[INFO] fetching crate cargo-dentaku-ant 0.1.1...
[INFO] checking cargo-dentaku-ant-0.1.1 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate cargo-dentaku-ant 0.1.1 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate cargo-dentaku-ant 0.1.1
[INFO] finished tweaking crates.io crate cargo-dentaku-ant 0.1.1
[INFO] tweaked toml for crates.io crate cargo-dentaku-ant 0.1.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate cargo-dentaku-ant 0.1.1 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 cargo-dentaku-ant 0.1.1 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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] c970a1a697ae336f7bbf52f1b5600efc3cb06e34c3ef0c54f3d5dfb0a2c823fb
[INFO] running `Command { std: "docker" "start" "-a" "c970a1a697ae336f7bbf52f1b5600efc3cb06e34c3ef0c54f3d5dfb0a2c823fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c970a1a697ae336f7bbf52f1b5600efc3cb06e34c3ef0c54f3d5dfb0a2c823fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c970a1a697ae336f7bbf52f1b5600efc3cb06e34c3ef0c54f3d5dfb0a2c823fb", kill_on_drop: false }`
[INFO] [stdout] c970a1a697ae336f7bbf52f1b5600efc3cb06e34c3ef0c54f3d5dfb0a2c823fb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] a5dbcbe49d1c76f92142b18559286cc353c928c39e5cf50e8c178282ece9c989
[INFO] running `Command { std: "docker" "start" "-a" "a5dbcbe49d1c76f92142b18559286cc353c928c39e5cf50e8c178282ece9c989", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]    Compiling syn v1.0.71
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling backtrace v0.3.58
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]     Checking object v0.23.0
[INFO] [stderr]     Checking number_prefix v0.3.0
[INFO] [stderr]     Checking regex v1.4.6
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking terminal_size v0.1.16
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]     Checking os_type v2.2.0
[INFO] [stderr]     Checking console v0.14.1
[INFO] [stderr]     Checking indicatif v0.15.0
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr]     Checking structopt v0.3.21
[INFO] [stderr]     Checking human-panic v1.0.3
[INFO] [stderr]     Checking cargo-dentaku-ant v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `lib_name` is never read
[INFO] [stdout]   --> src/cli.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout]  7 | pub struct Cli {
[INFO] [stdout]    |            --- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 16 |     pub lib_name: Option<String>,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `lib_name` is never read
[INFO] [stdout]   --> src/cli.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout]  7 | pub struct Cli {
[INFO] [stdout]    |            --- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 16 |     pub lib_name: Option<String>,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[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]   --> src/cli.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | /     /// pacage's name
[INFO] [stdout] 12 | |     pub name: 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]   --> src/cli.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | /     /// add source as library
[INFO] [stdout] 15 | |     #[structopt(short = "l", long = "library")]
[INFO] [stdout] 16 | |     pub lib_name: Option<String>,
[INFO] [stdout]    | |________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/cli.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | /     /// pacage's name
[INFO] [stdout] 12 | |     pub name: 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]   --> src/cli.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | /     /// add source as library
[INFO] [stdout] 15 | |     #[structopt(short = "l", long = "library")]
[INFO] [stdout] 16 | |     pub lib_name: Option<String>,
[INFO] [stdout]    | |________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cargo-dentaku-ant` (bin "cargo-dentaku-ant") due to 2 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `cargo-dentaku-ant` (bin "cargo-dentaku-ant" test) due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "a5dbcbe49d1c76f92142b18559286cc353c928c39e5cf50e8c178282ece9c989", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5dbcbe49d1c76f92142b18559286cc353c928c39e5cf50e8c178282ece9c989", kill_on_drop: false }`
[INFO] [stdout] a5dbcbe49d1c76f92142b18559286cc353c928c39e5cf50e8c178282ece9c989
