[INFO] fetching crate exons 0.1.2...
[INFO] testing exons-0.1.2 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate exons 0.1.2 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate exons 0.1.2 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 crates.io crate exons 0.1.2
[INFO] finished tweaking crates.io crate exons 0.1.2
[INFO] tweaked toml for crates.io crate exons 0.1.2 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] cf704aeed2c57728688f552f9989f7521c5fe12c7c7ca38a12a86586e2c2b6f7
[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" "cf704aeed2c57728688f552f9989f7521c5fe12c7c7ca38a12a86586e2c2b6f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cf704aeed2c57728688f552f9989f7521c5fe12c7c7ca38a12a86586e2c2b6f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf704aeed2c57728688f552f9989f7521c5fe12c7c7ca38a12a86586e2c2b6f7", kill_on_drop: false }`
[INFO] [stdout] cf704aeed2c57728688f552f9989f7521c5fe12c7c7ca38a12a86586e2c2b6f7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e10f3d3de6052781bb0faa237a905516556072b43cc257a1c6c3a359bc1fa237
[INFO] running `Command { std: "docker" "start" "-a" "e10f3d3de6052781bb0faa237a905516556072b43cc257a1c6c3a359bc1fa237", kill_on_drop: false }`
[INFO] [stderr]    Compiling permutation v0.2.5
[INFO] [stderr]    Compiling superslice v1.0.0
[INFO] [stderr]    Compiling lz4-sys v1.9.2
[INFO] [stderr]    Compiling vector_utils v0.1.3
[INFO] [stderr]    Compiling string_utils v0.1.1
[INFO] [stderr]    Compiling lz4 v1.23.2
[INFO] [stderr]    Compiling io_utils v0.2.6
[INFO] [stderr]    Compiling exons v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 29.80s
[INFO] running `Command { std: "docker" "inspect" "e10f3d3de6052781bb0faa237a905516556072b43cc257a1c6c3a359bc1fa237", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e10f3d3de6052781bb0faa237a905516556072b43cc257a1c6c3a359bc1fa237", kill_on_drop: false }`
[INFO] [stdout] e10f3d3de6052781bb0faa237a905516556072b43cc257a1c6c3a359bc1fa237
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] 561f95d711c853f90475f514d1b52f99a6db05f5c41577c6c8648dd811ca1804
[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" "561f95d711c853f90475f514d1b52f99a6db05f5c41577c6c8648dd811ca1804", kill_on_drop: false }`
[INFO] [stderr]    Compiling exons v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.02s
[INFO] running `Command { std: "docker" "inspect" "561f95d711c853f90475f514d1b52f99a6db05f5c41577c6c8648dd811ca1804", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "561f95d711c853f90475f514d1b52f99a6db05f5c41577c6c8648dd811ca1804", kill_on_drop: false }`
[INFO] [stdout] 561f95d711c853f90475f514d1b52f99a6db05f5c41577c6c8648dd811ca1804
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] [stdout] 130debb4c36d51f52557428712a3912eafa7daa737f054377e49c781965f2536
[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" "130debb4c36d51f52557428712a3912eafa7daa737f054377e49c781965f2536", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/exons-7751100339603817
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests exons
[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] [stdout] 
[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" "130debb4c36d51f52557428712a3912eafa7daa737f054377e49c781965f2536", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "130debb4c36d51f52557428712a3912eafa7daa737f054377e49c781965f2536", kill_on_drop: false }`
[INFO] [stdout] 130debb4c36d51f52557428712a3912eafa7daa737f054377e49c781965f2536