[INFO] updating cached repository https://github.com/laser/rust-adafruit-bonnet-playground
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 6a3dc92fecbfdf2337acc2a77211d8c0627ab6bf
[INFO] checking laser/rust-adafruit-bonnet-playground against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flaser%2Frust-adafruit-bonnet-playground" "/workspace/builds/worker-6/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/laser/rust-adafruit-bonnet-playground on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/laser/rust-adafruit-bonnet-playground
[INFO] finished tweaking git repo https://github.com/laser/rust-adafruit-bonnet-playground
[INFO] tweaked toml for git repo https://github.com/laser/rust-adafruit-bonnet-playground written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/laser/rust-adafruit-bonnet-playground already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f39ae2f5506086bf17868e70d8cfbe229abb55e499d8ca1240cff71d09e904a2
[INFO] running `"docker" "start" "-a" "f39ae2f5506086bf17868e70d8cfbe229abb55e499d8ca1240cff71d09e904a2"`
[INFO] [stderr]    Compiling autocfg v0.1.4
[INFO] [stderr]    Compiling syn v0.15.36
[INFO] [stderr]    Compiling libc v0.2.58 (https://github.com/rust-lang/libc#5bbba03e)
[INFO] [stderr]    Compiling nix v0.13.0 (https://github.com/nix-rust/nix/?rev=196b05b5c7b#196b05b5)
[INFO] [stderr]     Checking nb v0.1.2
[INFO] [stderr]    Compiling ssd1306 v0.2.5
[INFO] [stderr]    Compiling mio_httpc v0.8.6
[INFO] [stderr]     Checking md5 v0.6.1
[INFO] [stderr]     Checking cast v0.2.2
[INFO] [stderr]    Compiling ring v0.14.6
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]     Checking nix v0.14.1
[INFO] [stderr]     Checking libflate v0.1.23
[INFO] [stderr]     Checking nix v0.6.0
[INFO] [stderr]     Checking embedded-hal v0.2.3
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling backtrace v0.3.30
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking tinybmp v0.1.0
[INFO] [stderr]     Checking tinytga v0.1.0
[INFO] [stderr]     Checking embedded-graphics v0.4.9
[INFO] [stderr]     Checking spidev v0.3.0
[INFO] [stderr]     Checking sysfs_gpio v0.5.4
[INFO] [stderr]     Checking webpki v0.19.1
[INFO] [stderr]     Checking sct v0.5.0
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]    Compiling pest_generator v2.1.0
[INFO] [stderr]     Checking rustls v0.15.2
[INFO] [stderr]     Checking webpki-roots v0.16.0
[INFO] [stderr]     Checking i2cdev v0.4.1 (https://github.com/laser/rust-i2cdev#a148c1e2)
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling serde_derive v1.0.92
[INFO] [stderr]     Checking linux-embedded-hal v0.2.2 (https://github.com/laser/linux-embedded-hal#09847e70)
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking serde v1.0.92
[INFO] [stderr]     Checking serde_json v1.0.39
[INFO] [stderr]     Checking adafruit-bonnet-playground v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:45:9
[INFO] [stderr]    |
[INFO] [stderr] 45 | /         CallBuilder::get()
[INFO] [stderr] 46 | |             .timeout_ms(5000)
[INFO] [stderr] 47 | |             .url("http://worldclockapi.com/api/json/pst/now")?
[INFO] [stderr] 48 | |             .exec()
[INFO] [stderr] ...  |
[INFO] [stderr] 63 | |                 eprintln!("request lib error {:?}", x);
[INFO] [stderr] 64 | |             });
[INFO] [stderr]    | |_______________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:50:17
[INFO] [stderr]    |
[INFO] [stderr] 50 | /                 serde_json::from_slice(&body)
[INFO] [stderr] 51 | |                     .map(|time: Time| {
[INFO] [stderr] 52 | |                         let s: Vec<&str> = time.current_date_time.split("T").skip(1).collect();
[INFO] [stderr] 53 | |                         let s: Vec<&str> = s[0].split("-").take(1).collect();
[INFO] [stderr] ...  |
[INFO] [stderr] 59 | |                         eprintln!("can't parse JSON {:?}", x);
[INFO] [stderr] 60 | |                     });
[INFO] [stderr]    | |_______________________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:45:9
[INFO] [stderr]    |
[INFO] [stderr] 45 | /         CallBuilder::get()
[INFO] [stderr] 46 | |             .timeout_ms(5000)
[INFO] [stderr] 47 | |             .url("http://worldclockapi.com/api/json/pst/now")?
[INFO] [stderr] 48 | |             .exec()
[INFO] [stderr] ...  |
[INFO] [stderr] 63 | |                 eprintln!("request lib error {:?}", x);
[INFO] [stderr] 64 | |             });
[INFO] [stderr]    | |_______________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:50:17
[INFO] [stderr]    |
[INFO] [stderr] 50 | /                 serde_json::from_slice(&body)
[INFO] [stderr] 51 | |                     .map(|time: Time| {
[INFO] [stderr] 52 | |                         let s: Vec<&str> = time.current_date_time.split("T").skip(1).collect();
[INFO] [stderr] 53 | |                         let s: Vec<&str> = s[0].split("-").take(1).collect();
[INFO] [stderr] ...  |
[INFO] [stderr] 59 | |                         eprintln!("can't parse JSON {:?}", x);
[INFO] [stderr] 60 | |                     });
[INFO] [stderr]    | |_______________________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 03s
[INFO] running `"docker" "inspect" "f39ae2f5506086bf17868e70d8cfbe229abb55e499d8ca1240cff71d09e904a2"`
[INFO] running `"docker" "rm" "-f" "f39ae2f5506086bf17868e70d8cfbe229abb55e499d8ca1240cff71d09e904a2"`
[INFO] [stdout] f39ae2f5506086bf17868e70d8cfbe229abb55e499d8ca1240cff71d09e904a2