[INFO] updating cached repository https://github.com/Anode194/greet_me
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] [stderr] From https://github.com/Anode194/greet_me
[INFO] [stderr]    0c3309e..85f52f2  master     -> master
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 85f52f279d63354822d63f2de5a4a38acb591991
[INFO] checking Anode194/greet_me against master#0a675c5e02e6ecfda7d4e04aabd23a9935e0c4bf for pr-71814
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAnode194%2Fgreet_me" "/workspace/builds/worker-4/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Anode194/greet_me on toolchain 0a675c5e02e6ecfda7d4e04aabd23a9935e0c4bf
[INFO] running `"/workspace/cargo-home/bin/cargo" "+0a675c5e02e6ecfda7d4e04aabd23a9935e0c4bf" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/Anode194/greet_me
[INFO] finished tweaking git repo https://github.com/Anode194/greet_me
[INFO] tweaked toml for git repo https://github.com/Anode194/greet_me written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/Anode194/greet_me already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+0a675c5e02e6ecfda7d4e04aabd23a9935e0c4bf" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+0a675c5e02e6ecfda7d4e04aabd23a9935e0c4bf" "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] f19e1268605143d584452b2582991f6a35e9183b7d23a07f88a82a2c804eec50
[INFO] running `"docker" "start" "-a" "f19e1268605143d584452b2582991f6a35e9183b7d23a07f88a82a2c804eec50"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling libc v0.2.68
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking json v0.12.4
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking clicolors-control v1.0.1
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking greetme v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: value assigned to `json_obj` is never read
[INFO] [stderr]    --> src/lib.rs:119:9
[INFO] [stderr]     |
[INFO] [stderr] 119 |     let mut json_obj = json::JsonValue::new_object();
[INFO] [stderr]     |         ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: variable `Object` should have a snake case name
[INFO] [stderr]    --> src/lib.rs:123:41
[INFO] [stderr]     |
[INFO] [stderr] 123 |             json::JsonValue::Object(mut Object) => {
[INFO] [stderr]     |                                         ^^^^^^ help: convert the identifier to snake case (notice the capitalization): `object`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `json_obj` is never read
[INFO] [stderr]    --> src/lib.rs:119:9
[INFO] [stderr]     |
[INFO] [stderr] 119 |     let mut json_obj = json::JsonValue::new_object();
[INFO] [stderr]     |         ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: variable `Object` should have a snake case name
[INFO] [stderr]    --> src/lib.rs:123:41
[INFO] [stderr]     |
[INFO] [stderr] 123 |             json::JsonValue::Object(mut Object) => {
[INFO] [stderr]     |                                         ^^^^^^ help: convert the identifier to snake case (notice the capitalization): `object`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.54s
[INFO] running `"docker" "inspect" "f19e1268605143d584452b2582991f6a35e9183b7d23a07f88a82a2c804eec50"`
[INFO] running `"docker" "rm" "-f" "f19e1268605143d584452b2582991f6a35e9183b7d23a07f88a82a2c804eec50"`
[INFO] [stdout] f19e1268605143d584452b2582991f6a35e9183b7d23a07f88a82a2c804eec50