[INFO] fetching crate jsona 0.2.0...
[INFO] testing jsona-0.2.0 against 1.52.1 for beta-1.52-2
[INFO] extracting crate jsona 0.2.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate jsona 0.2.0 on toolchain 1.52.1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.52.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate jsona 0.2.0
[INFO] finished tweaking crates.io crate jsona 0.2.0
[INFO] tweaked toml for crates.io crate jsona 0.2.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.52.1" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.52.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+1.52.1" "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] 38caaf7aeaa2823634e7d9a9a61a7095d2d250c9abba6ff600f4acc32c930ae6
[INFO] running `Command { std: "docker" "start" "-a" "38caaf7aeaa2823634e7d9a9a61a7095d2d250c9abba6ff600f4acc32c930ae6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "38caaf7aeaa2823634e7d9a9a61a7095d2d250c9abba6ff600f4acc32c930ae6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38caaf7aeaa2823634e7d9a9a61a7095d2d250c9abba6ff600f4acc32c930ae6", kill_on_drop: false }`
[INFO] [stdout] 38caaf7aeaa2823634e7d9a9a61a7095d2d250c9abba6ff600f4acc32c930ae6
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+1.52.1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2b439adbbc8042b79ccc3f6927f210eb4c4f5676c17e3a8cda8c386e3eeb1985
[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" "2b439adbbc8042b79ccc3f6927f210eb4c4f5676c17e3a8cda8c386e3eeb1985", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling jsona v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 33.78s
[INFO] running `Command { std: "docker" "inspect" "2b439adbbc8042b79ccc3f6927f210eb4c4f5676c17e3a8cda8c386e3eeb1985", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b439adbbc8042b79ccc3f6927f210eb4c4f5676c17e3a8cda8c386e3eeb1985", kill_on_drop: false }`
[INFO] [stdout] 2b439adbbc8042b79ccc3f6927f210eb4c4f5676c17e3a8cda8c386e3eeb1985
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+1.52.1" "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] 9b7ccad926e086ae8c1117bdc45c93495e5cdf75f772048222af5e872e5fd1e1
[INFO] running `Command { std: "docker" "start" "-a" "9b7ccad926e086ae8c1117bdc45c93495e5cdf75f772048222af5e872e5fd1e1", kill_on_drop: false }`
[INFO] [stderr]    Compiling jsona v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.93s
[INFO] running `Command { std: "docker" "inspect" "9b7ccad926e086ae8c1117bdc45c93495e5cdf75f772048222af5e872e5fd1e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b7ccad926e086ae8c1117bdc45c93495e5cdf75f772048222af5e872e5fd1e1", kill_on_drop: false }`
[INFO] [stdout] 9b7ccad926e086ae8c1117bdc45c93495e5cdf75f772048222af5e872e5fd1e1
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+1.52.1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 001c1f26c78fc8253a5b20d7bae3785504bfbfbaa052aa1813328ed6f57e709f
[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" "001c1f26c78fc8253a5b20d7bae3785504bfbfbaa052aa1813328ed6f57e709f", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/jsona-c70332ec615646c2)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test lexer::tests::test_string_escape ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/test_jsona_example.rs (/opt/rustwide/target/debug/deps/test_jsona_example-039861ac6a91bd2f)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test test_lex ... ok
[INFO] [stdout] test test_parse ... ok
[INFO] [stdout] test test_json ... 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] [stderr]    Doc-tests jsona
[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" "001c1f26c78fc8253a5b20d7bae3785504bfbfbaa052aa1813328ed6f57e709f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "001c1f26c78fc8253a5b20d7bae3785504bfbfbaa052aa1813328ed6f57e709f", kill_on_drop: false }`
[INFO] [stdout] 001c1f26c78fc8253a5b20d7bae3785504bfbfbaa052aa1813328ed6f57e709f