[INFO] cloning repository https://github.com/tuyennguyentech/rust-os
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tuyennguyentech/rust-os" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftuyennguyentech%2Frust-os", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftuyennguyentech%2Frust-os'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 87aaa4256aa031623ff844c3f1357ab6d2611bba
[INFO] checking tuyennguyentech/rust-os against 98fd715edd3a0a5aa8f2041d7e20a3143b0fc0d3 for pr-160235-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftuyennguyentech%2Frust-os" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/tuyennguyentech/rust-os
[INFO] finished tweaking git repo https://github.com/tuyennguyentech/rust-os
[INFO] tweaked toml for git repo https://github.com/tuyennguyentech/rust-os written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/tuyennguyentech/rust-os on toolchain 98fd715edd3a0a5aa8f2041d7e20a3143b0fc0d3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+98fd715edd3a0a5aa8f2041d7e20a3143b0fc0d3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/tuyennguyentech/rust-os already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+98fd715edd3a0a5aa8f2041d7e20a3143b0fc0d3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: binary `rust_os` should have a kebab-case name
[INFO] [stderr]   |
[INFO] [stderr] 1 | /workspace/builds/worker-7-tc1/source/target/.../rust_os
[INFO] [stderr]   |                                                  ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `cargo::non_kebab_case_bins` is set to `warn` by default
[INFO] [stderr] help: to change the binary name to `rust-os`, convert `bin.name`
[INFO] [stderr]  --> Cargo.toml:3:8
[INFO] [stderr]   |
[INFO] [stderr] 3 - name = "rust_os"
[INFO] [stderr] 3 + name = "rust-os"
[INFO] [stderr]   |
[INFO] [stderr] warning: `rust_os` (manifest) generated 1 warning
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:8683fc1fc2eb5c9ac98e0d076ab094b2ffac7f99da555d2b6a2e27f346de2ec7" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 0093d4eafd57537f1ac90c1d3d7171be4d73f6757775e860cc087f5d09dbe735
[INFO] running `Command { std: "docker" "start" "0093d4eafd57537f1ac90c1d3d7171be4d73f6757775e860cc087f5d09dbe735", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0093d4eafd57537f1ac90c1d3d7171be4d73f6757775e860cc087f5d09dbe735", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "0093d4eafd57537f1ac90c1d3d7171be4d73f6757775e860cc087f5d09dbe735" "/opt/rustwide/cargo-home/bin/cargo" "+98fd715edd3a0a5aa8f2041d7e20a3143b0fc0d3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0093d4eafd57537f1ac90c1d3d7171be4d73f6757775e860cc087f5d09dbe735", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-w" "/opt/rustwide/workdir" "--user" "0:0" "0093d4eafd57537f1ac90c1d3d7171be4d73f6757775e860cc087f5d09dbe735" "/opt/rustwide/cargo-home/bin/cargo" "+98fd715edd3a0a5aa8f2041d7e20a3143b0fc0d3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] warning: binary `rust_os` should have a kebab-case name
[INFO] [stderr]   |
[INFO] [stderr] 1 | /opt/rustwide/target/.../rust_os
[INFO] [stderr]   |                          ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `cargo::non_kebab_case_bins` is set to `warn` by default
[INFO] [stderr] help: to change the binary name to `rust-os`, convert `bin.name`
[INFO] [stderr]  --> Cargo.toml:3:8
[INFO] [stderr]   |
[INFO] [stderr] 3 - name = "rust_os"
[INFO] [stderr] 3 + name = "rust-os"
[INFO] [stderr]   |
[INFO] [stderr] warning: `rust_os` (manifest) generated 1 warning
[INFO] [stderr]     Checking rust_os v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.14s
[INFO] running `Command { std: "docker" "inspect" "0093d4eafd57537f1ac90c1d3d7171be4d73f6757775e860cc087f5d09dbe735", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0093d4eafd57537f1ac90c1d3d7171be4d73f6757775e860cc087f5d09dbe735", kill_on_drop: false }`
[INFO] [stdout] 0093d4eafd57537f1ac90c1d3d7171be4d73f6757775e860cc087f5d09dbe735