[INFO] fetching crate xc2par 0.0.2... [INFO] checking xc2par-0.0.2 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] extracting crate xc2par 0.0.2 into /workspace/builds/worker-5-tc1/source [INFO] validating manifest of crates.io crate xc2par 0.0.2 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 xc2par 0.0.2 [INFO] finished tweaking crates.io crate xc2par 0.0.2 [INFO] tweaked toml for crates.io crate xc2par 0.0.2 written to /workspace/builds/worker-5-tc1/source/Cargo.toml [INFO] crate crates.io crate xc2par 0.0.2 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 serde_json v1.0.9 [INFO] [stderr] Downloaded yosys-netlist-json v0.0.3 [INFO] [stderr] Downloaded serde_derive_internals v0.19.0 [INFO] [stderr] Downloaded dtoa v0.4.2 [INFO] [stderr] Downloaded serde_derive v1.0.27 [INFO] [stderr] Downloaded num-traits v0.2.0 [INFO] [stderr] Downloaded atty v0.2.10 [INFO] [stderr] Downloaded cfg-if v0.1.3 [INFO] [stderr] Downloaded termion v1.5.1 [INFO] [stderr] Downloaded rand v0.3.22 [INFO] [stderr] Downloaded clap v2.31.2 [INFO] [stderr] Downloaded libc v0.2.36 [INFO] [stderr] Downloaded chrono v0.4.2 [INFO] [stderr] Downloaded winapi v0.3.4 [INFO] [stderr] Downloaded log v0.4.1 [INFO] [stderr] Downloaded redox_syscall v0.1.38 [INFO] [stderr] Downloaded term v0.5.1 [INFO] [stderr] Downloaded lazy_static v1.0.0 [INFO] [stderr] Downloaded xc2bit v0.0.4 [INFO] [stderr] Downloaded num-integer v0.1.36 [INFO] [stderr] Downloaded isatty v0.1.8 [INFO] [stderr] Downloaded byteorder v1.2.3 [INFO] [stderr] Downloaded slog-term v2.4.0 [INFO] [stderr] Downloaded jedec v0.0.3 [INFO] [stderr] Downloaded bitflags v1.0.1 [INFO] [stderr] Downloaded time v0.1.40 [INFO] [stderr] Downloaded thread_local v0.3.5 [INFO] [stderr] Downloaded slog-scope v4.0.1 [INFO] [stderr] Downloaded serde v1.0.27 [INFO] [stderr] Downloaded slog v2.2.3 [INFO] [stderr] Downloaded slog-stdlog v3.0.2 [INFO] [stderr] Downloaded bittwiddler v0.0.2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 9ace1ca3499158f065c101ebdee6f170cabd1caa20b1c77ab5128b8af2579d83 [INFO] running `Command { std: "docker" "start" "-a" "9ace1ca3499158f065c101ebdee6f170cabd1caa20b1c77ab5128b8af2579d83", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "9ace1ca3499158f065c101ebdee6f170cabd1caa20b1c77ab5128b8af2579d83", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9ace1ca3499158f065c101ebdee6f170cabd1caa20b1c77ab5128b8af2579d83", kill_on_drop: false }` [INFO] [stdout] 9ace1ca3499158f065c101ebdee6f170cabd1caa20b1c77ab5128b8af2579d83 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 3aa969d6928a2aabe632d8a76483fc1669c52505c97ba53280bdbfc6d9df5484 [INFO] running `Command { std: "docker" "start" "-a" "3aa969d6928a2aabe632d8a76483fc1669c52505c97ba53280bdbfc6d9df5484", kill_on_drop: false }` [INFO] [stderr] Checking libc v0.2.36 [INFO] [stderr] Checking num-traits v0.2.0 [INFO] [stderr] Compiling unicode-xid v0.0.4 [INFO] [stderr] Compiling quote v0.3.15 [INFO] [stderr] Checking slog v2.2.3 [INFO] [stderr] Checking dtoa v0.4.2 [INFO] [stderr] Checking void v1.0.2 [INFO] [stderr] Checking itoa v0.3.4 [INFO] [stderr] Checking serde v1.0.27 [INFO] [stderr] Checking cfg-if v0.1.3 [INFO] [stderr] Checking crossbeam v0.2.12 [INFO] [stderr] Checking unicode-width v0.1.5 [INFO] [stderr] Checking lazy_static v0.2.11 [INFO] [stderr] Compiling proc-macro2 v0.3.8 [INFO] [stderr] Checking lazy_static v1.0.0 [INFO] [stderr] Checking byteorder v1.2.3 [INFO] [stderr] Checking log v0.4.1 [INFO] [stderr] Checking unreachable v1.0.0 [INFO] [stderr] Compiling xc2bit v0.0.4 [INFO] [stderr] Checking textwrap v0.9.0 [INFO] [stderr] Compiling xc2par v0.0.2 (/opt/rustwide/workdir) [INFO] [stderr] Compiling synom v0.11.3 [INFO] [stderr] Checking