[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 beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandela-fabolaji%2Frust_learning" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/andela-fabolaji/rust_learning on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", 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-4/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" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "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" "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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7a2b46cc2cb7fd76e1445bbc8712511ddba03ff7e3d5c908a9f5fb5a7386c25b
[INFO] running `Command { std: "docker" "start" "-a" "7a2b46cc2cb7fd76e1445bbc8712511ddba03ff7e3d5c908a9f5fb5a7386c25b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7a2b46cc2cb7fd76e1445bbc8712511ddba03ff7e3d5c908a9f5fb5a7386c25b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a2b46cc2cb7fd76e1445bbc8712511ddba03ff7e3d5c908a9f5fb5a7386c25b", kill_on_drop: false }`
[INFO] [stdout] 7a2b46cc2cb7fd76e1445bbc8712511ddba03ff7e3d5c908a9f5fb5a7386c25b
[INFO] running `Command { std: "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" "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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d92df2930ebb4134ddb0c4f4fed145903154036aa6b1db3a126cc4d9870ed740
[INFO] running `Command { std: "docker" "start" "-a" "d92df2930ebb4134ddb0c4f4fed145903154036aa6b1db3a126cc4d9870ed740", kill_on_drop: false }`
[INFO] [stderr]     Checking rust_learning v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0599]: no method named `cmp` found for type `f32` in the current scope
[INFO] [stdout]   --> src/control_flow.rs:14:21
[INFO] [stdout]    |
[INFO] [stdout] 14 |   match temperature.cmp(&standard_temperature) {
[INFO] [stdout]    |                     ^^^ method not found in `f32`
[INFO] [stdout]    |
[INFO] [stdout]    = note: the method `cmp` exists but 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] [stderr] error: could not compile `rust_learning`
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[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]: no method named `cmp` found for type `f32` in the current scope
[INFO] [stdout]   --> src/control_flow.rs:14:21
[INFO] [stdout]    |
[INFO] [stdout] 14 |   match temperature.cmp(&standard_temperature) {
[INFO] [stdout]    |                     ^^^ method not found in `f32`
[INFO] [stdout]    |
[INFO] [stdout]    = note: the method `cmp` exists but 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" "d92df2930ebb4134ddb0c4f4fed145903154036aa6b1db3a126cc4d9870ed740", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d92df2930ebb4134ddb0c4f4fed145903154036aa6b1db3a126cc4d9870ed740", kill_on_drop: false }`
[INFO] [stdout] d92df2930ebb4134ddb0c4f4fed145903154036aa6b1db3a126cc4d9870ed740