[INFO] fetching crate fn_graph 0.9.0... [INFO] checking fn_graph-0.9.0 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] extracting crate fn_graph 0.9.0 into /workspace/builds/worker-7-tc1/source [INFO] validating manifest of crates.io crate fn_graph 0.9.0 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] removed /workspace/builds/worker-7-tc1/source/.cargo/config.toml [INFO] started tweaking crates.io crate fn_graph 0.9.0 [INFO] removed 0 missing examples [INFO] finished tweaking crates.io crate fn_graph 0.9.0 [INFO] tweaked toml for crates.io crate fn_graph 0.9.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml [INFO] crate crates.io crate fn_graph 0.9.0 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded daggy v0.8.0 [INFO] [stderr] Downloaded rt_ref v0.2.0 [INFO] [stderr] Downloaded interruptible v0.0.3 [INFO] [stderr] Downloaded tynm v0.1.9 [INFO] [stderr] Downloaded resman v0.17.0 [INFO] [stderr] Downloaded fn_meta v0.7.3 [INFO] [stderr] Downloaded rt_map v0.5.2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] db569546fa6ea157534c6e53cc8aa96b9410704eea81f7017f5fb421564557ed [INFO] running `Command { std: "docker" "start" "-a" "db569546fa6ea157534c6e53cc8aa96b9410704eea81f7017f5fb421564557ed", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "db569546fa6ea157534c6e53cc8aa96b9410704eea81f7017f5fb421564557ed", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "db569546fa6ea157534c6e53cc8aa96b9410704eea81f7017f5fb421564557ed", kill_on_drop: false }` [INFO] [stdout] db569546fa6ea157534c6e53cc8aa96b9410704eea81f7017f5fb421564557ed [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 18a278165a30e69dd0df4c016e2754e71b18a43af7f7dfb9738dbdd262c9f95a [INFO] running `Command { std: "docker" "start" "-a" "18a278165a30e69dd0df4c016e2754e71b18a43af7f7dfb9738dbdd262c9f95a", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.70 [INFO] [stderr] Compiling futures-core v0.3.29 [INFO] [stderr] Checking memchr v2.6.4 [INFO] [stderr] Compiling futures-channel v0.3.29 [INFO] [stderr] Compiling futures-task v0.3.29 [INFO] [stderr] Checking futures-sink v0.3.29 [INFO] [stderr] Compiling slab v0.4.9 [INFO] [stderr] Compiling futures-util v0.3.29 [INFO] [stderr] Checking futures-io v0.3.29 [INFO] [stderr] Checking indexmap v2.1.0 [INFO] [stderr] Compiling fn_meta v0.7.3 [INFO] [stderr] Checking minimal-lexical v0.2.1 [INFO] [stderr] Checking fixedbitset v0.4.2 [INFO] [stderr] Checking smallvec v1.11.2 [INFO] [stderr] Compiling resman v0.17.0 [INFO] [stderr] Checking rt_ref v0.2.0 [INFO] [stderr] Checking downcast-rs v1.2.0 [INFO] [stderr] Checking petgraph v0.6.4 [INFO] [stderr] Checking nom v7.1.3 [INFO] [stderr] Checking rt_map v0.5.2 [INFO] [stderr] Compiling quote v1.0.33 [INFO] [stderr] Compiling syn v2.0.39 [INFO] [stderr] Checking daggy v0.8.0 [INFO] [stderr] Checking tynm v0.1.9 [INFO] [stderr] Compiling futures-macro v0.3.29 [INFO] [stderr] Compiling tokio-macros v2.2.0 [INFO] [stderr] Checking tokio v1.34.0 [INFO] [stderr] Checking futures-executor v0.3.29 [INFO] [stderr] Checking futures v0.3.29 [INFO] [stderr] Checking fn_graph v0.9.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `Drop` is imported redundantly [INFO] [stdout] --> src/fn_ref.rs:1:23 [INFO] [stdout] | [INFO] [stdout] 1 | use std::ops::{Deref, Drop}; [INFO] [stdout] | ^^^^ [INFO] [stdout] --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Drop` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Drop` is imported redundantly [INFO] [stdout] --> src/fn_ref.rs:1:23 [INFO] [stdout] | [INFO] [stdout] 1 | use std::ops::{Deref, Drop}; [INFO] [stdout] | ^^^^ [INFO] [stdout] --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `Drop` is already defined here [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/data_access/r.rs:10:24 [INFO] [stdout] | [INFO] [stdout] 10 | pub struct R<'read, T>(&'read T); [INFO] [stdout] | - ^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this struct [INFO] [stdout] | [INFO] [stdout] = note: `R` has a derived impl for the trait `Debug`, but this is 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] 10 | pub struct R<'read, T>(()); [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/data_access/w.rs:10:25 [INFO] [stdout] | [INFO] [stdout] 10 | pub struct W<'write, T>(&'write T); [INFO] [stdout] | - ^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this struct [INFO] [stdout] | [INFO] [stdout] = note: `W` has a derived impl for the trait `Debug`, but this is 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] 10 | pub struct W<'write, T>(()); [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/data_access/r.rs:10:24 [INFO] [stdout] | [INFO] [stdout] 10 | pub struct R<'read, T>(&'read