[INFO] cloning repository https://github.com/cbiffle/uf2l
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cbiffle/uf2l" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcbiffle%2Fuf2l", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcbiffle%2Fuf2l'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c983c9931a0170fbffa491f1207a74a1e532ba1a
[INFO] checking cbiffle/uf2l 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%2Fcbiffle%2Fuf2l" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/cbiffle/uf2l
[INFO] finished tweaking git repo https://github.com/cbiffle/uf2l
[INFO] tweaked toml for git repo https://github.com/cbiffle/uf2l written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/cbiffle/uf2l 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/cbiffle/uf2l 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking cbiffle/uf2l 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%2Fcbiffle%2Fuf2l" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/cbiffle/uf2l
[INFO] finished tweaking git repo https://github.com/cbiffle/uf2l
[INFO] tweaked toml for git repo https://github.com/cbiffle/uf2l written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/cbiffle/uf2l 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/cbiffle/uf2l 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking cbiffle/uf2l 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%2Fcbiffle%2Fuf2l" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/cbiffle/uf2l
[INFO] finished tweaking git repo https://github.com/cbiffle/uf2l
[INFO] tweaked toml for git repo https://github.com/cbiffle/uf2l written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/cbiffle/uf2l 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/cbiffle/uf2l 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded scroll_derive v0.11.0
[INFO] [stderr]   Downloaded proc-macro2 v1.0.38
[INFO] [stderr]   Downloaded zerocopy v0.6.1
[INFO] [stderr]   Downloaded ryu v1.0.10
[INFO] [stderr]   Downloaded clap_derive v3.1.18
[INFO] [stderr]   Downloaded clap_lex v0.2.0
[INFO] [stderr]   Downloaded serde_derive v1.0.137
[INFO] [stderr]   Downloaded sysinfo v0.23.12
[INFO] [stderr]   Downloaded goblin v0.5.1
[INFO] [stderr]   Downloaded clap v3.1.18
[INFO] [stderr]   Downloaded syn v1.0.93
[INFO] [stderr]   Downloaded zerocopy-derive v0.3.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] f9ef4cf7ecb201695a9df4de5c78b9634bad8ffdcdfa74e754a85d68d03855d5
[INFO] running `Command { std: "docker" "start" "-a" "f9ef4cf7ecb201695a9df4de5c78b9634bad8ffdcdfa74e754a85d68d03855d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f9ef4cf7ecb201695a9df4de5c78b9634bad8ffdcdfa74e754a85d68d03855d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9ef4cf7ecb201695a9df4de5c78b9634bad8ffdcdfa74e754a85d68d03855d5", kill_on_drop: false }`
[INFO] [stdout] f9ef4cf7ecb201695a9df4de5c78b9634bad8ffdcdfa74e754a85d68d03855d5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 7bafd33fe44347cb43ad8b5abc2a045ce9233dfbafd63bc48079af0febd8e43b
[INFO] running `Command { std: "docker" "start" "-a" "7bafd33fe44347cb43ad8b5abc2a045ce9233dfbafd63bc48079af0febd8e43b", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.38
[INFO] [stderr]    Compiling unicode-xid v0.2.3
[INFO] [stderr]    Compiling syn v1.0.93
[INFO] [stderr]    Compiling crossbeam-utils v0.8.8
[INFO] [stderr]    Compiling libc v0.2.125
[INFO] [stderr]    Compiling serde_derive v1.0.137
[INFO] [stderr]    Compiling serde v1.0.137
[INFO] [stderr]    Compiling rayon-core v1.9.3
[INFO] [stderr]    Compiling serde_json v1.0.81
[INFO] [stderr]    Compiling itoa v1.0.2
[INFO] [stderr]    Compiling ryu v1.0.10
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.8
[INFO] [stderr]    Compiling rayon v1.5.3
[INFO] [stderr]    Compiling indexmap v1.8.1
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]    Compiling sysinfo v0.23.12
[INFO] [stderr]    Compiling anyhow v1.0.57
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]     Checking os_str_bytes v6.0.0
[INFO] [stderr]     Checking textwrap v0.15.0
[INFO] [stderr]     Checking once_cell v1.11.0
[INFO] [stderr]     Checking plain v0.2.3
[INFO] [stderr]     Checking termcolor v1.1.3
[INFO] [stderr]     Checking clap_lex v0.2.0
[INFO] [stderr]     Checking crossbeam-channel v0.5.4
[INFO] [stderr]     Checking crossbeam-deque v0.8.1
[INFO] [stderr]     Checking num_cpus v1.13.1
[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 synstructure v0.12.6
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling scroll_derive v0.11.0
[INFO] [stderr]    Compiling clap_derive v3.1.18
[INFO] [stderr]    Compiling zerocopy-derive v0.3.1
[INFO] [stderr]     Checking scroll v0.11.0
[INFO] [stderr]     Checking zerocopy v0.6.1
[INFO] [stderr]     Checking goblin v0.5.1
[INFO] [stderr]     Checking clap v3.1.18
[INFO] [stderr]    Compiling uf2l v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `global`
[INFO] [stdout]    --> src/main.rs:643:5
[INFO] [stdout]     |
[INFO] [stdout] 643 |     global: &GlobalFlags,
[INFO] [stdout]     |     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_global`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `global`
[INFO] [stdout]    --> src/main.rs:643:5
[INFO] [stdout]     |
[INFO] [stdout] 643 |     global: &GlobalFlags,
[INFO] [stdout]     |     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_global`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]    --> src/main.rs:130:5
[INFO] [stdout]     |
[INFO] [stdout] 130 | /     /// Paths to one or more ELF files to combine into a UF2 image. Files must
[INFO] [stdout] 131 | |     /// not overlap.
