[INFO] cloning repository https://github.com/samp5/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/samp5/rust-os" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsamp5%2Frust-os", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsamp5%2Frust-os'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f3ed0af703c19239bc24ff833d04c20a0403c84c
[INFO] checking samp5/rust-os against master#ca77504943887037504c7fc0b9bf06dab3910373 for pr-145181
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsamp5%2Frust-os" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-4-tc1/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/samp5/rust-os
[INFO] finished tweaking git repo https://github.com/samp5/rust-os
[INFO] tweaked toml for git repo https://github.com/samp5/rust-os written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/samp5/rust-os on toolchain ca77504943887037504c7fc0b9bf06dab3910373
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ca77504943887037504c7fc0b9bf06dab3910373" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/samp5/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" "+ca77504943887037504c7fc0b9bf06dab3910373" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bootloader v0.9.30
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:ae6f63d130afcfff7f91f5ba9fdb2a74d52830289c6a2ea2d23a94dcfb480a0d" "/opt/rustwide/cargo-home/bin/cargo" "+ca77504943887037504c7fc0b9bf06dab3910373" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fa03d4b80f550bc2575f6742bcf2816eb42f9e708987ba3281dfae2a335aff0c
[INFO] running `Command { std: "docker" "start" "-a" "fa03d4b80f550bc2575f6742bcf2816eb42f9e708987ba3281dfae2a335aff0c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fa03d4b80f550bc2575f6742bcf2816eb42f9e708987ba3281dfae2a335aff0c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa03d4b80f550bc2575f6742bcf2816eb42f9e708987ba3281dfae2a335aff0c", kill_on_drop: false }`
[INFO] [stdout] fa03d4b80f550bc2575f6742bcf2816eb42f9e708987ba3281dfae2a335aff0c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=forbid" "-e" "RUSTDOCFLAGS=--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:ae6f63d130afcfff7f91f5ba9fdb2a74d52830289c6a2ea2d23a94dcfb480a0d" "/opt/rustwide/cargo-home/bin/cargo" "+ca77504943887037504c7fc0b9bf06dab3910373" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1300c2a20dfd20b081ce2bdfb4f64c4321767c94b5e9a6af8842270b5092a2e4
[INFO] running `Command { std: "docker" "start" "-a" "1300c2a20dfd20b081ce2bdfb4f64c4321767c94b5e9a6af8842270b5092a2e4", kill_on_drop: false }`
[INFO] [stderr]    Compiling bootloader v0.9.30
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking volatile v0.2.7
[INFO] [stderr]     Checking lazy_static v1.5.0
[INFO] [stderr]     Checking os 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] [stderr] error: could not compile `os` (bin "os") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "1300c2a20dfd20b081ce2bdfb4f64c4321767c94b5e9a6af8842270b5092a2e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1300c2a20dfd20b081ce2bdfb4f64c4321767c94b5e9a6af8842270b5092a2e4", kill_on_drop: false }`
[INFO] [stdout] 1300c2a20dfd20b081ce2bdfb4f64c4321767c94b5e9a6af8842270b5092a2e4