[INFO] fetching crate backplane 0.0.4... [INFO] checking backplane-0.0.4 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] extracting crate backplane 0.0.4 into /workspace/builds/worker-5-tc1/source [INFO] validating manifest of crates.io crate backplane 0.0.4 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate backplane 0.0.4 [INFO] finished tweaking crates.io crate backplane 0.0.4 [INFO] tweaked toml for crates.io crate backplane 0.0.4 written to /workspace/builds/worker-5-tc1/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Locking 39 packages [INFO] [stderr] Adding bitflags v1.3.2 (latest: v2.5.0) [INFO] [stderr] Adding bytes v0.4.12 (latest: v1.6.0) [INFO] [stderr] Adding clap v2.34.0 (latest: v4.5.4) [INFO] [stderr] Adding hermit-abi v0.1.19 (latest: v0.3.9) [INFO] [stderr] Adding num v0.2.1 (latest: v0.4.1) [INFO] [stderr] Adding num-bigint v0.2.6 (latest: v0.4.4) [INFO] [stderr] Adding num-complex v0.2.4 (latest: v0.4.5) [INFO] [stderr] Adding num-derive v0.2.5 (latest: v0.4.2) [INFO] [stderr] Adding num-rational v0.2.4 (latest: v0.4.1) [INFO] [stderr] Adding proc-macro2 v0.4.30 (latest: v1.0.79) [INFO] [stderr] Adding quote v0.6.13 (latest: v1.0.35) [INFO] [stderr] Adding strsim v0.8.0 (latest: v0.11.1) [INFO] [stderr] Adding syn v0.15.44 (latest: v2.0.58) [INFO] [stderr] Adding textwrap v0.11.0 (latest: v0.16.1) [INFO] [stderr] Adding unicode-xid v0.1.0 (latest: v0.2.4) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded num-bigint v0.2.6 [INFO] [stderr] Downloaded num-complex v0.2.4 [INFO] [stderr] Downloaded num-rational v0.2.4 [INFO] [stderr] Downloaded num v0.2.1 [INFO] [stderr] Downloaded num-derive v0.2.5 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 654de3ebc4b9f3909c8d2625bed9c87c75be5e300c9767af02e46b809516296e [INFO] running `Command { std: "docker" "start" "-a" "654de3ebc4b9f3909c8d2625bed9c87c75be5e300c9767af02e46b809516296e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "654de3ebc4b9f3909c8d2625bed9c87c75be5e300c9767af02e46b809516296e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "654de3ebc4b9f3909c8d2625bed9c87c75be5e300c9767af02e46b809516296e", kill_on_drop: false }` [INFO] [stdout] 654de3ebc4b9f3909c8d2625bed9c87c75be5e300c9767af02e46b809516296e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 7910d0ead3cd9d7f9a8cbfce0e483d28c95616650b3955df035566297ac35135 [INFO] running `Command { std: "docker" "start" "-a" "7910d0ead3cd9d7f9a8cbfce0e483d28c95616650b3955df035566297ac35135", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.79 [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Compiling num-bigint v0.2.6 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Compiling num-complex v0.2.4 [INFO] [stderr] Compiling num-rational v0.2.4 [INFO] [stderr] Compiling syn v0.15.44 [INFO] [stderr] Compiling serde v1.0.197 [INFO] [stderr] Compiling num-derive v0.2.5 [INFO] [stderr] Checking unicode-width v0.1.11 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking num-iter v0.1.44 [INFO] [stderr] Checking iovec v0.1.4 [INFO] [stderr] Checking bitflags v1.3.2 [INFO] [stderr] Checking strsim v0.8.0 [INFO] [stderr] Checking vec_map v0.8.2 [INFO] [stderr] Checking bytes v0.4.12 [INFO] [stderr] Checking clap v2.34.0 [INFO] [stderr] Compiling quote v0.6.13 [INFO] [stderr] Compiling quote v1.0.35 [INFO] [stderr] Compiling syn v2.0.58 [INFO] [stderr] Checking num v0.2.1 [INFO] [stderr] Compiling serde_derive v1.0.197 [INFO] [stderr] Checking serde_json v1.0.115 [INFO] [stderr] Checking backplane v0.0.4 (/opt/rustwide/workdir) [INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string() [INFO] [stdout] --> src/lib.rs:491:28 [INFO] [stdout] | [INFO] [stdout] 491 | fmt.write_str(self.description()) [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string() [INFO] [stdout] --> src/lib.rs:491:28 [INFO] [stdout] | [INFO] [stdout] 491 | fmt.write_str(self.description()) [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 21.39s [INFO] running `Command { std: "docker" "inspect" "7910d0ead3cd9d7f9a8cbfce0e483d28c95616650b3955df035566297ac35135", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7910d0ead3cd9d7f9a8cbfce0e483d28c95616650b3955df035566297ac35135", kill_on_drop: false }` [INFO] [stdout] 7910d0ead3cd9d7f9a8cbfce0e483d28c95616650b3955df035566297ac35135