[INFO] fetching crate generations 2.0.0...
[INFO] testing generations-2.0.0 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate generations 2.0.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate generations 2.0.0 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 generations 2.0.0
[INFO] finished tweaking crates.io crate generations 2.0.0
[INFO] tweaked toml for crates.io crate generations 2.0.0 written to /workspace/builds/worker-2/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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d80b5be0f70c6facf905941b1290c456cfc9ac3054e2c4cb98a46850959cc5de
[INFO] running `Command { std: "docker" "start" "-a" "d80b5be0f70c6facf905941b1290c456cfc9ac3054e2c4cb98a46850959cc5de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d80b5be0f70c6facf905941b1290c456cfc9ac3054e2c4cb98a46850959cc5de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d80b5be0f70c6facf905941b1290c456cfc9ac3054e2c4cb98a46850959cc5de", kill_on_drop: false }`
[INFO] [stdout] d80b5be0f70c6facf905941b1290c456cfc9ac3054e2c4cb98a46850959cc5de
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 64ccd3f36276af5dcabef213761eaa3b1a69d55a04ecd4cc5a600c580a7e0e89
[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" "64ccd3f36276af5dcabef213761eaa3b1a69d55a04ecd4cc5a600c580a7e0e89", kill_on_drop: false }`
[INFO] [stderr]    Compiling generations v2.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.29s
[INFO] running `Command { std: "docker" "inspect" "64ccd3f36276af5dcabef213761eaa3b1a69d55a04ecd4cc5a600c580a7e0e89", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "64ccd3f36276af5dcabef213761eaa3b1a69d55a04ecd4cc5a600c580a7e0e89", kill_on_drop: false }`
[INFO] [stdout] 64ccd3f36276af5dcabef213761eaa3b1a69d55a04ecd4cc5a600c580a7e0e89
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] [stdout] 51818f00ea7340c3627f0b72c19431d515bfb191afdb80654868bd0028ca5443
[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" "51818f00ea7340c3627f0b72c19431d515bfb191afdb80654868bd0028ca5443", kill_on_drop: false }`
[INFO] [stderr]    Compiling generations v2.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `Command { std: "docker" "inspect" "51818f00ea7340c3627f0b72c19431d515bfb191afdb80654868bd0028ca5443", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51818f00ea7340c3627f0b72c19431d515bfb191afdb80654868bd0028ca5443", kill_on_drop: false }`
[INFO] [stdout] 51818f00ea7340c3627f0b72c19431d515bfb191afdb80654868bd0028ca5443
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 557baf188b040a8b7895e5d14b617b5e138832e8962c9cd568fdfe472dc20cd5
[INFO] running `Command { std: "docker" "start" "-a" "557baf188b040a8b7895e5d14b617b5e138832e8962c9cd568fdfe472dc20cd5", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.21s
[INFO] [stdout] running 2 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/generations-075cb48d1ab7ddb2
[INFO] [stdout] test tests::debug_print_test ... ok
[INFO] [stderr]    Doc-tests generations
[INFO] [stdout] test tests::basic_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test src/lib.rs - Generations<Model>::new (line 102) ... ok
[INFO] [stdout] test src/lib.rs - Generations<Model>::reset (line 202) ... ok
[INFO] [stdout] test src/lib.rs - Generations<Model>::reset_with (line 181) ... ok
[INFO] [stdout] test src/lib.rs - (line 35) ... ok
[INFO] [stdout] test src/lib.rs - Generations<Model>::current (line 131) ... ok
[INFO] [stdout] test src/lib.rs - Generations<Model>::step (line 156) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.46s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "557baf188b040a8b7895e5d14b617b5e138832e8962c9cd568fdfe472dc20cd5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "557baf188b040a8b7895e5d14b617b5e138832e8962c9cd568fdfe472dc20cd5", kill_on_drop: false }`
[INFO] [stdout] 557baf188b040a8b7895e5d14b617b5e138832e8962c9cd568fdfe472dc20cd5