[INFO] cloning repository https://github.com/pop-os/scheduler
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pop-os/scheduler" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpop-os%2Fscheduler", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpop-os%2Fscheduler'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a9b187354b45d3cb1e9a73413a10ba5a7c527533
[INFO] checking pop-os/scheduler against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpop-os%2Fscheduler" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/pop-os/scheduler on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-13/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/pop-os/scheduler
[INFO] finished tweaking git repo https://github.com/pop-os/scheduler
[INFO] tweaked toml for git repo https://github.com/pop-os/scheduler written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/pop-os/scheduler already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a4a973b26982e726e401af3edf53bed0f793e29fcf89450a7b57c4f8f1a04d8c
[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" "a4a973b26982e726e401af3edf53bed0f793e29fcf89450a7b57c4f8f1a04d8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a4a973b26982e726e401af3edf53bed0f793e29fcf89450a7b57c4f8f1a04d8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a4a973b26982e726e401af3edf53bed0f793e29fcf89450a7b57c4f8f1a04d8c", kill_on_drop: false }`
[INFO] [stdout] a4a973b26982e726e401af3edf53bed0f793e29fcf89450a7b57c4f8f1a04d8c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 10db3d24dbde4db5f66dddbf46543761316629af33d932e6543c41834254b348
[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" "10db3d24dbde4db5f66dddbf46543761316629af33d932e6543c41834254b348", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling byteorder v1.3.1
[INFO] [stderr]     Checking cfg-if v0.1.9
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]     Checking adler32 v1.0.3
[INFO] [stderr]     Checking bitflags v1.0.4
[INFO] [stderr]     Checking hex v0.3.2
[INFO] [stderr]    Compiling serde v1.0.91
[INFO] [stderr]     Checking bitvec v0.11.1
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stderr]     Checking errno v0.2.4
[INFO] [stderr]     Checking users v0.9.1
[INFO] [stderr]    Compiling err-derive v0.1.5
[INFO] [stderr]     Checking crc32fast v1.2.0
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]    Compiling syn v0.15.34
[INFO] [stderr]     Checking regex v1.1.6
[INFO] [stderr]     Checking chrono v0.4.6
[INFO] [stderr]     Checking libflate v0.1.22
[INFO] [stderr]     Checking scheduler v0.1.0 (/opt/rustwide/workdir/scheduler)
[INFO] [stderr]     Checking procfs v0.5.2
[INFO] [stderr]     Checking pidwatcher v0.1.0 (/opt/rustwide/workdir/pidwatcher)
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]     Checking toml v0.5.0
[INFO] [stderr]     Checking indexmap v1.0.2
[INFO] [stderr]    Compiling serde_derive v1.0.91
[INFO] [stderr]     Checking process-scheduler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 49.69s
[INFO] running `Command { std: "docker" "inspect" "10db3d24dbde4db5f66dddbf46543761316629af33d932e6543c41834254b348", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10db3d24dbde4db5f66dddbf46543761316629af33d932e6543c41834254b348", kill_on_drop: false }`
[INFO] [stdout] 10db3d24dbde4db5f66dddbf46543761316629af33d932e6543c41834254b348