[INFO] fetching crate threadstack 0.4.1...
[INFO] testing threadstack-0.4.1 against 1.49.0 for beta-1.50-1
[INFO] extracting crate threadstack 0.4.1 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate threadstack 0.4.1 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate threadstack 0.4.1
[INFO] finished tweaking crates.io crate threadstack 0.4.1
[INFO] tweaked toml for crates.io crate threadstack 0.4.1 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7170b98a9ef4af70e54298714f1a04db36b769f2b02f1791a24deba95d5f88bf
[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" "7170b98a9ef4af70e54298714f1a04db36b769f2b02f1791a24deba95d5f88bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7170b98a9ef4af70e54298714f1a04db36b769f2b02f1791a24deba95d5f88bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7170b98a9ef4af70e54298714f1a04db36b769f2b02f1791a24deba95d5f88bf", kill_on_drop: false }`
[INFO] [stdout] 7170b98a9ef4af70e54298714f1a04db36b769f2b02f1791a24deba95d5f88bf
[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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "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] 12d86a8396b95a048ff20d2449a8d78562b2e863b46add9a6e2f2a59304472d4
[INFO] running `Command { std: "docker" "start" "-a" "12d86a8396b95a048ff20d2449a8d78562b2e863b46add9a6e2f2a59304472d4", kill_on_drop: false }`
[INFO] [stderr]    Compiling rel-ptr v0.2.3
[INFO] [stderr]    Compiling threadstack v0.4.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.98s
[INFO] running `Command { std: "docker" "inspect" "12d86a8396b95a048ff20d2449a8d78562b2e863b46add9a6e2f2a59304472d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "12d86a8396b95a048ff20d2449a8d78562b2e863b46add9a6e2f2a59304472d4", kill_on_drop: false }`
[INFO] [stdout] 12d86a8396b95a048ff20d2449a8d78562b2e863b46add9a6e2f2a59304472d4
[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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "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] 08fedcf46c09942da2ee3e61e71142ee49c0699c521585677565de0bf0667b92
[INFO] running `Command { std: "docker" "start" "-a" "08fedcf46c09942da2ee3e61e71142ee49c0699c521585677565de0bf0667b92", kill_on_drop: false }`
[INFO] [stderr]    Compiling threadstack v0.4.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.19s
[INFO] running `Command { std: "docker" "inspect" "08fedcf46c09942da2ee3e61e71142ee49c0699c521585677565de0bf0667b92", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08fedcf46c09942da2ee3e61e71142ee49c0699c521585677565de0bf0667b92", kill_on_drop: false }`
[INFO] [stdout] 08fedcf46c09942da2ee3e61e71142ee49c0699c521585677565de0bf0667b92
[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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "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] 9811aa8cbff98955c8cf817b20a8fa026d61ca39dc44501204371870a6170228
[INFO] running `Command { std: "docker" "start" "-a" "9811aa8cbff98955c8cf817b20a8fa026d61ca39dc44501204371870a6170228", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/threadstack-5d05cbb8af957684
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] test tests::it_works_no_initial ... ok
[INFO] [stdout] test tests::no_initial_value_test ... ok
[INFO] [stdout] test tests::revert_to_no_initial ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests threadstack
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/lib.rs - declare_thread_stacks (line 82) ... ok
[INFO] [stdout] test src/lib.rs - clone_thread_stack_value (line 313) ... ok
[INFO] [stdout] test src/lib.rs - push_thread_stack_value (line 336) ... ok
[INFO] [stdout] test src/lib.rs - let_ref_thread_stack_value (line 253) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "9811aa8cbff98955c8cf817b20a8fa026d61ca39dc44501204371870a6170228", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9811aa8cbff98955c8cf817b20a8fa026d61ca39dc44501204371870a6170228", kill_on_drop: false }`
[INFO] [stdout] 9811aa8cbff98955c8cf817b20a8fa026d61ca39dc44501204371870a6170228