[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#158f00a1c5175648af6f6099b075f78d1d014a28 for pr-121251
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdustlang%2Fchalk" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dustlang/chalk on toolchain 158f00a1c5175648af6f6099b075f78d1d014a28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+158f00a1c5175648af6f6099b075f78d1d014a28" "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-4-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" "+158f00a1c5175648af6f6099b075f78d1d014a28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tracing-core v0.1.14
[INFO] [stderr]   Downloaded rustyline v7.1.0
[INFO] [stderr]   Downloaded lalrpop-util v0.19.0
[INFO] [stderr]   Downloaded oorandom v11.1.2
[INFO] [stderr]   Downloaded tracing-attributes v0.1.10
[INFO] [stderr]   Downloaded lalrpop v0.19.0
[INFO] [stderr]   Downloaded salsa v0.16.0
[INFO] [stderr]   Downloaded tracing-tree v0.1.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+158f00a1c5175648af6f6099b075f78d1d014a28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 87191dbf829c06cfa86754ca6a1c45884db1b4583500786ed6043311b4dee1aa
[INFO] running `Command { std: "docker" "start" "-a" "87191dbf829c06cfa86754ca6a1c45884db1b4583500786ed6043311b4dee1aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "87191dbf829c06cfa86754ca6a1c45884db1b4583500786ed6043311b4dee1aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "87191dbf829c06cfa86754ca6a1c45884db1b4583500786ed6043311b4dee1aa", kill_on_drop: false }`
[INFO] [stdout] 87191dbf829c06cfa86754ca6a1c45884db1b4583500786ed6043311b4dee1aa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+158f00a1c5175648af6f6099b075f78d1d014a28" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 090d124cdf7c1791c7465e32456a9b402cb3093092f556ea67b26a73bf7774c8
[INFO] running `Command { std: "docker" "start" "-a" "090d124cdf7c1791c7465e32456a9b402cb3093092f556ea67b26a73bf7774c8", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling syn v1.0.38
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling serde_derive v1.0.115
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking lazy_static v1.4.0
[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 cfg-if v0.1.10
[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 quote v1.0.7
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]     Checking tracing-core v0.1.14
[INFO] [stderr]    Compiling generic-array v0.12.3
[INFO] [stderr]    Compiling ryu v1.0.5
[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 dirs v1.0.5
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]    Compiling siphasher v0.3.3
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]    Compiling phf_shared v0.8.0
[INFO] [stderr]    Compiling block-buffer v0.7.3
[INFO] [stderr]    Compiling term v0.5.2
[INFO] [stderr]    Compiling digest v0.8.1
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]    Compiling precomputed-hash v0.1.1
[INFO] [stderr]    Compiling either v1.6.0
[INFO] [stderr]    Compiling fixedbitset v0.2.0
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]    Compiling bit-vec v0.6.2
[INFO] [stderr]    Compiling opaque-debug v0.2.3
[INFO] [stderr]    Compiling fake-simd v0.1.2
[INFO] [stderr]    Compiling new_debug_unreachable v1.0.4
[INFO] [stderr]    Compiling strsim v0.9.3
[INFO] [stderr]    Compiling bit-set v0.5.2
[INFO] [stderr]    Compiling sha2 v0.8.2
[INFO] [stderr]    Compiling petgraph v0.5.1
[INFO] [stderr]    Compiling itertools v0.9.0
[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 ena v0.14.0
[INFO] [stderr]     Checking tracing-log v0.1.1
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]     Checking sharded-slab v0.0.9
[INFO] [stderr]    Compiling diff v0.1.12
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking termcolor v1.1.0
[INFO] [stderr]     Checking rustc-hash v1.1.0
[INFO] [stderr]     Checking itertools v0.10.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.3
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking instant v0.1.6
[INFO] [stderr]    Compiling lalrpop-util v0.19.0
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]     Checking parking_lot_core v0.8.0
[INFO] [stderr]     Checking lock_api v0.4.1
