[INFO] cloning repository https://github.com/joyent/rust-muppet
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/joyent/rust-muppet" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjoyent%2Frust-muppet", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjoyent%2Frust-muppet'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 13f9909bc0debc0488522f4c5249775ba5e751b7
[INFO] checking joyent/rust-muppet against master#33fdb797f59421c7bbecaa4588ed5d7a31a9494a for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjoyent%2Frust-muppet" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/joyent/rust-muppet on toolchain 33fdb797f59421c7bbecaa4588ed5d7a31a9494a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/joyent/rust-muppet
[INFO] finished tweaking git repo https://github.com/joyent/rust-muppet
[INFO] tweaked toml for git repo https://github.com/joyent/rust-muppet written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/joyent/rust-muppet already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "fetch" "--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-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 9b1887f2ec4b50c169985040d871ecf68c4d45044666f5e8e79b4bddf9a9bf35
[INFO] running `Command { std: "docker" "start" "-a" "9b1887f2ec4b50c169985040d871ecf68c4d45044666f5e8e79b4bddf9a9bf35", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9b1887f2ec4b50c169985040d871ecf68c4d45044666f5e8e79b4bddf9a9bf35", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b1887f2ec4b50c169985040d871ecf68c4d45044666f5e8e79b4bddf9a9bf35", kill_on_drop: false }`
[INFO] [stdout] 9b1887f2ec4b50c169985040d871ecf68c4d45044666f5e8e79b4bddf9a9bf35
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 571b701ed6cd9010d16f1fa3bff2e927379a6cea00fdaeabfc70ef3f3d18c98d
[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" "571b701ed6cd9010d16f1fa3bff2e927379a6cea00fdaeabfc70ef3f3d18c98d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling slog v2.4.1
[INFO] [stderr]     Checking itoa v0.4.3
[INFO] [stderr]     Checking lazycell v1.2.1
[INFO] [stderr]     Checking bitflags v1.0.4
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]    Compiling nix v0.13.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]     Checking ryu v0.2.7
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking textwrap v0.10.0
[INFO] [stderr]    Compiling proc-macro2 v0.4.27
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking serde_json v1.0.39
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]     Checking mio v0.6.16
[INFO] [stderr]    Compiling quote v0.6.11
[INFO] [stderr]     Checking num-iter v0.1.37
[INFO] [stderr]     Checking chrono v0.4.6
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]    Compiling syn v0.15.29
[INFO] [stderr]     Checking mio-extras v2.0.5
[INFO] [stderr]     Checking chrono v0.3.0
[INFO] [stderr]     Checking slog-json v2.3.0
[INFO] [stderr]     Checking slog-bunyan v2.1.1-pre (https://github.com/kellymclaughlin/bunyan?branch=build-on-smartos#986664e3)
[INFO] [stderr]    Compiling zookeeper_derive v0.4.0
[INFO] [stderr]    Compiling serde_derive v1.0.89
[INFO] [stderr]     Checking zookeeper v0.5.6
[INFO] [stderr]     Checking rust-muppet v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/config.rs:40:65
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub fn read_file<P: AsRef<Path>>(path: P) -> Result<Config, Box<Error>> {
[INFO] [stdout]    |                                                                 ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]   --> src/main.rs:21:22
[INFO] [stdout]    |
[INFO] [stdout] 21 | fn get_untrusted_ips(c: &Config) -> Vec<Ipv4Addr> {
[INFO] [stdout]    |                      ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]   --> src/main.rs:25:22
[INFO] [stdout]    |
[INFO] [stdout] 25 | fn zookeeper_session(c: &Config, uips: Vec<Ipv4Addr>) -> ZkResult<ZooKeeper> {
[INFO] [stdout]    |                      ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `uips`
[INFO] [stdout]   --> src/main.rs:25:34
[INFO] [stdout]    |
[INFO] [stdout] 25 | fn zookeeper_session(c: &Config, uips: Vec<Ipv4Addr>) -> ZkResult<ZooKeeper> {
[INFO] [stdout]    |                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_uips`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `z`
[INFO] [stdout]   --> src/main.rs:29:16
[INFO] [stdout]    |
[INFO] [stdout] 29 | fn start_watch(z: &ZooKeeper, c: &Config) {
[INFO] [stdout]    |                ^ help: if this is intentional, prefix it with an underscore: `_z`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]   --> src/main.rs:29:31
[INFO] [stdout]    |
[INFO] [stdout] 29 | fn start_watch(z: &ZooKeeper, c: &Config) {
[INFO] [stdout]    |                               ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/config.rs:40:65
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub fn read_file<P: AsRef<Path>>(path: P) -> Result<Config, Box<Error>> {
[INFO] [stdout]    |                                                                 ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]   --> src/main.rs:21:22
[INFO] [stdout]    |
[INFO] [stdout] 21 | fn get_untrusted_ips(c: &Config) -> Vec<Ipv4Addr> {
[INFO] [stdout]    |                      ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]   --> src/main.rs:25:22
[INFO] [stdout]    |
[INFO] [stdout] 25 | fn zookeeper_session(c: &Config, uips: Vec<Ipv4Addr>) -> ZkResult<ZooKeeper> {
[INFO] [stdout]    |                      ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `uips`
[INFO] [stdout]   --> src/main.rs:25:34
[INFO] [stdout]    |
[INFO] [stdout] 25 | fn zookeeper_session(c: &Config, uips: Vec<Ipv4Addr>) -> ZkResult<ZooKeeper> {
[INFO] [stdout]    |                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_uips`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `z`
[INFO] [stdout]   --> src/main.rs:29:16
[INFO] [stdout]    |
[INFO] [stdout] 29 | fn start_watch(z: &ZooKeeper, c: &Config) {
[INFO] [stdout]    |                ^ help: if this is intentional, prefix it with an underscore: `_z`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]   --> src/main.rs:29:31
[INFO] [stdout]    |
[INFO] [stdout] 29 | fn start_watch(z: &ZooKeeper, c: &Config) {
[INFO] [stdout]    |                               ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 50.45s
[INFO] running `Command { std: "docker" "inspect" "571b701ed6cd9010d16f1fa3bff2e927379a6cea00fdaeabfc70ef3f3d18c98d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "571b701ed6cd9010d16f1fa3bff2e927379a6cea00fdaeabfc70ef3f3d18c98d", kill_on_drop: false }`
[INFO] [stdout] 571b701ed6cd9010d16f1fa3bff2e927379a6cea00fdaeabfc70ef3f3d18c98d