[INFO] fetching crate fbas_analyzer 0.7.3... [INFO] checking fbas_analyzer-0.7.3 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] extracting crate fbas_analyzer 0.7.3 into /workspace/builds/worker-6-tc1/source [INFO] validating manifest of crates.io crate fbas_analyzer 0.7.3 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 crates.io crate fbas_analyzer 0.7.3 [INFO] finished tweaking crates.io crate fbas_analyzer 0.7.3 [INFO] tweaked toml for crates.io crate fbas_analyzer 0.7.3 written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] crate crates.io crate fbas_analyzer 0.7.3 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 structopt v0.2.18 [INFO] [stderr] Downloaded block-padding v0.2.1 [INFO] [stderr] Downloaded serde_with_macros v1.5.1 [INFO] [stderr] Downloaded structopt-derive v0.2.18 [INFO] [stderr] Downloaded keccak v0.1.0 [INFO] [stderr] Downloaded serde_with v1.12.0 [INFO] [stderr] Downloaded rustversion v1.0.6 [INFO] [stderr] Downloaded darling v0.13.2 [INFO] [stderr] Downloaded termtree v0.2.4 [INFO] [stderr] Downloaded assert_cmd v2.0.4 [INFO] [stderr] Downloaded pkg-config v0.3.25 [INFO] [stderr] Downloaded cast v0.2.7 [INFO] [stderr] Downloaded ignore v0.4.18 [INFO] [stderr] Downloaded semver v1.0.7 [INFO] [stderr] Downloaded criterion v0.3.5 [INFO] [stderr] Downloaded pathfinding v2.2.3 [INFO] [stderr] Downloaded gimli v0.26.1 [INFO] [stderr] Downloaded itertools v0.10.3 [INFO] [stderr] Downloaded object v0.27.1 [INFO] [stderr] Downloaded backtrace v0.3.64 [INFO] [stderr] Downloaded syn v1.0.90 [INFO] [stderr] Downloaded sha3 v0.9.1 [INFO] [stderr] Downloaded rustc-demangle v0.1.21 [INFO] [stderr] Downloaded darling_core v0.13.2 [INFO] [stderr] Downloaded quote v1.0.17 [INFO] [stderr] Downloaded crossbeam-channel v0.5.4 [INFO] [stderr] Downloaded crossbeam-epoch v0.9.8 [INFO] [stderr] Downloaded serde_derive v1.0.136 [INFO] [stderr] Downloaded criterion-plot v0.4.4 [INFO] [stderr] Downloaded plotters-backend v0.3.2 [INFO] [stderr] Downloaded plotters-svg v0.3.1 [INFO] [stderr] Downloaded fixedbitset v0.4.1 [INFO] [stderr] Downloaded difflib v0.4.0 [INFO] [stderr] Downloaded float-cmp v0.9.0 [INFO] [stderr] Downloaded normalize-line-endings v0.3.0 [INFO] [stderr] Downloaded predicates-core v1.0.3 [INFO] [stderr] Downloaded predicates v2.1.1 [INFO] [stderr] Downloaded clap-verbosity-flag v0.2.0 [INFO] [stderr] Downloaded exitfailure v0.5.1 [INFO] [stderr] Downloaded addr2line v0.17.0 [INFO] [stderr] Downloaded globset v0.4.8 [INFO] [stderr] Downloaded thread_local v1.1.4 [INFO] [stderr] Downloaded globwalk v0.3.1 [INFO] [stderr] Downloaded quicli v0.4.0 [INFO] [stderr] Downloaded predicates-tree v1.0.5 [INFO] [stderr] Downloaded pub-iterator-type v0.1.1 [INFO] [stderr] Downloaded par-map v0.1.4 [INFO] [stderr] Downloaded darling_macro v0.13.2 [INFO] [stderr] Downloaded plotters v0.3.1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] dbbf8ea109fb811f3434ef83bcc1f2503e6735f9677e46c853ca7a64b480c67f [INFO] running `Command { std: "docker" "start" "-a" "dbbf8ea109fb811f3434ef83bcc1f2503e6735f9677e46c853ca7a64b480c67f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "dbbf8ea109fb811f3434ef83bcc1f2503e6735f9677e46c853ca7a64b480c67f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "dbbf8ea109fb811f3434ef83bcc1f2503e6735f9677e46c853ca7a64b480c67f", kill_on_drop: false }` [INFO] [stdout] dbbf8ea109fb811f3434ef83bcc1f2503e6735f9677e46c853ca7a64b480c67f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 57741dbeaf74f8fc760dfcac9af131eb1ae971c9c56e51cd0a6a85cb713832fa [INFO] running `Command { std: "docker" "start" "-a" "57741dbeaf74f8fc760dfcac9af131eb1ae971c9c56e51cd0a6a85cb713832fa", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.36 [INFO] [stderr] Compiling syn v1.0.90 [INFO] [stderr] Compiling libc v0.2.121 [INFO] [stderr] Compiling serde_derive v1.0.136 [INFO] [stderr] Compiling serde v1.0.136 [INFO] [stderr] Compiling crossbeam-utils