[INFO] fetching crate twang 0.2.0... [INFO] checking twang-0.2.0 against try#ffa4a0215752773248fb0f0a8092f1c3e7907e9e for pr-75585 [INFO] extracting crate twang 0.2.0 into /workspace/builds/worker-6/source [INFO] validating manifest of crates.io crate twang 0.2.0 on toolchain ffa4a0215752773248fb0f0a8092f1c3e7907e9e [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking crates.io crate twang 0.2.0 [INFO] finished tweaking crates.io crate twang 0.2.0 [INFO] tweaked toml for crates.io crate twang 0.2.0 written to /workspace/builds/worker-6/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded nix v0.9.0 [INFO] [stderr] Downloaded adi_speaker v0.0.1 [INFO] [stderr] Downloaded adi v0.12.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 5cad67949e0131c1a20dc0743cfc3c73174571410a5e5dfc189255c99b04b159 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "5cad67949e0131c1a20dc0743cfc3c73174571410a5e5dfc189255c99b04b159", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "5cad67949e0131c1a20dc0743cfc3c73174571410a5e5dfc189255c99b04b159", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5cad67949e0131c1a20dc0743cfc3c73174571410a5e5dfc189255c99b04b159", kill_on_drop: false }` [INFO] [stdout] 5cad67949e0131c1a20dc0743cfc3c73174571410a5e5dfc189255c99b04b159 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] a443e0d71d2edcfe60cf2c7551896fc6d65ae19e13960e29b45a8f5b37d5ecf4 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "a443e0d71d2edcfe60cf2c7551896fc6d65ae19e13960e29b45a8f5b37d5ecf4", kill_on_drop: false }` [INFO] [stderr] Checking bitflags v0.9.1 [INFO] [stderr] Checking void v1.0.2 [INFO] [stderr] Checking rand_core v0.3.1 [INFO] [stderr] Checking rand v0.5.6 [INFO] [stderr] Checking nix v0.9.0 [INFO] [stderr] Checking twang v0.2.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused return value of `core::num::::wrapping_add` that must be used [INFO] [stdout] --> src/pink.rs:278:5 [INFO] [stdout] | [INFO] [stdout] 278 | self.pncnt.wrapping_add(1); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this returns the result of the operation, without modifying the original [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking adi_speaker v0.0.1 [INFO] [stderr] Checking adi v0.12.0 [INFO] [stdout] warning: unused return value of `core::num::::wrapping_add` that must be used [INFO] [stdout] --> src/pink.rs:278:5 [INFO] [stdout] | [INFO] [stdout] 278 | self.pncnt.wrapping_add(1); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this returns the result of the operation, without modifying the original [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 6.58s [INFO] running `Command { std: "docker" "inspect" "a443e0d71d2edcfe60cf2c7551896fc6d65ae19e13960e29b45a8f5b37d5ecf4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a443e0d71d2edcfe60cf2c7551896fc6d65ae19e13960e29b45a8f5b37d5ecf4", kill_on_drop: false }` [INFO] [stdout] a443e0d71d2edcfe60cf2c7551896fc6d65ae19e13960e29b45a8f5b37d5ecf4