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking oorandom v11.1.2
[INFO] [stderr]     Checking parking_lot v0.11.0
[INFO] [stderr]     Checking nix v0.19.1
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]     Checking utf8parse v0.2.0
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking difference v2.0.0
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]     Checking pretty_assertions v0.6.1
[INFO] [stderr]    Compiling chalk-derive v0.61.0-dev.0 (/opt/rustwide/workdir/chalk-derive)
[INFO] [stderr]    Compiling tracing-attributes v0.1.10
[INFO] [stderr]    Compiling salsa-macros v0.16.0
[INFO] [stderr]     Checking chalk-ir v0.61.0-dev.0 (/opt/rustwide/workdir/chalk-ir)
[INFO] [stderr]     Checking rustyline v7.1.0
[INFO] [stderr]     Checking tracing v0.1.19
[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<T: HasInterner> {
[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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking chalk-recursive v0.61.0-dev.0 (/opt/rustwide/workdir/chalk-recursive)
[INFO] [stderr]     Checking chalk-engine v0.61.0-dev.0 (/opt/rustwide/workdir/chalk-engine)
[INFO] [stdout] warning: trait `MergeWith` is never used
[INFO] [stdout]   --> chalk-recursive/src/recursive.rs:66:7
[INFO] [stdout]    |
[INFO] [stdout] 66 | trait MergeWith<T> {
[INFO] [stdout]    |       ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[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<I>,
[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: trait `MergeWith` is never used
[INFO] [stdout]   --> chalk-recursive/src/recursive.rs:66:7
[INFO] [stdout]    |
[INFO] [stdout] 66 | trait MergeWith<T> {
[INFO] [stdout]    |       ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[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<I>,
[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<T: HasInterner> {
[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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 49.19s
[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 1`
[INFO] running `Command { std: "docker" "inspect" "090d124cdf7c1791c7465e32456a9b402cb3093092f556ea67b26a73bf7774c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "090d124cdf7c1791c7465e32456a9b402cb3093092f556ea67b26a73bf7774c8", kill_on_drop: false }`
[INFO] [stdout] 090d124cdf7c1791c7465e32456a9b402cb3093092f556ea67b26a73bf7774c8
[INFO] checking dustlang/chalk against try#b4fc5dbf0bc33be331f9d893db5b3a794f29724a+rustflags=-Dexplicit_range -Dtrait_impl_range -Wrange_syntax -Wrange_bounds for pr-121251
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdustlang%2Fchalk" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dustlang/chalk on toolchain b4fc5dbf0bc33be331f9d893db5b3a794f29724a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b4fc5dbf0bc33be331f9d893db5b3a794f29724a" "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-4-tc2/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" "+b4fc5dbf0bc33be331f9d893db5b3a794f29724a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+b4fc5dbf0bc33be331f9d893db5b3a794f29724a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dd9000a2f1e358c53e9e995913b32795ae84edb7920a7d52e24bf58a4c139390
[INFO] running `Command { std: "docker" "start" "-a" "dd9000a2f1e358c53e9e995913b32795ae84edb7920a7d52e24bf58a4c139390", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dd9000a2f1e358c53e9e995913b32795ae84edb7920a7d52e24bf58a4c139390", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd9000a2f1e358c53e9e995913b32795ae84edb7920a7d52e24bf58a4c139390", kill_on_drop: false }`
[INFO] [stdout] dd9000a2f1e358c53e9e995913b32795ae84edb7920a7d52e24bf58a4c139390
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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 -Dexplicit_range -Dtrait_impl_range -Wrange_syntax -Wrange_bounds" "-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" "+b4fc5dbf0bc33be331f9d893db5b3a794f29724a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1a1899c8209f6c4d222d9d6cf998a97d2c49419ee368420366e06b6e329cba23
[INFO] running `Command { std: "docker" "start" "-a" "1a1899c8209f6c4d222d9d6cf998a97d2c49419ee368420366e06b6e329cba23", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling syn v1.0.38
