[INFO] cloning repository https://github.com/jameson-pi/list_math
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jameson-pi/list_math" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjameson-pi%2Flist_math", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjameson-pi%2Flist_math'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2d649f67cd02a48b22c21e324cbd4c1970b20051
[INFO] checking jameson-pi/list_math against master#5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f for pr-87248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjameson-pi%2Flist_math" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jameson-pi/list_math on toolchain 5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jameson-pi/list_math
[INFO] finished tweaking git repo https://github.com/jameson-pi/list_math
[INFO] tweaked toml for git repo https://github.com/jameson-pi/list_math written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/jameson-pi/list_math already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "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] ec8f96f658c4344a6c48644f18c6ad678389ee7986bb14bae8275fe770089add
[INFO] running `Command { std: "docker" "start" "-a" "ec8f96f658c4344a6c48644f18c6ad678389ee7986bb14bae8275fe770089add", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ec8f96f658c4344a6c48644f18c6ad678389ee7986bb14bae8275fe770089add", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec8f96f658c4344a6c48644f18c6ad678389ee7986bb14bae8275fe770089add", kill_on_drop: false }`
[INFO] [stdout] ec8f96f658c4344a6c48644f18c6ad678389ee7986bb14bae8275fe770089add
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "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] 48c7c575b8dea9b4d859c215d6f287454ebaf2b0f8457c954cff3b8052653c64
[INFO] running `Command { std: "docker" "start" "-a" "48c7c575b8dea9b4d859c215d6f287454ebaf2b0f8457c954cff3b8052653c64", kill_on_drop: false }`
[INFO] [stderr]     Checking list_math v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: expected attribute, found derive macro `PartialOrd`
[INFO] [stdout]  --> src/lib.rs:3:3
[INFO] [stdout]   |
[INFO] [stdout] 3 | #[PartialOrd]
[INFO] [stdout]   |   ^^^^^^^^^^ not an attribute
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type parameter `x` should have an upper camel case name
[INFO] [stdout]  --> src/lib.rs:4:16
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn largest<x>(list: &[x]) -> x {
[INFO] [stdout]   |                ^ help: convert the identifier to upper camel case (notice the capitalization): `X`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0369]: binary operation `>` cannot be applied to type `x`
[INFO] [stdout]  --> src/lib.rs:7:17
[INFO] [stdout]   |
[INFO] [stdout] 7 |         if item > largest{
[INFO] [stdout]   |            ---- ^ ------- x
[INFO] [stdout]   |            |
[INFO] [stdout]   |            x
[INFO] [stdout]   |
[INFO] [stdout] help: consider restricting type parameter `x`
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn largest<x: std::cmp::PartialOrd>(list: &[x]) -> x {
[INFO] [stdout]   |                 ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0369`.
[INFO] [stdout] 
[INFO] [stdout] error: expected attribute, found derive macro `PartialOrd`
[INFO] [stdout]  --> src/lib.rs:3:3
[INFO] [stdout]   |
[INFO] [stdout] 3 | #[PartialOrd]
[INFO] [stdout]   |   ^^^^^^^^^^ not an attribute
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type parameter `x` should have an upper camel case name
[INFO] [stdout]  --> src/lib.rs:4:16
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn largest<x>(list: &[x]) -> x {
[INFO] [stdout]   |                ^ help: convert the identifier to upper camel case (notice the capitalization): `X`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `list_math` due to 3 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0369]: binary operation `>` cannot be applied to type `x`
[INFO] [stdout]  --> src/lib.rs:7:17
[INFO] [stdout]   |
[INFO] [stdout] 7 |         if item > largest{
[INFO] [stdout]   |            ---- ^ ------- x
[INFO] [stdout]   |            |
[INFO] [stdout]   |            x
[INFO] [stdout]   |
[INFO] [stdout] help: consider restricting type parameter `x`
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn largest<x: std::cmp::PartialOrd>(list: &[x]) -> x {
[INFO] [stdout]   |                 ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0369`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "48c7c575b8dea9b4d859c215d6f287454ebaf2b0f8457c954cff3b8052653c64", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48c7c575b8dea9b4d859c215d6f287454ebaf2b0f8457c954cff3b8052653c64", kill_on_drop: false }`
[INFO] [stdout] 48c7c575b8dea9b4d859c215d6f287454ebaf2b0f8457c954cff3b8052653c64