[INFO] cloning repository https://github.com/axiiomatic/ruste
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/axiiomatic/ruste" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faxiiomatic%2Fruste", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faxiiomatic%2Fruste'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5144e1a8029de6295fee8c80f77873ae17234ffe
[INFO] checking axiiomatic/ruste against try#c8bdaa84ec1b37f18f30375e196a65b7602f3790 for pr-73345
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faxiiomatic%2Fruste" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/axiiomatic/ruste on toolchain c8bdaa84ec1b37f18f30375e196a65b7602f3790
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/axiiomatic/ruste
[INFO] finished tweaking git repo https://github.com/axiiomatic/ruste
[INFO] tweaked toml for git repo https://github.com/axiiomatic/ruste written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/axiiomatic/ruste already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:6c9ffe128752d56c8d75334ed354142a5229917ed99767f56566dd8e857ad726" "/opt/rustwide/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1c8862997d7b1540f6a0c0aeac7e4bccca4d0cbf7f0bc5fc23be14893365f5e6
[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" "1c8862997d7b1540f6a0c0aeac7e4bccca4d0cbf7f0bc5fc23be14893365f5e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1c8862997d7b1540f6a0c0aeac7e4bccca4d0cbf7f0bc5fc23be14893365f5e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c8862997d7b1540f6a0c0aeac7e4bccca4d0cbf7f0bc5fc23be14893365f5e6", kill_on_drop: false }`
[INFO] [stdout] 1c8862997d7b1540f6a0c0aeac7e4bccca4d0cbf7f0bc5fc23be14893365f5e6
[INFO] running `Command { std: "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=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@sha256:6c9ffe128752d56c8d75334ed354142a5229917ed99767f56566dd8e857ad726" "/opt/rustwide/cargo-home/bin/cargo" "+c8bdaa84ec1b37f18f30375e196a65b7602f3790" "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] bf8626cb53c64dd53968cc2e2aa6190f6d679c5555e3a90d684823ec8fa9d556
[INFO] running `Command { std: "docker" "start" "-a" "bf8626cb53c64dd53968cc2e2aa6190f6d679c5555e3a90d684823ec8fa9d556", kill_on_drop: false }`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Checking learn2 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `my_arr`
[INFO] [stdout]  --> src/main.rs:2:6
[INFO] [stdout]   |
[INFO] [stdout] 2 |     let my_arr: [i64; 5] = [1, 2, 3, 4, 5];
[INFO] [stdout]   |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_my_arr`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `my_arr`
[INFO] [stdout]  --> src/main.rs:2:6
[INFO] [stdout]   |
[INFO] [stdout] 2 |     let my_arr: [i64; 5] = [1, 2, 3, 4, 5];
[INFO] [stdout]   |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_my_arr`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.37s
[INFO] running `Command { std: "docker" "inspect" "bf8626cb53c64dd53968cc2e2aa6190f6d679c5555e3a90d684823ec8fa9d556", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf8626cb53c64dd53968cc2e2aa6190f6d679c5555e3a90d684823ec8fa9d556", kill_on_drop: false }`
[INFO] [stdout] bf8626cb53c64dd53968cc2e2aa6190f6d679c5555e3a90d684823ec8fa9d556