[INFO] cloning repository https://github.com/andela-fabolaji/rust_learning
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/andela-fabolaji/rust_learning" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandela-fabolaji%2Frust_learning", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandela-fabolaji%2Frust_learning'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4c7c5852d101cdad93be8c01b853bfd6ba4aced6
[INFO] checking andela-fabolaji/rust_learning against try#ddfd70ee3c3748e597b32f416b0d15a4f6e37685 for pr-87050
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandela-fabolaji%2Frust_learning" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/andela-fabolaji/rust_learning on toolchain ddfd70ee3c3748e597b32f416b0d15a4f6e37685
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-6/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 `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 34017b8104f3ea1ae9b6d08a8f10c937577de3312fe3a4460d2bdf70e4586895
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "34017b8104f3ea1ae9b6d08a8f10c937577de3312fe3a4460d2bdf70e4586895", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "34017b8104f3ea1ae9b6d08a8f10c937577de3312fe3a4460d2bdf70e4586895", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34017b8104f3ea1ae9b6d08a8f10c937577de3312fe3a4460d2bdf70e4586895", kill_on_drop: false }`
[INFO] [stdout] 34017b8104f3ea1ae9b6d08a8f10c937577de3312fe3a4460d2bdf70e4586895
[INFO] running `Command { std: "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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6a75b13a53319df38fceb4985951554929ebb646c6a8001a30cfdf836fed951f
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "6a75b13a53319df38fceb4985951554929ebb646c6a8001a30cfdf836fed951f", kill_on_drop: false }`
[INFO] [stderr]     Checking rust_learning v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0599]: the method `cmp` exists for type `f32`, but its trait bounds were not satisfied
[INFO] [stdout]   --> src/control_flow.rs:14:21
[INFO] [stdout]    |
[INFO] [stdout] 14 |   match temperature.cmp(&standard_temperature) {
[INFO] [stdout]    |                     ^^^ method cannot be called on `f32` due to unsatisfied trait bounds
[INFO] [stdout]    |
[INFO] [stdout]    = note: the following trait bounds were not satisfied:
[INFO] [stdout]            `f32: Iterator`
[INFO] [stdout]            which is required by `&mut f32: Iterator`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[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] [stdout] error[E0599]: the method `cmp` exists for type `f32`, but its trait bounds were not satisfied
[INFO] [stdout]   --> src/control_flow.rs:14:21
[INFO] [stdout]    |
[INFO] [stdout] 14 |   match temperature.cmp(&standard_temperature) {
[INFO] [stdout]    |                     ^^^ method cannot be called on `f32` due to unsatisfied trait bounds
[INFO] [stdout]    |
[INFO] [stdout]    = note: the following trait bounds were not satisfied:
[INFO] [stdout]            `f32: Iterator`
[INFO] [stdout]            which is required by `&mut f32: Iterator`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "6a75b13a53319df38fceb4985951554929ebb646c6a8001a30cfdf836fed951f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a75b13a53319df38fceb4985951554929ebb646c6a8001a30cfdf836fed951f", kill_on_drop: false }`
[INFO] [stdout] 6a75b13a53319df38fceb4985951554929ebb646c6a8001a30cfdf836fed951f