[INFO] cloning repository https://github.com/dustlang/chalk [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dustlang/chalk" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdustlang%2Fchalk", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdustlang%2Fchalk'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] fbfa00e831a12eae33f1dd56b705655ded3bc42b [INFO] checking dustlang/chalk against master#e4106065bf1bb515935d5d024e8d9c86454e2b22 for pr-112160 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdustlang%2Fchalk" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/dustlang/chalk on toolchain e4106065bf1bb515935d5d024e8d9c86454e2b22 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e4106065bf1bb515935d5d024e8d9c86454e2b22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/dustlang/chalk [INFO] finished tweaking git repo https://github.com/dustlang/chalk [INFO] tweaked toml for git repo https://github.com/dustlang/chalk written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/dustlang/chalk 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" "+e4106065bf1bb515935d5d024e8d9c86454e2b22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded tracing-tree v0.1.5 [INFO] [stderr] Downloaded string_cache v0.8.0 [INFO] [stderr] Downloaded tracing-attributes v0.1.10 [INFO] [stderr] Downloaded tracing-core v0.1.14 [INFO] [stderr] Downloaded lalrpop-util v0.19.0 [INFO] [stderr] Downloaded salsa v0.16.0 [INFO] [stderr] Downloaded lalrpop v0.19.0 [INFO] [stderr] Downloaded salsa-macros v0.16.0 [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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+e4106065bf1bb515935d5d024e8d9c86454e2b22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] d2d1b9d48c5ef5ca2664267f0469cc3c56299fcce92dcad28ff81da58f6e8c80 [INFO] running `Command { std: "docker" "start" "-a" "d2d1b9d48c5ef5ca2664267f0469cc3c56299fcce92dcad28ff81da58f6e8c80", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "d2d1b9d48c5ef5ca2664267f0469cc3c56299fcce92dcad28ff81da58f6e8c80", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d2d1b9d48c5ef5ca2664267f0469cc3c56299fcce92dcad28ff81da58f6e8c80", kill_on_drop: false }` [INFO] [stdout] d2d1b9d48c5ef5ca2664267f0469cc3c56299fcce92dcad28ff81da58f6e8c80 [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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+e4106065bf1bb515935d5d024e8d9c86454e2b22" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 91cbc7b8de24ac11d9dad86ffb4a4216fc7c63b4def98c83820399a5ac328f21 [INFO] running `Command { std: "docker" "start" "-a" "91cbc7b8de24ac11d9dad86ffb4a4216fc7c63b4def98c83820399a5ac328f21", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.19 [INFO] [stderr] Compiling syn v1.0.38 [INFO] [stderr] Compiling serde_derive v1.0.115 [INFO] [stderr] Compiling byteorder v1.3.4 [INFO] [stderr] Compiling memchr v2.3.3 [INFO] [stderr] Compiling serde v1.0.115 [INFO] [stderr] Compiling log v0.4.11 [INFO] [stderr] Compiling hashbrown v0.8.2 [INFO] [stderr] Compiling indexmap v1.5.1 [INFO] [stderr] Checking regex-syntax v0.6.18 [INFO] [stderr] Compiling typenum v1.12.0 [INFO] [stderr] Checking thread_local v1.0.1 [INFO] [stderr] Checking aho-corasick v0.7.13 [INFO] [stderr] Compiling libc v0.2.86 [INFO] [stderr] Compiling num-traits v0.2.12 [INFO] [stderr] Compiling quote v1.0.7 [INFO] [stderr] Compiling generic-array v0.12.3 [INFO] [stderr] Checking tracing-core v0.1.14 [INFO] [stderr] Compiling num-integer v0.1.43 [INFO] [stderr] Checking smallvec v1.4.2 [INFO] [stderr] Compiling byte-tools v0.3.1 [INFO] [stderr] Compiling block-padding v0.1.5 [INFO] [stderr] Compiling regex v1.3.9 [INFO] [stderr] Compiling dirs v1.0.5 [INFO] [stderr] Compiling siphasher v0.3.3 [INFO] [stderr] Compiling serde_json v1.0.57 [INFO] [stderr] Compiling phf_shared v0.8.0 [INFO] [stderr] Compiling