[INFO] cloning repository https://github.com/nirya-istari/dumb_os [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nirya-istari/dumb_os" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnirya-istari%2Fdumb_os", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnirya-istari%2Fdumb_os'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 59c05f2af2e462d8c390cdac802137438173cdb1 [INFO] checking nirya-istari/dumb_os against master#836c31742687ba4e2f857b5b698e1e9e6b67619c for pr-81789 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnirya-istari%2Fdumb_os" "/workspace/builds/worker-3/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/nirya-istari/dumb_os on toolchain 836c31742687ba4e2f857b5b698e1e9e6b67619c [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/nirya-istari/dumb_os [INFO] finished tweaking git repo https://github.com/nirya-istari/dumb_os [INFO] tweaked toml for git repo https://github.com/nirya-istari/dumb_os written to /workspace/builds/worker-3/source/Cargo.toml [INFO] crate git repo https://github.com/nirya-istari/dumb_os already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "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] 79273aad35980c25256fa0f579c54a97101db5bfaacfbffdff5607f93510b42b [INFO] running `Command { std: "docker" "start" "-a" "79273aad35980c25256fa0f579c54a97101db5bfaacfbffdff5607f93510b42b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "79273aad35980c25256fa0f579c54a97101db5bfaacfbffdff5607f93510b42b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "79273aad35980c25256fa0f579c54a97101db5bfaacfbffdff5607f93510b42b", kill_on_drop: false }` [INFO] [stdout] 79273aad35980c25256fa0f579c54a97101db5bfaacfbffdff5607f93510b42b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] a4ff541f4a8ab70ff9de7f3fd1629d6f3477891bc4f268f593091d1160095712 [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" "a4ff541f4a8ab70ff9de7f3fd1629d6f3477891bc4f268f593091d1160095712", kill_on_drop: false }` [INFO] [stderr] Checking futures-core v0.3.14 [INFO] [stderr] Checking futures-sink v0.3.14 [INFO] [stderr] Compiling x86_64 v0.14.0 [INFO] [stderr] Checking rand_core v0.6.2 [INFO] [stderr] Compiling bootloader v0.10.1 [INFO] [stderr] Checking futures-io v0.3.14 [INFO] [stderr] Checking volatile v0.4.4 [INFO] [stderr] Checking bit_field v0.9.0 [INFO] [stderr] Checking conquer-util v0.3.0 [INFO] [stderr] Checking cpuio v0.3.0 [INFO] [stderr] Checking byteorder v1.4.3 [INFO] [stderr] Checking volatile v0.2.7 [INFO] [stderr] Checking pc-keyboard v0.5.1 [INFO] [stderr] Checking ux v0.1.3 [INFO] [stderr] Checking smallvec v1.6.1 [INFO] [stderr] Checking gimli v0.23.0 [INFO] [stderr] Compiling crossbeam-utils v0.8.3 [INFO] [stderr] Compiling memoffset v0.6.3 [INFO] [stderr] Checking lock_api v0.3.4 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Checking bootloader-locator v0.0.4 [INFO] [stderr] Checking conquer-once v0.3.2 [INFO] [stderr] Compiling proc-macro2 v1.0.26 [INFO] [stderr] Checking futures-channel v0.3.14 [INFO] [stderr] Checking pic8259_simple v0.2.0 [INFO] [stderr] Checking libc v0.2.93 [INFO] [stderr] Checking log v0.4.14 [INFO] [stderr] Checking rand v0.8.3 [INFO] [stderr] Checking rand_pcg v0.3.0 [INFO] [stderr] Checking regex v1.4.6 [INFO] [stderr] Compiling field-offset v0.3.3 [INFO] [stderr] Checking spinning_top v0.1.1 [INFO] [stderr] Checking linked_list_allocator v0.8.11 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Checking crossbeam-epoch v0.9.3 [INFO] [stderr] Checking crossbeam-queue v0.3.1 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Compiling syn v1.0.70 [INFO] [stderr] Checking crossbeam v0.8.0 [INFO] [stderr] Checking env_logger v0.7.1 [INFO] [stderr] Checking pretty_env_logger v0.4.0 [INFO] [stderr] Checking builder v0.1.0 (/opt/rustwide/workdir/builder) [INFO] [stderr] Compiling futures-macro v0.3.14 [INFO] [stderr] Checking futures-util v0.3.14 [INFO] [stderr] Checking futures v0.3.14 [INFO] [stderr] Checking dumb_os v0.1.0 (/opt/rustwide/workdir/kernel) [INFO] [stdout] error: language item required, but not found: `eh_personality` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: `#[alloc_error_handler]` function required, but not found. [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] note: Use `#![feature(default_alloc_error_handler)]` for a default error handler. [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 2 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `dumb_os` [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: build failed [INFO] running `Command { std: "docker" "inspect" "a4ff541f4a8ab70ff9de7f3fd1629d6f3477891bc4f268f593091d1160095712", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a4ff541f4a8ab70ff9de7f3fd1629d6f3477891bc4f268f593091d1160095712", kill_on_drop: false }` [INFO] [stdout] a4ff541f4a8ab70ff9de7f3fd1629d6f3477891bc4f268f593091d1160095712