[INFO] crate json_env_logger 0.1.1 is already in cache
[INFO] testing json_env_logger-0.1.1 against beta-2020-07-24 for beta-1.46-1
[INFO] extracting crate json_env_logger 0.1.1 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate json_env_logger 0.1.1 on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate json_env_logger 0.1.1
[INFO] finished tweaking crates.io crate json_env_logger 0.1.1
[INFO] tweaked toml for crates.io crate json_env_logger 0.1.1 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate crates.io crate json_env_logger 0.1.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 840195c8a708701807122b53df0166fd5dd68e0fffb97666954a467207d844ab
[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" "840195c8a708701807122b53df0166fd5dd68e0fffb97666954a467207d844ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "840195c8a708701807122b53df0166fd5dd68e0fffb97666954a467207d844ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "840195c8a708701807122b53df0166fd5dd68e0fffb97666954a467207d844ab", kill_on_drop: false }`
[INFO] [stdout] 840195c8a708701807122b53df0166fd5dd68e0fffb97666954a467207d844ab
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "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] 51681d0de9468068bd26796fa8fd33583041e424fe76e2223cf890df3af01db9
[INFO] running `Command { std: "docker" "start" "-a" "51681d0de9468068bd26796fa8fd33583041e424fe76e2223cf890df3af01db9", kill_on_drop: false }`
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling serde v1.0.114
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling kv-log-macro v1.0.6
[INFO] [stderr]    Compiling serde_json v1.0.56
[INFO] [stderr]    Compiling json_env_logger v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.34s
[INFO] running `Command { std: "docker" "inspect" "51681d0de9468068bd26796fa8fd33583041e424fe76e2223cf890df3af01db9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51681d0de9468068bd26796fa8fd33583041e424fe76e2223cf890df3af01db9", kill_on_drop: false }`
[INFO] [stdout] 51681d0de9468068bd26796fa8fd33583041e424fe76e2223cf890df3af01db9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 324f11d45f6f0ee9ac5714873366075fb6d027c1b1f90f34baa09ffd4a40c7bb
[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" "324f11d45f6f0ee9ac5714873366075fb6d027c1b1f90f34baa09ffd4a40c7bb", kill_on_drop: false }`
[INFO] [stderr]    Compiling json_env_logger v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.18s
[INFO] running `Command { std: "docker" "inspect" "324f11d45f6f0ee9ac5714873366075fb6d027c1b1f90f34baa09ffd4a40c7bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "324f11d45f6f0ee9ac5714873366075fb6d027c1b1f90f34baa09ffd4a40c7bb", kill_on_drop: false }`
[INFO] [stdout] 324f11d45f6f0ee9ac5714873366075fb6d027c1b1f90f34baa09ffd4a40c7bb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5e5177b54b8056d6fe25b0961b818046fce49eecc7e48b0499699aec11bf2b5f
[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" "5e5177b54b8056d6fe25b0961b818046fce49eecc7e48b0499699aec11bf2b5f", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/json_env_logger-505efff9c066035f
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test tests::escapes_json_strings ... ok
[INFO] [stdout] test tests::writes_records_as_json ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests json_env_logger
[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" "5e5177b54b8056d6fe25b0961b818046fce49eecc7e48b0499699aec11bf2b5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e5177b54b8056d6fe25b0961b818046fce49eecc7e48b0499699aec11bf2b5f", kill_on_drop: false }`
[INFO] [stdout] 5e5177b54b8056d6fe25b0961b818046fce49eecc7e48b0499699aec11bf2b5f