[INFO] cloning repository https://github.com/Clish254/rust-state-machine [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Clish254/rust-state-machine" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FClish254%2Frust-state-machine", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FClish254%2Frust-state-machine'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 0ea1293354b23695ae5e0123d870f765a6e9711e [INFO] checking Clish254/rust-state-machine against master#336209eef13882bd1e211b24779584cb7ef911eb for pr-129249 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FClish254%2Frust-state-machine" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/Clish254/rust-state-machine on toolchain 336209eef13882bd1e211b24779584cb7ef911eb [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+336209eef13882bd1e211b24779584cb7ef911eb" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/Clish254/rust-state-machine [INFO] finished tweaking git repo https://github.com/Clish254/rust-state-machine [INFO] tweaked toml for git repo https://github.com/Clish254/rust-state-machine written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/Clish254/rust-state-machine 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" "+336209eef13882bd1e211b24779584cb7ef911eb" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+336209eef13882bd1e211b24779584cb7ef911eb" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] ee06e6b782fbd80f6d253810bc5c8964980330a471d4894a169d14129cd94489 [INFO] running `Command { std: "docker" "start" "-a" "ee06e6b782fbd80f6d253810bc5c8964980330a471d4894a169d14129cd94489", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ee06e6b782fbd80f6d253810bc5c8964980330a471d4894a169d14129cd94489", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ee06e6b782fbd80f6d253810bc5c8964980330a471d4894a169d14129cd94489", kill_on_drop: false }` [INFO] [stdout] ee06e6b782fbd80f6d253810bc5c8964980330a471d4894a169d14129cd94489 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+336209eef13882bd1e211b24779584cb7ef911eb" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 0c6d1d778cec96ba1becf997a2aeb4925ec37ed855bc5181d08684f9a706a4f1 [INFO] running `Command { std: "docker" "start" "-a" "0c6d1d778cec96ba1becf997a2aeb4925ec37ed855bc5181d08684f9a706a4f1", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v1.3.0 [INFO] [stderr] Compiling proc-macro2 v1.0.86 [INFO] [stderr] Compiling unicode-ident v1.0.12 [INFO] [stderr] Compiling num-traits v0.2.19 [INFO] [stderr] Compiling quote v1.0.36 [INFO] [stderr] Compiling syn v2.0.72 [INFO] [stderr] Checking num-integer v0.1.46 [INFO] [stderr] Checking num-complex v0.4.6 [INFO] [stderr] Checking num-bigint v0.4.6 [INFO] [stderr] Checking num-iter v0.1.45 [INFO] [stderr] Checking num-rational v0.4.2 [INFO] [stderr] Checking num v0.4.3 [INFO] [stderr] Compiling macros v0.1.0 (/opt/rustwide/workdir/macros) [INFO] [stderr] Checking rust-state-machine v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:24:1 [INFO] [stdout] | [INFO] [stdout] 24 | #[macros::runtime] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this warning originates in the attribute macro `macros::runtime` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:24:1 [INFO] [stdout] | [INFO] [stdout] 24 | #[macros::runtime] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this warning originates in the attribute macro `macros::runtime` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.53s [INFO] running `Command { std: "docker" "inspect" "0c6d1d778cec96ba1becf997a2aeb4925ec37ed855bc5181d08684f9a706a4f1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0c6d1d778cec96ba1becf997a2aeb4925ec37ed855bc5181d08684f9a706a4f1", kill_on_drop: false }` [INFO] [stdout] 0c6d1d778cec96ba1becf997a2aeb4925ec37ed855bc5181d08684f9a706a4f1