[INFO] cloning repository https://github.com/maxjoehnk/pi-system-logger [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/maxjoehnk/pi-system-logger" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaxjoehnk%2Fpi-system-logger", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaxjoehnk%2Fpi-system-logger'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 94ca43bdba3ea46c2537c5938f06c28dc6df266e [INFO] checking maxjoehnk/pi-system-logger against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaxjoehnk%2Fpi-system-logger" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/maxjoehnk/pi-system-logger 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 git repo https://github.com/maxjoehnk/pi-system-logger [INFO] finished tweaking git repo https://github.com/maxjoehnk/pi-system-logger [INFO] tweaked toml for git repo https://github.com/maxjoehnk/pi-system-logger written to /workspace/builds/worker-3-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/maxjoehnk/pi-system-logger 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 strum v0.10.0 [INFO] [stderr] Downloaded failure v0.1.1 [INFO] [stderr] Downloaded toml v0.4.6 [INFO] [stderr] Downloaded serde_derive v1.0.70 [INFO] [stderr] Downloaded lazy_static v1.0.2 [INFO] [stderr] Downloaded strum_macros v0.10.0 [INFO] [stderr] Downloaded synstructure v0.6.1 [INFO] [stderr] Downloaded failure_derive v0.1.1 [INFO] [stderr] Downloaded influent v0.4.1 [INFO] [stderr] Downloaded serde v1.0.70 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 6ca5f5111a36985eaf2329239958b551f88871b176e4b89a1bb6f4e0e7596b9a [INFO] running `Command { std: "docker" "start" "-a" "6ca5f5111a36985eaf2329239958b551f88871b176e4b89a1bb6f4e0e7596b9a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "6ca5f5111a36985eaf2329239958b551f88871b176e4b89a1bb6f4e0e7596b9a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6ca5f5111a36985eaf2329239958b551f88871b176e4b89a1bb6f4e0e7596b9a", kill_on_drop: false }` [INFO] [stdout] 6ca5f5111a36985eaf2329239958b551f88871b176e4b89a1bb6f4e0e7596b9a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] aaeb1ef04276fa321593fa83ac14a181736c8c3ce24064197561d1e99c261ac3 [INFO] running `Command { std: "docker" "start" "-a" "aaeb1ef04276fa321593fa83ac14a181736c8c3ce24064197561d1e99c261ac3", kill_on_drop: false }` [INFO] [stderr] Checking libc v0.2.42 [INFO] [stderr] Checking cfg-if v0.1.4 [INFO] [stderr] Compiling cc v1.0.18 [INFO] [stderr] Checking matches v0.1.6 [INFO] [stderr] Compiling unicode-xid v0.0.4 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Compiling version_check v0.1.4 [INFO] [stderr] Compiling quote v0.3.15 [INFO] [stderr] Compiling httparse v1.3.2 [INFO] [stderr] Checking unicode-normalization v0.1.7 [INFO] [stderr] Checking byteorder v1.2.3 [INFO] [stderr] Checking percent-encoding v1.0.1 [INFO] [stderr] Checking safemem v0.2.0 [INFO] [stderr] Checking void v1.0.2 [INFO] [stderr] Compiling serde v1.0.70 [INFO] [stderr] Compiling regex v1.0.1 [INFO] [stderr] Checking unicode-bidi v0.3.4 [INFO] [stderr] Checking log v0.4.3 [INFO] [stderr] Compiling proc-macro2 v0.4.8 [INFO] [stderr] Compiling synom v0.11.3 [INFO] [stderr] Checking unreachable v1.0.0 [INFO] [stderr] Checking traitobject v0.1.0 [INFO] [stderr] Checking lazy_static v1.0.2 [INFO] [stderr] Checking rustc-demangle v0.1.8 [INFO] [stderr] Checking log v0.3.9 [INFO] [stderr] Checking language-tags v0.2.2 [INFO] [stderr] Compiling syn v0.11.11 [INFO] [stderr] Checking typeable v0.1.2 [INFO] [stderr] Checking ucd-util v0.1.1 [INFO] [stderr] Checking thread_local v0.3.5 [INFO] [stderr] Checking mime v0.2.6 [INFO] [stderr] Checking utf8-ranges v1.0.0 [INFO] [stderr] Checking strum v0.10.0 [INFO] [stderr] Compiling unicase v1.4.2 [INFO] [stderr] Checking regex-syntax v0.6.1 [INFO] [stderr] Checking base64 v0.6.0 [INFO] [stderr] Compiling quote v0.6.3 [INFO] [stderr] Checking