[INFO] fetching crate i2c-linux-sys 0.2.0...
[INFO] testing i2c-linux-sys-0.2.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate i2c-linux-sys 0.2.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate i2c-linux-sys 0.2.0 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 i2c-linux-sys 0.2.0
[INFO] finished tweaking crates.io crate i2c-linux-sys 0.2.0
[INFO] tweaked toml for crates.io crate i2c-linux-sys 0.2.0 written to /workspace/builds/worker-4/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-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" "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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 5b24e456ffd9d6f09a5beb9204cf836571ccd68bdf0945f06bb70c28ec02d502
[INFO] running `Command { std: "docker" "start" "-a" "5b24e456ffd9d6f09a5beb9204cf836571ccd68bdf0945f06bb70c28ec02d502", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5b24e456ffd9d6f09a5beb9204cf836571ccd68bdf0945f06bb70c28ec02d502", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b24e456ffd9d6f09a5beb9204cf836571ccd68bdf0945f06bb70c28ec02d502", kill_on_drop: false }`
[INFO] [stdout] 5b24e456ffd9d6f09a5beb9204cf836571ccd68bdf0945f06bb70c28ec02d502
[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" "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] 425dcb1b23cd505c3b4c26124a6152e9b711818cf3ec72a64d2dd8edb4e91b9c
[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" "425dcb1b23cd505c3b4c26124a6152e9b711818cf3ec72a64d2dd8edb4e91b9c", kill_on_drop: false }`
[INFO] [stderr]    Compiling i2c-linux-sys v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.50s
[INFO] running `Command { std: "docker" "inspect" "425dcb1b23cd505c3b4c26124a6152e9b711818cf3ec72a64d2dd8edb4e91b9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "425dcb1b23cd505c3b4c26124a6152e9b711818cf3ec72a64d2dd8edb4e91b9c", kill_on_drop: false }`
[INFO] [stdout] 425dcb1b23cd505c3b4c26124a6152e9b711818cf3ec72a64d2dd8edb4e91b9c
[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" "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] 065b02fc9ab6da95ac9573c6778c1e78aa0877933c89894bed8d0e5682f2686d
[INFO] running `Command { std: "docker" "start" "-a" "065b02fc9ab6da95ac9573c6778c1e78aa0877933c89894bed8d0e5682f2686d", kill_on_drop: false }`
[INFO] [stderr]    Compiling i2c-linux-sys v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.12s
[INFO] running `Command { std: "docker" "inspect" "065b02fc9ab6da95ac9573c6778c1e78aa0877933c89894bed8d0e5682f2686d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "065b02fc9ab6da95ac9573c6778c1e78aa0877933c89894bed8d0e5682f2686d", kill_on_drop: false }`
[INFO] [stdout] 065b02fc9ab6da95ac9573c6778c1e78aa0877933c89894bed8d0e5682f2686d
[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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5d8aeb53b126cdec5be08745a4e8b7e7d09cd021a0300bd19992f3f8ef9ecbad
[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" "5d8aeb53b126cdec5be08745a4e8b7e7d09cd021a0300bd19992f3f8ef9ecbad", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/i2c_linux_sys-e8e59389098ea9af
[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] [stderr]    Doc-tests i2c-linux-sys
[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" "5d8aeb53b126cdec5be08745a4e8b7e7d09cd021a0300bd19992f3f8ef9ecbad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d8aeb53b126cdec5be08745a4e8b7e7d09cd021a0300bd19992f3f8ef9ecbad", kill_on_drop: false }`
[INFO] [stdout] 5d8aeb53b126cdec5be08745a4e8b7e7d09cd021a0300bd19992f3f8ef9ecbad