[INFO] fetching crate vl53l1x-uld 2.0.0...
[INFO] checking vl53l1x-uld-2.0.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate vl53l1x-uld 2.0.0 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate vl53l1x-uld 2.0.0 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate vl53l1x-uld 2.0.0
[INFO] finished tweaking crates.io crate vl53l1x-uld 2.0.0
[INFO] tweaked toml for crates.io crate vl53l1x-uld 2.0.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate vl53l1x-uld 2.0.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ufmt-write v0.1.0
[INFO] [stderr]   Downloaded cortex-m v0.7.6
[INFO] [stderr]   Downloaded embedded-hal-mock v0.8.0
[INFO] [stderr]   Downloaded linux-embedded-hal v0.3.2
[INFO] [stderr]   Downloaded shared-bus v0.2.5
[INFO] [stderr]   Downloaded volatile-register v0.2.1
[INFO] [stderr]   Downloaded rtt-target v0.2.2
[INFO] [stderr]   Downloaded vl53l1-reg v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 497df58ea642d2bf09571acea2e6ec50cb8e1167a8da77e26a3e1688655f5717
[INFO] running `Command { std: "docker" "start" "-a" "497df58ea642d2bf09571acea2e6ec50cb8e1167a8da77e26a3e1688655f5717", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "497df58ea642d2bf09571acea2e6ec50cb8e1167a8da77e26a3e1688655f5717", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "497df58ea642d2bf09571acea2e6ec50cb8e1167a8da77e26a3e1688655f5717", kill_on_drop: false }`
[INFO] [stdout] 497df58ea642d2bf09571acea2e6ec50cb8e1167a8da77e26a3e1688655f5717
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0cd99be16e0d6e6f7799773a6fa665ed9a10eca484561ca91ee67976dd630a1b
[INFO] running `Command { std: "docker" "start" "-a" "0cd99be16e0d6e6f7799773a6fa665ed9a10eca484561ca91ee67976dd630a1b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.137
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]     Checking nb v1.0.0
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling cortex-m v0.7.6
[INFO] [stderr]     Checking vcell v0.1.3
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling cortex-m v0.6.7
[INFO] [stderr]     Checking bitfield v0.13.2
[INFO] [stderr]     Checking ufmt-write v0.1.0
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling generic-array v0.14.6
[INFO] [stderr]     Checking once_cell v1.16.0
[INFO] [stderr]     Checking volatile-register v0.2.1
[INFO] [stderr]     Checking nb v0.1.3
[INFO] [stderr]     Checking embedded-hal v0.2.7
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking embedded-hal-mock v0.8.0
[INFO] [stderr]     Checking shared-bus v0.2.5
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling bare-metal v0.2.5
[INFO] [stderr]     Checking generic-array v0.13.3
[INFO] [stderr]     Checking generic-array v0.12.4
[INFO] [stderr]     Checking nix v0.23.1
[INFO] [stderr]     Checking ioctl-rs v0.1.6
[INFO] [stderr]     Checking termios v0.2.2
[INFO] [stderr]     Checking serial-core v0.4.0
[INFO] [stderr]     Checking as-slice v0.1.5
[INFO] [stderr]     Checking serial-unix v0.4.0
[INFO] [stderr]     Checking aligned v0.3.5
[INFO] [stderr]     Checking rtt-target v0.2.2
[INFO] [stderr]     Checking vl53l1-reg v0.1.0
[INFO] [stderr]     Checking spidev v0.5.1
[INFO] [stderr]     Checking i2cdev v0.5.1
[INFO] [stderr]     Checking gpio-cdev v0.5.1
[INFO] [stderr]     Checking sysfs_gpio v0.6.1
[INFO] [stderr]     Checking linux-embedded-hal v0.3.2
[INFO] [stderr]     Checking vl53l1x-uld v2.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `vl53l1x_uld` is imported redundantly
[INFO] [stdout]  --> examples/multi_device.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     self,
[INFO] [stdout]   |     ^^^^ the item `vl53l1x_uld` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `vl53l1x_uld` is imported redundantly
[INFO] [stdout]  --> examples/write_register.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     self,
[INFO] [stdout]   |     ^^^^ the item `vl53l1x_uld` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `vl53l1x_uld` is imported redundantly
[INFO] [stdout]  --> examples/continous_measure.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     self,
[INFO] [stdout]   |     ^^^^ the item `vl53l1x_uld` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `vl53l1x_uld` is imported redundantly
[INFO] [stdout]  --> examples/long_distance_mode.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     self,
[INFO] [stdout]   |     ^^^^ the item `vl53l1x_uld` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 15.43s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: vl53l1-reg v0.1.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 3`
[INFO] running `Command { std: "docker" "inspect" "0cd99be16e0d6e6f7799773a6fa665ed9a10eca484561ca91ee67976dd630a1b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0cd99be16e0d6e6f7799773a6fa665ed9a10eca484561ca91ee67976dd630a1b", kill_on_drop: false }`
[INFO] [stdout] 0cd99be16e0d6e6f7799773a6fa665ed9a10eca484561ca91ee67976dd630a1b