[INFO] fetching crate symbolics_calculus 0.1.5... [INFO] checking symbolics_calculus-0.1.5 against try#8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8 for pr-82565 [INFO] extracting crate symbolics_calculus 0.1.5 into /workspace/builds/worker-9/source [INFO] validating manifest of crates.io crate symbolics_calculus 0.1.5 on toolchain 8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate symbolics_calculus 0.1.5 [INFO] finished tweaking crates.io crate symbolics_calculus 0.1.5 [INFO] tweaked toml for crates.io crate symbolics_calculus 0.1.5 written to /workspace/builds/worker-9/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded symbolics_core v0.1.5 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 2e88fb83cc62cc08de5311337e0404237cbcef6f797267586bc5f5fd8a88208f [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "2e88fb83cc62cc08de5311337e0404237cbcef6f797267586bc5f5fd8a88208f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "2e88fb83cc62cc08de5311337e0404237cbcef6f797267586bc5f5fd8a88208f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2e88fb83cc62cc08de5311337e0404237cbcef6f797267586bc5f5fd8a88208f", kill_on_drop: false }` [INFO] [stdout] 2e88fb83cc62cc08de5311337e0404237cbcef6f797267586bc5f5fd8a88208f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 66480a3184ee7cb289d80509240ad974ab6a4c57e6357d349fa33f194ded94f8 [INFO] running `Command { std: "docker" "start" "-a" "66480a3184ee7cb289d80509240ad974ab6a4c57e6357d349fa33f194ded94f8", kill_on_drop: false }` [INFO] [stderr] Checking symbolics_core v0.1.5 [INFO] [stderr] Checking symbolics_calculus v0.1.5 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused imports: `apply`, `s` [INFO] [stdout] --> src/lib.rs:3:22 [INFO] [stdout] | [INFO] [stdout] 3 | use symbolics_core::{s, apply}; [INFO] [stdout] | ^ ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0283]: type annotations needed [INFO] [stdout] --> src/lib.rs:16:47 [INFO] [stdout] | [INFO] [stdout] 16 | Add(a, b) => a.clone().deriv1(wrt.as_ref()) + b.clone().deriv1(wrt.as_ref()), [INFO] [stdout] | ----^^^^^^-- [INFO] [stdout] | | | [INFO] [stdout] | | cannot infer type for type parameter `T` declared on the trait `AsRef` [INFO] [stdout] | this method call resolves to `&T` [INFO] [stdout] | [INFO] [stdout] = note: cannot satisfy `String: AsRef<_>` [INFO] [stdout] help: use the fully qualified path for the potential candidates [INFO] [stdout] | [INFO] [stdout] 16 | Add(a, b) => a.clone().deriv1(>::as_ref(wrt)) + b.clone().deriv1(wrt.as_ref()), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] 16 | Add(a, b) => a.clone().deriv1(>::as_ref(wrt)) + b.clone().deriv1(wrt.as_ref()), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] 16 | Add(a, b) => a.clone().deriv1(>::as_ref(wrt)) + b.clone().deriv1(wrt.as_ref()), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] 16 | Add(a, b) => a.clone().deriv1(>::as_ref(wrt)) + b.clone().deriv1(wrt.as_ref()), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0283`. [INFO] [stdout] [INFO] [stdout] error[E0283]: type annotations needed [INFO] [stdout] --> src/lib.rs:16:47 [INFO] [stdout] | [INFO] [stdout] 16 | Add(a, b) => a.clone().deriv1(wrt.as_ref()) + b.clone().deriv1(wrt.as_ref()), [INFO] [stdout] | ----^^^^^^-- [INFO] [stdout] | | | [INFO] [stdout] | | cannot infer type for type parameter `T` declared on the trait `AsRef` [INFO] [stdout] | this method call resolves to `&T` [INFO] [stdout] | [INFO] [stdout] = note: cannot satisfy `String: AsRef<_>` [INFO] [stdout] help: use the fully qualified path for the potential candidates [INFO] [stdout] | [INFO] [stdout] 16 | Add(a, b) => a.clone().deriv1(>::as_ref(wrt)) + b.clone().deriv1(wrt.as_ref()), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] 16 | Add(a, b) => a.clone().deriv1(>::as_ref(wrt)) + b.clone().deriv1(wrt.as_ref()), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] 16 | Add(a, b) => a.clone().deriv1(>::as_ref(wrt)) + b.clone().deriv1(wrt.as_ref()), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] 16 | Add(a, b) => a.clone().deriv1(>::as_ref(wrt)) + b.clone().deriv1(wrt.as_ref()), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `symbolics_calculus` [INFO] [stdout] error: aborting due to previous error; 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] [INFO] [stdout] For more information about this error, try `rustc --explain E0283`. [INFO] [stdout] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: build failed [INFO] running `Command { std: "docker" "inspect" "66480a3184ee7cb289d80509240ad974ab6a4c57e6357d349fa33f194ded94f8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "66480a3184ee7cb289d80509240ad974ab6a4c57e6357d349fa33f194ded94f8", kill_on_drop: false }` [INFO] [stdout] 66480a3184ee7cb289d80509240ad974ab6a4c57e6357d349fa33f194ded94f8