[INFO] fetching crate mcp3xxx 0.1.0-pre.1...
[INFO] testing mcp3xxx-0.1.0-pre.1 against 1.55.0 for beta-1.56-1
[INFO] extracting crate mcp3xxx 0.1.0-pre.1 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate mcp3xxx 0.1.0-pre.1 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 mcp3xxx 0.1.0-pre.1
[INFO] finished tweaking crates.io crate mcp3xxx 0.1.0-pre.1
[INFO] tweaked toml for crates.io crate mcp3xxx 0.1.0-pre.1 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate mcp3xxx 0.1.0-pre.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "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] [stdout] 616685f1790d789ad23313d62a1e32acd778ed9acd26c204989a3ecbd0d2af73
[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" "616685f1790d789ad23313d62a1e32acd778ed9acd26c204989a3ecbd0d2af73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "616685f1790d789ad23313d62a1e32acd778ed9acd26c204989a3ecbd0d2af73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "616685f1790d789ad23313d62a1e32acd778ed9acd26c204989a3ecbd0d2af73", kill_on_drop: false }`
[INFO] [stdout] 616685f1790d789ad23313d62a1e32acd778ed9acd26c204989a3ecbd0d2af73
[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" "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] e1ad62e7ae688352c21becd769dc6fbb2fefc5d65f40254a915d540c048cdc34
[INFO] running `Command { std: "docker" "start" "-a" "e1ad62e7ae688352c21becd769dc6fbb2fefc5d65f40254a915d540c048cdc34", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.58
[INFO] [stderr]    Compiling lazy_static v1.3.0
[INFO] [stderr]    Compiling rppal v0.11.3
[INFO] [stderr]    Compiling mcp3xxx v0.1.0-pre.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.39s
[INFO] running `Command { std: "docker" "inspect" "e1ad62e7ae688352c21becd769dc6fbb2fefc5d65f40254a915d540c048cdc34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1ad62e7ae688352c21becd769dc6fbb2fefc5d65f40254a915d540c048cdc34", kill_on_drop: false }`
[INFO] [stdout] e1ad62e7ae688352c21becd769dc6fbb2fefc5d65f40254a915d540c048cdc34
[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" "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] 535d198b16f03a7972356d6c5d878b5a72411713e54fbb48fd8f3e7ae073b274
[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" "535d198b16f03a7972356d6c5d878b5a72411713e54fbb48fd8f3e7ae073b274", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling mcp3xxx v0.1.0-pre.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.05s
[INFO] running `Command { std: "docker" "inspect" "535d198b16f03a7972356d6c5d878b5a72411713e54fbb48fd8f3e7ae073b274", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "535d198b16f03a7972356d6c5d878b5a72411713e54fbb48fd8f3e7ae073b274", kill_on_drop: false }`
[INFO] [stdout] 535d198b16f03a7972356d6c5d878b5a72411713e54fbb48fd8f3e7ae073b274
[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" "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] e51d2af60bde89ef6a67c965ced5807a8daa4ba1e5b962326bbeb37793c0f4ea
[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" "e51d2af60bde89ef6a67c965ced5807a8daa4ba1e5b962326bbeb37793c0f4ea", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/mcp3xxx-7a13154cef134902)
[INFO] [stdout] running 0 tests
[INFO] [stderr]    Doc-tests mcp3xxx
[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] [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" "e51d2af60bde89ef6a67c965ced5807a8daa4ba1e5b962326bbeb37793c0f4ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e51d2af60bde89ef6a67c965ced5807a8daa4ba1e5b962326bbeb37793c0f4ea", kill_on_drop: false }`
[INFO] [stdout] e51d2af60bde89ef6a67c965ced5807a8daa4ba1e5b962326bbeb37793c0f4ea