thread_local v0.3.5 [INFO] [stderr] Checking bitflags v1.0.1 [INFO] [stderr] Checking log v0.3.9 [INFO] [stderr] Checking term v0.5.1 [INFO] [stderr] Checking jedec v0.0.3 [INFO] [stderr] Checking strsim v0.7.0 [INFO] [stderr] Checking vec_map v0.8.1 [INFO] [stderr] Compiling syn v0.11.11 [INFO] [stderr] Compiling quote v0.5.2 [INFO] [stderr] Checking num-traits v0.1.43 [INFO] [stderr] Checking num-integer v0.1.36 [INFO] [stderr] Compiling syn v0.13.11 [INFO] [stderr] Checking slog-scope v4.0.1 [INFO] [stderr] Checking time v0.1.40 [INFO] [stderr] Checking rand v0.4.2 [INFO] [stderr] Checking isatty v0.1.8 [INFO] [stderr] Checking atty v0.2.10 [INFO] [stderr] Checking slog-stdlog v3.0.2 [INFO] [stderr] Checking clap v2.31.2 [INFO] [stderr] Checking chrono v0.4.2 [INFO] [stderr] Compiling serde_derive_internals v0.19.0 [INFO] [stderr] Checking rand v0.3.22 [INFO] [stderr] Compiling serde_derive v1.0.27 [INFO] [stderr] Checking slog-term v2.4.0 [INFO] [stderr] Checking serde_json v1.0.9 [INFO] [stderr] Compiling bittwiddler v0.0.2 [INFO] [stderr] Checking yosys-netlist-json v0.0.3 [INFO] [stdout] warning: the item `slog` is imported redundantly [INFO] [stdout] --> src/frontend.rs:30:5 [INFO] [stdout] | [INFO] [stdout] 30 | use slog; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] ::: src/lib.rs:32:1 [INFO] [stdout] | [INFO] [stdout] 32 | extern crate slog; [INFO] [stdout] | ------------------ the item `slog` is already imported here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `slog_stdlog` is imported redundantly [INFO] [stdout] --> src/frontend.rs:32:5 [INFO] [stdout] | [INFO] [stdout] 32 | use slog_stdlog; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] ::: src/lib.rs:33:1 [INFO] [stdout] | [INFO] [stdout] 33 | extern crate slog_stdlog; [INFO] [stdout] | ------------------------- the item `slog_stdlog` is already imported here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `yosys_netlist_json` is imported redundantly [INFO] [stdout] --> src/frontend.rs:34:5 [INFO] [stdout] | [INFO] [stdout] 34 | use yosys_netlist_json; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] ::: src/lib.rs:35:1 [INFO] [stdout] | [INFO] [stdout] 35 | extern crate yosys_netlist_json; [INFO] [stdout] | -------------------------------- the item `yosys_netlist_json` is already imported here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary trailing semicolon [INFO] [stdout] --> src/engine.rs:723:6 [INFO] [stdout] | [INFO] [stdout] 723 | }; [INFO] [stdout] | ^ help: remove this semicolon [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(redundant_semicolons)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary trailing semicolon [INFO] [stdout] --> src/engine.rs:919:6 [INFO] [stdout] | [INFO] [stdout] 919 | }; [INFO] [stdout] | ^ help: remove this semicolon [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `slog` is imported redundantly [INFO] [stdout] --> src/frontend.rs:30:5 [INFO] [stdout] | [INFO] [stdout] 30 | use slog; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] ::: src/lib.rs:32:1 [INFO] [stdout] | [INFO] [stdout] 32 | extern crate slog; [INFO] [stdout] | ------------------ the item `slog` is already imported here [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `slog_stdlog` is imported redundantly [INFO] [stdout] --> src/frontend.rs:32:5 [INFO] [stdout] | [INFO] [stdout] 32 | use slog_stdlog; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] ::: src/lib.rs:33:1 [INFO] [stdout] | [INFO] [stdout] 33 | extern crate slog_stdlog; [INFO] [stdout] | ------------------------- the item `slog_stdlog` is already imported here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `std` is imported redundantly [INFO] [stdout] --> src/frontend.rs:1091:9 [INFO] [stdout] | [INFO] [stdout] 1091 | use std; [INFO] [stdout] | ^^^ the item `std` is already defined by prelude [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `slog` is imported redundantly [INFO] [stdout] --> src/objpool.rs:30:5 [INFO] [stdout] | [INFO] [stdout] 30 | use slog; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] ::: src/lib.rs:32:1 [INFO] [stdout] | [INFO] [stdout] 32 | extern crate slog; [INFO] [stdout] | ------------------ the item `slog` is already imported here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary trailing semicolon [INFO] [stdout] --> src/engine.rs:723:6 [INFO] [stdout] | [INFO] [stdout] 723 | }; [INFO] [stdout] | ^ help: remove this semicolon [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(redundant_semicolons)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary trailing semicolon [INFO] [stdout] --> src/engine.rs:919:6 [INFO] [stdout] | [INFO] [stdout] 919 | }; [INFO] [stdout] | ^ help: remove this semicolon [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `std` is imported redundantly [INFO] [stdout] --> src/engine.rs:1543:9 [INFO] [stdout] | [INFO] [stdout] 1543 | use std; [INFO] [stdout] | ^^^ the item `std` is already defined by prelude [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `std` is imported redundantly [INFO] [stdout] --> src/netlist.rs:1387:9 [INFO] [stdout] | [INFO] [stdout] 1387 | use std; [INFO] [stdout] | ^^^ the item `std` is already defined by prelude [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `slog` is imported redundantly [INFO] [stdout] --> src/objpool.rs:30:5 [INFO] [stdout] | [INFO] [stdout] 30 | use slog; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] ::: src/lib.rs:32:1 [INFO] [stdout] | [INFO] [stdout] 32 | extern crate slog; [INFO] [stdout] | ------------------ the item `slog` is already imported here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&Vec` instead of cloning the inner type [INFO] [stdout] --> src/frontend.rs:494:63 [INFO] [stdout] | [INFO] [stdout] 494 | let conn_obj_copy = conn_obj.as_ref().unwrap().clone(); [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(suspicious_double_ref_op)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `run_one_reftest` is never used [INFO] [stdout] --> src/frontend.rs:1097:8 [INFO] [stdout] | [INFO] [stdout] 1097 | fn run_one_reftest(input_filename: &'static str) { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `run_one_reftest` is never used [INFO] [stdout] --> src/engine.rs:1549:8 [INFO] [stdout] | [INFO] [stdout] 1549 | fn run_one_reftest(input_filename: &'static str) { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `run_one_reftest` is never used [INFO] [stdout] --> src/netlist.rs:1393:8 [INFO] [stdout] | [INFO] [stdout] 1393 | fn run_one_reftest(input_filename: &'static str) { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&Vec` instead of cloning the inner type [INFO] [stdout] --> src/frontend.rs:494:63 [INFO] [stdout] | [INFO] [stdout] 494 | let conn_obj_copy = conn_obj.as_ref().unwrap().clone(); [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(suspicious_double_ref_op)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 12 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.13s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: syn v0.13.11 [INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 5` [INFO] running `Command { std: "docker" "inspect" "3aa969d6928a2aabe632d8a76483fc1669c52505c97ba53280bdbfc6d9df5484", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3aa969d6928a2aabe632d8a76483fc1669c52505c97ba53280bdbfc6d9df5484", kill_on_drop: false }` [INFO] [stdout] 3aa969d6928a2aabe632d8a76483fc1669c52505c97ba53280bdbfc6d9df5484