustc/562dee4820c458d823175268e41601d4c060588a/library/std/src/panicking.rs:544:19
[INFO] [stdout]   41:     0x59a65c7a36a2 - std[31e582c13f4e914f]::panic::catch_unwind::<core[fa0eadad68403074]::panic::unwind_safe::AssertUnwindSafe<std[31e582c13f4e914f]::thread::lifecycle::spawn_unchecked<test[7530e63dc052480e]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/562dee4820c458d823175268e41601d4c060588a/library/std/src/panic.rs:359:14
[INFO] [stdout]   42:     0x59a65c7a36a2 - std[31e582c13f4e914f]::thread::lifecycle::spawn_unchecked::<test[7530e63dc052480e]::run_test::{closure#1}, ()>::{closure#1}
[INFO] [stdout]                                at /rustc/562dee4820c458d823175268e41601d4c060588a/library/std/src/thread/lifecycle.rs:89:26
[INFO] [stdout]   43:     0x59a65c7a36a2 - <std[31e582c13f4e914f]::thread::lifecycle::spawn_unchecked<test[7530e63dc052480e]::run_test::{closure#1}, ()>::{closure#1} as core[fa0eadad68403074]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]                                at /rustc/562dee4820c458d823175268e41601d4c060588a/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   44:     0x59a65c80a64f - <alloc[49b8922c36ca62de]::boxed::Box<dyn core[fa0eadad68403074]::ops::function::FnOnce<(), Output = ()> + core[fa0eadad68403074]::marker::Send> as core[fa0eadad68403074]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/562dee4820c458d823175268e41601d4c060588a/library/alloc/src/boxed.rs:2240:9
[INFO] [stdout]   45:     0x59a65c80a64f - <std[31e582c13f4e914f]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]                                at /rustc/562dee4820c458d823175268e41601d4c060588a/library/std/src/sys/thread/unix.rs:118:17
[INFO] [stdout]   46:     0x7ceb44508aa4 - <unknown>
[INFO] [stdout]   47:     0x7ceb44595a64 - clone
[INFO] [stdout]   48:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     tests::hmm
[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] running `Command { std: "docker" "inspect" "dd1d9ceb46ced98deb47c5ba16862abaa8f576a3f09e6d9620341461435e5d19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd1d9ceb46ced98deb47c5ba16862abaa8f576a3f09e6d9620341461435e5d19", kill_on_drop: false }`
[INFO] [stdout] dd1d9ceb46ced98deb47c5ba16862abaa8f576a3f09e6d9620341461435e5d19