[INFO] fetching crate circus_simulation 0.0.1... [INFO] checking circus_simulation-0.0.1 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] extracting crate circus_simulation 0.0.1 into /workspace/builds/worker-4-tc1/source [INFO] validating manifest of crates.io crate circus_simulation 0.0.1 on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate circus_simulation 0.0.1 [INFO] finished tweaking crates.io crate circus_simulation 0.0.1 [INFO] tweaked toml for crates.io crate circus_simulation 0.0.1 written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] crate crates.io crate circus_simulation 0.0.1 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded tracing-core v0.1.18 [INFO] [stderr] Downloaded redox_syscall v0.2.9 [INFO] [stderr] Downloaded lock_api v0.4.4 [INFO] [stderr] Downloaded parking_lot_core v0.8.3 [INFO] [stderr] Downloaded parking_lot v0.11.1 [INFO] [stderr] Downloaded proc-macro2 v1.0.28 [INFO] [stderr] Downloaded serde_json v1.0.66 [INFO] [stderr] Downloaded serde v1.0.127 [INFO] [stderr] Downloaded syn v1.0.74 [INFO] [stderr] Downloaded libc v0.2.98 [INFO] [stderr] Downloaded tracing-subscriber v0.2.19 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] fb3dcdf6ba41945fd148d7350a3f7bae9477042f21ecd9e3e76d340eb0db9f5d [INFO] running `Command { std: "docker" "start" "-a" "fb3dcdf6ba41945fd148d7350a3f7bae9477042f21ecd9e3e76d340eb0db9f5d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "fb3dcdf6ba41945fd148d7350a3f7bae9477042f21ecd9e3e76d340eb0db9f5d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fb3dcdf6ba41945fd148d7350a3f7bae9477042f21ecd9e3e76d340eb0db9f5d", kill_on_drop: false }` [INFO] [stdout] fb3dcdf6ba41945fd148d7350a3f7bae9477042f21ecd9e3e76d340eb0db9f5d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] c48a7230e9aceb6afba8df420531c7d2f14bd7b0c76ebb34d0c6285ba51086bd [INFO] running `Command { std: "docker" "start" "-a" "c48a7230e9aceb6afba8df420531c7d2f14bd7b0c76ebb34d0c6285ba51086bd", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.98 [INFO] [stderr] Compiling proc-macro2 v1.0.28 [INFO] [stderr] Compiling unicode-xid v0.2.2 [INFO] [stderr] Compiling syn v1.0.74 [INFO] [stderr] Compiling serde v1.0.127 [INFO] [stderr] Compiling ryu v1.0.5 [INFO] [stderr] Checking smallvec v1.6.1 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Checking regex-syntax v0.6.25 [INFO] [stderr] Checking instant v0.1.10 [INFO] [stderr] Checking once_cell v1.8.0 [INFO] [stderr] Checking pin-project-lite v0.2.7 [INFO] [stderr] Compiling serde_json v1.0.66 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Checking tracing-core v0.1.18 [INFO] [stderr] Compiling num-integer v0.1.44 [INFO] [stderr] Checking ppv-lite86 v0.2.10 [INFO] [stderr] Checking lock_api v0.4.4 [INFO] [stderr] Checking itoa v0.4.7 [INFO] [stderr] Checking thread_local v1.1.3 [INFO] [stderr] Checking sharded-slab v0.1.1 [INFO] [stderr] Checking tracing-log v0.1.2 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Checking getrandom v0.2.3 [INFO] [stderr] Checking parking_lot_core v0.8.3 [INFO] [stderr] Checking rand_core v0.6.3 [INFO] [stderr] Checking parking_lot v0.11.1 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking rand v0.8.4 [INFO] [stderr] Checking chrono v0.4.19 [INFO] [stderr] Checking regex-automata v0.1.10 [INFO] [stderr] Checking regex v1.5.4 [INFO] [stderr] Checking matchers v0.0.1 [INFO] [stderr] Checking tracing-serde v0.1.2 [INFO] [stderr] Compiling tracing-attributes v0.1.15 [INFO] [stderr] Checking tracing v0.1.26 [INFO] [stderr] Checking tracing-subscriber v0.2.19 [INFO] [stderr] Checking circus_simulation v0.0.