[INFO] fetching crate zg-co2 2.0.1...
[INFO] testing zg-co2-2.0.1 against 1.49.0 for beta-1.50-1
[INFO] extracting crate zg-co2 2.0.1 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate zg-co2 2.0.1 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 zg-co2 2.0.1
[INFO] finished tweaking crates.io crate zg-co2 2.0.1
[INFO] tweaked toml for crates.io crate zg-co2 2.0.1 written to /workspace/builds/worker-3/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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 7c8e60693aac289578d5edd31ec1d0938beb579e1fdf8e56e70c0bf371284e29
[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" "7c8e60693aac289578d5edd31ec1d0938beb579e1fdf8e56e70c0bf371284e29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7c8e60693aac289578d5edd31ec1d0938beb579e1fdf8e56e70c0bf371284e29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c8e60693aac289578d5edd31ec1d0938beb579e1fdf8e56e70c0bf371284e29", kill_on_drop: false }`
[INFO] [stdout] 7c8e60693aac289578d5edd31ec1d0938beb579e1fdf8e56e70c0bf371284e29
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 429b81268900806850de304def357674028ccb882a1fc16888760f43fe78a8d5
[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" "429b81268900806850de304def357674028ccb882a1fc16888760f43fe78a8d5", kill_on_drop: false }`
[INFO] [stderr]    Compiling zg-co2 v2.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.79s
[INFO] running `Command { std: "docker" "inspect" "429b81268900806850de304def357674028ccb882a1fc16888760f43fe78a8d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "429b81268900806850de304def357674028ccb882a1fc16888760f43fe78a8d5", kill_on_drop: false }`
[INFO] [stdout] 429b81268900806850de304def357674028ccb882a1fc16888760f43fe78a8d5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c3926b733f4e1e419200248426d8b8051b8c0d6dc5a7396d384cb11ab07686a0
[INFO] running `Command { std: "docker" "start" "-a" "c3926b733f4e1e419200248426d8b8051b8c0d6dc5a7396d384cb11ab07686a0", kill_on_drop: false }`
[INFO] [stderr]    Compiling zg-co2 v2.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.99s
[INFO] running `Command { std: "docker" "inspect" "c3926b733f4e1e419200248426d8b8051b8c0d6dc5a7396d384cb11ab07686a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3926b733f4e1e419200248426d8b8051b8c0d6dc5a7396d384cb11ab07686a0", kill_on_drop: false }`
[INFO] [stdout] c3926b733f4e1e419200248426d8b8051b8c0d6dc5a7396d384cb11ab07686a0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] ee21082f3c4a68c6a5972b418957745308d158cfb2c56d111bc1cac72e057248
[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" "ee21082f3c4a68c6a5972b418957745308d158cfb2c56d111bc1cac72e057248", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/zg_co2-0621023512f769cf
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test error::tests::test_sync ... ok
[INFO] [stdout] test tests::test_decode ... ok
[INFO] [stdout] test error::tests::test_send ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests zg-co2
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/lib.rs - (line 20) ... ok
[INFO] [stdout] test src/lib.rs - decode (line 91) ... ok
[INFO] [stdout] test src/lib.rs - SingleReading (line 57) ... ok
[INFO] [stdout] test src/error.rs - error::Error (line 7) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ee21082f3c4a68c6a5972b418957745308d158cfb2c56d111bc1cac72e057248", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee21082f3c4a68c6a5972b418957745308d158cfb2c56d111bc1cac72e057248", kill_on_drop: false }`
[INFO] [stdout] ee21082f3c4a68c6a5972b418957745308d158cfb2c56d111bc1cac72e057248