[INFO] cloning repository https://github.com/playXE/sierra-scheme
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/playXE/sierra-scheme" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FplayXE%2Fsierra-scheme", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FplayXE%2Fsierra-scheme'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 10ec42fa08fc4a9b35765e0d45e5ca70e6536ace
[INFO] checking playXE/sierra-scheme against master#0a8629bff642c3c3b84bb644c0099194f063b627 for pr-86231
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FplayXE%2Fsierra-scheme" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/playXE/sierra-scheme on toolchain 0a8629bff642c3c3b84bb644c0099194f063b627
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0a8629bff642c3c3b84bb644c0099194f063b627" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/playXE/sierra-scheme
[INFO] finished tweaking git repo https://github.com/playXE/sierra-scheme
[INFO] tweaked toml for git repo https://github.com/playXE/sierra-scheme written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/playXE/sierra-scheme already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0a8629bff642c3c3b84bb644c0099194f063b627" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+0a8629bff642c3c3b84bb644c0099194f063b627" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 27e081ad0bcfd3dc9e3212bbe4e94b9b69d3f19a98561e78ea5d0d311876c0d7
[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" "27e081ad0bcfd3dc9e3212bbe4e94b9b69d3f19a98561e78ea5d0d311876c0d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "27e081ad0bcfd3dc9e3212bbe4e94b9b69d3f19a98561e78ea5d0d311876c0d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "27e081ad0bcfd3dc9e3212bbe4e94b9b69d3f19a98561e78ea5d0d311876c0d7", kill_on_drop: false }`
[INFO] [stdout] 27e081ad0bcfd3dc9e3212bbe4e94b9b69d3f19a98561e78ea5d0d311876c0d7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+0a8629bff642c3c3b84bb644c0099194f063b627" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e718724bc8ab94f7013493d1daa438d819f27c4b8d6ea7a5515c3b745067d2d4
[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" "e718724bc8ab94f7013493d1daa438d819f27c4b8d6ea7a5515c3b745067d2d4", kill_on_drop: false }`
[INFO] [stderr]    Compiling cranelift-codegen-shared v0.75.0
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling cranelift-entity v0.75.0
[INFO] [stderr]    Compiling target-lexicon v0.12.0
[INFO] [stderr]     Checking rustc-hash v1.1.0
[INFO] [stderr]    Compiling anyhow v1.0.40
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling sierra v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking cty v0.2.1
[INFO] [stderr]     Checking tagged-box v0.1.1
[INFO] [stderr]     Checking mopa v0.2.2
[INFO] [stderr]    Compiling libmimalloc-sys v0.1.21
[INFO] [stderr]    Compiling cranelift-codegen-meta v0.75.0
[INFO] [stderr]     Checking cranelift-bforest v0.75.0
[INFO] [stderr]     Checking region v2.2.0
[INFO] [stderr]     Checking regalloc v0.0.31
[INFO] [stderr]    Compiling cranelift-codegen v0.75.0
[INFO] [stderr]     Checking cranelift-native v0.75.0
[INFO] [stderr]     Checking cranelift-module v0.75.0
[INFO] [stderr]     Checking cranelift-frontend v0.75.0
[INFO] [stderr]     Checking cranelift-jit v0.75.0
[INFO] [stderr]     Checking cranelift v0.75.0
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 53.86s
[INFO] running `Command { std: "docker" "inspect" "e718724bc8ab94f7013493d1daa438d819f27c4b8d6ea7a5515c3b745067d2d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e718724bc8ab94f7013493d1daa438d819f27c4b8d6ea7a5515c3b745067d2d4", kill_on_drop: false }`
[INFO] [stdout] e718724bc8ab94f7013493d1daa438d819f27c4b8d6ea7a5515c3b745067d2d4