[INFO] fetching crate loadenv 0.1.4...
[INFO] testing loadenv-0.1.4 against 1.54.0 for beta-1.55-2
[INFO] extracting crate loadenv 0.1.4 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate loadenv 0.1.4 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate loadenv 0.1.4
[INFO] finished tweaking crates.io crate loadenv 0.1.4
[INFO] tweaked toml for crates.io crate loadenv 0.1.4 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate crates.io crate loadenv 0.1.4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+1.54.0" "metadata" "--no-deps" "--format-version=1", 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] 72228e785b4d6e2eca25c1e01e59e09a5cb801d355b9294a14d4a09c718f29f4
[INFO] running `Command { std: "docker" "start" "-a" "72228e785b4d6e2eca25c1e01e59e09a5cb801d355b9294a14d4a09c718f29f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "72228e785b4d6e2eca25c1e01e59e09a5cb801d355b9294a14d4a09c718f29f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72228e785b4d6e2eca25c1e01e59e09a5cb801d355b9294a14d4a09c718f29f4", kill_on_drop: false }`
[INFO] [stdout] 72228e785b4d6e2eca25c1e01e59e09a5cb801d355b9294a14d4a09c718f29f4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1dbe3994ae735cbdac5850b39930e7de457bfbd5bbe7a72d55e8901b8e41e16b
[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" "1dbe3994ae735cbdac5850b39930e7de457bfbd5bbe7a72d55e8901b8e41e16b", kill_on_drop: false }`
[INFO] [stderr]    Compiling loadenv v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.67s
[INFO] running `Command { std: "docker" "inspect" "1dbe3994ae735cbdac5850b39930e7de457bfbd5bbe7a72d55e8901b8e41e16b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1dbe3994ae735cbdac5850b39930e7de457bfbd5bbe7a72d55e8901b8e41e16b", kill_on_drop: false }`
[INFO] [stdout] 1dbe3994ae735cbdac5850b39930e7de457bfbd5bbe7a72d55e8901b8e41e16b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 944a2343667f605007930b7d0679e2413b7c52bd9c80fd32574dbe999fa61442
[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" "944a2343667f605007930b7d0679e2413b7c52bd9c80fd32574dbe999fa61442", kill_on_drop: false }`
[INFO] [stderr] error: failed to create directory `/opt/rustwide/target/debug/tmp`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   File exists (os error 17)
[INFO] running `Command { std: "docker" "inspect" "944a2343667f605007930b7d0679e2413b7c52bd9c80fd32574dbe999fa61442", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "944a2343667f605007930b7d0679e2413b7c52bd9c80fd32574dbe999fa61442", kill_on_drop: false }`
[INFO] [stdout] 944a2343667f605007930b7d0679e2413b7c52bd9c80fd32574dbe999fa61442