[INFO] cloning repository https://github.com/quadruple-output/rustc_dead_code_bug
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/quadruple-output/rustc_dead_code_bug" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fquadruple-output%2Frustc_dead_code_bug", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fquadruple-output%2Frustc_dead_code_bug'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 91320aa2e04c4ced1d76c20e15f99e58d6274457
[INFO] testing quadruple-output/rustc_dead_code_bug against beta-2021-01-01 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fquadruple-output%2Frustc_dead_code_bug" "/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/quadruple-output/rustc_dead_code_bug on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/quadruple-output/rustc_dead_code_bug
[INFO] finished tweaking git repo https://github.com/quadruple-output/rustc_dead_code_bug
[INFO] tweaked toml for git repo https://github.com/quadruple-output/rustc_dead_code_bug written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/quadruple-output/rustc_dead_code_bug already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d04aa6c9ebbc9f2b8bf3fb7574e3a691b0ac2d6ee07c0d4dc48b62fe39dd0faf
[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" "d04aa6c9ebbc9f2b8bf3fb7574e3a691b0ac2d6ee07c0d4dc48b62fe39dd0faf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d04aa6c9ebbc9f2b8bf3fb7574e3a691b0ac2d6ee07c0d4dc48b62fe39dd0faf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d04aa6c9ebbc9f2b8bf3fb7574e3a691b0ac2d6ee07c0d4dc48b62fe39dd0faf", kill_on_drop: false }`
[INFO] [stdout] d04aa6c9ebbc9f2b8bf3fb7574e3a691b0ac2d6ee07c0d4dc48b62fe39dd0faf
[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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ee0d1f38313d45f7195f5f987416c7f8ee5d1519934a7fae8c4b77d7bfdab431
[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" "ee0d1f38313d45f7195f5f987416c7f8ee5d1519934a7fae8c4b77d7bfdab431", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustc_dead_code_bug v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.42s
[INFO] running `Command { std: "docker" "inspect" "ee0d1f38313d45f7195f5f987416c7f8ee5d1519934a7fae8c4b77d7bfdab431", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee0d1f38313d45f7195f5f987416c7f8ee5d1519934a7fae8c4b77d7bfdab431", kill_on_drop: false }`
[INFO] [stdout] ee0d1f38313d45f7195f5f987416c7f8ee5d1519934a7fae8c4b77d7bfdab431
[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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 71503eb693604c4502e40cce639a8a433d081b3d6222f2f12b3000938c32d5f5
[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" "71503eb693604c4502e40cce639a8a433d081b3d6222f2f12b3000938c32d5f5", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustc_dead_code_bug v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.91s
[INFO] running `Command { std: "docker" "inspect" "71503eb693604c4502e40cce639a8a433d081b3d6222f2f12b3000938c32d5f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71503eb693604c4502e40cce639a8a433d081b3d6222f2f12b3000938c32d5f5", kill_on_drop: false }`
[INFO] [stdout] 71503eb693604c4502e40cce639a8a433d081b3d6222f2f12b3000938c32d5f5
[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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", 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] f4695d64519685f09cdcc57051b46410d05169c74fa07cfdbafaa77fdadb4544
[INFO] running `Command { std: "docker" "start" "-a" "f4695d64519685f09cdcc57051b46410d05169c74fa07cfdbafaa77fdadb4544", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rustc_dead_code_bug-a9c319a448cdebc0
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f4695d64519685f09cdcc57051b46410d05169c74fa07cfdbafaa77fdadb4544", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4695d64519685f09cdcc57051b46410d05169c74fa07cfdbafaa77fdadb4544", kill_on_drop: false }`
[INFO] [stdout] f4695d64519685f09cdcc57051b46410d05169c74fa07cfdbafaa77fdadb4544