[INFO] fetching crate xron 0.3.3...
[INFO] testing xron-0.3.3 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate xron 0.3.3 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate xron 0.3.3 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 xron 0.3.3
[INFO] finished tweaking crates.io crate xron 0.3.3
[INFO] tweaked toml for crates.io crate xron 0.3.3 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate xron 0.3.3 already has a lockfile, it will not be regenerated
[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]  Downloading crates ...
[INFO] [stderr]   Downloaded podio v0.1.6
[INFO] [stderr]   Downloaded cc v1.0.48
[INFO] [stderr]   Downloaded indexmap v1.3.0
[INFO] [stderr]   Downloaded quick-xml v0.16.1
[INFO] [stderr]   Downloaded zip v0.5.3
[INFO] [stderr]   Downloaded syn v1.0.11
[INFO] [stderr]   Downloaded bzip2-sys v0.1.7
[INFO] [stderr]   Downloaded zip v0.4.2
[INFO] [stderr]   Downloaded encoding_rs v0.8.21
[INFO] [stderr]   Downloaded basic_xlsx_writer v0.1.2
[INFO] [stderr]   Downloaded miniz_oxide v0.3.5
[INFO] [stderr]   Downloaded msdos_time v0.1.6
[INFO] [stderr]   Downloaded codepage v0.1.1
[INFO] [stderr]   Downloaded err-derive v0.1.6
[INFO] [stderr]   Downloaded flate2 v1.0.13
[INFO] [stderr]   Downloaded calamine v0.15.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+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] 5a89ba5c50cc7c22b17004b86d1bdaee48447619adde431d51dc939282757c88
[INFO] running `Command { std: "docker" "start" "-a" "5a89ba5c50cc7c22b17004b86d1bdaee48447619adde431d51dc939282757c88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5a89ba5c50cc7c22b17004b86d1bdaee48447619adde431d51dc939282757c88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a89ba5c50cc7c22b17004b86d1bdaee48447619adde431d51dc939282757c88", kill_on_drop: false }`
[INFO] [stdout] 5a89ba5c50cc7c22b17004b86d1bdaee48447619adde431d51dc939282757c88
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+beta-2021-01-01" "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] 768a564ecccdde221a845760b4617ed90cec923a63a634e7544db81f802de8e4
[INFO] running `Command { std: "docker" "start" "-a" "768a564ecccdde221a845760b4617ed90cec923a63a634e7544db81f802de8e4", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.11
[INFO] [stderr]    Compiling cc v1.0.48
[INFO] [stderr]    Compiling encoding_rs v0.8.21
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]    Compiling podio v0.1.6
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling miniz_oxide v0.3.5
[INFO] [stderr]    Compiling indexmap v1.3.0
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling time v0.1.42
[INFO] [stderr]    Compiling atty v0.2.13
[INFO] [stderr]    Compiling err-derive v0.1.6
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling msdos_time v0.1.6
[INFO] [stderr]    Compiling flate2 v1.0.13
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]    Compiling bzip2-sys v0.1.7
[INFO] [stderr]    Compiling base64 v0.10.1
[INFO] [stderr]    Compiling zip v0.5.3
[INFO] [stderr]    Compiling backtrace v0.3.40
[INFO] [stderr]    Compiling bzip2 v0.3.3
[INFO] [stderr]    Compiling zip v0.4.2
[INFO] [stderr]    Compiling codepage v0.1.1
[INFO] [stderr]    Compiling basic_xlsx_writer v0.1.2
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling proc-macro-error v0.2.6
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]    Compiling failure_derive v0.1.6
[INFO] [stderr]    Compiling failure v0.1.6
[INFO] [stderr]    Compiling quick-xml v0.16.1
[INFO] [stderr]    Compiling ron v0.4.2
[INFO] [stderr]    Compiling calamine v0.15.6
[INFO] [stderr]    Compiling xron v0.3.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 59.53s
[INFO] running `Command { std: "docker" "inspect" "768a564ecccdde221a845760b4617ed90cec923a63a634e7544db81f802de8e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "768a564ecccdde221a845760b4617ed90cec923a63a634e7544db81f802de8e4", kill_on_drop: false }`
[INFO] [stdout] 768a564ecccdde221a845760b4617ed90cec923a63a634e7544db81f802de8e4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0476b04373d752e24504e707c53828982d01bec733cc7edd6efa69d1c528d97b
[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" "0476b04373d752e24504e707c53828982d01bec733cc7edd6efa69d1c528d97b", kill_on_drop: false }`
[INFO] [stderr]    Compiling xron v0.3.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.31s
[INFO] running `Command { std: "docker" "inspect" "0476b04373d752e24504e707c53828982d01bec733cc7edd6efa69d1c528d97b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0476b04373d752e24504e707c53828982d01bec733cc7edd6efa69d1c528d97b", kill_on_drop: false }`
[INFO] [stdout] 0476b04373d752e24504e707c53828982d01bec733cc7edd6efa69d1c528d97b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3867e3fa573c275905bce2846044a251d16421284c4f20ec629664a8de34aef9
[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" "3867e3fa573c275905bce2846044a251d16421284c4f20ec629664a8de34aef9", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/xron-533e7a0004fc0d80
[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] [stderr]      Running /opt/rustwide/target/debug/deps/xron-100a15c248dd5a68
[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] [stderr]    Doc-tests xron
[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" "3867e3fa573c275905bce2846044a251d16421284c4f20ec629664a8de34aef9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3867e3fa573c275905bce2846044a251d16421284c4f20ec629664a8de34aef9", kill_on_drop: false }`
[INFO] [stdout] 3867e3fa573c275905bce2846044a251d16421284c4f20ec629664a8de34aef9