[INFO] fetching crate max31856 0.0.1...
[INFO] testing max31856-0.0.1 against 1.55.0 for beta-1.56-1
[INFO] extracting crate max31856 0.0.1 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate max31856 0.0.1 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 max31856 0.0.1
[INFO] finished tweaking crates.io crate max31856 0.0.1
[INFO] tweaked toml for crates.io crate max31856 0.0.1 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate crates.io crate max31856 0.0.1 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] c534e804b9f45dee8bc1de798fdc2d2d04c322119a74cfcff35c2c9ee8e2f43c
[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" "c534e804b9f45dee8bc1de798fdc2d2d04c322119a74cfcff35c2c9ee8e2f43c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c534e804b9f45dee8bc1de798fdc2d2d04c322119a74cfcff35c2c9ee8e2f43c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c534e804b9f45dee8bc1de798fdc2d2d04c322119a74cfcff35c2c9ee8e2f43c", kill_on_drop: false }`
[INFO] [stdout] c534e804b9f45dee8bc1de798fdc2d2d04c322119a74cfcff35c2c9ee8e2f43c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] [stdout] c591e41c3c9a94cd9c6cf50878b2c8544433c59c87a3ecba42e48705fa93cb4e
[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" "c591e41c3c9a94cd9c6cf50878b2c8544433c59c87a3ecba42e48705fa93cb4e", kill_on_drop: false }`
[INFO] [stderr]    Compiling embedded-hal v0.2.4
[INFO] [stderr]    Compiling max31856 v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.76s
[INFO] running `Command { std: "docker" "inspect" "c591e41c3c9a94cd9c6cf50878b2c8544433c59c87a3ecba42e48705fa93cb4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c591e41c3c9a94cd9c6cf50878b2c8544433c59c87a3ecba42e48705fa93cb4e", kill_on_drop: false }`
[INFO] [stdout] c591e41c3c9a94cd9c6cf50878b2c8544433c59c87a3ecba42e48705fa93cb4e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] a4fac2ad6f041fc882a2e80ba6abd581dceaede9c46f05b3bd3773232539cf7f
[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" "a4fac2ad6f041fc882a2e80ba6abd581dceaede9c46f05b3bd3773232539cf7f", kill_on_drop: false }`
[INFO] [stderr]    Compiling ioctl-rs v0.1.6
[INFO] [stderr]    Compiling termios v0.2.2
[INFO] [stderr]    Compiling serial-core v0.4.0
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]    Compiling embedded-hal-mock v0.7.2
[INFO] [stderr]    Compiling serial-unix v0.4.0
[INFO] [stderr]    Compiling spidev v0.4.0
[INFO] [stderr]    Compiling sysfs_gpio v0.5.4
[INFO] [stderr]    Compiling i2cdev v0.4.4
[INFO] [stderr]    Compiling linux-embedded-hal v0.3.0
[INFO] [stderr]    Compiling max31856 v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 9.25s
[INFO] running `Command { std: "docker" "inspect" "a4fac2ad6f041fc882a2e80ba6abd581dceaede9c46f05b3bd3773232539cf7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a4fac2ad6f041fc882a2e80ba6abd581dceaede9c46f05b3bd3773232539cf7f", kill_on_drop: false }`
[INFO] [stdout] a4fac2ad6f041fc882a2e80ba6abd581dceaede9c46f05b3bd3773232539cf7f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] ab24853f49fc73dea47812e3cb94e1e526d27ecbe1ee49d0d8240c7fbad752f6
[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" "ab24853f49fc73dea47812e3cb94e1e526d27ecbe1ee49d0d8240c7fbad752f6", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/max31856-b9dad923ceddacb1)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test internal::can_extract_max31856_c0_c1 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/integration.rs (/opt/rustwide/target/debug/deps/integration-719313e488efd29f)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test can_create_max31856_options ... ok
[INFO] [stdout] test can_send_configuration ... ok
[INFO] [stdout] test can_read_negative_temperature_normally_off ... ok
[INFO] [stdout] test can_read_temperature_normally_off ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests max31856
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 28) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 28) stdout ----
[INFO] [stdout] error: expected one of `;` or `as`, found keyword `extern`
[INFO] [stdout]  --> src/lib.rs:28:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | extern crate max31856
[INFO] [stdout]   |                      - expected one of `;` or `as`
[INFO] [stdout] 3 | extern crate linux_embedded_hal
[INFO] [stdout]   | ^^^^^^ unexpected token
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 28)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.20s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "ab24853f49fc73dea47812e3cb94e1e526d27ecbe1ee49d0d8240c7fbad752f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab24853f49fc73dea47812e3cb94e1e526d27ecbe1ee49d0d8240c7fbad752f6", kill_on_drop: false }`
[INFO] [stdout] ab24853f49fc73dea47812e3cb94e1e526d27ecbe1ee49d0d8240c7fbad752f6