[INFO] fetching crate adafruit_gps 0.4.1...
[INFO] checking adafruit_gps-0.4.1 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate adafruit_gps 0.4.1 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate adafruit_gps 0.4.1 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 adafruit_gps 0.4.1
[INFO] finished tweaking crates.io crate adafruit_gps 0.4.1
[INFO] tweaked toml for crates.io crate adafruit_gps 0.4.1 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate crates.io crate adafruit_gps 0.4.1 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded memchr v2.3.3
[INFO] [stderr]   Downloaded thread_local v1.0.1
[INFO] [stderr]   Downloaded void v1.0.2
[INFO] [stderr]   Downloaded libudev-sys v0.1.4
[INFO] [stderr]   Downloaded IOKit-sys v0.1.5
[INFO] [stderr]   Downloaded bincode v1.2.1
[INFO] [stderr]   Downloaded quote v1.0.6
[INFO] [stderr]   Downloaded byteorder v1.3.4
[INFO] [stderr]   Downloaded proc-macro2 v1.0.18
[INFO] [stderr]   Downloaded CoreFoundation-sys v0.1.4
[INFO] [stderr]   Downloaded serde_derive v1.0.111
[INFO] [stderr]   Downloaded aho-corasick v0.7.10
[INFO] [stderr]   Downloaded syn v1.0.30
[INFO] [stderr]   Downloaded libc v0.2.70
[INFO] [stderr]   Downloaded nix v0.14.1
[INFO] [stderr]   Downloaded regex-syntax v0.6.17
[INFO] [stderr]   Downloaded regex v1.3.6
[INFO] [stderr]   Downloaded serde v1.0.111
[INFO] [stderr]   Downloaded winapi v0.3.8
[INFO] [stderr]   Downloaded cc v1.0.50
[INFO] [stderr]   Downloaded mach v0.1.2
[INFO] [stderr]   Downloaded serialport v3.3.0
[INFO] [stderr]   Downloaded unicode-xid v0.2.0
[INFO] [stderr]   Downloaded pkg-config v0.3.17
[INFO] [stderr]   Downloaded libudev v0.2.0
[INFO] [stderr]   Downloaded mach v0.2.3
[INFO] [stderr]   Downloaded bitflags v1.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] b14232f275fe0eed0cf7bc0c3bd7ef8a4ab8b6e3bf48c54ba2da1f60953eb52f
[INFO] running `Command { std: "docker" "start" "-a" "b14232f275fe0eed0cf7bc0c3bd7ef8a4ab8b6e3bf48c54ba2da1f60953eb52f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b14232f275fe0eed0cf7bc0c3bd7ef8a4ab8b6e3bf48c54ba2da1f60953eb52f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b14232f275fe0eed0cf7bc0c3bd7ef8a4ab8b6e3bf48c54ba2da1f60953eb52f", kill_on_drop: false }`
[INFO] [stdout] b14232f275fe0eed0cf7bc0c3bd7ef8a4ab8b6e3bf48c54ba2da1f60953eb52f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 6390f6baeeb33e4c6fb85a6f6515734c113018ed50beccb6a6d710aae3183994
[INFO] running `Command { std: "docker" "start" "-a" "6390f6baeeb33e4c6fb85a6f6515734c113018ed50beccb6a6d710aae3183994", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling libc v0.2.70
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]    Compiling syn v1.0.30
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling serde v1.0.111
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]    Compiling quote v1.0.6
[INFO] [stderr]     Checking libudev v0.2.0
[INFO] [stderr]     Checking serialport v3.3.0
[INFO] [stderr]    Compiling serde_derive v1.0.111
[INFO] [stderr]     Checking bincode v1.2.1
[INFO] [stderr]     Checking adafruit_gps v0.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `serialport` is imported redundantly
[INFO] [stdout]   --> src/pmtk.rs:26:22
[INFO] [stdout]    |
[INFO] [stdout] 26 |     use serialport::{self, ClearBuffer};
[INFO] [stdout]    |                      ^^^^ the item `serialport` 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 `serialport` is imported redundantly
[INFO] [stdout]   --> src/pmtk.rs:26:22
[INFO] [stdout]    |
[INFO] [stdout] 26 |     use serialport::{self, ClearBuffer};
[INFO] [stdout]    |                      ^^^^ the item `serialport` 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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.55s
[INFO] running `Command { std: "docker" "inspect" "6390f6baeeb33e4c6fb85a6f6515734c113018ed50beccb6a6d710aae3183994", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6390f6baeeb33e4c6fb85a6f6515734c113018ed50beccb6a6d710aae3183994", kill_on_drop: false }`
[INFO] [stdout] 6390f6baeeb33e4c6fb85a6f6515734c113018ed50beccb6a6d710aae3183994