[INFO] cloning repository https://github.com/lucis-fluxum/os
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lucis-fluxum/os" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flucis-fluxum%2Fos", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flucis-fluxum%2Fos'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8aeff588f74f22dfd3f4d7053f9c044b808a05a4
[INFO] checking lucis-fluxum/os against try#353a0a223066e9f46a1d935f2271a26c3c5002bb for pr-75180
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flucis-fluxum%2Fos" "/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/lucis-fluxum/os on toolchain 353a0a223066e9f46a1d935f2271a26c3c5002bb
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+353a0a223066e9f46a1d935f2271a26c3c5002bb" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/lucis-fluxum/os
[INFO] removed 0 missing tests
[INFO] finished tweaking git repo https://github.com/lucis-fluxum/os
[INFO] tweaked toml for git repo https://github.com/lucis-fluxum/os written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/lucis-fluxum/os already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+353a0a223066e9f46a1d935f2271a26c3c5002bb" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/trashbyte/tinypci`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cpuio v0.3.0
[INFO] [stderr]   Downloaded pc-keyboard v0.5.1
[INFO] [stderr]   Downloaded linked_list_allocator v0.8.4
[INFO] [stderr]   Downloaded conquer-util v0.2.0
[INFO] [stderr]   Downloaded spinning_top v0.2.1
[INFO] [stderr]   Downloaded bootloader v0.9.8
[INFO] [stderr]   Downloaded pic8259_simple v0.2.0
[INFO] [stderr]   Downloaded spinning_top v0.1.1
[INFO] [stderr]   Downloaded volatile v0.3.0
[INFO] [stderr]   Downloaded uart_16550 v0.2.7
[INFO] [stderr]   Downloaded conquer-once v0.2.1
[INFO] [stderr]   Downloaded x86_64 v0.11.1
[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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+353a0a223066e9f46a1d935f2271a26c3c5002bb" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bcef3583293e8c0069ced4357f7c739aa2d5423b48c495831294cec719541b4a
[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" "bcef3583293e8c0069ced4357f7c739aa2d5423b48c495831294cec719541b4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bcef3583293e8c0069ced4357f7c739aa2d5423b48c495831294cec719541b4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bcef3583293e8c0069ced4357f7c739aa2d5423b48c495831294cec719541b4a", kill_on_drop: false }`
[INFO] [stdout] bcef3583293e8c0069ced4357f7c739aa2d5423b48c495831294cec719541b4a
[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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+353a0a223066e9f46a1d935f2271a26c3c5002bb" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 15b52e6e95466dd3e8a814b14354c7a4346c7c1fc0041534749b2bf7ca0c76f7
[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" "15b52e6e95466dd3e8a814b14354c7a4346c7c1fc0041534749b2bf7ca0c76f7", kill_on_drop: false }`
[INFO] [stderr] error: "/opt/rustwide/rustup-home/toolchains/353a0a223066e9f46a1d935f2271a26c3c5002bb/lib/rustlib/src/rust/Cargo.lock" does not exist, unable to build with the standard library, try:
[INFO] [stderr]         rustup component add rust-src
[INFO] running `Command { std: "docker" "inspect" "15b52e6e95466dd3e8a814b14354c7a4346c7c1fc0041534749b2bf7ca0c76f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15b52e6e95466dd3e8a814b14354c7a4346c7c1fc0041534749b2bf7ca0c76f7", kill_on_drop: false }`
[INFO] [stdout] 15b52e6e95466dd3e8a814b14354c7a4346c7c1fc0041534749b2bf7ca0c76f7