[INFO] cloning repository https://github.com/sntwr/pngme
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sntwr/pngme" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsntwr%2Fpngme", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsntwr%2Fpngme'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9df90ac81f73d6e9470ae0145271ba03938af155
[INFO] checking sntwr/pngme against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsntwr%2Fpngme" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/sntwr/pngme
[INFO] finished tweaking git repo https://github.com/sntwr/pngme
[INFO] tweaked toml for git repo https://github.com/sntwr/pngme written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/sntwr/pngme on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/sntwr/pngme already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 35a6a299fa1b91271b3fe101dd5405fb2351a9e797808ad2a4694bc5fa8e3211
[INFO] running `Command { std: "docker" "start" "-a" "35a6a299fa1b91271b3fe101dd5405fb2351a9e797808ad2a4694bc5fa8e3211", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "35a6a299fa1b91271b3fe101dd5405fb2351a9e797808ad2a4694bc5fa8e3211", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "35a6a299fa1b91271b3fe101dd5405fb2351a9e797808ad2a4694bc5fa8e3211", kill_on_drop: false }`
[INFO] [stdout] 35a6a299fa1b91271b3fe101dd5405fb2351a9e797808ad2a4694bc5fa8e3211
[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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5edcf97fc58f4f6c50d500499f18abd5f2bf12501f28fcaa904599d6309977ca
[INFO] running `Command { std: "docker" "start" "-a" "5edcf97fc58f4f6c50d500499f18abd5f2bf12501f28fcaa904599d6309977ca", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.37
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]    Compiling libc v0.2.123
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]     Checking os_str_bytes v6.0.0
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]     Checking termcolor v1.1.3
[INFO] [stderr]     Checking crc-catalog v1.1.1
[INFO] [stderr]     Checking textwrap v0.15.0
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]    Compiling indexmap v1.8.1
[INFO] [stderr]     Checking crc v2.1.0
[INFO] [stderr]     Checking clap_lex v0.1.1
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling clap_derive v3.1.7
[INFO] [stderr]     Checking clap v3.1.9
[INFO] [stderr]     Checking pngme v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/args.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 41 | /     /// Path to the input PNG file
[INFO] [stdout] 42 | |     pub input_file_path: String,
[INFO] [stdout]    | |_______________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/args.rs:43:5
[INFO] [stdout]    |
[INFO] [stdout] 43 | /     /// Four byte valid ASCII string for chunk type
[INFO] [stdout] 44 | |     pub chunk_type_str: String,
[INFO] [stdout]    | |______________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/args.rs:45:5
[INFO] [stdout]    |
[INFO] [stdout] 45 | /     /// A UTF-8 message string
[INFO] [stdout] 46 | |     pub message: String,
[INFO] [stdout]    | |_______________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/args.rs:47:5
[INFO] [stdout]    |
[INFO] [stdout] 47 | /     /// Path to the output PNG file. If not specified, input file is used
[INFO] [stdout] 48 | |     pub output_file_path: Option<String>,
[INFO] [stdout]    | |________________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/args.rs:53:5
[INFO] [stdout]    |
[INFO] [stdout] 53 | /     /// Path to the input PNG file
[INFO] [stdout] 54 | |     pub input_file_path: String,
[INFO] [stdout]    | |_______________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/args.rs:55:5
[INFO] [stdout]    |
[INFO] [stdout] 55 | /     /// Four byte valid ASCII string for chunk type
[INFO] [stdout] 56 | |     pub chunk_type_str: String,
[INFO] [stdout]    | |______________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/args.rs:61:5
[INFO] [stdout]    |
[INFO] [stdout] 61 | /     /// Path to the input PNG file
[INFO] [stdout] 62 | |     pub input_file_path: String,
[INFO] [stdout]    | |_______________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/args.rs:63:5
[INFO] [stdout]    |
[INFO] [stdout] 63 | /     /// Four byte valid ASCII string for chunk type
[INFO] [stdout] 64 | |     pub chunk_type_str: String,
[INFO] [stdout]    | |______________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/args.rs:69:5
[INFO] [stdout]    |
[INFO] [stdout] 69 | /     /// Path to the input PNG file
[INFO] [stdout] 70 | |     pub input_file_path: String,
[INFO] [stdout]    | |_______________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `pngme` (bin "pngme") due to 9 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/args.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 41 | /     /// Path to the input PNG file
[INFO] [stdout] 42 | |     pub input_file_path: String,
[INFO] [stdout]    | |_______________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/args.rs:43:5
[INFO] [stdout]    |
[INFO] [stdout] 43 | /     /// Four byte valid ASCII string for chunk type
[INFO] [stdout] 44 | |     pub chunk_type_str: String,
[INFO] [stdout]    | |______________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/args.rs:45:5
[INFO] [stdout]    |
[INFO] [stdout] 45 | /     /// A UTF-8 message string
[INFO] [stdout] 46 | |     pub message: String,
[INFO] [stdout]    | |_______________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/args.rs:47:5
[INFO] [stdout]    |
[INFO] [stdout] 47 | /     /// Path to the output PNG file. If not specified, input file is used
[INFO] [stdout] 48 | |     pub output_file_path: Option<String>,
[INFO] [stdout]    | |________________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/args.rs:53:5
[INFO] [stdout]    |
[INFO] [stdout] 53 | /     /// Path to the input PNG file
[INFO] [stdout] 54 | |     pub input_file_path: String,
[INFO] [stdout]    | |_______________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/args.rs:55:5
[INFO] [stdout]    |
[INFO] [stdout] 55 | /     /// Four byte valid ASCII string for chunk type
[INFO] [stdout] 56 | |     pub chunk_type_str: String,
[INFO] [stdout]    | |______________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/args.rs:61:5
[INFO] [stdout]    |
[INFO] [stdout] 61 | /     /// Path to the input PNG file
[INFO] [stdout] 62 | |     pub input_file_path: String,
[INFO] [stdout]    | |_______________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/args.rs:63:5
[INFO] [stdout]    |
[INFO] [stdout] 63 | /     /// Four byte valid ASCII string for chunk type
[INFO] [stdout] 64 | |     pub chunk_type_str: String,
[INFO] [stdout]    | |______________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/args.rs:69:5
[INFO] [stdout]    |
[INFO] [stdout] 69 | /     /// Path to the input PNG file
[INFO] [stdout] 70 | |     pub input_file_path: String,
[INFO] [stdout]    | |_______________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `pngme` (bin "pngme" test) due to 9 previous errors
[INFO] running `Command { std: "docker" "inspect" "5edcf97fc58f4f6c50d500499f18abd5f2bf12501f28fcaa904599d6309977ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5edcf97fc58f4f6c50d500499f18abd5f2bf12501f28fcaa904599d6309977ca", kill_on_drop: false }`
[INFO] [stdout] 5edcf97fc58f4f6c50d500499f18abd5f2bf12501f28fcaa904599d6309977ca