[INFO] cloning repository https://github.com/MarognaLorenzo/MarOS
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/MarognaLorenzo/MarOS" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMarognaLorenzo%2FMarOS", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMarognaLorenzo%2FMarOS'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 592b053d3172d7e2d8afb26a3c3cf4aae75795fc
[INFO] checking MarognaLorenzo/MarOS against master#506512391b1a75ae450d36c9420978402a91abcc for pr-125384
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMarognaLorenzo%2FMarOS" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/MarognaLorenzo/MarOS on toolchain 506512391b1a75ae450d36c9420978402a91abcc
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-2-tc1/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/MarognaLorenzo/MarOS
[INFO] removed 0 missing tests
[INFO] finished tweaking git repo https://github.com/MarognaLorenzo/MarOS
[INFO] tweaked toml for git repo https://github.com/MarognaLorenzo/MarOS written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/MarognaLorenzo/MarOS 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" "+506512391b1a75ae450d36c9420978402a91abcc" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pc-keyboard v0.7.0
[INFO] [stderr]   Downloaded x86_64 v0.14.10
[INFO] [stderr]   Downloaded pic8259 v0.10.3
[INFO] [stderr]   Downloaded uart_16550 v0.2.18
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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:beeedbb442662e57d416641ecc3200b38e573c25b057896194468d05594dd835" "/opt/rustwide/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7aae98082183aab8001920eae02e95183c54114637e8cfb0a56e0469e6e79590
[INFO] running `Command { std: "docker" "start" "-a" "7aae98082183aab8001920eae02e95183c54114637e8cfb0a56e0469e6e79590", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7aae98082183aab8001920eae02e95183c54114637e8cfb0a56e0469e6e79590", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7aae98082183aab8001920eae02e95183c54114637e8cfb0a56e0469e6e79590", kill_on_drop: false }`
[INFO] [stdout] 7aae98082183aab8001920eae02e95183c54114637e8cfb0a56e0469e6e79590
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-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:beeedbb442662e57d416641ecc3200b38e573c25b057896194468d05594dd835" "/opt/rustwide/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bcde0d6912ab51f9aad58d57e721e3f88ff7167672df7f7b79b704bbcf0f0fb8
[INFO] running `Command { std: "docker" "start" "-a" "bcde0d6912ab51f9aad58d57e721e3f88ff7167672df7f7b79b704bbcf0f0fb8", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustversion v1.0.12
[INFO] [stderr]     Checking volatile v0.4.6
[INFO] [stderr]     Checking bit_field v0.10.2
[INFO] [stderr]    Compiling bootloader v0.9.23
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking pc-keyboard v0.7.0
[INFO] [stderr]     Checking spinning_top v0.2.5
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]     Checking linked_list_allocator v0.9.1
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking x86_64 v0.14.10
[INFO] [stderr]     Checking pic8259 v0.10.3
[INFO] [stderr]     Checking uart_16550 v0.2.18
[INFO] [stderr]     Checking MarOS v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: unwinding panics are not supported without std
[INFO] [stdout]   |
[INFO] [stdout]   = help: using nightly cargo, use -Zbuild-std with panic="abort" to avoid unwinding
[INFO] [stdout]   = note: since the core library is usually precompiled with panic="unwind", rebuilding your crate with panic="abort" may not be enough to fix the problem
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `MarOS` (lib test) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "bcde0d6912ab51f9aad58d57e721e3f88ff7167672df7f7b79b704bbcf0f0fb8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bcde0d6912ab51f9aad58d57e721e3f88ff7167672df7f7b79b704bbcf0f0fb8", kill_on_drop: false }`
[INFO] [stdout] bcde0d6912ab51f9aad58d57e721e3f88ff7167672df7f7b79b704bbcf0f0fb8