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling serde_derive v1.0.115
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling serde v1.0.115
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling hashbrown v0.8.2
[INFO] [stderr]    Compiling indexmap v1.5.1
[INFO] [stderr]     Checking cfg-if v0.1.10
[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 quote v1.0.7
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking tracing-core v0.1.14
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling byte-tools v0.3.1
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking smallvec v1.4.2
[INFO] [stderr]    Compiling dirs v1.0.5
[INFO] [stderr]    Compiling generic-array v0.12.3
[INFO] [stderr]    Compiling block-padding v0.1.5
[INFO] [stderr]     Checking regex v1.3.9
[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]     Checking regex-automata v0.1.9
[INFO] [stderr]    Compiling digest v0.8.1
[INFO] [stderr]    Compiling block-buffer v0.7.3
[INFO] [stderr]    Compiling term v0.5.2
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]    Compiling strsim v0.9.3
[INFO] [stderr]    Compiling either v1.6.0
[INFO] [stderr]    Compiling precomputed-hash v0.1.1
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]    Compiling opaque-debug v0.2.3
[INFO] [stderr]    Compiling fake-simd v0.1.2
[INFO] [stderr]    Compiling new_debug_unreachable v1.0.4
[INFO] [stderr]    Compiling fixedbitset v0.2.0
[INFO] [stderr]    Compiling bit-vec v0.6.2
[INFO] [stderr]    Compiling sha2 v0.8.2
[INFO] [stderr]    Compiling petgraph v0.5.1
[INFO] [stderr]    Compiling bit-set v0.5.2
[INFO] [stderr]    Compiling ascii-canvas v2.0.0
[INFO] [stderr]     Checking chrono v0.4.13
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]     Checking matchers v0.0.1
[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]     Checking ansi_term v0.12.1
[INFO] [stderr]    Compiling diff v0.1.12
[INFO] [stderr]    Compiling lalrpop-util v0.19.0
[INFO] [stderr]     Checking termcolor v1.1.0
[INFO] [stderr]     Checking rustc-hash v1.1.0
[INFO] [stderr]     Checking itertools v0.10.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.3
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking instant v0.1.6
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]     Checking lock_api v0.4.1
[INFO] [stderr]     Checking parking_lot_core v0.8.0
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking parking_lot v0.11.0
[INFO] [stderr]     Checking oorandom v11.1.2
[INFO] [stderr]     Checking nix v0.19.1
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]     Checking utf8parse v0.2.0
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking difference v2.0.0
[INFO] [stderr]     Checking pretty_assertions v0.6.1
[INFO] [stderr]    Compiling tracing-attributes v0.1.10
[INFO] [stderr]    Compiling chalk-derive v0.61.0-dev.0 (/opt/rustwide/workdir/chalk-derive)
[INFO] [stderr]    Compiling salsa-macros v0.16.0
[INFO] [stderr]     Checking chalk-ir v0.61.0-dev.0 (/opt/rustwide/workdir/chalk-ir)
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]   --> chalk-ir/src/fold/in_place.rs:57:18
[INFO] [stdout]    |
[INFO] [stdout] 57 |         for i in 0..vec.len {
[INFO] [stdout]    |                  ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-W range-syntax`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> chalk-ir/src/fold/in_place.rs:125:18
[INFO] [stdout]     |
[INFO] [stdout] 125 |         for i in 0..self.map_in_progress {
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> chalk-ir/src/fold/in_place.rs:132:18
[INFO] [stdout]     |
[INFO] [stdout] 132 |         for i in (self.map_in_progress + 1)..self.len {
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `RangeFrom` range syntax
[INFO] [stdout]    --> chalk-ir/src/debug.rs:396:65
[INFO] [stdout]     |
[INFO] [stdout] 396 |         for (goal, index) in self.goals.iter(self.interner).zip(0..) {
[INFO] [stdout]     |                                                                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `RangeFrom` range syntax
[INFO] [stdout]    --> chalk-ir/src/debug.rs:654:31
[INFO] [stdout]     |
[INFO] [stdout] 654 |             Angle(&parameters[1..])
