[INFO] cloning repository https://github.com/playXE/cranelift-mem2reg
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/playXE/cranelift-mem2reg" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FplayXE%2Fcranelift-mem2reg", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FplayXE%2Fcranelift-mem2reg'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0b048cd285a3e4fd3f904905ac977068222c77cd
[INFO] checking playXE/cranelift-mem2reg against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FplayXE%2Fcranelift-mem2reg" "/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/playXE/cranelift-mem2reg 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 git repo https://github.com/playXE/cranelift-mem2reg
[INFO] finished tweaking git repo https://github.com/playXE/cranelift-mem2reg
[INFO] tweaked toml for git repo https://github.com/playXE/cranelift-mem2reg written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/playXE/cranelift-mem2reg 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] 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" "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] 687246658d2a80e86260753f9a89308d542839a42ebcc92e7f70285831468aa5
[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" "687246658d2a80e86260753f9a89308d542839a42ebcc92e7f70285831468aa5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "687246658d2a80e86260753f9a89308d542839a42ebcc92e7f70285831468aa5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "687246658d2a80e86260753f9a89308d542839a42ebcc92e7f70285831468aa5", kill_on_drop: false }`
[INFO] [stdout] 687246658d2a80e86260753f9a89308d542839a42ebcc92e7f70285831468aa5
[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" "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] [stdout] 456b9806992a19de933da8338133276295f0d2bb11370aa59150fabb71a38d97
[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" "456b9806992a19de933da8338133276295f0d2bb11370aa59150fabb71a38d97", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.18
[INFO] [stderr]    Compiling cranelift-entity v0.62.0
[INFO] [stderr]    Compiling cranelift-codegen-shared v0.62.0
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]    Compiling raw-cpuid v7.0.3
[INFO] [stderr]     Checking cranelift-bforest v0.62.0
[INFO] [stderr]    Compiling cranelift-codegen-meta v0.62.0
[INFO] [stderr]     Checking region v2.1.2
[INFO] [stderr]     Checking errno v0.2.5
[INFO] [stderr]    Compiling const-random-macro v0.1.8
[INFO] [stderr]     Checking const-random v0.1.8
[INFO] [stderr]     Checking ahash v0.3.2
[INFO] [stderr]     Checking hashbrown v0.7.1
[INFO] [stderr]     Checking hashlink v0.5.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.15
[INFO] [stderr]     Checking thiserror v1.0.15
[INFO] [stderr]    Compiling cranelift-codegen v0.62.0
[INFO] [stderr]     Checking cranelift-frontend v0.62.0
[INFO] [stderr]     Checking cranelift-module v0.62.0
[INFO] [stderr]     Checking cranelift-native v0.62.0
[INFO] [stderr]     Checking cranelift v0.62.0
[INFO] [stderr]     Checking cranelift-simplejit v0.62.0
[INFO] [stderr]     Checking cranelift-mem2reg v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 51.16s
[INFO] running `Command { std: "docker" "inspect" "456b9806992a19de933da8338133276295f0d2bb11370aa59150fabb71a38d97", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "456b9806992a19de933da8338133276295f0d2bb11370aa59150fabb71a38d97", kill_on_drop: false }`
[INFO] [stdout] 456b9806992a19de933da8338133276295f0d2bb11370aa59150fabb71a38d97