term v0.5.2 [INFO] [stderr] Compiling block-buffer v0.7.3 [INFO] [stderr] Compiling digest v0.8.1 [INFO] [stderr] Checking time v0.1.43 [INFO] [stderr] Compiling either v1.6.0 [INFO] [stderr] Checking regex-automata v0.1.9 [INFO] [stderr] Compiling precomputed-hash v0.1.1 [INFO] [stderr] Compiling opaque-debug v0.2.3 [INFO] [stderr] Compiling fake-simd v0.1.2 [INFO] [stderr] Compiling strsim v0.9.3 [INFO] [stderr] Compiling fixedbitset v0.2.0 [INFO] [stderr] Compiling bit-vec v0.6.2 [INFO] [stderr] Checking itoa v0.4.6 [INFO] [stderr] Compiling new_debug_unreachable v1.0.4 [INFO] [stderr] Compiling bit-set v0.5.2 [INFO] [stderr] Compiling petgraph v0.5.1 [INFO] [stderr] Compiling sha2 v0.8.2 [INFO] [stderr] Checking matchers v0.0.1 [INFO] [stderr] Checking chrono v0.4.13 [INFO] [stderr] Compiling ascii-canvas v2.0.0 [INFO] [stderr] Compiling lalrpop-util v0.19.0 [INFO] [stderr] Compiling itertools v0.9.0 [INFO] [stderr] Compiling ena v0.14.0 [INFO] [stderr] Compiling atty v0.2.14 [INFO] [stderr] Checking tracing-log v0.1.1 [INFO] [stderr] Checking sharded-slab v0.0.9 [INFO] [stderr] Compiling diff v0.1.12 [INFO] [stderr] Checking itertools v0.10.0 [INFO] [stderr] Compiling crossbeam-utils v0.8.3 [INFO] [stderr] Checking instant v0.1.6 [INFO] [stderr] Checking scopeguard v1.1.0 [INFO] [stderr] Checking lock_api v0.4.1 [INFO] [stderr] Checking parking_lot_core v0.8.0 [INFO] [stderr] Checking oorandom v11.1.2 [INFO] [stderr] Checking unicode-xid v0.2.1 [INFO] [stderr] Checking nix v0.19.1 [INFO] [stderr] Checking parking_lot v0.11.0 [INFO] [stderr] Checking fs2 v0.4.3 [INFO] [stderr] Checking unicode-segmentation v1.6.0 [INFO] [stderr] Checking utf8parse v0.2.0 [INFO] [stderr] Checking difference v2.0.0 [INFO] [stderr] Checking pretty_assertions v0.6.1 [INFO] [stderr] Compiling synstructure v0.12.4 [INFO] [stderr] Compiling tracing-attributes v0.1.10 [INFO] [stderr] Compiling salsa-macros v0.16.0 [INFO] [stderr] Compiling chalk-derive v0.61.0-dev.0 (/opt/rustwide/workdir/chalk-derive) [INFO] [stderr] Checking chalk-ir v0.61.0-dev.0 (/opt/rustwide/workdir/chalk-ir) [INFO] [stderr] Checking tracing v0.1.19 [INFO] [stderr] Checking rustyline v7.1.0 [INFO] [stderr] Checking salsa v0.16.0 [INFO] [stderr] Checking tracing-serde v0.1.1 [INFO] [stderr] Checking string_cache v0.8.0 [INFO] [stderr] Checking docopt v1.1.0 [INFO] [stderr] Checking tracing-subscriber v0.2.11 [INFO] [stderr] Compiling lalrpop v0.19.0 [INFO] [stderr] Checking tracing-tree v0.1.5 [INFO] [stderr] Checking chalk-solve v0.61.0-dev.0 (/opt/rustwide/workdir/chalk-solve) [INFO] [stdout] warning: field `max_universe` is never read [INFO] [stdout] --> chalk-solve/src/infer/canonicalize.rs:67:5 [INFO] [stdout] | [INFO] [stdout] 58 | pub struct Canonicalized { [INFO] [stdout] | ------------- field in this struct [INFO] [stdout] ... [INFO] [stdout] 67 | max_universe: UniverseIndex, [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Canonicalized` 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] [INFO] [stdout] [INFO] [stdout] warning: using `.borrow()` on a double reference, which returns `&LoggingRustIrDatabase` instead of borrowing the inner type [INFO] [stdout] --> chalk-solve/src/logging_db.rs:369:16 [INFO] [stdout] | [INFO] [stdout] 369 | self.db [INFO] [stdout] | ________________^ [INFO] [stdout] 370 | | .borrow() [INFO] [stdout] | |_____________________^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(suspicious_double_ref_op)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: using `.borrow()` on a double reference, which returns `&LoggingRustIrDatabase` instead of borrowing the inner type [INFO] [stdout] --> chalk-solve/src/logging_db.rs:376:16 [INFO] [stdout] | [INFO] [stdout] 376 | self.db.borrow().unification_database().adt_variance(adt_id) [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: using `.borrow()` on a double reference, which returns `&LoggingRustIrDatabase` instead of borrowing the inner type [INFO] [stdout] --> chalk-solve/src/logging_db.rs:407:16 [INFO] [stdout] | [INFO] [stdout] 407 | self.db.borrow().generator_datum(generator_id) [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: using `.borrow()` on a double reference, which returns `&LoggingRustIrDatabase` instead of borrowing the inner type [INFO] [stdout] --> chalk-solve/src/logging_db.rs:415:16 [INFO] [stdout] | [INFO] [stdout] 415 | self.db.borrow().generator_witness_datum(generator_id) [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking chalk-engine v0.61.0-dev.0 (/opt/rustwide/workdir/chalk-engine) [INFO] [stderr] Checking chalk-recursive v0.61.0-dev.0 (/opt/rustwide/workdir/chalk-recursive) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> chalk-engine/src/logic.rs:1315:9 [INFO] [stdout] | [INFO] [stdout] 1315 | mut canonical_strand: &mut CanonicalStrand, [INFO] [stdout] | ----^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling chalk-parse v0.61.0-dev.0 (/opt/rustwide/workdir/chalk-parse) [INFO] [stderr] Checking chalk-integration v0.61.0-dev.0 (/opt/rustwide/workdir/chalk-integration) [INFO] [stderr] Checking chalk v0.61.0-dev.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> chalk-engine/src/logic.rs:1315:9 [INFO] [stdout] | [INFO] [stdout] 1315 | mut canonical_strand: &mut CanonicalStrand, [INFO] [stdout] | ----^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `max_universe` is never read [INFO] [stdout] --> chalk-solve/src/infer/canonicalize.rs:67:5 [INFO] [stdout] | [INFO] [stdout] 58 | pub struct Canonicalized { [INFO] [stdout] | ------------- field in this struct [INFO] [stdout] ... [INFO] [stdout] 67 | max_universe: UniverseIndex, [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Canonicalized` 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] [INFO] [stdout] [INFO] [stdout] warning: using `.borrow()` on a double reference, which returns `&LoggingRustIrDatabase` instead of borrowing the inner type [INFO] [stdout] --> chalk-solve/src/logging_db.rs:369:16 [INFO] [stdout] | [INFO] [stdout] 369 | self.db [INFO] [stdout] | ________________^ [INFO] [stdout] 370 | | .borrow() [INFO] [stdout] | |_____________________^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(suspicious_double_ref_op)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: using `.borrow()` on a double reference, which returns `&LoggingRustIrDatabase` instead of borrowing the inner type [INFO] [stdout] --> chalk-solve/src/logging_db.rs:376:16 [INFO] [stdout] | [INFO] [stdout] 376 | self.db.borrow().unification_database().adt_variance(adt_id) [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: using `.borrow()` on a double reference, which returns `&LoggingRustIrDatabase` instead of borrowing the inner type [INFO] [stdout] --> chalk-solve/src/logging_db.rs:407:16 [INFO] [stdout] | [INFO] [stdout] 407 | self.db.borrow().generator_datum(generator_id) [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: using `.borrow()` on a double reference, which returns `&LoggingRustIrDatabase` instead of borrowing the inner type [INFO] [stdout] --> chalk-solve/src/logging_db.rs:415:16 [INFO] [stdout] | [INFO] [stdout] 415 | self.db.borrow().generator_witness_datum(generator_id) [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1m 06s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: lalrpop v0.19.0 [INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 6` [INFO] running `Command { std: "docker" "inspect" "91cbc7b8de24ac11d9dad86ffb4a4216fc7c63b4def98c83820399a5ac328f21", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "91cbc7b8de24ac11d9dad86ffb4a4216fc7c63b4def98c83820399a5ac328f21", kill_on_drop: false }` [INFO] [stdout] 91cbc7b8de24ac11d9dad86ffb4a4216fc7c63b4def98c83820399a5ac328f21