[INFO] fetching crate tyfers 0.2.0...
[INFO] testing tyfers-0.2.0 against beta-2024-12-08 for beta-1.84.0-4-retry
[INFO] extracting crate tyfers 0.2.0 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate tyfers 0.2.0 on toolchain beta-2024-12-08
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2024-12-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-0-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2024-12-08" "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" "+beta-2024-12-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-12-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4bb60a88801c0b3f2d280dac588dd4dffa85275f72bbfc72afb3716562e9abc1
[INFO] running `Command { std: "docker" "start" "-a" "4bb60a88801c0b3f2d280dac588dd4dffa85275f72bbfc72afb3716562e9abc1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4bb60a88801c0b3f2d280dac588dd4dffa85275f72bbfc72afb3716562e9abc1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4bb60a88801c0b3f2d280dac588dd4dffa85275f72bbfc72afb3716562e9abc1", kill_on_drop: false }`
[INFO] [stdout] 4bb60a88801c0b3f2d280dac588dd4dffa85275f72bbfc72afb3716562e9abc1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-12-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b20ef531c255ade2d9401899dcd0f44940d14df451afb3c031354605886f0789
[INFO] running `Command { std: "docker" "start" "-a" "b20ef531c255ade2d9401899dcd0f44940d14df451afb3c031354605886f0789", 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)]` 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)]` 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" "b20ef531c255ade2d9401899dcd0f44940d14df451afb3c031354605886f0789", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b20ef531c255ade2d9401899dcd0f44940d14df451afb3c031354605886f0789", kill_on_drop: false }`
[INFO] [stdout] b20ef531c255ade2d9401899dcd0f44940d14df451afb3c031354605886f0789
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-12-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a921a041d486a04ad5e6985b9cf4d9b5591c1497deb0812d0a50c87524a64ecc
[INFO] running `Command { std: "docker" "start" "-a" "a921a041d486a04ad5e6985b9cf4d9b5591c1497deb0812d0a50c87524a64ecc", 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)]` 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)]` 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)]` 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)]` 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)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.66s
[INFO] running `Command { std: "docker" "inspect" "a921a041d486a04ad5e6985b9cf4d9b5591c1497deb0812d0a50c87524a64ecc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a921a041d486a04ad5e6985b9cf4d9b5591c1497deb0812d0a50c87524a64ecc", kill_on_drop: false }`
[INFO] [stdout] a921a041d486a04ad5e6985b9cf4d9b5591c1497deb0812d0a50c87524a64ecc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-12-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 10eb837c143fa0c888f8a9ec1daa641775ee3cdb995faca349bdf88f10af4d1f
[INFO] running `Command { std: "docker" "start" "-a" "10eb837c143fa0c888f8a9ec1daa641775ee3cdb995faca349bdf88f10af4d1f", 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)]` 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)]` 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)]` 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)]` 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 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/tyfers-04cc8d6604f58ba3)
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::hmm ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- tests::hmm stdout ----
[INFO] [stdout] thread 'tests::hmm' 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:     0x594d54651d3a - std::backtrace_rs::backtrace::libunwind::trace::h8810477743020387
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/../../backtrace/src/backtrace/libunwind.rs:116:5
[INFO] [stdout]    1:     0x594d54651d3a - std::backtrace_rs::backtrace::trace_unsynchronized::h3aa55355dd6c54a6
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x594d54651d3a - std::sys::backtrace::_print_fmt::h8588b0f62410823f
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x594d54651d3a - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h98c26ac25ffe89bb
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x594d546777a3 - core::fmt::rt::Argument::fmt::hf95377f4aebd453b
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/fmt/rt.rs:177:76
[INFO] [stdout]    5:     0x594d546777a3 - core::fmt::write::h0dd5f6e2238c7982
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/fmt/mod.rs:1189:21
[INFO] [stdout]    6:     0x594d5464ee13 - std::io::Write::write_fmt::h03bb0ca26e6faf8c
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/io/mod.rs:1884:15
[INFO] [stdout]    7:     0x594d54651b82 - std::sys::backtrace::BacktraceLock::print::h5c19c1c038ee186d
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    8:     0x594d546531bd - std::panicking::default_hook::{{closure}}::h77172f079a1fcb13
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:268:22
[INFO] [stdout]    9:     0x594d54652fc7 - std::panicking::default_hook::he5f8e3b203ccddba
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:292:9
[INFO] [stdout]   10:     0x594d5461c147 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h7a3c7b4a1ae77f2f
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/alloc/src/boxed.rs:1986:9
[INFO] [stdout]   11:     0x594d5461c147 - test::test_main::{{closure}}::hf0d3b69ae9b353d1
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/test/src/lib.rs:134:21
[INFO] [stdout]   12:     0x594d54653868 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h6332e82e7b189abd
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/alloc/src/boxed.rs:1986:9
[INFO] [stdout]   13:     0x594d54653868 - std::panicking::rust_panic_with_hook::h53863d4e9018df39
