[INFO] crate functional 0.0.7 is already in cache
[INFO] testing functional-0.0.7 against 1.44.0 for beta-1.45-1
[INFO] extracting crate functional 0.0.7 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate functional 0.0.7 on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate functional 0.0.7
[INFO] finished tweaking crates.io crate functional 0.0.7
[INFO] tweaked toml for crates.io crate functional 0.0.7 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+1.44.0" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 170d0eb9687e65dc6d79ee89fce67657e7d76ddafb8427e7d9938f1bb01e14d1
[INFO] running `"docker" "start" "-a" "170d0eb9687e65dc6d79ee89fce67657e7d76ddafb8427e7d9938f1bb01e14d1"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling functional v0.0.7 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0433]: failed to resolve: could not find `Zero` in `num`
[INFO] [stderr]   --> src/algebra/ops.rs:45:20
[INFO] [stderr]    |
[INFO] [stderr] 45 |         <T as num::Zero>::zero()
[INFO] [stderr]    |                    ^^^^ could not find `Zero` in `num`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: could not find `One` in `num`
[INFO] [stderr]    --> src/algebra/ops.rs:128:20
[INFO] [stderr]     |
[INFO] [stderr] 128 |         <T as num::One>::one()
[INFO] [stderr]     |                    ^^^ could not find `One` in `num`
[INFO] [stderr] 
[INFO] [stderr] error[E0405]: cannot find trait `Zero` in module `num`
[INFO] [stderr]   --> src/algebra/ops.rs:42:19
[INFO] [stderr]    |
[INFO] [stderr] 42 |     where T: num::Zero + ops::Add<Output = T>
[INFO] [stderr]    |                   ^^^^ not found in `num`
[INFO] [stderr] 
[INFO] [stderr] error[E0405]: cannot find trait `One` in module `num`
[INFO] [stderr]    --> src/algebra/ops.rs:125:19
[INFO] [stderr]     |
[INFO] [stderr] 125 |     where T: num::One + ops::Mul<Output = T>
[INFO] [stderr]     |                   ^^^ not found in `num`
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stderr]  --> src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(zero_one, type_macros)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 5 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0405, E0433, E0554.
[INFO] [stderr] For more information about an error, try `rustc --explain E0405`.
[INFO] [stderr] error: could not compile `functional`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "170d0eb9687e65dc6d79ee89fce67657e7d76ddafb8427e7d9938f1bb01e14d1"`
[INFO] running `"docker" "rm" "-f" "170d0eb9687e65dc6d79ee89fce67657e7d76ddafb8427e7d9938f1bb01e14d1"`
[INFO] [stdout] 170d0eb9687e65dc6d79ee89fce67657e7d76ddafb8427e7d9938f1bb01e14d1