[INFO] cloning repository https://github.com/Tauheed-Elahee/Discoverable
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Tauheed-Elahee/Discoverable" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTauheed-Elahee%2FDiscoverable", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTauheed-Elahee%2FDiscoverable'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 74d8c0524be630029c42bf37272067b1e48a4301
[INFO] checking Tauheed-Elahee/Discoverable against try#cac44d9528e3bbbdaa1537d187bd489ccc5de18c for pr-91141
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTauheed-Elahee%2FDiscoverable" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Tauheed-Elahee/Discoverable on toolchain cac44d9528e3bbbdaa1537d187bd489ccc5de18c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Tauheed-Elahee/Discoverable
[INFO] finished tweaking git repo https://github.com/Tauheed-Elahee/Discoverable
[INFO] tweaked toml for git repo https://github.com/Tauheed-Elahee/Discoverable written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/Tauheed-Elahee/Discoverable already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/woboq/qmetaobject-rs`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cpp_common v0.5.6
[INFO] [stderr]   Downloaded cpp_macros v0.5.6
[INFO] [stderr]   Downloaded cpp_build v0.5.6
[INFO] [stderr]   Downloaded cpp v0.5.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "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] 34dd35445262d4a3ea8b1c19bfa2d39ffb3edf94615b7cdd4c94a568d3cc029f
[INFO] running `Command { std: "docker" "start" "-a" "34dd35445262d4a3ea8b1c19bfa2d39ffb3edf94615b7cdd4c94a568d3cc029f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "34dd35445262d4a3ea8b1c19bfa2d39ffb3edf94615b7cdd4c94a568d3cc029f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34dd35445262d4a3ea8b1c19bfa2d39ffb3edf94615b7cdd4c94a568d3cc029f", kill_on_drop: false }`
[INFO] [stdout] 34dd35445262d4a3ea8b1c19bfa2d39ffb3edf94615b7cdd4c94a568d3cc029f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8069ae8c32f7ed60425ac7140cac9c626705d1bba120df1bcfc81bd5595f39d2
[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" "8069ae8c32f7ed60425ac7140cac9c626705d1bba120df1bcfc81bd5595f39d2", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling syn v1.0.58
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling regex-syntax v0.6.22
[INFO] [stderr]    Compiling if_rust_version v1.0.0
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling cc v1.0.66
[INFO] [stderr]    Compiling byteorder v1.4.2
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking log v0.4.13
[INFO] [stderr]    Compiling thread_local v1.1.0
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling aho-corasick v0.7.15
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]    Compiling regex v1.4.3
[INFO] [stderr]    Compiling cpp_common v0.5.6
[INFO] [stderr]    Compiling cpp_build v0.5.6
[INFO] [stderr]    Compiling cpp_macros v0.5.6
[INFO] [stderr]    Compiling qmetaobject v0.1.4 (https://github.com/woboq/qmetaobject-rs#3c8c4f91)
[INFO] [stderr]    Compiling qmetaobject_impl v0.1.4 (https://github.com/woboq/qmetaobject-rs#3c8c4f91)
[INFO] [stderr]     Checking cpp v0.5.6
[INFO] [stderr]     Checking Discoverable v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `Discoverable` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout]   = help: convert the identifier to snake case: `discoverable`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `Discoverable` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout]   = help: convert the identifier to snake case: `discoverable`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 02s
[INFO] running `Command { std: "docker" "inspect" "8069ae8c32f7ed60425ac7140cac9c626705d1bba120df1bcfc81bd5595f39d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8069ae8c32f7ed60425ac7140cac9c626705d1bba120df1bcfc81bd5595f39d2", kill_on_drop: false }`
[INFO] [stdout] 8069ae8c32f7ed60425ac7140cac9c626705d1bba120df1bcfc81bd5595f39d2