[INFO] cloning repository https://github.com/jacobrosenthal/uf2-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jacobrosenthal/uf2-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjacobrosenthal%2Fuf2-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjacobrosenthal%2Fuf2-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a79900154438b6d8aad63fb77c48249735716489
[INFO] checking jacobrosenthal/uf2-rs 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%2Fjacobrosenthal%2Fuf2-rs" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/jacobrosenthal/uf2-rs
[INFO] finished tweaking git repo https://github.com/jacobrosenthal/uf2-rs
[INFO] tweaked toml for git repo https://github.com/jacobrosenthal/uf2-rs written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/jacobrosenthal/uf2-rs 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 103 packages to latest compatible versions
[INFO] [stderr]       Adding cargo-project v0.2.7 (available: v0.3.0)
[INFO] [stderr]       Adding colored v2.2.0 (available: v3.0.0)
[INFO] [stderr]       Adding goblin v0.2.3 (available: v0.10.3)
[INFO] [stderr]       Adding hidapi v1.5.0 (available: v2.6.3)
[INFO] [stderr]       Adding pretty_env_logger v0.3.1 (available: v0.5.0)
[INFO] [stderr]       Adding pretty_env_logger v0.4.0 (available: v0.5.0)
[INFO] [stderr]       Adding scroll v0.10.2 (available: v0.13.0)
[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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 46370f75f54d66f454a3f8b24366c845e158a00f54e3641ffa26ad082ae98a81
[INFO] running `Command { std: "docker" "start" "-a" "46370f75f54d66f454a3f8b24366c845e158a00f54e3641ffa26ad082ae98a81", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "46370f75f54d66f454a3f8b24366c845e158a00f54e3641ffa26ad082ae98a81", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46370f75f54d66f454a3f8b24366c845e158a00f54e3641ffa26ad082ae98a81", kill_on_drop: false }`
[INFO] [stdout] 46370f75f54d66f454a3f8b24366c845e158a00f54e3641ffa26ad082ae98a81
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 1bf3ff4bf50f5e4f84b5f2404fe996c5c804e7d4be2a5375ea5309d682e0770b
[INFO] running `Command { std: "docker" "start" "-a" "1bf3ff4bf50f5e4f84b5f2404fe996c5c804e7d4be2a5375ea5309d682e0770b", kill_on_drop: false }`
[INFO] [stderr]     Checking log v0.4.28
[INFO] [stderr]    Compiling find-msvc-tools v0.1.4
[INFO] [stderr]     Checking regex-syntax v0.8.8
[INFO] [stderr]    Compiling object v0.37.3
[INFO] [stderr]     Checking aho-corasick v1.1.4
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking gimli v0.32.3
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking miniz_oxide v0.8.9
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]     Checking maplit v1.0.2
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]    Compiling cc v1.2.45
[INFO] [stderr]     Checking crc-any v2.5.0
[INFO] [stderr]     Checking rustc-demangle v0.1.26
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]    Compiling syn v2.0.110
[INFO] [stderr]     Checking glob v0.3.3
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[INFO] [stderr]     Checking toml v0.4.10
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[INFO] [stderr]     Checking regex-automata v0.4.13
[INFO] [stderr]     Checking addr2line v0.25.1
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]     Checking regex v1.12.2
[INFO] [stderr]    Compiling scroll_derive v0.10.5
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]     Checking env_logger v0.6.2
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[INFO] [stderr]     Checking backtrace v0.3.76
[INFO] [stderr]     Checking pretty_env_logger v0.4.0
[INFO] [stderr]     Checking pretty_env_logger v0.3.1
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking scroll v0.10.2
[INFO] [stderr]     Checking rustc-cfg v0.4.0
[INFO] [stderr]     Checking goblin v0.2.3
[INFO] [stderr]     Checking structopt v0.3.26
[INFO] [stderr]     Checking cargo-project v0.2.7
[INFO] [stderr]     Checking hf2 v0.3.3 (/opt/rustwide/workdir/hf2)
[INFO] [stderr]     Checking hf2-cli v0.3.3 (/opt/rustwide/workdir/hf2-cli)
[INFO] [stderr]     Checking cargo-hf2 v0.3.3 (/opt/rustwide/workdir/cargo-hf2)
[INFO] [stderr] error: could not compile `hf2-cli` (bin "hf2" test) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]    --> hf2-cli/src/main.rs:140:9
[INFO] [stdout]     |
[INFO] [stdout] 140 | /         #[structopt(short = "f", name = "file", long = "file")]
[INFO] [stdout] 141 | |         file: PathBuf,
[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<PathBuf, Infallible>
[INFO] [stdout]    --> hf2-cli/src/main.rs:148:9
[INFO] [stdout]     |
[INFO] [stdout] 148 | /         #[structopt(short = "f", name = "file", long = "file")]
[INFO] [stdout] 149 | |         file: PathBuf,
[INFO] [stdout]     | |_____________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `package`, `manifest_path`, `no_default_features`, `all_features`, and `features` are never read
[INFO] [stdout]    --> cargo-hf2/src/main.rs:158:5
[INFO] [stdout]     |
[INFO] [stdout] 151 | struct Opt {
[INFO] [stdout]     |        --- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 158 |     package: Option<String>,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 164 |     manifest_path: Option<PathBuf>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^