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `BUGGIFIER_INSTANCE` is imported redundantly [INFO] [stdout] --> src/buggify.rs:127:9 [INFO] [stdout] | [INFO] [stdout] 127 | use crate::buggify::BUGGIFIER_INSTANCE; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] 128 | use crate::buggify::*; [INFO] [stdout] | ----------------- the item `BUGGIFIER_INSTANCE` is already imported here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Random` is imported redundantly [INFO] [stdout] --> src/buggify.rs:129:9 [INFO] [stdout] | [INFO] [stdout] 128 | use crate::buggify::*; [INFO] [stdout] | ----------------- the item `Random` is already imported here [INFO] [stdout] 129 | use crate::deterministic::random::Random; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.09s [INFO] running `Command { std: "docker" "inspect" "c48a7230e9aceb6afba8df420531c7d2f14bd7b0c76ebb34d0c6285ba51086bd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c48a7230e9aceb6afba8df420531c7d2f14bd7b0c76ebb34d0c6285ba51086bd", kill_on_drop: false }` [INFO] [stdout] c48a7230e9aceb6afba8df420531c7d2f14bd7b0c76ebb34d0c6285ba51086bd [INFO] checking circus_simulation-0.0.1 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] extracting crate circus_simulation 0.0.1 into /workspace/builds/worker-4-tc2/source [INFO] validating manifest of crates.io crate circus_simulation 0.0.1 on toolchain 3a4bc97f6385a3aa300a4fd689b44350e54fd676 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate circus_simulation 0.0.1 [INFO] finished tweaking crates.io crate circus_simulation 0.0.1 [INFO] tweaked toml for crates.io crate circus_simulation 0.0.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] crate crates.io crate circus_simulation 0.0.1 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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 74070f4ba016918462b727ea7dabe1bbb38874d1d7cd14b78a1a664f4c981e6c [INFO] running `Command { std: "docker" "start" "-a" "74070f4ba016918462b727ea7dabe1bbb38874d1d7cd14b78a1a664f4c981e6c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "74070f4ba016918462b727ea7dabe1bbb38874d1d7cd14b78a1a664f4c981e6c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "74070f4ba016918462b727ea7dabe1bbb38874d1d7cd14b78a1a664f4c981e6c", kill_on_drop: false }` [INFO] [stdout] 74070f4ba016918462b727ea7dabe1bbb38874d1d7cd14b78a1a664f4c981e6c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 4728bb713734e7610865477a46081e3fbc7a5dd61fd99e9c27043e1848a3abf1 [INFO] running `Command { std: "docker" "start" "-a" "4728bb713734e7610865477a46081e3fbc7a5dd61fd99e9c27043e1848a3abf1", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.98 [INFO] [stderr] Compiling proc-macro2 v1.0.28 [INFO] [stderr] Compiling unicode-xid v0.2.2 [INFO] [stderr] Compiling syn v1.0.74 [INFO] [stderr] Compiling serde v1.0.127 [INFO] [stderr] Checking smallvec v1.6.1 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Checking regex-syntax v0.6.25 [INFO] [stderr] Compiling ryu v1.0.5 [INFO] [stderr] Checking instant v0.1.10 [INFO] [stderr] Checking ppv-lite86 v0.2.10 [INFO] [stderr] Compiling serde_json v1.0.66 [INFO] [stderr] Checking pin-project-lite v0.2.7 [INFO] [stderr] Checking once_cell v1.8.0 [INFO] [stderr] Checking tracing-core v0.1.18 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling num-integer v0.1.44 [INFO] [stderr] Checking lock_api v0.4.4 [INFO] [stderr] Checking itoa v0.4.7 [INFO] [stderr] Checking thread_local v1.1.3 [INFO] [stderr] Checking sharded-slab v0.1.1 [INFO] [stderr] Checking ansi_term v0.12.1 [INFO] [stderr] Checking tracing-log v0.1.2 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Checking getrandom v0.2.3 [INFO] [stderr] Checking parking_lot_core v0.8.3 [INFO] [stderr] Checking rand_core v0.6.3 [INFO] [stderr] Checking parking_lot v0.11.1 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking chrono v0.4.19 [INFO] [stderr] Checking rand v0.8.4 [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] Checking regex-automata v0.1.10 [INFO] [stderr] Checking regex v1.5.4 [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" "4728bb713734e7610865477a46081e3fbc7a5dd61fd99e9c27043e1848a3abf1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4728bb713734e7610865477a46081e3fbc7a5dd61fd99e9c27043e1848a3abf1", kill_on_drop: false }` [INFO] [stdout] 4728bb713734e7610865477a46081e3fbc7a5dd61fd99e9c27043e1848a3abf1