[INFO] [stdout]     |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]     --> chalk-ir/src/lib.rs:1115:18
[INFO] [stdout]      |
[INFO] [stdout] 1115 |                 (0..self.num_binders).map(|_| VariableKind::Lifetime),
[INFO] [stdout]      |                  ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]     --> chalk-ir/src/lib.rs:1126:18
[INFO] [stdout]      |
[INFO] [stdout] 1126 |                 (0..self.num_binders).map(|_| VariableKind::Lifetime),
[INFO] [stdout]      |                  ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `RangeFrom` range syntax
[INFO] [stdout]     --> chalk-ir/src/lib.rs:2699:33
[INFO] [stdout]      |
[INFO] [stdout] 2699 |         self.iter(interner).zip(0..).all(|(generic_arg, index)| {
[INFO] [stdout]      |                                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]   --> chalk-ir/src/fold/in_place.rs:57:18
[INFO] [stdout]    |
[INFO] [stdout] 57 |         for i in 0..vec.len {
[INFO] [stdout]    |                  ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-W range-syntax`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> chalk-ir/src/fold/in_place.rs:125:18
[INFO] [stdout]     |
[INFO] [stdout] 125 |         for i in 0..self.map_in_progress {
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> chalk-ir/src/fold/in_place.rs:132:18
[INFO] [stdout]     |
[INFO] [stdout] 132 |         for i in (self.map_in_progress + 1)..self.len {
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> chalk-ir/src/fold/in_place.rs:185:24
[INFO] [stdout]     |
[INFO] [stdout] 185 |         let to_fold = (0u8..5).map(|i| RecordDrop::new(i, &drops)).collect();
[INFO] [stdout]     |                        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> chalk-ir/src/fold/in_place.rs:196:24
[INFO] [stdout]     |
[INFO] [stdout] 196 |         let to_fold = (0u8..5).map(|i| RecordDrop::new(i, &drops)).collect();
[INFO] [stdout]     |                        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> chalk-ir/src/fold/in_place.rs:215:24
[INFO] [stdout]     |
[INFO] [stdout] 215 |         let to_fold = (0u8..5).map(|i| RecordDrop::new(i, &drops)).collect();
[INFO] [stdout]     |                        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `RangeFrom` range syntax
[INFO] [stdout]    --> chalk-ir/src/debug.rs:396:65
[INFO] [stdout]     |
[INFO] [stdout] 396 |         for (goal, index) in self.goals.iter(self.interner).zip(0..) {
[INFO] [stdout]     |                                                                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `RangeFrom` range syntax
[INFO] [stdout]    --> chalk-ir/src/debug.rs:654:31
[INFO] [stdout]     |
[INFO] [stdout] 654 |             Angle(&parameters[1..])
[INFO] [stdout]     |                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]     --> chalk-ir/src/lib.rs:1115:18
[INFO] [stdout]      |
[INFO] [stdout] 1115 |                 (0..self.num_binders).map(|_| VariableKind::Lifetime),
[INFO] [stdout]      |                  ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]     --> chalk-ir/src/lib.rs:1126:18
[INFO] [stdout]      |
[INFO] [stdout] 1126 |                 (0..self.num_binders).map(|_| VariableKind::Lifetime),
[INFO] [stdout]      |                  ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `RangeFrom` range syntax
[INFO] [stdout]     --> chalk-ir/src/lib.rs:2699:33
[INFO] [stdout]      |
[INFO] [stdout] 2699 |         self.iter(interner).zip(0..).all(|(generic_arg, index)| {
[INFO] [stdout]      |                                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking tracing v0.1.19
[INFO] [stderr]     Checking rustyline v7.1.0
[INFO] [stderr]     Checking salsa v0.16.0
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[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: usage of `RangeFrom` range syntax
[INFO] [stdout]    --> chalk-solve/src/clauses/builder.rs:148:22
[INFO] [stdout]     |
[INFO] [stdout] 148 |                 .zip(old_len..)
[INFO] [stdout]     |                      ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-W range-syntax`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `RangeFrom` range syntax
[INFO] [stdout]    --> chalk-solve/src/clauses/builder.rs:151:74
[INFO] [stdout]     |
[INFO] [stdout] 151 |         let value = binders.substitute(self.interner(), &self.parameters[old_len..]);
[INFO] [stdout]     |                                                                          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> chalk-solve/src/clauses/program_clauses.rs:637:30
[INFO] [stdout]     |
[INFO] [stdout] 637 |                     for i in 0..type_parameters.len() {
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> chalk-solve/src/clauses/program_clauses.rs:645:41
[INFO] [stdout]     |
[INFO] [stdout] 645 | ...                   .chain((0..i).map(|j| {
[INFO] [stdout]     |                               ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> chalk-solve/src/clauses/program_clauses.rs:684:26
[INFO] [stdout]     |
[INFO] [stdout] 684 |                 for i in 0..type_parameters.len() {
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> chalk-solve/src/clauses/program_clauses.rs:687:26
[INFO] [stdout]     |
[INFO] [stdout] 687 |                         (0..i)
[INFO] [stdout]     |                          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> chalk-solve/src/clauses.rs:683:22
[INFO] [stdout]     |
[INFO] [stdout] 683 |             for i in 0..type_parameters.len() {
[INFO] [stdout]     |                      ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> chalk-solve/src/clauses.rs:697:33
[INFO] [stdout]     |
[INFO] [stdout] 697 |                         .chain((0..i).map(|j| {
[INFO] [stdout]     |                                 ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `RangeFrom` range syntax
[INFO] [stdout]    --> chalk-solve/src/clauses.rs:774:63
[INFO] [stdout]     |
[INFO] [stdout] 774 |                     trait_ref.substitution.as_slice(interner)[1..]
