[INFO] fetching crate spin-the-wheel 0.0.3...
[INFO] checking spin-the-wheel-0.0.3 against master#4eb62535fc12dd1a63fd43a4173e224e79313c4d for pr-158816
[INFO] extracting crate spin-the-wheel 0.0.3 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate spin-the-wheel 0.0.3
[INFO] finished tweaking crates.io crate spin-the-wheel 0.0.3
[INFO] tweaked toml for crates.io crate spin-the-wheel 0.0.3 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate spin-the-wheel 0.0.3 on toolchain 4eb62535fc12dd1a63fd43a4173e224e79313c4d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4eb62535fc12dd1a63fd43a4173e224e79313c4d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate spin-the-wheel 0.0.3 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" "+4eb62535fc12dd1a63fd43a4173e224e79313c4d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded linked-hash-map v0.5.4
[INFO] [stderr]   Downloaded crossterm_winapi v0.6.2
[INFO] [stderr]   Downloaded os_str_bytes v2.4.0
[INFO] [stderr]   Downloaded signal-hook v0.1.17
[INFO] [stderr]   Downloaded lock_api v0.4.4
[INFO] [stderr]   Downloaded redox_syscall v0.2.8
[INFO] [stderr]   Downloaded textwrap v0.12.1
[INFO] [stderr]   Downloaded clap_derive v3.0.0-beta.2
[INFO] [stderr]   Downloaded crossterm v0.18.2
[INFO] [stderr]   Downloaded heck v0.3.2
[INFO] [stderr]   Downloaded unicode-segmentation v1.7.1
[INFO] [stderr]   Downloaded clap v3.0.0-beta.2
[INFO] [stderr]   Downloaded syn v1.0.72
[INFO] [stderr]   Downloaded libc v0.2.94
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3d5ced03c013a94a2f102a4510f48a6e9184255caf5fd8244f58017bde7f5210" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] f9c4171361ea8ffe3c129c68566ab8eefd5859eefe9f3f71a97dbe2f3dec4de9
[INFO] running `Command { std: "docker" "start" "f9c4171361ea8ffe3c129c68566ab8eefd5859eefe9f3f71a97dbe2f3dec4de9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f9c4171361ea8ffe3c129c68566ab8eefd5859eefe9f3f71a97dbe2f3dec4de9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "f9c4171361ea8ffe3c129c68566ab8eefd5859eefe9f3f71a97dbe2f3dec4de9" "/opt/rustwide/cargo-home/bin/cargo" "+4eb62535fc12dd1a63fd43a4173e224e79313c4d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f9c4171361ea8ffe3c129c68566ab8eefd5859eefe9f3f71a97dbe2f3dec4de9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-w" "/opt/rustwide/workdir" "--user" "0:0" "f9c4171361ea8ffe3c129c68566ab8eefd5859eefe9f3f71a97dbe2f3dec4de9" "/opt/rustwide/cargo-home/bin/cargo" "+4eb62535fc12dd1a63fd43a4173e224e79313c4d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]     Checking instant v0.1.9
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking lock_api v0.4.4
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking linked-hash-map v0.5.4
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking yaml-rust v0.4.5
[INFO] [stderr]     Checking textwrap v0.12.1
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]     Checking os_str_bytes v2.4.0
[INFO] [stderr]    Compiling heck v0.3.2
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking signal-hook-registry v1.3.0
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking mio v0.7.11
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking signal-hook v0.1.17
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking crossterm v0.18.2
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]    Compiling clap_derive v3.0.0-beta.2
[INFO] [stderr]     Checking clap v3.0.0-beta.2
[INFO] [stderr]     Checking spin-the-wheel v0.0.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/entry.rs:43:9
[INFO] [stdout]    |
[INFO] [stdout] 43 |         &entry.print()?;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 43 |         let _ = &entry.print()?;
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/entry.rs:43:9
[INFO] [stdout]    |
[INFO] [stdout] 43 |         &entry.print()?;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 43 |         let _ = &entry.print()?;
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 15.06s
[INFO] running `Command { std: "docker" "inspect" "f9c4171361ea8ffe3c129c68566ab8eefd5859eefe9f3f71a97dbe2f3dec4de9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9c4171361ea8ffe3c129c68566ab8eefd5859eefe9f3f71a97dbe2f3dec4de9", kill_on_drop: false }`
[INFO] [stdout] f9c4171361ea8ffe3c129c68566ab8eefd5859eefe9f3f71a97dbe2f3dec4de9
