[INFO] fetching crate minimult_cortex-m 0.3.3...
[INFO] checking minimult_cortex-m-0.3.3 against beta for pr-78714
[INFO] extracting crate minimult_cortex-m 0.3.3 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate minimult_cortex-m 0.3.3 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate minimult_cortex-m 0.3.3
[INFO] finished tweaking crates.io crate minimult_cortex-m 0.3.3
[INFO] tweaked toml for crates.io crate minimult_cortex-m 0.3.3 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate crates.io crate minimult_cortex-m 0.3.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b525339b1a2095ffb39c6a2f41611fea63e609095dd04e560f6fe8ef03ab3b9c
[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" "b525339b1a2095ffb39c6a2f41611fea63e609095dd04e560f6fe8ef03ab3b9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b525339b1a2095ffb39c6a2f41611fea63e609095dd04e560f6fe8ef03ab3b9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b525339b1a2095ffb39c6a2f41611fea63e609095dd04e560f6fe8ef03ab3b9c", kill_on_drop: false }`
[INFO] [stdout] b525339b1a2095ffb39c6a2f41611fea63e609095dd04e560f6fe8ef03ab3b9c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--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] 62f86fdc16ffeb539dfcb66efc0b0d158d60a935840f7826ab82a8b5b45ff8d6
[INFO] running `Command { std: "docker" "start" "-a" "62f86fdc16ffeb539dfcb66efc0b0d158d60a935840f7826ab82a8b5b45ff8d6", kill_on_drop: false }`
[INFO] [stderr]    Compiling cortex-m v0.6.1
[INFO] [stderr]     Checking stable_deref_trait v1.1.1
[INFO] [stderr]     Checking vcell v0.1.2
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling syn v1.0.8
[INFO] [stderr]    Compiling minimult_cortex-m v0.3.3 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling cortex-m-rt v0.6.10
[INFO] [stderr]     Checking r0 v0.2.2
[INFO] [stderr]    Compiling typenum v1.11.2
[INFO] [stderr]    Compiling num-traits v0.2.9
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling bare-metal v0.2.5
[INFO] [stderr]     Checking volatile-register v0.2.0
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand v0.5.6
[INFO] [stderr]    Compiling cortex-m-semihosting v0.3.5
[INFO] [stderr]     Checking generic-array v0.12.3
[INFO] [stderr]     Checking as-slice v0.1.0
[INFO] [stderr]     Checking aligned v0.3.1
[INFO] [stderr]     Checking panic-semihosting v0.5.3
[INFO] [stderr]    Compiling cortex-m-rt-macros v0.1.6
[INFO] [stdout] error: language item required, but not found: `eh_personality`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `minimult_cortex-m`
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[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" "62f86fdc16ffeb539dfcb66efc0b0d158d60a935840f7826ab82a8b5b45ff8d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "62f86fdc16ffeb539dfcb66efc0b0d158d60a935840f7826ab82a8b5b45ff8d6", kill_on_drop: false }`
[INFO] [stdout] 62f86fdc16ffeb539dfcb66efc0b0d158d60a935840f7826ab82a8b5b45ff8d6