v0.8.8 [INFO] [stderr] Checking aho-corasick v0.7.18 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling log v0.4.16 [INFO] [stderr] Checking regex-automata v0.1.10 [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Compiling miniz_oxide v0.4.4 [INFO] [stderr] Compiling crossbeam-epoch v0.9.8 [INFO] [stderr] Compiling cc v1.0.73 [INFO] [stderr] Compiling quote v1.0.17 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Checking regex v1.5.5 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking num_cpus v1.13.1 [INFO] [stderr] Compiling syn v0.15.44 [INFO] [stderr] Compiling typenum v1.15.0 [INFO] [stderr] Checking gimli v0.26.1 [INFO] [stderr] Compiling quote v0.6.13 [INFO] [stderr] Compiling generic-array v0.14.5 [INFO] [stderr] Compiling backtrace v0.3.64 [INFO] [stderr] Checking itertools v0.10.3 [INFO] [stderr] Checking object v0.27.1 [INFO] [stderr] Compiling unicode-segmentation v1.9.0 [INFO] [stderr] Compiling strsim v0.10.0 [INFO] [stderr] Compiling semver v1.0.7 [INFO] [stderr] Checking rustc-demangle v0.1.21 [INFO] [stderr] Compiling fnv v1.0.7 [INFO] [stderr] Compiling ident_case v1.0.1 [INFO] [stderr] Compiling heck v0.3.3 [INFO] [stderr] Checking clap v2.34.0 [INFO] [stderr] Checking crossbeam-deque v0.8.1 [INFO] [stderr] Checking crossbeam-channel v0.5.4 [INFO] [stderr] Compiling rayon v1.5.1 [INFO] [stderr] Checking quick-error v1.2.3 [INFO] [stderr] Checking once_cell v1.10.0 [INFO] [stderr] Checking ryu v1.0.9 [INFO] [stderr] Compiling serde_json v1.0.79 [INFO] [stderr] Checking thread_local v1.1.4 [INFO] [stderr] Checking rayon-core v1.9.1 [INFO] [stderr] Checking humantime v1.3.0 [INFO] [stderr] Checking addr2line v0.17.0 [INFO] [stderr] Compiling indexmap v1.8.1 [INFO] [stderr] Checking termcolor v1.1.3 [INFO] [stderr] Checking itoa v1.0.1 [INFO] [stderr] Compiling rustversion v1.0.6 [INFO] [stderr] Checking env_logger v0.5.13 [INFO] [stderr] Compiling rustc_version v0.4.0 [INFO] [stderr] Checking block-padding v0.2.1 [INFO] [stderr] Checking itoa v0.4.8 [INFO] [stderr] Checking block-buffer v0.9.0 [INFO] [stderr] Checking futures-cpupool v0.1.8 [INFO] [stderr] Checking digest v0.9.0 [INFO] [stderr] Compiling cast v0.2.7 [INFO] [stderr] Checking integer-sqrt v0.1.5 [INFO] [stderr] Checking fixedbitset v0.4.1 [INFO] [stderr] Checking bit-vec v0.6.3 [INFO] [stderr] Checking pub-iterator-type v0.1.1 [INFO] [stderr] Checking keccak v0.1.0 [INFO] [stderr] Checking pathfinding v2.2.3 [INFO] [stderr] Checking bit-set v0.5.2 [INFO] [stderr] Checking par-map v0.1.4 [INFO] [stderr] Checking plotters-backend v0.3.2 [INFO] [stderr] Checking sha3 v0.9.1 [INFO] [stderr] Checking predicates-core v1.0.3 [INFO] [stderr] Compiling doc-comment v0.3.3 [INFO] [stderr] Checking plotters-svg v0.3.1 [INFO] [stderr] Checking float-cmp v0.9.0 [INFO] [stderr] Compiling synstructure v0.12.6 [INFO] [stderr] Compiling darling_core v0.13.2 [INFO] [stderr] Checking termtree v0.2.4 [INFO] [stderr] Checking normalize-line-endings v0.3.0 [INFO] [stderr] Compiling structopt-derive v0.2.18 [INFO] [stderr] Checking difflib v0.4.0 [INFO] [stderr] Checking half v1.8.2 [INFO] [stderr] Checking predicates-tree v1.0.5 [INFO] [stderr] Checking criterion-plot v0.4.4 [INFO] [stderr] Checking predicates v2.1.1 [INFO] [stderr] Checking plotters v0.3.1 [INFO] [stderr] Checking wait-timeout v0.2.0 [INFO] [stderr] Checking oorandom v11.1.3 [INFO] [stderr] Checking structopt v0.2.18 [INFO] [stderr] Compiling failure_derive v0.1.8 [INFO] [stderr] Compiling darling_macro v0.13.2 [INFO] [stderr] Checking failure v0.1.8 [INFO] [stderr] Compiling darling v0.13.2 [INFO] [stderr] Compiling serde_with_macros v1.5.1 [INFO] [stderr] Checking exitfailure v0.5.1 [INFO] [stderr] Checking clap-verbosity-flag v0.2.0 [INFO] [stderr] Checking bstr v0.2.17 [INFO] [stderr] Checking serde_with v1.12.0 [INFO] [stderr] Checking serde_cbor v0.11.2 [INFO] [stderr] Checking globset v0.4.8 [INFO] [stderr] Checking csv v1.1.6 [INFO] [stderr] Checking assert_cmd v2.0.4 [INFO] [stderr] Checking ignore v0.4.18 [INFO] [stderr] Checking tinytemplate v1.2.1 [INFO] [stderr] Checking criterion v0.3.5 [INFO] [stderr] Checking globwalk v0.3.1 [INFO] [stderr] Checking quicli v0.4.0 [INFO] [stderr] Checking fbas_analyzer v0.7.3 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `FromIterator` is imported redundantly [INFO] [stdout] --> src/analysis/splitting_sets.