time v0.1.40 [INFO] [stderr] Checking memchr v2.0.1 [INFO] [stderr] Compiling syn v0.14.4 [INFO] [stderr] Checking num_cpus v1.8.0 [INFO] [stderr] Checking aho-corasick v0.6.6 [INFO] [stderr] Compiling backtrace-sys v0.1.23 [INFO] [stderr] Compiling synstructure v0.6.1 [INFO] [stderr] Compiling failure_derive v0.1.1 [INFO] [stderr] Checking idna v0.1.5 [INFO] [stderr] Checking backtrace v0.3.9 [INFO] [stderr] Checking failure v0.1.1 [INFO] [stderr] Compiling serde_derive v1.0.70 [INFO] [stderr] Compiling strum_macros v0.10.0 [INFO] [stderr] Checking url v1.7.1 [INFO] [stderr] Checking hyper v0.10.13 [INFO] [stderr] Checking toml v0.4.6 [INFO] [stderr] Checking influent v0.4.1 [INFO] [stderr] Checking pi-system-logging v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `err_msg` [INFO] [stdout] --> src/voltage.rs:1:22 [INFO] [stdout] | [INFO] [stdout] 1 | use failure::{Error, err_msg}; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `err_msg` [INFO] [stdout] --> src/voltage.rs:1:22 [INFO] [stdout] | [INFO] [stdout] 1 | use failure::{Error, err_msg}; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/clock_frequency.rs:7:27 [INFO] [stdout] | [INFO] [stdout] 7 | pub struct ClockFrequency(i32); [INFO] [stdout] | -------------- ^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this struct [INFO] [stdout] | [INFO] [stdout] = note: `ClockFrequency` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 7 | pub struct ClockFrequency(()); [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/temperature.rs:9:24 [INFO] [stdout] | [INFO] [stdout] 9 | pub struct Temperature(f32); [INFO] [stdout] | ----------- ^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this struct [INFO] [stdout] | [INFO] [stdout] = note: `Temperature` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 9 | pub struct Temperature(()); [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/voltage.rs:7:20 [INFO] [stdout] | [INFO] [stdout] 7 | pub struct Voltage(f32); [INFO] [stdout] | ------- ^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this struct [INFO] [stdout] | [INFO] [stdout] = note: `Voltage` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 7 | pub struct Voltage(()); [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/clock_frequency.rs:7:27 [INFO] [stdout] | [INFO] [stdout] 7 | pub struct ClockFrequency(i32); [INFO] [stdout] | -------------- ^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this struct [INFO] [stdout] | [INFO] [stdout] = note: `ClockFrequency` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 7 | pub struct ClockFrequency(()); [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/temperature.rs:9:24 [INFO] [stdout] | [INFO] [stdout] 9 | pub struct Temperature(f32); [INFO] [stdout] | ----------- ^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this struct [INFO] [stdout] | [INFO] [stdout] = note: `Temperature` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 9 | pub struct Temperature(()); [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/voltage.rs:7:20 [INFO] [stdout] | [INFO] [stdout] 7 | pub struct Voltage(f32); [INFO] [stdout] | ------- ^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this struct [INFO] [stdout] | [INFO] [stdout] = note: `Voltage` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 7 | pub struct Voltage(()); [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.24s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: syn v0.14.4, traitobject 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 1` [INFO] running `Command { std: "docker" "inspect" "aaeb1ef04276fa321593fa83ac14a181736c8c3ce24064197561d1e99c261ac3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "aaeb1ef04276fa321593fa83ac14a181736c8c3ce24064197561d1e99c261ac3", kill_on_drop: false }` [INFO] [stdout] aaeb1ef04276fa321593fa83ac14a181736c8c3ce24064197561d1e99c261ac3