[INFO] [stdout]     |                                                               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `RangeFrom` range syntax
[INFO] [stdout]    --> chalk-solve/src/clauses.rs:821:67
[INFO] [stdout]     |
[INFO] [stdout] 821 |                     projection_ty.substitution.as_slice(interner)[1..]
[INFO] [stdout]     |                                                                   ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `RangeFrom` range syntax
[INFO] [stdout]    --> chalk-solve/src/display/bounds.rs:112:55
[INFO] [stdout]     |
[INFO] [stdout] 112 |                 &self.substitution.as_slice(interner)[1..]
[INFO] [stdout]     |                                                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `RangeFrom` range syntax
[INFO] [stdout]    --> chalk-solve/src/display/bounds.rs:145:39
[INFO] [stdout]     |
[INFO] [stdout] 145 |                         &trait_params[1..],
[INFO] [stdout]     |                                       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `RangeFrom` range syntax
[INFO] [stdout]    --> chalk-solve/src/display/items.rs:274:56
[INFO] [stdout]     |
[INFO] [stdout] 274 |             &trait_ref.substitution.as_slice(interner)[1..],
[INFO] [stdout]     |                                                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `RangeFrom` range syntax
[INFO] [stdout]   --> chalk-solve/src/display/ty.rs:53:28
[INFO] [stdout]    |
[INFO] [stdout] 53 |                     params[1..].iter().map(|ty| ty.display(s)),
[INFO] [stdout]    |                            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `RangeFrom` range syntax
[INFO] [stdout]    --> chalk-solve/src/display/ty.rs:150:82
[INFO] [stdout]     |
[INFO] [stdout] 150 |             display_type_with_generics(s, assoc_ty_datum.trait_id, &trait_params[1..]),
[INFO] [stdout]     |                                                                                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> chalk-solve/src/display/ty.rs:182:18
[INFO] [stdout]     |
[INFO] [stdout] 182 |                 (0..self.num_binders)
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `RangeFrom` range syntax
[INFO] [stdout]    --> chalk-solve/src/display.rs:150:76
[INFO] [stdout]     |
[INFO] [stdout] 150 | ...                   &trait_ref.substitution.as_slice(interner)[1..],
[INFO] [stdout]     |                                                                  ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `RangeFrom` range syntax
[INFO] [stdout]    --> chalk-solve/src/display.rs:160:55
[INFO] [stdout]     |
[INFO] [stdout] 160 | ...                   &trait_params[1..],
[INFO] [stdout]     |                                     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]   --> chalk-solve/src/infer.rs:60:18
[INFO] [stdout]    |
[INFO] [stdout] 60 |         for _ in 1..num_universes {
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]     --> chalk-solve/src/wf.rs:1010:51
[INFO] [stdout]      |
[INFO] [stdout] 1010 |                 let uneq_field_ids: Vec<usize> = (0..source_fields.len())
[INFO] [stdout]      |                                                   ^^^^^^^^^^^^^^^^^^^^^^
[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<T: HasInterner> {
[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: 21 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking chalk-recursive v0.61.0-dev.0 (/opt/rustwide/workdir/chalk-recursive)
[INFO] [stderr]     Checking chalk-engine v0.61.0-dev.0 (/opt/rustwide/workdir/chalk-engine)
[INFO] [stdout] warning: usage of `RangeFrom` range syntax
[INFO] [stdout]   --> chalk-recursive/src/search_graph.rs:97:38
[INFO] [stdout]    |
[INFO] [stdout] 97 |         for node in self.nodes.drain(dfn.index..) {
[INFO] [stdout]    |                                      ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-W range-syntax`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `RangeFrom` range syntax
[INFO] [stdout]   --> chalk-recursive/src/stack.rs:73:22
[INFO] [stdout]    |
[INFO] [stdout] 73 |         self.entries[depth.depth..]
