[INFO] fetching crate symbolic 8.0.0...
[INFO] testing symbolic-8.0.0 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate symbolic 8.0.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate symbolic 8.0.0 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 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-4/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded symbolic-sourcemap v8.0.0
[INFO] [stderr]   Downloaded symbolic-demangle v8.0.0
[INFO] [stderr]   Downloaded symbolic-symcache v8.0.0
[INFO] [stderr]   Downloaded symbolic-unreal v8.0.0
[INFO] [stderr]   Downloaded symbolic-minidump v8.0.0
[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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 5049ffbb6281b99028acb4990aa9d157d59d4cfc678cd30a3dc5c4f32c886b83
[INFO] running `Command { std: "docker" "start" "-a" "5049ffbb6281b99028acb4990aa9d157d59d4cfc678cd30a3dc5c4f32c886b83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5049ffbb6281b99028acb4990aa9d157d59d4cfc678cd30a3dc5c4f32c886b83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5049ffbb6281b99028acb4990aa9d157d59d4cfc678cd30a3dc5c4f32c886b83", kill_on_drop: false }`
[INFO] [stdout] 5049ffbb6281b99028acb4990aa9d157d59d4cfc678cd30a3dc5c4f32c886b83
[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] cfa40c2ce73f19f1797a9ed670aea1831fefd1840dfa5571001b0f75d6611537
[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" "cfa40c2ce73f19f1797a9ed670aea1831fefd1840dfa5571001b0f75d6611537", kill_on_drop: false }`
[INFO] [stderr]    Compiling fallible-iterator v0.2.0
[INFO] [stderr]    Compiling id-arena v2.2.1
[INFO] [stderr]    Compiling wasmparser v0.59.0
[INFO] [stderr]    Compiling leb128 v0.2.4
[INFO] [stderr]    Compiling wasmparser v0.68.0
[INFO] [stderr]    Compiling dmsort v1.0.1
[INFO] [stderr]    Compiling symbolic-common v8.0.0
[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 thiserror-impl v1.0.23
[INFO] [stderr]    Compiling zip v0.5.6
[INFO] [stderr]    Compiling serde_json v1.0.61
[INFO] [stderr]    Compiling gimli v0.22.0
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]    Compiling scroll v0.10.2
[INFO] [stderr]    Compiling thiserror v1.0.23
[INFO] [stderr]    Compiling pdb v0.6.0
[INFO] [stderr]    Compiling goblin v0.2.3
[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 49.02s
[INFO] running `Command { std: "docker" "inspect" "cfa40c2ce73f19f1797a9ed670aea1831fefd1840dfa5571001b0f75d6611537", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cfa40c2ce73f19f1797a9ed670aea1831fefd1840dfa5571001b0f75d6611537", kill_on_drop: false }`
[INFO] [stdout] cfa40c2ce73f19f1797a9ed670aea1831fefd1840dfa5571001b0f75d6611537
[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] [stdout] 6a996b24741952a6a5080b77894b53b75400f6d7a7fe1708d9ba2ba3eb54b7af
[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" "6a996b24741952a6a5080b77894b53b75400f6d7a7fe1708d9ba2ba3eb54b7af", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling symbolic v8.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.14s
[INFO] running `Command { std: "docker" "inspect" "6a996b24741952a6a5080b77894b53b75400f6d7a7fe1708d9ba2ba3eb54b7af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a996b24741952a6a5080b77894b53b75400f6d7a7fe1708d9ba2ba3eb54b7af", kill_on_drop: false }`
[INFO] [stdout] 6a996b24741952a6a5080b77894b53b75400f6d7a7fe1708d9ba2ba3eb54b7af
[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] [stdout] 3eb4ef472b357d11efd49206d17c7bb570593e7cda6ea5e7c176a980c4d496cd
[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" "3eb4ef472b357d11efd49206d17c7bb570593e7cda6ea5e7c176a980c4d496cd", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/symbolic-3c3067d5f8b9024f
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests symbolic
[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] [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" "3eb4ef472b357d11efd49206d17c7bb570593e7cda6ea5e7c176a980c4d496cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3eb4ef472b357d11efd49206d17c7bb570593e7cda6ea5e7c176a980c4d496cd", kill_on_drop: false }`
[INFO] [stdout] 3eb4ef472b357d11efd49206d17c7bb570593e7cda6ea5e7c176a980c4d496cd