[INFO] updating cached repository https://github.com/andela-fabolaji/rust_learning
[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] 4c7c5852d101cdad93be8c01b853bfd6ba4aced6
[INFO] checking andela-fabolaji/rust_learning against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandela-fabolaji%2Frust_learning" "/workspace/builds/worker-9/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/andela-fabolaji/rust_learning on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/andela-fabolaji/rust_learning
[INFO] finished tweaking git repo https://github.com/andela-fabolaji/rust_learning
[INFO] tweaked toml for git repo https://github.com/andela-fabolaji/rust_learning written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/andela-fabolaji/rust_learning already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "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] dcfd102036ceef7642a9bc25f78e00f26dcad16417991e6cb039ae73a323fc28
[INFO] running `"docker" "start" "-a" "dcfd102036ceef7642a9bc25f78e00f26dcad16417991e6cb039ae73a323fc28"`
[INFO] [stderr]     Checking rust_learning v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0599]: no method named `cmp` found for type `f32` in the current scope
[INFO] [stderr]   --> src/control_flow.rs:14:21
[INFO] [stderr]    |
[INFO] [stderr] 14 |   match temperature.cmp(&standard_temperature) {
[INFO] [stderr]    |                     ^^^ method not found in `f32`
[INFO] [stderr]    |
[INFO] [stderr]    = note: the method `cmp` exists but the following trait bounds were not satisfied:
[INFO] [stderr]            `f32: std::iter::Iterator`
[INFO] [stderr]            which is required by `&mut f32: std::iter::Iterator`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0599`.
[INFO] [stderr] error: could not compile `rust_learning`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0599]: no method named `cmp` found for type `f32` in the current scope
[INFO] [stderr]   --> src/control_flow.rs:14:21
[INFO] [stderr]    |
[INFO] [stderr] 14 |   match temperature.cmp(&standard_temperature) {
[INFO] [stderr]    |                     ^^^ method not found in `f32`
[INFO] [stderr]    |
[INFO] [stderr]    = note: the method `cmp` exists but the following trait bounds were not satisfied:
[INFO] [stderr]            `f32: std::iter::Iterator`
[INFO] [stderr]            which is required by `&mut f32: std::iter::Iterator`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0599`.
[INFO] [stderr] error: could not compile `rust_learning`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "dcfd102036ceef7642a9bc25f78e00f26dcad16417991e6cb039ae73a323fc28"`
[INFO] running `"docker" "rm" "-f" "dcfd102036ceef7642a9bc25f78e00f26dcad16417991e6cb039ae73a323fc28"`
[INFO] [stdout] dcfd102036ceef7642a9bc25f78e00f26dcad16417991e6cb039ae73a323fc28