[INFO] crate supervisor-rs 0.6.0 is already in cache
[INFO] checking supervisor-rs-0.6.0 against try#d7b51666469c792a8a3f40849607739bae1e705e for pr-71665
[INFO] extracting crate supervisor-rs 0.6.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate supervisor-rs 0.6.0 on toolchain d7b51666469c792a8a3f40849607739bae1e705e
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d7b51666469c792a8a3f40849607739bae1e705e" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate supervisor-rs 0.6.0
[INFO] finished tweaking crates.io crate supervisor-rs 0.6.0
[INFO] tweaked toml for crates.io crate supervisor-rs 0.6.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate supervisor-rs 0.6.0 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d7b51666469c792a8a3f40849607739bae1e705e" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+d7b51666469c792a8a3f40849607739bae1e705e" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] bf26a299cd1c1edf5ff3d3a1d19c119d42cd9936195980a4c2d86ab46d2c7fd1
[INFO] running `"docker" "start" "-a" "bf26a299cd1c1edf5ff3d3a1d19c119d42cd9936195980a4c2d86ab46d2c7fd1"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling libc v0.2.51
[INFO] [stderr]    Compiling cc v1.0.50
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling openssl v0.10.26
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking linked-hash-map v0.5.1
[INFO] [stderr]     Checking yaml-rust v0.4.2
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]    Compiling openssl-sys v0.9.53
[INFO] [stderr]     Checking chrono v0.4.6
[INFO] [stderr]     Checking supervisor-rs v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/client.rs:272:33
[INFO] [stderr]     |
[INFO] [stderr] 272 |             comm.err().unwrap().description(),
[INFO] [stderr]     |                                 ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/client.rs:279:13
[INFO] [stderr]     |
[INFO] [stderr] 279 |         let mut case0 = vec![
[INFO] [stderr]     |             ----^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/client.rs:297:13
[INFO] [stderr]     |
[INFO] [stderr] 297 |         let mut case1 = vec!["restart", "child", "with", "key", "on", "host1, host2"]; // second hosts format
[INFO] [stderr]     |             ----^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/client.rs:322:13
[INFO] [stderr]     |
[INFO] [stderr] 322 |         let mut case0 = vec![
[INFO] [stderr]     |             ----^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `command_argvs`
[INFO] [stderr]    --> src/child.rs:228:8
[INFO] [stderr]     |
[INFO] [stderr] 228 |     fn command_argvs() {
[INFO] [stderr]     |        ^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `run_ls`
[INFO] [stderr]    --> src/child.rs:239:8
[INFO] [stderr]     |
[INFO] [stderr] 239 |     fn run_ls() {
[INFO] [stderr]     |        ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `read_hooks`
[INFO] [stderr]    --> src/child.rs:246:8
[INFO] [stderr]     |
[INFO] [stderr] 246 |     fn read_hooks() {
[INFO] [stderr]     |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 7 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.87s
[INFO] running `"docker" "inspect" "bf26a299cd1c1edf5ff3d3a1d19c119d42cd9936195980a4c2d86ab46d2c7fd1"`
[INFO] running `"docker" "rm" "-f" "bf26a299cd1c1edf5ff3d3a1d19c119d42cd9936195980a4c2d86ab46d2c7fd1"`
[INFO] [stdout] bf26a299cd1c1edf5ff3d3a1d19c119d42cd9936195980a4c2d86ab46d2c7fd1