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::iter::FromIterator; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `FromIterator` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::collections::HashSet` [INFO] [stdout] --> src/core_types/mod.rs:7:9 [INFO] [stdout] | [INFO] [stdout] 7 | pub use std::collections::HashSet; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `VecDeque` is imported redundantly [INFO] [stdout] --> src/core_types/mod.rs:8:9 [INFO] [stdout] | [INFO] [stdout] 1 | use super::*; [INFO] [stdout] | -------- the item `VecDeque` is already imported here [INFO] [stdout] ... [INFO] [stdout] 8 | pub use std::collections::VecDeque; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `set_helpers::*` [INFO] [stdout] --> src/core_types/mod.rs:27:9 [INFO] [stdout] | [INFO] [stdout] 27 | pub use set_helpers::*; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `TryInto` is imported redundantly [INFO] [stdout] --> src/io/core_types.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::convert::TryInto; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `TryInto` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `TryInto` is imported redundantly [INFO] [stdout] --> src/io/results.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use std::convert::TryInto; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `TryInto` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `FromIterator` is imported redundantly [INFO] [stdout] --> src/analysis/splitting_sets.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::iter::FromIterator; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `FromIterator` is already defined here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::collections::HashSet` [INFO] [stdout] --> src/core_types/mod.rs:7:9 [INFO] [stdout] | [INFO] [stdout] 7 | pub use std::collections::HashSet; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `VecDeque` is imported redundantly [INFO] [stdout] --> src/core_types/mod.rs:8:9 [INFO] [stdout] | [INFO] [stdout] 1 | use super::*; [INFO] [stdout] | -------- the item `VecDeque` is already imported here [INFO] [stdout] ... [INFO] [stdout] 8 | pub use std::collections::VecDeque; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `set_helpers::*` [INFO] [stdout] --> src/core_types/mod.rs:27:9 [INFO] [stdout] | [INFO] [stdout] 27 | pub use set_helpers::*; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `TryInto` is imported redundantly [INFO] [stdout] --> src/io/core_types.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::convert::TryInto; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `TryInto` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `TryInto` is imported redundantly [INFO] [stdout] --> src/io/results.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use std::convert::TryInto; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:148:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `TryInto` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 31.11s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: criterion v0.3.5 [INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 3` [INFO] running `Command { std: "docker" "inspect" "57741dbeaf74f8fc760dfcac9af131eb1ae971c9c56e51cd0a6a85cb713832fa", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "57741dbeaf74f8fc760dfcac9af131eb1ae971c9c56e51cd0a6a85cb713832fa", kill_on_drop: false }` [INFO] [stdout] 57741dbeaf74f8fc760dfcac9af131eb1ae971c9c56e51cd0a6a85cb713832fa