[INFO] cloning repository https://github.com/max-block/tutorial__mini-redis [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/max-block/tutorial__mini-redis" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmax-block%2Ftutorial__mini-redis", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmax-block%2Ftutorial__mini-redis'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 1264b77cc5790282660cd488173793e8d5d5b75d [INFO] checking max-block/tutorial__mini-redis against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmax-block%2Ftutorial__mini-redis" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/max-block/tutorial__mini-redis 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/max-block/tutorial__mini-redis [INFO] finished tweaking git repo https://github.com/max-block/tutorial__mini-redis [INFO] tweaked toml for git repo https://github.com/max-block/tutorial__mini-redis written to /workspace/builds/worker-1-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/max-block/tutorial__mini-redis 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] f9bed78418e62fe679305fd84565546e0d25af55990171cbcbdf09711c8aecee [INFO] running `Command { std: "docker" "start" "-a" "f9bed78418e62fe679305fd84565546e0d25af55990171cbcbdf09711c8aecee", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "f9bed78418e62fe679305fd84565546e0d25af55990171cbcbdf09711c8aecee", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f9bed78418e62fe679305fd84565546e0d25af55990171cbcbdf09711c8aecee", kill_on_drop: false }` [INFO] [stdout] f9bed78418e62fe679305fd84565546e0d25af55990171cbcbdf09711c8aecee [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 70ce00125f179ef6f055b3b1cc64765867b4f56c1f6fd65501928e9f16c32ed7 [INFO] running `Command { std: "docker" "start" "-a" "70ce00125f179ef6f055b3b1cc64765867b4f56c1f6fd65501928e9f16c32ed7", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.39 [INFO] [stderr] Compiling unicode-ident v1.0.0 [INFO] [stderr] Compiling syn v1.0.96 [INFO] [stderr] Compiling libc v0.2.126 [INFO] [stderr] Compiling num-traits v0.2.15 [INFO] [stderr] Compiling lock_api v0.4.7 [INFO] [stderr] Checking smallvec v1.8.0 [INFO] [stderr] Compiling serde v1.0.137 [INFO] [stderr] Compiling num-integer v0.1.45 [INFO] [stderr] Compiling futures-core v0.3.21 [INFO] [stderr] Checking tracing-core v0.1.26 [INFO] [stderr] Checking once_cell v1.12.0 [INFO] [stderr] Checking regex-syntax v0.6.26 [INFO] [stderr] Compiling unicode-segmentation v1.9.0 [INFO] [stderr] Compiling serde_json v1.0.81 [INFO] [stderr] Checking bytes v1.1.0 [INFO] [stderr] Checking ryu v1.0.10 [INFO] [stderr] Checking itoa v1.0.2 [INFO] [stderr] Checking thread_local v1.1.4 [INFO] [stderr] Checking sharded-slab v0.1.4 [INFO] [stderr] Checking tracing-log v0.1.3 [INFO] [stderr] Compiling heck v0.3.3 [INFO] [stderr] Compiling quote v1.0.18 [INFO] [stderr] Checking parking_lot_core v0.9.3 [INFO] [stderr] Checking num_cpus v1.13.1 [INFO] [stderr] Checking socket2 v0.4.4 [INFO] [stderr] Checking signal-hook-registry v1.4.0 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking mio v0.8.3 [INFO] [stderr] Checking atoi v0.3.3 [INFO] [stderr] Checking clap v2.34.0 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.4 [INFO] [stderr] Checking chrono v0.4.19 [INFO] [stderr] Checking parking_lot v0.12.1 [INFO] [stderr] Checking regex-automata v0.1.10 [INFO] [stderr] Checking regex v1.5.6 [INFO] [stderr] Checking matchers v0.0.1 [INFO] [stderr] Checking tracing-serde v0.1.3 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Compiling tracing-attributes v0.1.21 [INFO] [stderr] Compiling tokio-macros v1.7.0 [INFO] [stderr] Compiling pin-project-internal v1.0.10 [INFO] [stderr] Compiling structopt-derive v0.4.18 [INFO] [stderr] Compiling async-stream-impl v0.3.3 [INFO] [stderr] Checking async-stream v0.3.3 [INFO] [stderr] Checking tokio v1.18.2 [INFO] [stderr] Checking pin-project v1.0.10 [INFO] [stderr] Checking tracing v0.1.34 [INFO] [stderr] Checking tracing-futures v0.2.5 [INFO] [stderr] Checking tracing-subscriber v0.2.25 [INFO] [stderr] Checking structopt v0.3.26 [INFO] [stderr] Checking tokio-stream v0.1.8 [INFO] [stderr] Checking mini-redis v0.4.1 [INFO] [stderr] Checking mini-redis-tmp v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused imports: `AsyncReadExt`, `AsyncWriteExt` [INFO] [stdout] --> src/bin/echo_server_copy.rs:2:16 [INFO] [stdout] | [INFO] [stdout] 2 | io::{self, AsyncReadExt, AsyncWriteExt}, [INFO] [stdout] | ^^^^^^^^^^^^ ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `AsyncReadExt`, `AsyncWriteExt` [INFO] [stdout] --> src/bin/echo_server_copy.rs:2:16 [INFO] [stdout] | [INFO] [stdout] 2 | io::{self, AsyncReadExt, AsyncWriteExt}, [INFO] [stdout] | ^^^^^^^^^^^^ ^^^^^^^^^^^^^ [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 20.17s [INFO] running `Command { std: "docker" "inspect" "70ce00125f179ef6f055b3b1cc64765867b4f56c1f6fd65501928e9f16c32ed7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "70ce00125f179ef6f055b3b1cc64765867b4f56c1f6fd65501928e9f16c32ed7", kill_on_drop: false }` [INFO] [stdout] 70ce00125f179ef6f055b3b1cc64765867b4f56c1f6fd65501928e9f16c32ed7 [INFO] checking max-block/tutorial__mini-redis against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmax-block%2Ftutorial__mini-redis" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/max-block/tutorial__mini-redis 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] started tweaking git repo https://github.com/max-block/tutorial__mini-redis [INFO] finished tweaking git repo https://github.com/max-block/tutorial__mini-redis [INFO] tweaked toml for git repo https://github.com/max-block/tutorial__mini-redis written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/max-block/tutorial__mini-redis 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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 7ca7ccc6ffe4359093649c24ee251dfbbc528d172863ae779c783bac567c04a4 [INFO] running `Command { std: "docker" "start" "-a" "7ca7ccc6ffe4359093649c24ee251dfbbc528d172863ae779c783bac567c04a4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "7ca7ccc6ffe4359093649c24ee251dfbbc528d172863ae779c783bac567c04a4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7ca7ccc6ffe4359093649c24ee251dfbbc528d172863ae779c783bac567c04a4", kill_on_drop: false }` [INFO] [stdout] 7ca7ccc6ffe4359093649c24ee251dfbbc528d172863ae779c783bac567c04a4 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 06854f40a97de3adcdfc0aefc68fa4d039f59c1bbba206935232abb9e2d327c8 [INFO] running `Command { std: "docker" "start" "-a" "06854f40a97de3adcdfc0aefc68fa4d039f59c1bbba206935232abb9e2d327c8", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.39 [INFO] [stderr] Compiling unicode-ident v1.0.0 [INFO] [stderr] Compiling syn v1.0.96 [INFO] [stderr] Compiling libc v0.2.126 [INFO] [stderr] Checking smallvec v1.8.0 [INFO] [stderr] Compiling serde v1.0.137 [INFO] [stderr] Checking regex-syntax v0.6.26 [INFO] [stderr] Checking once_cell v1.12.0 [INFO] [stderr] Compiling num-traits v0.2.15 [INFO] [stderr] Checking tracing-core v0.1.26 [INFO] [stderr] Compiling lock_api v0.4.7 [INFO] [stderr] Compiling num-integer v0.1.45 [INFO] [stderr] Compiling futures-core v0.3.21 [INFO] [stderr] Compiling unicode-segmentation v1.9.0 [INFO] [stderr] Compiling serde_json v1.0.81 [INFO] [stderr] Checking ryu v1.0.10 [INFO] [stderr] Checking itoa v1.0.2 [INFO] [stderr] Checking bytes v1.1.0 [INFO] [stderr] Checking thread_local v1.1.4 [INFO] [stderr] Checking sharded-slab v0.1.4 [INFO] [stderr] Compiling heck v0.3.3 [INFO] [stderr] Checking tracing-log v0.1.3 [INFO] [stderr] Compiling quote v1.0.18 [INFO] [stderr] Checking parking_lot_core v0.9.3 [INFO] [stderr] Checking socket2 v0.4.4 [INFO] [stderr] Checking num_cpus v1.13.1 [INFO] [stderr] Checking signal-hook-registry v1.4.0 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking mio v0.8.3 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.4 [INFO] [stderr] Checking clap v2.34.0 [INFO] [stderr] Checking parking_lot v0.12.1 [INFO] [stderr] Checking atoi v0.3.3 [INFO] [stderr] Checking regex-automata v0.1.10 [INFO] [stderr] Checking regex v1.5.6 [INFO] [stderr] Checking chrono v0.4.19 [INFO] [stderr] Checking matchers v0.0.1 [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] [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" "06854f40a97de3adcdfc0aefc68fa4d039f59c1bbba206935232abb9e2d327c8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "06854f40a97de3adcdfc0aefc68fa4d039f59c1bbba206935232abb9e2d327c8", kill_on_drop: false }` [INFO] [stdout] 06854f40a97de3adcdfc0aefc68fa4d039f59c1bbba206935232abb9e2d327c8