[INFO] updating cached repository https://github.com/learn-you-a-rust/loops_practice
[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] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] dfdbe339436b324208ad2441b5bc037ecd356e15
[INFO] testing learn-you-a-rust/loops_practice against beta-2020-06-03 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flearn-you-a-rust%2Floops_practice" "/workspace/builds/worker-6/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/learn-you-a-rust/loops_practice on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/learn-you-a-rust/loops_practice
[INFO] finished tweaking git repo https://github.com/learn-you-a-rust/loops_practice
[INFO] tweaked toml for git repo https://github.com/learn-you-a-rust/loops_practice written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/learn-you-a-rust/loops_practice already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=warn" "-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" "+beta-2020-06-03" "build" "--frozen"`
[INFO] [stdout] 1a2ff3e73a74f9fc0d83aef754e9cf989bc7c34344d02aad7924de8efe6fa5ff
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "1a2ff3e73a74f9fc0d83aef754e9cf989bc7c34344d02aad7924de8efe6fa5ff"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling loops_practice v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: function is never used: `fahrenheit_to_celsius_table`
[INFO] [stderr]  --> src/main.rs:3:4
[INFO] [stderr]   |
[INFO] [stderr] 3 | fn fahrenheit_to_celsius_table() {
[INFO] [stderr]   |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.34s
[INFO] running `"docker" "inspect" "1a2ff3e73a74f9fc0d83aef754e9cf989bc7c34344d02aad7924de8efe6fa5ff"`
[INFO] running `"docker" "rm" "-f" "1a2ff3e73a74f9fc0d83aef754e9cf989bc7c34344d02aad7924de8efe6fa5ff"`
[INFO] [stdout] 1a2ff3e73a74f9fc0d83aef754e9cf989bc7c34344d02aad7924de8efe6fa5ff
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=warn" "-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" "+beta-2020-06-03" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f29c9cb21ce876ff4c18bbaa7aae18b587adad3a83aa91e1da5bf710aa31104f
[INFO] running `"docker" "start" "-a" "f29c9cb21ce876ff4c18bbaa7aae18b587adad3a83aa91e1da5bf710aa31104f"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling loops_practice v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: function is never used: `fahrenheit_to_celsius_table`
[INFO] [stderr]  --> src/main.rs:3:4
[INFO] [stderr]   |
[INFO] [stderr] 3 | fn fahrenheit_to_celsius_table() {
[INFO] [stderr]   |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.42s
[INFO] running `"docker" "inspect" "f29c9cb21ce876ff4c18bbaa7aae18b587adad3a83aa91e1da5bf710aa31104f"`
[INFO] running `"docker" "rm" "-f" "f29c9cb21ce876ff4c18bbaa7aae18b587adad3a83aa91e1da5bf710aa31104f"`
[INFO] [stdout] f29c9cb21ce876ff4c18bbaa7aae18b587adad3a83aa91e1da5bf710aa31104f
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=warn" "-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" "+beta-2020-06-03" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 9ee731b3d7458f38537327d26e265aa1b2a1345ee7c58dbfab3fff073b67085c
[INFO] running `"docker" "start" "-a" "9ee731b3d7458f38537327d26e265aa1b2a1345ee7c58dbfab3fff073b67085c"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: function is never used: `fahrenheit_to_celsius_table`
[INFO] [stderr]  --> src/main.rs:3:4
[INFO] [stderr]   |
[INFO] [stderr] 3 | fn fahrenheit_to_celsius_table() {
[INFO] [stderr]   |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/loops_practice-c54d16b6b7ef1fbc
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "9ee731b3d7458f38537327d26e265aa1b2a1345ee7c58dbfab3fff073b67085c"`
[INFO] running `"docker" "rm" "-f" "9ee731b3d7458f38537327d26e265aa1b2a1345ee7c58dbfab3fff073b67085c"`
[INFO] [stdout] 9ee731b3d7458f38537327d26e265aa1b2a1345ee7c58dbfab3fff073b67085c