[INFO] [stdout] 165 |     #[structopt(long)]
[INFO] [stdout] 166 |     no_default_features: bool,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 167 |     #[structopt(long)]
[INFO] [stdout] 168 |     all_features: bool,
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout] 169 |     #[structopt(long)]
[INFO] [stdout] 170 |     features: Vec<String>,
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Opt` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> cargo-hf2/src/main.rs:153:5
[INFO] [stdout]     |
[INFO] [stdout] 153 | /     #[structopt(name = "binary", long = "bin")]
[INFO] [stdout] 154 | |     bin: Option<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<String, Infallible>
[INFO] [stdout]    --> cargo-hf2/src/main.rs:155:5
[INFO] [stdout]     |
[INFO] [stdout] 155 | /     #[structopt(name = "example", long = "example")]
[INFO] [stdout] 156 | |     example: Option<String>,
[INFO] [stdout]     | |___________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> cargo-hf2/src/main.rs:157:5
[INFO] [stdout]     |
[INFO] [stdout] 157 | /     #[structopt(name = "package", short = "p", long = "package")]
[INFO] [stdout] 158 | |     package: Option<String>,
[INFO] [stdout]     | |___________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> cargo-hf2/src/main.rs:161:5
[INFO] [stdout]     |
[INFO] [stdout] 161 | /     #[structopt(name = "target", long = "target")]
[INFO] [stdout] 162 | |     target: Option<String>,
[INFO] [stdout]     | |__________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> cargo-hf2/src/main.rs:169:5
[INFO] [stdout]     |
[INFO] [stdout] 169 | /     #[structopt(long)]
[INFO] [stdout] 170 | |     features: Vec<String>,
[INFO] [stdout]     | |_________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]    --> hf2-cli/src/main.rs:140:9
[INFO] [stdout]     |
[INFO] [stdout] 140 | /         #[structopt(short = "f", name = "file", long = "file")]
[INFO] [stdout] 141 | |         file: PathBuf,
[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<PathBuf, Infallible>
[INFO] [stdout]    --> hf2-cli/src/main.rs:148:9
[INFO] [stdout]     |
[INFO] [stdout] 148 | /         #[structopt(short = "f", name = "file", long = "file")]
[INFO] [stdout] 149 | |         file: PathBuf,
[INFO] [stdout]     | |_____________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cargo-hf2` (bin "cargo-hf2") due to 5 previous errors; 1 warning emitted
[INFO] [stdout] warning: fields `package`, `manifest_path`, `no_default_features`, `all_features`, and `features` are never read
[INFO] [stdout]    --> cargo-hf2/src/main.rs:158:5
[INFO] [stdout]     |
[INFO] [stdout] 151 | struct Opt {
[INFO] [stdout]     |        --- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 158 |     package: Option<String>,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 164 |     manifest_path: Option<PathBuf>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^
[INFO] [stdout] 165 |     #[structopt(long)]
[INFO] [stdout] 166 |     no_default_features: bool,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 167 |     #[structopt(long)]
[INFO] [stdout] 168 |     all_features: bool,
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout] 169 |     #[structopt(long)]
[INFO] [stdout] 170 |     features: Vec<String>,
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Opt` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> cargo-hf2/src/main.rs:153:5
[INFO] [stdout]     |
[INFO] [stdout] 153 | /     #[structopt(name = "binary", long = "bin")]
[INFO] [stdout] 154 | |     bin: Option<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<String, Infallible>
[INFO] [stdout]    --> cargo-hf2/src/main.rs:155:5
[INFO] [stdout]     |
[INFO] [stdout] 155 | /     #[structopt(name = "example", long = "example")]
[INFO] [stdout] 156 | |     example: Option<String>,
[INFO] [stdout]     | |___________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> cargo-hf2/src/main.rs:157:5
[INFO] [stdout]     |
[INFO] [stdout] 157 | /     #[structopt(name = "package", short = "p", long = "package")]
[INFO] [stdout] 158 | |     package: Option<String>,
[INFO] [stdout]     | |___________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> cargo-hf2/src/main.rs:161:5
[INFO] [stdout]     |
[INFO] [stdout] 161 | /     #[structopt(name = "target", long = "target")]
[INFO] [stdout] 162 | |     target: Option<String>,
[INFO] [stdout]     | |__________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> cargo-hf2/src/main.rs:169:5
[INFO] [stdout]     |
[INFO] [stdout] 169 | /     #[structopt(long)]
[INFO] [stdout] 170 | |     features: Vec<String>,
[INFO] [stdout]     | |_________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `hf2-cli` (bin "hf2") due to 2 previous errors
[INFO] [stderr] error: could not compile `cargo-hf2` (bin "cargo-hf2" test) due to 5 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "1bf3ff4bf50f5e4f84b5f2404fe996c5c804e7d4be2a5375ea5309d682e0770b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1bf3ff4bf50f5e4f84b5f2404fe996c5c804e7d4be2a5375ea5309d682e0770b", kill_on_drop: false }`
[INFO] [stdout] 1bf3ff4bf50f5e4f84b5f2404fe996c5c804e7d4be2a5375ea5309d682e0770b
