Nov 29 19:38:31.146 INFO checking robertohuertasm/rust-a-gentle-introduction against try#32252761328f59ccfadb1bafb8148c685bc830b3 for pr-56323
Nov 29 19:38:31.146 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-0/try#32252761328f59ccfadb1bafb8148c685bc830b3:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56323/try#32252761328f59ccfadb1bafb8148c685bc830b3:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +32252761328f59ccfadb1bafb8148c685bc830b3-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Nov 29 19:38:31.680 INFO [stdout] 32b5b2cd2f59377c50852b32a0167029992bc2a007616730d3625dfb83b0660c
Nov 29 19:38:31.688 INFO running `"docker" "start" "-a" "32b5b2cd2f59377c50852b32a0167029992bc2a007616730d3625dfb83b0660c"`
Nov 29 19:38:32.856 INFO [stderr] usermod: no changes
Nov 29 19:38:33.016 INFO [stderr]     Checking crossbeam-epoch v0.3.1
Nov 29 19:38:33.667 INFO [stderr]     Checking crossbeam-deque v0.2.0
Nov 29 19:38:34.246 INFO [stderr]     Checking rayon-core v1.4.0
Nov 29 19:38:35.200 INFO [stderr]     Checking rayon v1.0.1
Nov 29 19:38:38.810 INFO [stderr]     Checking gentle_intro v0.1.0 (/source)
Nov 29 19:38:39.603 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.72s
Nov 29 19:38:39.621 INFO [stderr] su: No module specific data is present
Nov 29 19:38:40.403 INFO running `"docker" "inspect" "32b5b2cd2f59377c50852b32a0167029992bc2a007616730d3625dfb83b0660c"`
Nov 29 19:38:40.734 INFO running `"docker" "rm" "-f" "32b5b2cd2f59377c50852b32a0167029992bc2a007616730d3625dfb83b0660c"`
Nov 29 19:38:41.052 INFO [stdout] 32b5b2cd2f59377c50852b32a0167029992bc2a007616730d3625dfb83b0660c