[INFO] fetching crate sensor-scd30 0.4.0... [INFO] checking sensor-scd30-0.4.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] extracting crate sensor-scd30 0.4.0 into /workspace/builds/worker-0-tc1/source [INFO] validating manifest of crates.io crate sensor-scd30 0.4.0 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] removed /workspace/builds/worker-0-tc1/source/.cargo/config [INFO] started tweaking crates.io crate sensor-scd30 0.4.0 [INFO] finished tweaking crates.io crate sensor-scd30 0.4.0 [INFO] tweaked toml for crates.io crate sensor-scd30 0.4.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] crate crates.io crate sensor-scd30 0.4.0 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 bitflags v0.3.3 [INFO] [stderr] Downloaded bitflags v0.4.0 [INFO] [stderr] Downloaded i2cdev v0.4.4 [INFO] [stderr] Downloaded spidev v0.3.0 [INFO] [stderr] Downloaded color-backtrace v0.1.3 [INFO] [stderr] Downloaded semver v1.0.5 [INFO] [stderr] Downloaded embedded-hal-mock v0.7.2 [INFO] [stderr] Downloaded simplelog v0.5.3 [INFO] [stderr] Downloaded nix v0.6.0 [INFO] [stderr] Downloaded sysfs_gpio v0.5.4 [INFO] [stderr] Downloaded linux-embedded-hal v0.2.2 [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] c13c9447f07b92aa62835589266421f49370eb0ea2734854926ae628ef90ea0a [INFO] running `Command { std: "docker" "start" "-a" "c13c9447f07b92aa62835589266421f49370eb0ea2734854926ae628ef90ea0a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "c13c9447f07b92aa62835589266421f49370eb0ea2734854926ae628ef90ea0a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c13c9447f07b92aa62835589266421f49370eb0ea2734854926ae628ef90ea0a", kill_on_drop: false }` [INFO] [stdout] c13c9447f07b92aa62835589266421f49370eb0ea2734854926ae628ef90ea0a [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] dd80c8f7341590ae9dc862a45c6d3c21201a6d226dbfc7095bd30d699a0e248b [INFO] running `Command { std: "docker" "start" "-a" "dd80c8f7341590ae9dc862a45c6d3c21201a6d226dbfc7095bd30d699a0e248b", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.118 [INFO] [stderr] Compiling autocfg v1.1.0 [INFO] [stderr] Compiling semver v1.0.5 [INFO] [stderr] Compiling semver v0.1.20 [INFO] [stderr] Checking byteorder v1.4.3 [INFO] [stderr] Compiling syn v0.15.44 [INFO] [stderr] Checking nb v1.0.0 [INFO] [stderr] Compiling memchr v2.4.1 [INFO] [stderr] Checking nb v0.1.3 [INFO] [stderr] Checking unicode-width v0.1.9 [INFO] [stderr] Compiling unicode-segmentation v1.9.0 [INFO] [stderr] Compiling rustc_version v0.1.7 [INFO] [stderr] Checking bitflags v0.4.0 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling num-integer v0.1.44 [INFO] [stderr] Compiling nix v0.6.0 [INFO] [stderr] Compiling heck v0.3.3 [INFO] [stderr] Compiling miniz_oxide v0.4.4 [INFO] [stderr] Checking embedded-hal v0.2.7 [INFO] [stderr] Checking bitflags v0.3.3 [INFO] [stderr] Compiling rustc_version v0.4.0 [INFO] [stderr] Compiling cc v1.0.72 [INFO] [stderr] Checking dirs v1.0.5 [INFO] [stderr] Checking nix v0.14.1 [INFO] [stderr] Compiling cast v0.2.7 [INFO] [stderr] Checking time v0.1.44 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking term v0.5.2 [INFO] [stderr] Checking clap v2.34.0 [INFO] [stderr] Checking gimli v0.26.1 [INFO] [stderr] Checking chrono v0.4.19 [INFO] [stderr] Checking quick-error v1.2.3 [INFO] [stderr] Checking humantime v1.3.0 [INFO] [stderr] Compiling backtrace v0.3.64 [INFO] [stderr] Checking object v0.27.1 [INFO] [stderr] Checking spidev v0.3.0 [INFO] [stderr] Checking rustc-demangle v0.1.21 [INFO] [stderr] Checking embedded-hal-mock v0.7.2 [INFO] [stderr] Checking simplelog v0.5.3 [INFO] [stderr] Checking assert_approx_eq v1.1.0 [INFO] [stderr] Compiling structopt-derive v0.2.18 [INFO] [stderr] Checking sysfs_gpio v0.5.4 [INFO] [stderr] Checking i2cdev v0.4.4 [INFO] [stderr] Checking linux-embedded-hal v0.2.2 [INFO] [stderr] Checking addr2line v0.17.0 [INFO] [stderr] Checking structopt v0.2.18 [INFO] [stderr] Checking sensor-scd30 v0.4.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused imports: `debug`, `trace` [INFO] [stdout] --> src/lib.rs:41:11 [INFO] [stdout] | [INFO] [stdout] 41 | use log::{trace, debug}; [INFO] [stdout] | ^^^^^ ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `delay` is never read [INFO] [stdout] --> src/lib.rs:53:5 [INFO] [stdout] | [INFO] [stdout] 51 | pub struct Scd30 { [INFO] [stdout] | ----- field in this struct [INFO] [stdout] 52 | conn: Conn, [INFO] [stdout] 53 | delay: Delay, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking color-backtrace v0.1.3 [INFO] [stdout] warning: unused imports: `debug`, `trace` [INFO] [stdout] --> src/lib.rs:41:11 [INFO] [stdout] | [INFO] [stdout] 41 | use log::{trace, debug}; [INFO] [stdout] | ^^^^^ ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `delay` is never read [INFO] [stdout] --> src/lib.rs:53:5 [INFO] [stdout] | [INFO] [stdout] 51 | pub struct Scd30 { [INFO] [stdout] | ----- field in this struct [INFO] [stdout] 52 | conn: Conn, [INFO] [stdout] 53 | delay: Delay, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 18.38s [INFO] running `Command { std: "docker" "inspect" "dd80c8f7341590ae9dc862a45c6d3c21201a6d226dbfc7095bd30d699a0e248b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "dd80c8f7341590ae9dc862a45c6d3c21201a6d226dbfc7095bd30d699a0e248b", kill_on_drop: false }` [INFO] [stdout] dd80c8f7341590ae9dc862a45c6d3c21201a6d226dbfc7095bd30d699a0e248b [INFO] checking sensor-scd30-0.4.0 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar [INFO] extracting crate sensor-scd30 0.4.0 into /workspace/builds/worker-0-tc2/source [INFO] validating manifest of crates.io crate sensor-scd30 0.4.0 on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] removed /workspace/builds/worker-0-tc2/source/.cargo/config [INFO] started tweaking crates.io crate sensor-scd30 0.4.0 [INFO] finished tweaking crates.io crate sensor-scd30 0.4.0 [INFO] tweaked toml for crates.io crate sensor-scd30 0.4.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] crate crates.io crate sensor-scd30 0.4.0 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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] f073154b2a6608c8d87e1f44f0f4f05d6994db174de7fe81d9cdf49e60b0fd02 [INFO] running `Command { std: "docker" "start" "-a" "f073154b2a6608c8d87e1f44f0f4f05d6994db174de7fe81d9cdf49e60b0fd02", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "f073154b2a6608c8d87e1f44f0f4f05d6994db174de7fe81d9cdf49e60b0fd02", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f073154b2a6608c8d87e1f44f0f4f05d6994db174de7fe81d9cdf49e60b0fd02", kill_on_drop: false }` [INFO] [stdout] f073154b2a6608c8d87e1f44f0f4f05d6994db174de7fe81d9cdf49e60b0fd02 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] d28e89e52a25c147b0422f7e556851e213fe431655b768f4e42a9b2be3a126b7 [INFO] running `Command { std: "docker" "start" "-a" "d28e89e52a25c147b0422f7e556851e213fe431655b768f4e42a9b2be3a126b7", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.118 [INFO] [stderr] Compiling autocfg v1.1.0 [INFO] [stderr] Compiling semver v1.0.5 [INFO] [stderr] Compiling semver v0.1.20 [INFO] [stderr] Checking byteorder v1.4.3 [INFO] [stderr] Checking nb v1.0.0 [INFO] [stderr] Compiling syn v0.15.44 [INFO] [stderr] Compiling memchr v2.4.1 [INFO] [stderr] Checking nb v0.1.3 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Compiling rustc_version v0.1.7 [INFO] [stderr] Checking bitflags v0.4.0 [INFO] [stderr] Compiling unicode-segmentation v1.9.0 [INFO] [stderr] Checking unicode-width v0.1.9 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling num-integer v0.1.44 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Compiling nix v0.6.0 [INFO] [stderr] Compiling miniz_oxide v0.4.4 [INFO] [stderr] Compiling rustc_version v0.4.0 [INFO] [stderr] Compiling heck v0.3.3 [INFO] [stderr] Checking embedded-hal v0.2.7 [INFO] [stderr] Checking bitflags v0.3.3 [INFO] [stderr] Compiling cc v1.0.72 [INFO] [stderr] Checking gimli v0.26.1 [INFO] [stderr] Checking dirs v1.0.5 [INFO] [stderr] Checking nix v0.14.1 [INFO] [stderr] Checking term v0.5.2 [INFO] [stderr] Compiling cast v0.2.7 [INFO] [stderr] Checking time v0.1.44 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking clap v2.34.0 [INFO] [stderr] Checking chrono v0.4.19 [INFO] [stderr] Checking quick-error v1.2.3 [INFO] [stderr] Checking humantime v1.3.0 [INFO] [stderr] Checking object v0.27.1 [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/chrono-0.4.19/src/format/parse.rs:491:21 [INFO] [stdout] | [INFO] [stdout] 491 | Err(INVALID)?; [INFO] [stdout] | ^^^ cannot infer type of the type parameter `T` declared on the enum `Result` [INFO] [stdout] | [INFO] [stdout] help: consider specifying the generic arguments [INFO] [stdout] | [INFO] [stdout] 491 | Err::(INVALID)?; [INFO] [stdout] | +++++++++++++++++++++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling backtrace v0.3.64 [INFO] [stderr] Checking spidev v0.3.0 [INFO] [stdout] error: aborting due to 1 previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0282`. [INFO] [stdout] [INFO] [stderr] error: could not compile `chrono` (lib) due to 2 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "d28e89e52a25c147b0422f7e556851e213fe431655b768f4e42a9b2be3a126b7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d28e89e52a25c147b0422f7e556851e213fe431655b768f4e42a9b2be3a126b7", kill_on_drop: false }` [INFO] [stdout] d28e89e52a25c147b0422f7e556851e213fe431655b768f4e42a9b2be3a126b7