[INFO] cloning repository https://github.com/swilk19/rust_numerical_persistence
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/swilk19/rust_numerical_persistence" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fswilk19%2Frust_numerical_persistence", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fswilk19%2Frust_numerical_persistence'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1e74645a9a8023e86c86a01d75f14227e2d0c9b8
[INFO] testing swilk19/rust_numerical_persistence 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%2Fswilk19%2Frust_numerical_persistence" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/swilk19/rust_numerical_persistence 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/swilk19/rust_numerical_persistence
[INFO] finished tweaking git repo https://github.com/swilk19/rust_numerical_persistence
[INFO] tweaked toml for git repo https://github.com/swilk19/rust_numerical_persistence written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/swilk19/rust_numerical_persistence 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-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 52662cf963bc3105edfcbbcf93812a7605368a2302db41d364e50e7976af4629
[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" "52662cf963bc3105edfcbbcf93812a7605368a2302db41d364e50e7976af4629", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "52662cf963bc3105edfcbbcf93812a7605368a2302db41d364e50e7976af4629", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52662cf963bc3105edfcbbcf93812a7605368a2302db41d364e50e7976af4629", kill_on_drop: false }`
[INFO] [stdout] 52662cf963bc3105edfcbbcf93812a7605368a2302db41d364e50e7976af4629
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6cba4ffc587bd45afffbac7a45fa9fdff70df494cf32a78ca418b309ee8d9ab5
[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" "6cba4ffc587bd45afffbac7a45fa9fdff70df494cf32a78ca418b309ee8d9ab5", kill_on_drop: false }`
[INFO] [stderr]    Compiling additive_persistence v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.83s
[INFO] running `Command { std: "docker" "inspect" "6cba4ffc587bd45afffbac7a45fa9fdff70df494cf32a78ca418b309ee8d9ab5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6cba4ffc587bd45afffbac7a45fa9fdff70df494cf32a78ca418b309ee8d9ab5", kill_on_drop: false }`
[INFO] [stdout] 6cba4ffc587bd45afffbac7a45fa9fdff70df494cf32a78ca418b309ee8d9ab5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--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] e3fe40246ee9c612a855e07884059d87219fffc03a026c3bfd22ebb73cb395d3
[INFO] running `Command { std: "docker" "start" "-a" "e3fe40246ee9c612a855e07884059d87219fffc03a026c3bfd22ebb73cb395d3", kill_on_drop: false }`
[INFO] [stderr]    Compiling additive_persistence v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.72s
[INFO] running `Command { std: "docker" "inspect" "e3fe40246ee9c612a855e07884059d87219fffc03a026c3bfd22ebb73cb395d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3fe40246ee9c612a855e07884059d87219fffc03a026c3bfd22ebb73cb395d3", kill_on_drop: false }`
[INFO] [stdout] e3fe40246ee9c612a855e07884059d87219fffc03a026c3bfd22ebb73cb395d3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 200cdc3543a8f0c15e35f2c35eea66045d2045e72aa0846fd4a8c4fa367f072c
[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" "200cdc3543a8f0c15e35f2c35eea66045d2045e72aa0846fd4a8c4fa367f072c", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/additive_persistence-11f6ac098a751403
[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" "200cdc3543a8f0c15e35f2c35eea66045d2045e72aa0846fd4a8c4fa367f072c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "200cdc3543a8f0c15e35f2c35eea66045d2045e72aa0846fd4a8c4fa367f072c", kill_on_drop: false }`
[INFO] [stdout] 200cdc3543a8f0c15e35f2c35eea66045d2045e72aa0846fd4a8c4fa367f072c