[INFO] fetching crate zg-co2 2.1.0...
[INFO] testing zg-co2-2.1.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate zg-co2 2.1.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate zg-co2 2.1.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate zg-co2 2.1.0
[INFO] finished tweaking crates.io crate zg-co2 2.1.0
[INFO] tweaked toml for crates.io crate zg-co2 2.1.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "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] 3a4a532c269ec171e5112d2553e1259ded68d02f2735dd84f361771092febe98
[INFO] running `Command { std: "docker" "start" "-a" "3a4a532c269ec171e5112d2553e1259ded68d02f2735dd84f361771092febe98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3a4a532c269ec171e5112d2553e1259ded68d02f2735dd84f361771092febe98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a4a532c269ec171e5112d2553e1259ded68d02f2735dd84f361771092febe98", kill_on_drop: false }`
[INFO] [stdout] 3a4a532c269ec171e5112d2553e1259ded68d02f2735dd84f361771092febe98
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "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] dae439e6e0f39cf80d3fee39155a6fc53fc0ca96b9f3708bbf84f218ddf317e8
[INFO] running `Command { std: "docker" "start" "-a" "dae439e6e0f39cf80d3fee39155a6fc53fc0ca96b9f3708bbf84f218ddf317e8", kill_on_drop: false }`
[INFO] [stderr]    Compiling zg-co2 v2.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.38s
[INFO] running `Command { std: "docker" "inspect" "dae439e6e0f39cf80d3fee39155a6fc53fc0ca96b9f3708bbf84f218ddf317e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dae439e6e0f39cf80d3fee39155a6fc53fc0ca96b9f3708bbf84f218ddf317e8", kill_on_drop: false }`
[INFO] [stdout] dae439e6e0f39cf80d3fee39155a6fc53fc0ca96b9f3708bbf84f218ddf317e8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f2bc8f5f5a897e80cae9dd241221357bfc2d04b50e461fd32becb32b83dd2693
[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" "f2bc8f5f5a897e80cae9dd241221357bfc2d04b50e461fd32becb32b83dd2693", kill_on_drop: false }`
[INFO] [stderr]    Compiling zg-co2 v2.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.88s
[INFO] running `Command { std: "docker" "inspect" "f2bc8f5f5a897e80cae9dd241221357bfc2d04b50e461fd32becb32b83dd2693", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2bc8f5f5a897e80cae9dd241221357bfc2d04b50e461fd32becb32b83dd2693", kill_on_drop: false }`
[INFO] [stdout] f2bc8f5f5a897e80cae9dd241221357bfc2d04b50e461fd32becb32b83dd2693
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9f8b9e9c49f8a4b01166ed0af1cf2b916827aa853fab706e7afb827ee1315ae4
[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" "9f8b9e9c49f8a4b01166ed0af1cf2b916827aa853fab706e7afb827ee1315ae4", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/zg_co2-3e8005fd10807116)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests zg-co2
[INFO] [stdout] running 3 tests
[INFO] [stdout] test error::tests::test_send ... ok
[INFO] [stdout] test tests::test_decode ... ok
[INFO] [stdout] test error::tests::test_sync ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/lib.rs - (line 20) - compile ... ok
[INFO] [stdout] test src/error.rs - error::Error (line 7) ... ok
[INFO] [stdout] test src/lib.rs - decode (line 86) ... ok
[INFO] [stdout] test src/lib.rs - SingleReading (line 57) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.63s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "9f8b9e9c49f8a4b01166ed0af1cf2b916827aa853fab706e7afb827ee1315ae4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f8b9e9c49f8a4b01166ed0af1cf2b916827aa853fab706e7afb827ee1315ae4", kill_on_drop: false }`
[INFO] [stdout] 9f8b9e9c49f8a4b01166ed0af1cf2b916827aa853fab706e7afb827ee1315ae4