[INFO] fetching crate solkit 0.4.8...
[INFO] testing solkit-0.4.8 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate solkit 0.4.8 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate solkit 0.4.8 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 solkit 0.4.8
[INFO] finished tweaking crates.io crate solkit 0.4.8
[INFO] tweaked toml for crates.io crate solkit 0.4.8 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate solkit 0.4.8 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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded simplelog v0.7.6
[INFO] [stderr]   Downloaded nanorand v0.4.4
[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] b8d0bc04a5e24c07b66bcbb6be607dcfd47829ba0b0e720a2605a8af991f2d0d
[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" "b8d0bc04a5e24c07b66bcbb6be607dcfd47829ba0b0e720a2605a8af991f2d0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b8d0bc04a5e24c07b66bcbb6be607dcfd47829ba0b0e720a2605a8af991f2d0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8d0bc04a5e24c07b66bcbb6be607dcfd47829ba0b0e720a2605a8af991f2d0d", kill_on_drop: false }`
[INFO] [stdout] b8d0bc04a5e24c07b66bcbb6be607dcfd47829ba0b0e720a2605a8af991f2d0d
[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] 346e983bfc0d2c34bc496690d85e4f39f86fcfd2ec06b148dbef189e417cb7f9
[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" "346e983bfc0d2c34bc496690d85e4f39f86fcfd2ec06b148dbef189e417cb7f9", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling syn v1.0.55
[INFO] [stderr]    Compiling smallvec v1.5.1
[INFO] [stderr]    Compiling anyhow v1.0.36
[INFO] [stderr]    Compiling nanorand v0.4.4
[INFO] [stderr]    Compiling getopts v0.2.21
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling dirs-sys v0.3.5
[INFO] [stderr]    Compiling signal-hook-registry v1.2.2
[INFO] [stderr]    Compiling mio v0.7.6
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling parking_lot_core v0.8.2
[INFO] [stderr]    Compiling dirs v1.0.5
[INFO] [stderr]    Compiling dirs v2.0.2
[INFO] [stderr]    Compiling parking_lot v0.11.1
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling term v0.6.1
[INFO] [stderr]    Compiling signal-hook v0.1.16
[INFO] [stderr]    Compiling crossterm v0.18.2
[INFO] [stderr]    Compiling simplelog v0.7.6
[INFO] [stderr]    Compiling thiserror-impl v1.0.22
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]    Compiling thiserror v1.0.22
[INFO] [stderr]    Compiling solkit v0.4.8 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 39.08s
[INFO] running `Command { std: "docker" "inspect" "346e983bfc0d2c34bc496690d85e4f39f86fcfd2ec06b148dbef189e417cb7f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "346e983bfc0d2c34bc496690d85e4f39f86fcfd2ec06b148dbef189e417cb7f9", kill_on_drop: false }`
[INFO] [stdout] 346e983bfc0d2c34bc496690d85e4f39f86fcfd2ec06b148dbef189e417cb7f9
[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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d8533caf7d1ed89e0965aec1fc0f99296c16fafc1986b22edc9b3155a34af23a
[INFO] running `Command { std: "docker" "start" "-a" "d8533caf7d1ed89e0965aec1fc0f99296c16fafc1986b22edc9b3155a34af23a", kill_on_drop: false }`
[INFO] [stderr]    Compiling solkit v0.4.8 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.79s
[INFO] running `Command { std: "docker" "inspect" "d8533caf7d1ed89e0965aec1fc0f99296c16fafc1986b22edc9b3155a34af23a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d8533caf7d1ed89e0965aec1fc0f99296c16fafc1986b22edc9b3155a34af23a", kill_on_drop: false }`
[INFO] [stdout] d8533caf7d1ed89e0965aec1fc0f99296c16fafc1986b22edc9b3155a34af23a
[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] 71c66ff6902a270415406a5dfa97daa1354d39309c05fd261e3c4fe3052c0b3f
[INFO] running `Command { std: "docker" "start" "-a" "71c66ff6902a270415406a5dfa97daa1354d39309c05fd261e3c4fe3052c0b3f", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/solkit-345edeacdd583027
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test card::card_test::facei8 ... ok
[INFO] [stdout] test card::card_test::suiti8 ... ok
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/solkit-adcd78da0e05edfa
[INFO] [stdout] test card::card_test::diff_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test primitive::buf_test::what_test ... ok
[INFO] [stdout] test buffer::buf_test::h_resize_test ... ok
[INFO] [stdout] test buffer::buf_test::both_resize_test ... ok
[INFO] [stdout] test primitive::buf_test::iter_test ... ok
[INFO] [stdout] test buffer::buf_test::v_resize_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests solkit
[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" "71c66ff6902a270415406a5dfa97daa1354d39309c05fd261e3c4fe3052c0b3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71c66ff6902a270415406a5dfa97daa1354d39309c05fd261e3c4fe3052c0b3f", kill_on_drop: false }`
[INFO] [stdout] 71c66ff6902a270415406a5dfa97daa1354d39309c05fd261e3c4fe3052c0b3f