[INFO] fetching crate cargo-bin 0.3.0...
[INFO] checking cargo-bin-0.3.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate cargo-bin 0.3.0 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate cargo-bin 0.3.0
[INFO] finished tweaking crates.io crate cargo-bin 0.3.0
[INFO] tweaked toml for crates.io crate cargo-bin 0.3.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate cargo-bin 0.3.0 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-bin 0.3.0 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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 4585fcc47448d28fd5359140b3d51096fa34730454241eee61cc6a44d8666011
[INFO] running `Command { std: "docker" "start" "-a" "4585fcc47448d28fd5359140b3d51096fa34730454241eee61cc6a44d8666011", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4585fcc47448d28fd5359140b3d51096fa34730454241eee61cc6a44d8666011", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4585fcc47448d28fd5359140b3d51096fa34730454241eee61cc6a44d8666011", kill_on_drop: false }`
[INFO] [stdout] 4585fcc47448d28fd5359140b3d51096fa34730454241eee61cc6a44d8666011
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] e47e326cf022009ee75c0988a847271ce9516b4528197179f3e18459f6bb0542
[INFO] running `Command { std: "docker" "start" "-a" "e47e326cf022009ee75c0988a847271ce9516b4528197179f3e18459f6bb0542", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]    Compiling syn v1.0.38
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking unicode-xid v0.2.1
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]     Checking ascii v0.9.3
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling anyhow v1.0.32
[INFO] [stderr]     Checking either v1.6.0
[INFO] [stderr]     Checking linked-hash-map v0.5.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking combine v3.8.1
[INFO] [stderr]     Checking quote v1.0.7
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking chrono v0.4.15
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling structopt-derive v0.4.9
[INFO] [stderr]     Checking toml_edit v0.2.0
[INFO] [stderr]     Checking structopt v0.3.16
[INFO] [stderr]     Checking cargo-bin v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `assume_yes` is never read
[INFO] [stdout]   --> src/bin/bin.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |     New {
[INFO] [stdout]    |     --- field in this variant
[INFO] [stdout] ...
[INFO] [stdout] 20 |         assume_yes: bool,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Command` 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] warning: field `assume_yes` is never read
[INFO] [stdout]   --> src/bin/bin.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |     New {
[INFO] [stdout]    |     --- field in this variant
[INFO] [stdout] ...
[INFO] [stdout] 20 |         assume_yes: bool,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Command` 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]   --> src/bin/bin.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 | /         /// Binary path or name.
[INFO] [stdout] 15 | |         #[structopt()]
[INFO] [stdout] 16 | |         path: 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/bin/bin.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 | /         /// Binary path or name
[INFO] [stdout] 33 | |         #[structopt()]
[INFO] [stdout] 34 | |         path: String,
[INFO] [stdout]    | |____________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/bin/bin.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 | /         /// Binary path or name.
[INFO] [stdout] 15 | |         #[structopt()]
[INFO] [stdout] 16 | |         path: 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/bin/bin.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 | /         /// Binary path or name
[INFO] [stdout] 33 | |         #[structopt()]
[INFO] [stdout] 34 | |         path: String,
[INFO] [stdout]    | |____________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cargo-bin` (bin "cargo-bin" test) 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-bin` (bin "cargo-bin") due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "e47e326cf022009ee75c0988a847271ce9516b4528197179f3e18459f6bb0542", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e47e326cf022009ee75c0988a847271ce9516b4528197179f3e18459f6bb0542", kill_on_drop: false }`
[INFO] [stdout] e47e326cf022009ee75c0988a847271ce9516b4528197179f3e18459f6bb0542