[INFO] fetching crate symbolic 8.0.0...
[INFO] testing symbolic-8.0.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate symbolic 8.0.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate symbolic 8.0.0 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 symbolic 8.0.0
[INFO] finished tweaking crates.io crate symbolic 8.0.0
[INFO] tweaked toml for crates.io crate symbolic 8.0.0 written to /workspace/builds/worker-6/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e80834d48ae585fb5bde0deba0d6166b4938d0a52adb4402887b1c892979ba72
[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" "e80834d48ae585fb5bde0deba0d6166b4938d0a52adb4402887b1c892979ba72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e80834d48ae585fb5bde0deba0d6166b4938d0a52adb4402887b1c892979ba72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e80834d48ae585fb5bde0deba0d6166b4938d0a52adb4402887b1c892979ba72", kill_on_drop: false }`
[INFO] [stdout] e80834d48ae585fb5bde0deba0d6166b4938d0a52adb4402887b1c892979ba72
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fd6b5c21bd695052f93a3765b873667fdbf2f6137774d51dbed880ca40465b27
[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" "fd6b5c21bd695052f93a3765b873667fdbf2f6137774d51dbed880ca40465b27", kill_on_drop: false }`
[INFO] [stderr]    Compiling wasmparser v0.59.0
[INFO] [stderr]    Compiling leb128 v0.2.4
[INFO] [stderr]    Compiling plain v0.2.3
[INFO] [stderr]    Compiling id-arena v2.2.1
[INFO] [stderr]    Compiling dmsort v1.0.1
[INFO] [stderr]    Compiling wasmparser v0.68.0
[INFO] [stderr]    Compiling debugid v0.7.2
[INFO] [stderr]    Compiling gimli v0.22.0
[INFO] [stderr]    Compiling bzip2-sys v0.1.9+1.0.8
[INFO] [stderr]    Compiling scroll_derive v0.10.4
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]    Compiling walrus-macro v0.18.0
[INFO] [stderr]    Compiling bzip2 v0.3.3
[INFO] [stderr]    Compiling symbolic-common v8.0.0
[INFO] [stderr]    Compiling zip v0.5.6
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]    Compiling scroll v0.10.2
[INFO] [stderr]    Compiling goblin v0.2.3
[INFO] [stderr]    Compiling pdb v0.6.0
[INFO] [stderr]    Compiling walrus v0.18.0
[INFO] [stderr]    Compiling symbolic-debuginfo v8.0.0
[INFO] [stderr]    Compiling symbolic v8.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 48.43s
[INFO] running `Command { std: "docker" "inspect" "fd6b5c21bd695052f93a3765b873667fdbf2f6137774d51dbed880ca40465b27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd6b5c21bd695052f93a3765b873667fdbf2f6137774d51dbed880ca40465b27", kill_on_drop: false }`
[INFO] [stdout] fd6b5c21bd695052f93a3765b873667fdbf2f6137774d51dbed880ca40465b27
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dd40e1e0f3318f6f64de1cf32c539890b66975a22bc72743575103a067465a67
[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" "dd40e1e0f3318f6f64de1cf32c539890b66975a22bc72743575103a067465a67", kill_on_drop: false }`
[INFO] [stderr]    Compiling symbolic v8.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.22s
[INFO] running `Command { std: "docker" "inspect" "dd40e1e0f3318f6f64de1cf32c539890b66975a22bc72743575103a067465a67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd40e1e0f3318f6f64de1cf32c539890b66975a22bc72743575103a067465a67", kill_on_drop: false }`
[INFO] [stdout] dd40e1e0f3318f6f64de1cf32c539890b66975a22bc72743575103a067465a67
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7aea8f813698f7353ec5276fa823e1655d45c895f99d33304c53b4df18066bdd
[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" "7aea8f813698f7353ec5276fa823e1655d45c895f99d33304c53b4df18066bdd", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/symbolic-5114503f51d289e5
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests symbolic
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "7aea8f813698f7353ec5276fa823e1655d45c895f99d33304c53b4df18066bdd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7aea8f813698f7353ec5276fa823e1655d45c895f99d33304c53b4df18066bdd", kill_on_drop: false }`
[INFO] [stdout] 7aea8f813698f7353ec5276fa823e1655d45c895f99d33304c53b4df18066bdd