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:809:13
[INFO] [stdout]   14:     0x594d5465362a - std::panicking::begin_panic_handler::{{closure}}::h67280e6fa0757873
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:674:13
[INFO] [stdout]   15:     0x594d54652219 - std::sys::backtrace::__rust_end_short_backtrace::h1dac3f54d6fbbeb2
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/sys/backtrace.rs:170:18
[INFO] [stdout]   16:     0x594d546532bc - rust_begin_unwind
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:665:5
[INFO] [stdout]   17:     0x594d545daa90 - core::panicking::panic_fmt::h6792bd1b2bf01041
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/panicking.rs:76:14
[INFO] [stdout]   18:     0x594d545daed6 - core::result::unwrap_failed::h05e0602ed34287c5
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/result.rs:1699:5
[INFO] [stdout]   19:     0x594d545e09b5 - core::result::Result<T,E>::unwrap::h9390f30b79d7b3d6
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/result.rs:1104:23
[INFO] [stdout]   20:     0x594d545e09b5 - tyfers::Tyfe::what_is_this::hd05893a3608519c0
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:150:20
[INFO] [stdout]   21:     0x594d545e082c - tyfers::Tyfe::check::h784fc07f5663174d
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:143:17
[INFO] [stdout]   22:     0x594d545e267c - tyfers::tests::hmm::h42d072b0e3b4f26f
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:231:34
[INFO] [stdout]   23:     0x594d545e22f7 - tyfers::tests::hmm::{{closure}}::had2ce6f2ebdaee13
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:217:13
[INFO] [stdout]   24:     0x594d545dcbc6 - core::ops::function::FnOnce::call_once::h191524228aa23d8a
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   25:     0x594d54620c6b - core::ops::function::FnOnce::call_once::h871bf86719ec9aa4
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   26:     0x594d54620c6b - test::__rust_begin_short_backtrace::h2167df1e2b7d76fd
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/test/src/lib.rs:632:18
[INFO] [stdout]   27:     0x594d54620658 - test::run_test_in_process::{{closure}}::h15d92f75a3adfb79
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/test/src/lib.rs:655:60
[INFO] [stdout]   28:     0x594d54620658 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hb6c8955835a8dbbb
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   29:     0x594d54620658 - std::panicking::try::do_call::hc79d0fc888a0bd30
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:557:40
[INFO] [stdout]   30:     0x594d54620658 - std::panicking::try::hb8a7878e3a8589d6
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:520:19
[INFO] [stdout]   31:     0x594d54620658 - std::panic::catch_unwind::hb8e4600ff0ff5cfa
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panic.rs:358:14
[INFO] [stdout]   32:     0x594d54620658 - test::run_test_in_process::hc2900b0b18688dd6
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/test/src/lib.rs:655:27
[INFO] [stdout]   33:     0x594d54620658 - test::run_test::{{closure}}::hac2a9cb07be3d48d
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/test/src/lib.rs:576:43
[INFO] [stdout]   34:     0x594d545e40fa - test::run_test::{{closure}}::h4a5b729e66a38cd8
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/test/src/lib.rs:606:41
[INFO] [stdout]   35:     0x594d545e40fa - std::sys::backtrace::__rust_begin_short_backtrace::h0496fb742492f573
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/sys/backtrace.rs:154:18
[INFO] [stdout]   36:     0x594d545e7a74 - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::hbb6d257c550a54bd
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/thread/mod.rs:561:17
[INFO] [stdout]   37:     0x594d545e7a74 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h46696fe4a6832328
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   38:     0x594d545e7a74 - std::panicking::try::do_call::h2625a51b667bfb64
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:557:40
[INFO] [stdout]   39:     0x594d545e7a74 - std::panicking::try::hb956a59a1973aa4c
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:520:19
[INFO] [stdout]   40:     0x594d545e7a74 - std::panic::catch_unwind::h64f3b9d1067ef6a0
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panic.rs:358:14
[INFO] [stdout]   41:     0x594d545e7a74 - std::thread::Builder::spawn_unchecked_::{{closure}}::h42b2841295b6c0b2
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/thread/mod.rs:559:30
[INFO] [stdout]   42:     0x594d545e7a74 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h6127de71b8124639
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   43:     0x594d546577ab - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h42f0ba71002a1b2c
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/alloc/src/boxed.rs:1972:9
[INFO] [stdout]   44:     0x594d546577ab - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::had9e47d7a3dcecb8
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/alloc/src/boxed.rs:1972:9
[INFO] [stdout]   45:     0x594d546577ab - std::sys::pal::unix::thread::Thread::new::thread_start::h48cf765408f6f5f2
[INFO] [stdout]                                at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/sys/pal/unix/thread.rs:105:17
[INFO] [stdout]   46:     0x77d7727c6ac3 - <unknown>
[INFO] [stdout]   47:     0x77d772857a04 - 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 0.04s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] running `Command { std: "docker" "inspect" "10eb837c143fa0c888f8a9ec1daa641775ee3cdb995faca349bdf88f10af4d1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10eb837c143fa0c888f8a9ec1daa641775ee3cdb995faca349bdf88f10af4d1f", kill_on_drop: false }`
[INFO] [stdout] 10eb837c143fa0c888f8a9ec1daa641775ee3cdb995faca349bdf88f10af4d1f
