[INFO] cloning repository https://github.com/hwuhsi/myos
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hwuhsi/myos" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhwuhsi%2Fmyos", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhwuhsi%2Fmyos'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9df1c045259fc7cb50e13cc85c700c25bdf32c63
[INFO] checking hwuhsi/myos against try#15a786332e2f0dd343b226ab6bb8ec028a350f73 for pr-81782
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhwuhsi%2Fmyos" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hwuhsi/myos on toolchain 15a786332e2f0dd343b226ab6bb8ec028a350f73
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/hwuhsi/myos
[INFO] finished tweaking git repo https://github.com/hwuhsi/myos
[INFO] tweaked toml for git repo https://github.com/hwuhsi/myos written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/hwuhsi/myos already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/rcore-os/apic-rs`
[INFO] [stderr]     Updating git repository `https://github.com/rcore-os/ext2-rs`
[INFO] [stderr]     Updating git repository `https://github.com/rcore-os/isomorphic_drivers`
[INFO] [stderr]     Updating git repository `https://github.com/rcore-os/pci-rs`
[INFO] [stderr]     Updating git repository `https://github.com/rcore-os/rcore-fs`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded filetime v0.2.14
[INFO] [stderr]   Downloaded bit_field v0.9.0
[INFO] [stderr]   Downloaded zero v0.1.2
[INFO] [stderr]   Downloaded funty v1.2.0
[INFO] [stderr]   Downloaded cpuio v0.3.0
[INFO] [stderr]   Downloaded bitvec v0.21.0
[INFO] [stderr]   Downloaded raw-cpuid v8.0.0
[INFO] [stderr]   Downloaded volatile v0.2.7
[INFO] [stderr]   Downloaded static_assertions v0.3.4
[INFO] [stderr]   Downloaded x86_64 v0.13.2
[INFO] [stderr]   Downloaded rlibc v1.0.0
[INFO] [stderr]   Downloaded pic8259_simple v0.2.0
[INFO] [stderr]   Downloaded raw-cpuid v9.0.0
[INFO] [stderr]   Downloaded spin v0.4.10
[INFO] [stderr]   Downloaded radium v0.6.2
[INFO] [stderr]   Downloaded bootloader v0.9.12
[INFO] [stderr]   Downloaded spinning_top v0.1.1
[INFO] [stderr]   Downloaded bit_field v0.10.1
[INFO] [stderr]   Downloaded linked_list_allocator v0.8.11
[INFO] [stderr]   Downloaded pc-keyboard v0.5.1
[INFO] [stderr]   Downloaded genfs v0.1.4
[INFO] [stderr]   Downloaded x86 v0.33.0
[INFO] [stderr]   Downloaded xmas-elf v0.7.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "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] db8c0531c13a8fc677c0c3d5e9df6d1bcc05e1c821abd96c229c759b71cf6900
[INFO] running `Command { std: "docker" "start" "-a" "db8c0531c13a8fc677c0c3d5e9df6d1bcc05e1c821abd96c229c759b71cf6900", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "db8c0531c13a8fc677c0c3d5e9df6d1bcc05e1c821abd96c229c759b71cf6900", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db8c0531c13a8fc677c0c3d5e9df6d1bcc05e1c821abd96c229c759b71cf6900", kill_on_drop: false }`
[INFO] [stdout] db8c0531c13a8fc677c0c3d5e9df6d1bcc05e1c821abd96c229c759b71cf6900
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+15a786332e2f0dd343b226ab6bb8ec028a350f73" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 37cc994d9f2e657c7bc41aec365040d0b88c831d4269b553c284963fa810354b
[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" "37cc994d9f2e657c7bc41aec365040d0b88c831d4269b553c284963fa810354b", kill_on_drop: false }`
[INFO] [stderr] error: "/opt/rustwide/rustup-home/toolchains/15a786332e2f0dd343b226ab6bb8ec028a350f73/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" "37cc994d9f2e657c7bc41aec365040d0b88c831d4269b553c284963fa810354b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37cc994d9f2e657c7bc41aec365040d0b88c831d4269b553c284963fa810354b", kill_on_drop: false }`
[INFO] [stdout] 37cc994d9f2e657c7bc41aec365040d0b88c831d4269b553c284963fa810354b