T); [INFO] [stdout] | - ^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this struct [INFO] [stdout] | [INFO] [stdout] = note: `R` has a derived impl for the trait `Debug`, but this is 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] 10 | pub struct R<'read, T>(()); [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/data_access/w.rs:10:25 [INFO] [stdout] | [INFO] [stdout] 10 | pub struct W<'write, T>(&'write T); [INFO] [stdout] | - ^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this struct [INFO] [stdout] | [INFO] [stdout] = note: `W` has a derived impl for the trait `Debug`, but this is 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] 10 | pub struct W<'write, T>(()); [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.33s [INFO] running `Command { std: "docker" "inspect" "18a278165a30e69dd0df4c016e2754e71b18a43af7f7dfb9738dbdd262c9f95a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "18a278165a30e69dd0df4c016e2754e71b18a43af7f7dfb9738dbdd262c9f95a", kill_on_drop: false }` [INFO] [stdout] 18a278165a30e69dd0df4c016e2754e71b18a43af7f7dfb9738dbdd262c9f95a [INFO] checking fn_graph-0.9.0 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] extracting crate fn_graph 0.9.0 into /workspace/builds/worker-7-tc2/source [INFO] validating manifest of crates.io crate fn_graph 0.9.0 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] removed /workspace/builds/worker-7-tc2/source/.cargo/config.toml [INFO] started tweaking crates.io crate fn_graph 0.9.0 [INFO] removed 0 missing examples [INFO] finished tweaking crates.io crate fn_graph 0.9.0 [INFO] tweaked toml for crates.io crate fn_graph 0.9.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml [INFO] crate crates.io crate fn_graph 0.9.0 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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] f7fbc3fa8aa95e34b82f6c3c61c7f8648dd655f21ba7fad0c71cccde4d2361c3 [INFO] running `Command { std: "docker" "start" "-a" "f7fbc3fa8aa95e34b82f6c3c61c7f8648dd655f21ba7fad0c71cccde4d2361c3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "f7fbc3fa8aa95e34b82f6c3c61c7f8648dd655f21ba7fad0c71cccde4d2361c3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f7fbc3fa8aa95e34b82f6c3c61c7f8648dd655f21ba7fad0c71cccde4d2361c3", kill_on_drop: false }` [INFO] [stdout] f7fbc3fa8aa95e34b82f6c3c61c7f8648dd655f21ba7fad0c71cccde4d2361c3 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] d78a08f49e86b1e9593943d08f376150ca84bd14c8fd527344422e13dc2cf879 [INFO] running `Command { std: "docker" "start" "-a" "d78a08f49e86b1e9593943d08f376150ca84bd14c8fd527344422e13dc2cf879", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.70 [INFO] [stderr] Compiling futures-core v0.3.29 [INFO] [stderr] Checking memchr v2.6.4 [INFO] [stderr] Compiling futures-channel v0.3.29 [INFO] [stderr] Compiling futures-task v0.3.29 [INFO] [stderr] Checking futures-sink v0.3.29 [INFO] [stderr] Compiling slab v0.4.9 [INFO] [stderr] Compiling futures-util v0.3.29 [INFO] [stderr] Checking futures-io v0.3.29 [INFO] [stderr] Checking indexmap v2.1.0 [INFO] [stderr] Checking fixedbitset v0.4.2 [INFO] [stderr] Compiling fn_meta v0.7.3 [INFO] [stderr] Checking smallvec v1.11.2 [INFO] [stderr] Checking minimal-lexical v0.2.1 [INFO] [stderr] Compiling resman v0.17.0 [INFO] [stderr] Checking rt_ref v0.2.0 [INFO] [stderr] Checking downcast-rs v1.2.0 [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/rt_ref-0.2.0/src/cell.rs:9:54 [INFO] [stdout] | [INFO] [stdout] 9 | ($borrow_wanted:expr, $borrow_existing:expr) => {{ [INFO] [stdout] | ______________________________________________________^ [INFO] [stdout] 10 | | panic!( [INFO] [stdout] 11 | | "Expected to borrow `{type_name}` {borrow_wanted}, but it was already borrowed{borrow_existing}.", [INFO] [stdout] 12 | | type_name = ::std::any::type_name::(), [INFO] [stdout] ... | [INFO] [stdout] 15 | | ) [INFO] [stdout] 16 | | }}; [INFO] [stdout] | |_____^ cannot infer type [INFO] [stdout] ... [INFO] [stdout] 50 | borrow_panic!("immutably", " mutably"); [INFO] [stdout] | -------------------------------------- in this macro invocation [INFO] [stdout] | [INFO] [stdout] = note: this error originates in the macro `borrow_panic` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking nom v7.1.3 [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 `rt_ref` (lib) due to 2 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "d78a08f49e86b1e9593943d08f376150ca84bd14c8fd527344422e13dc2cf879", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d78a08f49e86b1e9593943d08f376150ca84bd14c8fd527344422e13dc2cf879", kill_on_drop: false }` [INFO] [stdout] d78a08f49e86b1e9593943d08f376150ca84bd14c8fd527344422e13dc2cf879