[INFO] fetching crate mfc-cloner 0.1.2...
[INFO] checking mfc-cloner-0.1.2 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate mfc-cloner 0.1.2 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate mfc-cloner 0.1.2
[INFO] finished tweaking crates.io crate mfc-cloner 0.1.2
[INFO] tweaked toml for crates.io crate mfc-cloner 0.1.2 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mfc-cloner 0.1.2 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 crates.io crate mfc-cloner 0.1.2 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] 7fd5fa2206f82af0ebd5c0212beda651c40435c54907c36c62f8fe5dea733325
[INFO] running `Command { std: "docker" "start" "-a" "7fd5fa2206f82af0ebd5c0212beda651c40435c54907c36c62f8fe5dea733325", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7fd5fa2206f82af0ebd5c0212beda651c40435c54907c36c62f8fe5dea733325", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7fd5fa2206f82af0ebd5c0212beda651c40435c54907c36c62f8fe5dea733325", kill_on_drop: false }`
[INFO] [stdout] 7fd5fa2206f82af0ebd5c0212beda651c40435c54907c36c62f8fe5dea733325
[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] e663ae596e1df11099a4ad242ac51d9059633b2f6e71cc11a576b42a29580a69
[INFO] running `Command { std: "docker" "start" "-a" "e663ae596e1df11099a4ad242ac51d9059633b2f6e71cc11a576b42a29580a69", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]     Checking regex-syntax v0.6.22
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]    Compiling anyhow v1.0.38
[INFO] [stderr]     Checking ansi-escapes v0.1.0
[INFO] [stderr]     Checking number_prefix v0.3.0
[INFO] [stderr]     Checking exitcode v1.1.2
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling heck v0.3.2
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking log-update v0.1.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking terminal_size v0.1.16
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking regex v1.4.3
[INFO] [stderr]     Checking console v0.14.0
[INFO] [stderr]     Checking console v0.13.0
[INFO] [stderr]     Checking indicatif v0.15.0
[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr]     Checking structopt v0.3.21
[INFO] [stderr]     Checking mfc-cloner v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 21 | /         /// The UID that will be put on the cloned card
[INFO] [stdout] 22 | |         uid: String,
[INFO] [stdout]    | |___________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mfc-cloner` (bin "mfc-cloner") due to 3 previous errors
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]   --> src/main.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 | /         /// Optional .txt key file
[INFO] [stdout] 34 | |         #[structopt(short = "k", long = "key")]
[INFO] [stdout] 35 | |         key_file: Option<PathBuf>,
[INFO] [stdout]    | |_________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[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]   --> src/main.rs:45:9
[INFO] [stdout]    |
[INFO] [stdout] 45 | /         /// Optional .txt key file
[INFO] [stdout] 46 | |         #[structopt(short = "k", long = "key")]
[INFO] [stdout] 47 | |         key_file: Option<PathBuf>,
[INFO] [stdout]    | |_________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 21 | /         /// The UID that will be put on the cloned card
[INFO] [stdout] 22 | |         uid: 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<PathBuf, Infallible>
[INFO] [stdout]   --> src/main.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 | /         /// Optional .txt key file
[INFO] [stdout] 34 | |         #[structopt(short = "k", long = "key")]
[INFO] [stdout] 35 | |         key_file: Option<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:45:9
[INFO] [stdout]    |
[INFO] [stdout] 45 | /         /// Optional .txt key file
[INFO] [stdout] 46 | |         #[structopt(short = "k", long = "key")]
[INFO] [stdout] 47 | |         key_file: Option<PathBuf>,
[INFO] [stdout]    | |_________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mfc-cloner` (bin "mfc-cloner" test) due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "e663ae596e1df11099a4ad242ac51d9059633b2f6e71cc11a576b42a29580a69", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e663ae596e1df11099a4ad242ac51d9059633b2f6e71cc11a576b42a29580a69", kill_on_drop: false }`
[INFO] [stdout] e663ae596e1df11099a4ad242ac51d9059633b2f6e71cc11a576b42a29580a69
