[INFO] fetching crate tyfers 0.2.0...
[INFO] building tyfers-0.2.0 against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237-1
[INFO] extracting crate tyfers 0.2.0 into /workspace/builds/worker-7-tc2/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-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate tyfers 0.2.0 on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5d477e1b956558e00149cfbd04a2ffddb04265aa920a7ed668955f39261a9b6d
[INFO] running `Command { std: "docker" "start" "-a" "5d477e1b956558e00149cfbd04a2ffddb04265aa920a7ed668955f39261a9b6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5d477e1b956558e00149cfbd04a2ffddb04265aa920a7ed668955f39261a9b6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d477e1b956558e00149cfbd04a2ffddb04265aa920a7ed668955f39261a9b6d", kill_on_drop: false }`
[INFO] [stdout] 5d477e1b956558e00149cfbd04a2ffddb04265aa920a7ed668955f39261a9b6d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 229b90b302f31a4300a2ec4a54f447982e2d2b13c28ca768bf0384aca35b6f34
[INFO] running `Command { std: "docker" "start" "-a" "229b90b302f31a4300a2ec4a54f447982e2d2b13c28ca768bf0384aca35b6f34", 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 0.19s
[INFO] running `Command { std: "docker" "inspect" "229b90b302f31a4300a2ec4a54f447982e2d2b13c28ca768bf0384aca35b6f34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "229b90b302f31a4300a2ec4a54f447982e2d2b13c28ca768bf0384aca35b6f34", kill_on_drop: false }`
[INFO] [stdout] 229b90b302f31a4300a2ec4a54f447982e2d2b13c28ca768bf0384aca35b6f34
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bcc48392534d03e4df53fc3bbd6005b6c7b1232e4d3482bddd169a509e1de57c
[INFO] running `Command { std: "docker" "start" "-a" "bcc48392534d03e4df53fc3bbd6005b6c7b1232e4d3482bddd169a509e1de57c", 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] [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 0.44s
[INFO] running `Command { std: "docker" "inspect" "bcc48392534d03e4df53fc3bbd6005b6c7b1232e4d3482bddd169a509e1de57c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bcc48392534d03e4df53fc3bbd6005b6c7b1232e4d3482bddd169a509e1de57c", kill_on_drop: false }`
[INFO] [stdout] bcc48392534d03e4df53fc3bbd6005b6c7b1232e4d3482bddd169a509e1de57c