[INFO] fetching crate zk-loader 0.1.1... [INFO] checking zk-loader-0.1.1 against master#da897dfb6daa268a965d2d73620316ba56020a19 for pr-76219 [INFO] extracting crate zk-loader 0.1.1 into /workspace/builds/worker-7/source [INFO] validating manifest of crates.io crate zk-loader 0.1.1 on toolchain da897dfb6daa268a965d2d73620316ba56020a19 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+da897dfb6daa268a965d2d73620316ba56020a19" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking crates.io crate zk-loader 0.1.1 [INFO] finished tweaking crates.io crate zk-loader 0.1.1 [INFO] tweaked toml for crates.io crate zk-loader 0.1.1 written to /workspace/builds/worker-7/source/Cargo.toml [INFO] crate crates.io crate zk-loader 0.1.1 already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+da897dfb6daa268a965d2d73620316ba56020a19" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+da897dfb6daa268a965d2d73620316ba56020a19" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 46bf036eff4b0cff4764dd34c905bb52ce93a2f8bae64e74a116defee121ea55 [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" "46bf036eff4b0cff4764dd34c905bb52ce93a2f8bae64e74a116defee121ea55", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "46bf036eff4b0cff4764dd34c905bb52ce93a2f8bae64e74a116defee121ea55", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "46bf036eff4b0cff4764dd34c905bb52ce93a2f8bae64e74a116defee121ea55", kill_on_drop: false }` [INFO] [stdout] 46bf036eff4b0cff4764dd34c905bb52ce93a2f8bae64e74a116defee121ea55 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+da897dfb6daa268a965d2d73620316ba56020a19" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 3fff02b015b45f63b6aebe71c9f897a825d25dc91fa9806da1d6f85c63b8c6c6 [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" "3fff02b015b45f63b6aebe71c9f897a825d25dc91fa9806da1d6f85c63b8c6c6", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.64 [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Compiling byteorder v1.3.2 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Checking slab v0.4.2 [INFO] [stderr] Checking lazycell v1.2.1 [INFO] [stderr] Checking unicode-width v0.1.6 [INFO] [stderr] Checking adler32 v1.0.4 [INFO] [stderr] Checking ansi_term v0.11.0 [INFO] [stderr] Checking snowflake v1.3.0 [INFO] [stderr] Checking strsim v0.8.0 [INFO] [stderr] Checking vec_map v0.8.1 [INFO] [stderr] Checking log v0.4.8 [INFO] [stderr] Checking crc32fast v1.2.0 [INFO] [stderr] Checking miniz_oxide v0.3.5 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Compiling quote v0.6.13 [INFO] [stderr] Checking iovec v0.1.4 [INFO] [stderr] Checking net2 v0.2.33 [INFO] [stderr] Checking filetime v0.2.7 [INFO] [stderr] Checking atty v0.2.13 [INFO] [stderr] Checking xattr v0.2.2 [INFO] [stderr] Checking flate2 v1.0.12 [INFO] [stderr] Checking clap v2.33.0 [INFO] [stderr] Checking bytes v0.4.12 [INFO] [stderr] Compiling syn v0.14.9 [INFO] [stderr] Checking tar v0.4.26 [INFO] [stderr] Checking mio v0.6.19 [INFO] [stderr] Checking mio-extras v2.0.5 [INFO] [stderr] Compiling zookeeper_derive v0.4.0 [INFO] [stderr] Checking zookeeper v0.5.7 [INFO] [stderr] Checking zk-loader v0.1.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/zk_interaction.rs:58:9 [INFO] [stdout] | [INFO] [stdout] 58 | zk_client.create(new_znode.as_str(), vec![], Acl::open_unsafe().clone(), CreateMode::Persistent); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/zk_interaction.rs:58:9 [INFO] [stdout] | [INFO] [stdout] 58 | zk_client.create(new_znode.as_str(), vec![], Acl::open_unsafe().clone(), CreateMode::Persistent); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/zk_interaction.rs:158:9 [INFO] [stdout] | [INFO] [stdout] 158 | zk.create(root_znode.0, root_znode.1.clone(), Acl::open_unsafe().clone(), CreateMode::Persistent); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/zk_interaction.rs:159:9 [INFO] [stdout] | [INFO] [stdout] 159 | zk.create(child_znode.0, child_znode.1.clone(), Acl::open_unsafe().clone(), CreateMode::Persistent); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/zk_interaction.rs:160:9 [INFO] [stdout] | [INFO] [stdout] 160 | zk.create(excluded_znode.0, excluded_znode.1.clone(), Acl::open_unsafe().clone(), CreateMode::Persistent); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/zk_interaction.rs:161:9 [INFO] [stdout] | [INFO] [stdout] 161 | zk.create(ephemeral_znode.0, ephemeral_znode.1.clone(), Acl::open_unsafe().clone(), CreateMode::Ephemeral); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/zk_interaction.rs:164:9 [INFO] [stdout] | [INFO] [stdout] 164 | zk.delete(child_znode.0, None); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/zk_interaction.rs:165:9 [INFO] [stdout] | [INFO] [stdout] 165 | zk.delete(excluded_znode.0, None); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/zk_interaction.rs:166:9 [INFO] [stdout] | [INFO] [stdout] 166 | zk.delete(root_znode.0, None); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 8 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 20.35s [INFO] running `Command { std: "docker" "inspect" "3fff02b015b45f63b6aebe71c9f897a825d25dc91fa9806da1d6f85c63b8c6c6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3fff02b015b45f63b6aebe71c9f897a825d25dc91fa9806da1d6f85c63b8c6c6", kill_on_drop: false }` [INFO] [stdout] 3fff02b015b45f63b6aebe71c9f897a825d25dc91fa9806da1d6f85c63b8c6c6