[INFO] cloning repository https://github.com/the-gorg/pixel-font
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/the-gorg/pixel-font" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthe-gorg%2Fpixel-font", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthe-gorg%2Fpixel-font'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7be0c4a22001d8c11e9516ca23855fb0a1950169
[INFO] checking the-gorg/pixel-font 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%2Fthe-gorg%2Fpixel-font" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/the-gorg/pixel-font
[INFO] finished tweaking git repo https://github.com/the-gorg/pixel-font
[INFO] tweaked toml for git repo https://github.com/the-gorg/pixel-font written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/the-gorg/pixel-font 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/the-gorg/pixel-font 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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 675f9dac2168fbcf098389588959a239541d970ca67796ab0781fcaf7a2324a1
[INFO] running `Command { std: "docker" "start" "-a" "675f9dac2168fbcf098389588959a239541d970ca67796ab0781fcaf7a2324a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "675f9dac2168fbcf098389588959a239541d970ca67796ab0781fcaf7a2324a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "675f9dac2168fbcf098389588959a239541d970ca67796ab0781fcaf7a2324a1", kill_on_drop: false }`
[INFO] [stdout] 675f9dac2168fbcf098389588959a239541d970ca67796ab0781fcaf7a2324a1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 1e1c84c5877be5b14fe550140105bfbfb75a4fe695efc2bd630c3a329322e617
[INFO] running `Command { std: "docker" "start" "-a" "1e1c84c5877be5b14fe550140105bfbfb75a4fe695efc2bd630c3a329322e617", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling libc v0.2.92
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]    Compiling syn v1.0.67
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling heck v0.3.2
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr]     Checking structopt v0.3.21
[INFO] [stderr]     Checking pixel-font v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:75:9
[INFO] [stdout]    |
[INFO] [stdout] 75 |     let mut text = opt.text;
[INFO] [stdout]    |         ----^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | /     #[structopt()]
[INFO] [stdout] 11 | |     text: 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: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | /     #[structopt(
[INFO] [stdout] 13 | |         short = "p",
[INFO] [stdout] 14 | |         long = "prefix",
[INFO] [stdout] 15 | |         help = "prefix each line with this character.",
[INFO] [stdout] 16 | |         default_value = ""
[INFO] [stdout] 17 | |     )]
[INFO] [stdout] 18 | |     prefix: String,
[INFO] [stdout]    | |__________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | /     #[structopt(
[INFO] [stdout] 20 | |         short = "o",
[INFO] [stdout] 21 | |         long = "output",
[INFO] [stdout] 22 | |         help = "output default font to json.",
[INFO] [stdout] 23 | |         default_value = ""
[INFO] [stdout] 24 | |     )]
[INFO] [stdout] 25 | |     output_filepath: String,
[INFO] [stdout]    | |___________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 | /     #[structopt(
[INFO] [stdout] 27 | |         short = "i",
[INFO] [stdout] 28 | |         long = "input",
[INFO] [stdout] 29 | |         help = "path to json font.",
[INFO] [stdout] 30 | |         default_value = ""
[INFO] [stdout] 31 | |     )]
[INFO] [stdout] 32 | |     input_filepath: String,
[INFO] [stdout]    | |__________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `pixel-font` (bin "pixel-font" test) due to 4 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:75:9
[INFO] [stdout]    |
[INFO] [stdout] 75 |     let mut text = opt.text;
[INFO] [stdout]    |         ----^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | /     #[structopt()]
[INFO] [stdout] 11 | |     text: 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: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | /     #[structopt(
[INFO] [stdout] 13 | |         short = "p",
[INFO] [stdout] 14 | |         long = "prefix",
[INFO] [stdout] 15 | |         help = "prefix each line with this character.",
[INFO] [stdout] 16 | |         default_value = ""
[INFO] [stdout] 17 | |     )]
[INFO] [stdout] 18 | |     prefix: String,
[INFO] [stdout]    | |__________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | /     #[structopt(
[INFO] [stdout] 20 | |         short = "o",
[INFO] [stdout] 21 | |         long = "output",
[INFO] [stdout] 22 | |         help = "output default font to json.",
[INFO] [stdout] 23 | |         default_value = ""
[INFO] [stdout] 24 | |     )]
[INFO] [stdout] 25 | |     output_filepath: String,
[INFO] [stdout]    | |___________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/main.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 | /     #[structopt(
[INFO] [stdout] 27 | |         short = "i",
[INFO] [stdout] 28 | |         long = "input",
[INFO] [stdout] 29 | |         help = "path to json font.",
[INFO] [stdout] 30 | |         default_value = ""
[INFO] [stdout] 31 | |     )]
[INFO] [stdout] 32 | |     input_filepath: String,
[INFO] [stdout]    | |__________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `pixel-font` (bin "pixel-font") due to 4 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "1e1c84c5877be5b14fe550140105bfbfb75a4fe695efc2bd630c3a329322e617", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e1c84c5877be5b14fe550140105bfbfb75a4fe695efc2bd630c3a329322e617", kill_on_drop: false }`
[INFO] [stdout] 1e1c84c5877be5b14fe550140105bfbfb75a4fe695efc2bd630c3a329322e617
