[INFO] cloning repository https://github.com/alethkit/cam_dos
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/alethkit/cam_dos" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falethkit%2Fcam_dos", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falethkit%2Fcam_dos'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c00e6f0c7b9b221dfc28154b5d4038968de561e9
[INFO] testing alethkit/cam_dos against beta-2021-09-08 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falethkit%2Fcam_dos" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/alethkit/cam_dos on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-12/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/alethkit/cam_dos
[INFO] finished tweaking git repo https://github.com/alethkit/cam_dos
[INFO] tweaked toml for git repo https://github.com/alethkit/cam_dos written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/alethkit/cam_dos already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/tock/tock/`
[INFO] [stderr]     Updating git submodule `https://git.qemu.org/git/qemu.git`
[INFO] [stderr]     Updating git submodule `https://git.qemu.org/git/capstone.git`
[INFO] [stderr]     Updating git submodule `https://git.qemu.org/git/dtc.git`
[INFO] [stderr]     Updating git submodule `https://git.qemu.org/git/QemuMacDrivers.git`
[INFO] [stderr]     Updating git submodule `https://git.qemu.org/git/SLOF.git`
[INFO] [stderr]     Updating git submodule `https://git.qemu.org/git/edk2.git`
[INFO] [stderr]     Updating git submodule `https://github.com/openssl/openssl`
[INFO] [stderr]     Updating git submodule `https://boringssl.googlesource.com/boringssl`
[INFO] [stderr]     Updating git submodule `https://github.com/krb5/krb5`
[INFO] [stderr]     Updating git submodule `https://github.com/pyca/cryptography.git`
[INFO] [stderr]     Updating git submodule `https://github.com/ucb-bar/berkeley-softfloat-3.git`
[INFO] [stderr]     Updating git submodule `https://git.qemu.org/git/ipxe.git`
[INFO] [stderr]     Updating git submodule `https://git.qemu.org/git/openbios.git`
[INFO] [stderr]     Updating git submodule `https://git.qemu.org/git/opensbi.git`
[INFO] [stderr]     Updating git submodule `https://github.com/bonzini/qboot`
[INFO] [stderr]     Updating git submodule `https://git.qemu.org/git/qemu-palcode.git`
[INFO] [stderr]     Updating git submodule `https://git.qemu.org/git/seabios.git/`
[INFO] [stderr]     Updating git submodule `https://git.qemu.org/git/seabios-hppa.git`
[INFO] [stderr]     Updating git submodule `https://git.qemu.org/git/sgabios.git`
[INFO] [stderr]     Updating git submodule `https://git.qemu.org/git/skiboot.git`
[INFO] [stderr]     Updating git submodule `https://git.qemu.org/git/u-boot.git`
[INFO] [stderr]     Updating git submodule `https://git.qemu.org/git/u-boot-sam460ex.git`
[INFO] [stderr]     Updating git submodule `https://git.qemu.org/git/libslirp.git`
[INFO] [stderr]     Updating git submodule `https://git.qemu.org/git/berkeley-softfloat-3.git`
[INFO] [stderr]     Updating git submodule `https://git.qemu.org/git/berkeley-testfloat-3.git`
[INFO] [stderr]     Updating git submodule `https://git.qemu.org/git/keycodemapdb.git`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 64c8d2aa7cc3f2e6f1feb5979f012323b1890810c317caa3494802ac02ba7cc3
[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" "64c8d2aa7cc3f2e6f1feb5979f012323b1890810c317caa3494802ac02ba7cc3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "64c8d2aa7cc3f2e6f1feb5979f012323b1890810c317caa3494802ac02ba7cc3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "64c8d2aa7cc3f2e6f1feb5979f012323b1890810c317caa3494802ac02ba7cc3", kill_on_drop: false }`
[INFO] [stdout] 64c8d2aa7cc3f2e6f1feb5979f012323b1890810c317caa3494802ac02ba7cc3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", 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] fe99f0effa9264ce6ea91ab991be745d18ffa4baa09710539295a3f66277be9e
[INFO] running `Command { std: "docker" "start" "-a" "fe99f0effa9264ce6ea91ab991be745d18ffa4baa09710539295a3f66277be9e", kill_on_drop: false }`
[INFO] [stderr]    Compiling tock-registers v0.5.0 (https://github.com/tock/tock/#cd9affd3)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> /opt/rustwide/cargo-home/git/checkouts/tock-eb299d76271d0c4e/cd9affd/libraries/tock-register-interface/src/lib.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(const_fn)]
[INFO] [stdout]   |            ^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: split into finer-grained feature gates
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/git/checkouts/tock-eb299d76271d0c4e/cd9affd/libraries/tock-register-interface/src/lib.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(const_fn)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0557.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tock-registers` due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "fe99f0effa9264ce6ea91ab991be745d18ffa4baa09710539295a3f66277be9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe99f0effa9264ce6ea91ab991be745d18ffa4baa09710539295a3f66277be9e", kill_on_drop: false }`
[INFO] [stdout] fe99f0effa9264ce6ea91ab991be745d18ffa4baa09710539295a3f66277be9e