[INFO] [stdout]    |                      ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]     --> chalk-engine/src/logic.rs:1588:19
[INFO] [stdout]      |
[INFO] [stdout] 1588 |         for i in (0..floundered_subgoals.len()).rev() {
[INFO] [stdout]      |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: requested on the command line with `-W range-syntax`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> chalk-engine/src/lib.rs:318:18
[INFO] [stdout]     |
[INFO] [stdout] 318 |                   (range.start.value..range.end.value).into_iter().map(|i| Self { value: i })
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: chalk-engine/src/stack.rs:61:1
[INFO] [stdout]     |
[INFO] [stdout] 61  | / index_struct! {
[INFO] [stdout] 62  | |     /// The StackIndex identifies the position of a table's goal in the
[INFO] [stdout] 63  | |     /// stack of goals that are actively being processed. Note that once a
[INFO] [stdout] 64  | |     /// table is completely evaluated, it may be popped from the stack,
[INFO] [stdout] ...   |
[INFO] [stdout] 68  | |     }
[INFO] [stdout] 69  | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `index_struct` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> chalk-engine/src/stack.rs:109:9
[INFO] [stdout]     |
[INFO] [stdout] 109 |         depth..StackIndex::from(self.stack.len())
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> chalk-engine/src/lib.rs:318:18
[INFO] [stdout]     |
[INFO] [stdout] 318 |                   (range.start.value..range.end.value).into_iter().map(|i| Self { value: i })
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: chalk-engine/src/table.rs:50:1
[INFO] [stdout]     |
[INFO] [stdout] 50  | / index_struct! {
[INFO] [stdout] 51  | |     pub(crate) struct AnswerIndex {
[INFO] [stdout] 52  | |         value: usize,
[INFO] [stdout] 53  | |     }
[INFO] [stdout] 54  | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `index_struct` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: usage of `Range` range syntax
[INFO] [stdout]    --> chalk-engine/src/lib.rs:318:18
[INFO] [stdout]     |
[INFO] [stdout] 80  | / index_struct! {
[INFO] [stdout] 81  | |     pub struct TableIndex { // FIXME: pub b/c Fold
[INFO] [stdout] 82  | |         value: usize,
[INFO] [stdout] 83  | |     }
[INFO] [stdout] 84  | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout] ...
[INFO] [stdout] 318 |                   (range.start.value..range.end.value).into_iter().map(|i| Self { value: i })
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `index_struct` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `MergeWith` is never used
[INFO] [stdout]   --> chalk-recursive/src/recursive.rs:66:7
[INFO] [stdout]    |
[INFO] [stdout] 66 | trait MergeWith<T> {
[INFO] [stdout]    |       ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[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<I>,
[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] error: explicit usage of `Range` type in public function
[INFO] [stdout]    --> chalk-engine/src/lib.rs:317:41
[INFO] [stdout]     |
[INFO] [stdout] 80  | / index_struct! {
[INFO] [stdout] 81  | |     pub struct TableIndex { // FIXME: pub b/c Fold
[INFO] [stdout] 82  | |         value: usize,
[INFO] [stdout] 83  | |     }
[INFO] [stdout] 84  | | }
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout] ...
[INFO] [stdout] 317 |               pub fn iterate_range(range: ::std::ops::Range<Self>) -> impl Iterator<Item = $n> {
[INFO] [stdout]     |                                           ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D explicit-range`
[INFO] [stdout]     = note: this error originates in the macro `index_struct` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `chalk-engine` (lib) due to 2 previous errors; 6 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "1a1899c8209f6c4d222d9d6cf998a97d2c49419ee368420366e06b6e329cba23", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a1899c8209f6c4d222d9d6cf998a97d2c49419ee368420366e06b6e329cba23", kill_on_drop: false }`
[INFO] [stdout] 1a1899c8209f6c4d222d9d6cf998a97d2c49419ee368420366e06b6e329cba23
