[INFO] updating cached repository https://github.com/cwchentw/non-redundant-digits-rust-demo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 54f025a95cb38afa1f79729b2c38772a282310df
[INFO] checking cwchentw/non-redundant-digits-rust-demo against master#8ac1525e091d3db28e67adcbbd6db1e1deaa37fb for pr-73323
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcwchentw%2Fnon-redundant-digits-rust-demo" "/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/cwchentw/non-redundant-digits-rust-demo on toolchain 8ac1525e091d3db28e67adcbbd6db1e1deaa37fb
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8ac1525e091d3db28e67adcbbd6db1e1deaa37fb" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/cwchentw/non-redundant-digits-rust-demo
[INFO] finished tweaking git repo https://github.com/cwchentw/non-redundant-digits-rust-demo
[INFO] tweaked toml for git repo https://github.com/cwchentw/non-redundant-digits-rust-demo written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/cwchentw/non-redundant-digits-rust-demo already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8ac1525e091d3db28e67adcbbd6db1e1deaa37fb" "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-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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+8ac1525e091d3db28e67adcbbd6db1e1deaa37fb" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ccac42324e6cecced1569b92bef77c35c892d17533dadb41e23b03f2e1556a97
[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" "ccac42324e6cecced1569b92bef77c35c892d17533dadb41e23b03f2e1556a97", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ccac42324e6cecced1569b92bef77c35c892d17533dadb41e23b03f2e1556a97", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ccac42324e6cecced1569b92bef77c35c892d17533dadb41e23b03f2e1556a97", kill_on_drop: false }`
[INFO] [stdout] ccac42324e6cecced1569b92bef77c35c892d17533dadb41e23b03f2e1556a97
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+8ac1525e091d3db28e67adcbbd6db1e1deaa37fb" "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] 46c245b88eaf9a2c1a182a235e3d4cbf7e2ce9ee79c9497d51a3194bb43f7ab9
[INFO] running `Command { std: "docker" "start" "-a" "46c245b88eaf9a2c1a182a235e3d4cbf7e2ce9ee79c9497d51a3194bb43f7ab9", kill_on_drop: false }`
[INFO] [stderr]    Compiling gcc v0.3.39
[INFO] [stderr]     Checking enum-set v0.0.6
[INFO] [stderr]    Compiling xattr v0.1.10
[INFO] [stderr]    Compiling filetime v0.1.10
[INFO] [stderr]    Compiling tar v0.4.9
[INFO] [stderr]    Compiling bzip2-sys v0.1.4
[INFO] [stderr]    Compiling bzip2 v0.3.0
[INFO] [stderr]    Compiling libpcre-sys v0.2.2
[INFO] [stderr]     Checking pcre v0.2.3
[INFO] [stderr]     Checking nine v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.59s
[INFO] running `Command { std: "docker" "inspect" "46c245b88eaf9a2c1a182a235e3d4cbf7e2ce9ee79c9497d51a3194bb43f7ab9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46c245b88eaf9a2c1a182a235e3d4cbf7e2ce9ee79c9497d51a3194bb43f7ab9", kill_on_drop: false }`
[INFO] [stdout] 46c245b88eaf9a2c1a182a235e3d4cbf7e2ce9ee79c9497d51a3194bb43f7ab9