[INFO] [stdout] 132 | |     #[clap(required = true)]
[INFO] [stdout] 133 | |     inputs: Vec<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]    --> src/main.rs:135:5
[INFO] [stdout]     |
[INFO] [stdout] 135 | /     /// Path for UF2 output.
[INFO] [stdout] 136 | |     output: PathBuf,
[INFO] [stdout]     | |___________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]    --> src/main.rs:166:5
[INFO] [stdout]     |
[INFO] [stdout] 166 | /     /// Paths to one or more ELF files to combine into a UF2 image. Files must
[INFO] [stdout] 167 | |     /// not overlap.
[INFO] [stdout] 168 | |     #[clap(required = true)]
[INFO] [stdout] 169 | |     inputs: Vec<PathBuf>,
[INFO] [stdout]     | |________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]    --> src/main.rs:444:5
[INFO] [stdout]     |
[INFO] [stdout] 444 | /     /// Path to a UF2 file to analyze.
[INFO] [stdout] 445 | |     input: PathBuf,
[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:702:5
[INFO] [stdout]     |
[INFO] [stdout] 702 | /     /// CPU type to search for when enumerating UF2 bootloaders. This will be
[INFO] [stdout] 703 | |     /// used to match the first component of the `Board-Id` line of an
[INFO] [stdout] 704 | |     /// `INFO_UF2.TXT` file. If omitted, any CPU type will be accepted.
[INFO] [stdout] 705 | |     #[clap(long)]
[INFO] [stdout] 706 | |     cpu: Option<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:707:5
[INFO] [stdout]     |
[INFO] [stdout] 707 | /     /// Board type to search for when enumerating UF2 bootloaders. This will be
[INFO] [stdout] 708 | |     /// used to match the second component of the `Board-Id` line of an
[INFO] [stdout] 709 | |     /// `INFO_UF2.TXT` file. If omitted, any board will be accepted.
[INFO] [stdout] 710 | |     #[clap(long)]
[INFO] [stdout] 711 | |     board: Option<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:712:5
[INFO] [stdout]     |
[INFO] [stdout] 712 | /     /// Board revision to search for when enumerating UF2 bootloaders. This will
[INFO] [stdout] 713 | |     /// be used to match the third component of the `Board-Id` line of an
[INFO] [stdout] 714 | |     /// `INFO_UF2.TXT` file. If omitted, any board revision will be accepted.
[INFO] [stdout] 715 | |     #[clap(long)]
[INFO] [stdout] 716 | |     revision: Option<String>,
[INFO] [stdout]     | |____________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]    --> src/main.rs:130:5
[INFO] [stdout]     |
[INFO] [stdout] 130 | /     /// Paths to one or more ELF files to combine into a UF2 image. Files must
[INFO] [stdout] 131 | |     /// not overlap.
[INFO] [stdout] 132 | |     #[clap(required = true)]
[INFO] [stdout] 133 | |     inputs: Vec<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]    --> src/main.rs:135:5
[INFO] [stdout]     |
[INFO] [stdout] 135 | /     /// Path for UF2 output.
[INFO] [stdout] 136 | |     output: PathBuf,
[INFO] [stdout]     | |___________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]    --> src/main.rs:166:5
[INFO] [stdout]     |
[INFO] [stdout] 166 | /     /// Paths to one or more ELF files to combine into a UF2 image. Files must
[INFO] [stdout] 167 | |     /// not overlap.
[INFO] [stdout] 168 | |     #[clap(required = true)]
[INFO] [stdout] 169 | |     inputs: Vec<PathBuf>,
[INFO] [stdout]     | |________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]    --> src/main.rs:444:5
[INFO] [stdout]     |
[INFO] [stdout] 444 | /     /// Path to a UF2 file to analyze.
[INFO] [stdout] 445 | |     input: PathBuf,
[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:702:5
[INFO] [stdout]     |
[INFO] [stdout] 702 | /     /// CPU type to search for when enumerating UF2 bootloaders. This will be
[INFO] [stdout] 703 | |     /// used to match the first component of the `Board-Id` line of an
[INFO] [stdout] 704 | |     /// `INFO_UF2.TXT` file. If omitted, any CPU type will be accepted.
[INFO] [stdout] 705 | |     #[clap(long)]
[INFO] [stdout] 706 | |     cpu: Option<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:707:5
[INFO] [stdout]     |
[INFO] [stdout] 707 | /     /// Board type to search for when enumerating UF2 bootloaders. This will be
[INFO] [stdout] 708 | |     /// used to match the second component of the `Board-Id` line of an
[INFO] [stdout] 709 | |     /// `INFO_UF2.TXT` file. If omitted, any board will be accepted.
[INFO] [stdout] 710 | |     #[clap(long)]
[INFO] [stdout] 711 | |     board: Option<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:712:5
[INFO] [stdout]     |
[INFO] [stdout] 712 | /     /// Board revision to search for when enumerating UF2 bootloaders. This will
[INFO] [stdout] 713 | |     /// be used to match the third component of the `Board-Id` line of an
[INFO] [stdout] 714 | |     /// `INFO_UF2.TXT` file. If omitted, any board revision will be accepted.
[INFO] [stdout] 715 | |     #[clap(long)]
[INFO] [stdout] 716 | |     revision: Option<String>,
[INFO] [stdout]     | |____________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `uf2l` (bin "uf2l") due to 7 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `uf2l` (bin "uf2l" test) due to 7 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "7bafd33fe44347cb43ad8b5abc2a045ce9233dfbafd63bc48079af0febd8e43b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7bafd33fe44347cb43ad8b5abc2a045ce9233dfbafd63bc48079af0febd8e43b", kill_on_drop: false }`
[INFO] [stdout] 7bafd33fe44347cb43ad8b5abc2a045ce9233dfbafd63bc48079af0febd8e43b
