[INFO] fetching crate usb2642-i2c 0.1.1...
[INFO] checking usb2642-i2c-0.1.1 against master#36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923 for pr-81863
[INFO] extracting crate usb2642-i2c 0.1.1 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate usb2642-i2c 0.1.1 on toolchain 36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate usb2642-i2c 0.1.1
[INFO] finished tweaking crates.io crate usb2642-i2c 0.1.1
[INFO] tweaked toml for crates.io crate usb2642-i2c 0.1.1 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate usb2642-i2c 0.1.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "fetch" "--locked" "--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-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:ce6408862c0f4858e6cd2b85b2cf085ff7d0d6323904d0a94b71664a228554ab" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 39846e080dfe0550f5b08ca7f0c76d6512ccff3bf9a26d29ce82916091aaaf88
[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" "39846e080dfe0550f5b08ca7f0c76d6512ccff3bf9a26d29ce82916091aaaf88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "39846e080dfe0550f5b08ca7f0c76d6512ccff3bf9a26d29ce82916091aaaf88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "39846e080dfe0550f5b08ca7f0c76d6512ccff3bf9a26d29ce82916091aaaf88", kill_on_drop: false }`
[INFO] [stdout] 39846e080dfe0550f5b08ca7f0c76d6512ccff3bf9a26d29ce82916091aaaf88
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=forbid" "-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:ce6408862c0f4858e6cd2b85b2cf085ff7d0d6323904d0a94b71664a228554ab" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "check" "--frozen" "--all" "--all-targets" "--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] 4b3ee33740a397c7b722212582ed696146df969a811b3486cb417df06c8254ef
[INFO] running `Command { std: "docker" "start" "-a" "4b3ee33740a397c7b722212582ed696146df969a811b3486cb417df06c8254ef", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]     Checking bitflags v0.8.2
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking nix v0.19.1
[INFO] [stderr]     Checking usb2642-i2c v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> examples/pca9536.rs:21:1
[INFO] [stdout]    |
[INFO] [stdout] 21 | / bitflags! {
[INFO] [stdout] 22 | |     pub flags GpioPin: u8 {
[INFO] [stdout] 23 | |         const GPIO_NONE = 0x00,
[INFO] [stdout] 24 | |         const GPIO0 = 0x01,
[INFO] [stdout] ...  |
[INFO] [stdout] 29 | |     }
[INFO] [stdout] 30 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> examples/pca9536.rs:21:1
[INFO] [stdout]    |
[INFO] [stdout] 21 | / bitflags! {
[INFO] [stdout] 22 | |     pub flags GpioPin: u8 {
[INFO] [stdout] 23 | |         const GPIO_NONE = 0x00,
[INFO] [stdout] 24 | |         const GPIO0 = 0x01,
[INFO] [stdout] ...  |
[INFO] [stdout] 29 | |     }
[INFO] [stdout] 30 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.78s
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "4b3ee33740a397c7b722212582ed696146df969a811b3486cb417df06c8254ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b3ee33740a397c7b722212582ed696146df969a811b3486cb417df06c8254ef", kill_on_drop: false }`
[INFO] [stdout] 4b3ee33740a397c7b722212582ed696146df969a811b3486cb417df06c8254ef