[INFO] fetching crate eqlog 0.7.0...
[INFO] checking eqlog-0.7.0 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] extracting crate eqlog 0.7.0 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate eqlog 0.7.0 on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate eqlog 0.7.0
[INFO] finished tweaking crates.io crate eqlog 0.7.0
[INFO] tweaked toml for crates.io crate eqlog 0.7.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate eqlog 0.7.0 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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tabled_derive v0.3.0
[INFO] [stderr]   Downloaded papergrid v0.4.0
[INFO] [stderr]   Downloaded eqlog-runtime v0.5.0
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[INFO] [stderr]   Downloaded eqlog v0.6.0
[INFO] [stderr]   Downloaded eqlog-eqlog v0.7.0
[INFO] [stderr]   Downloaded eqlog-eqlog v0.6.0
[INFO] [stderr]   Downloaded tabled v0.7.0
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[INFO] [stdout] c94ba55b7f5f58f668aeb2e575e67e75c38b62c51aec2d108b632d87a3c2a617
[INFO] running `Command { std: "docker" "start" "-a" "c94ba55b7f5f58f668aeb2e575e67e75c38b62c51aec2d108b632d87a3c2a617", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c94ba55b7f5f58f668aeb2e575e67e75c38b62c51aec2d108b632d87a3c2a617", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c94ba55b7f5f58f668aeb2e575e67e75c38b62c51aec2d108b632d87a3c2a617", kill_on_drop: false }`
[INFO] [stdout] c94ba55b7f5f58f668aeb2e575e67e75c38b62c51aec2d108b632d87a3c2a617
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3abcd3c254187378d82aa99cd8954300506697fbd42702a8591e5abb7d67668f
[INFO] running `Command { std: "docker" "start" "-a" "3abcd3c254187378d82aa99cd8954300506697fbd42702a8591e5abb7d67668f", kill_on_drop: false }`
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[INFO] [stdout] warning: unused import: `Quantifier`
[INFO] [stdout]   --> src/flat_eqlog/mod.rs:19:44
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub use var_info::{CanAssumeFunctionality, Quantifier, RelationInfo};
[INFO] [stdout]    |                                            ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Quantifier`
[INFO] [stdout]   --> src/flat_eqlog/mod.rs:19:44
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub use var_info::{CanAssumeFunctionality, Quantifier, RelationInfo};
[INFO] [stdout]    |                                            ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/eqlog-40f8f7c159c82cab/out/grammar.rs:8939:13
[INFO] [stdout]      |
[INFO] [stdout] 8939 |             Err(error) => Err(__lalrpop_util::ParseError::User { error }),
[INFO] [stdout]      |             ^^^^^^^^^^ matches no values because `grammar_util::NeverType` is uninhabited
[INFO] [stdout]      |
[INFO] [stdout]      = note: to learn more about uninhabited types, see https://doc.rust-lang.org/nomicon/exotic-sizes.html#empty-types
[INFO] [stdout]      = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/eqlog-40f8f7c159c82cab/out/grammar.rs:8939:13
[INFO] [stdout]      |
[INFO] [stdout] 8939 |             Err(error) => Err(__lalrpop_util::ParseError::User { error }),
[INFO] [stdout]      |             ^^^^^^^^^^ matches no values because `grammar_util::NeverType` is uninhabited
[INFO] [stdout]      |
[INFO] [stdout]      = note: to learn more about uninhabited types, see https://doc.rust-lang.org/nomicon/exotic-sizes.html#empty-types
[INFO] [stdout]      = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/error.rs:263:13
[INFO] [stdout]     |
[INFO] [stdout] 263 |             ParseError::User { error } => match error {},
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^ matches no values because `grammar_util::NeverType` is uninhabited
[INFO] [stdout]     |
[INFO] [stdout]     = note: to learn more about uninhabited types, see https://doc.rust-lang.org/nomicon/exotic-sizes.html#empty-types
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/error.rs:263:13
[INFO] [stdout]     |
[INFO] [stdout] 263 |             ParseError::User { error } => match error {},
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^ matches no values because `grammar_util::NeverType` is uninhabited
[INFO] [stdout]     |
[INFO] [stdout]     = note: to learn more about uninhabited types, see https://doc.rust-lang.org/nomicon/exotic-sizes.html#empty-types
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `to_triple` is never used
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/eqlog-40f8f7c159c82cab/out/grammar.rs:8925:8
[INFO] [stdout]      |
[INFO] [stdout] 8923 | pub trait __ToTriple<'input, >
[INFO] [stdout]      |           ---------- associated function in this trait
[INFO] [stdout] 8924 | {
[INFO] [stdout] 8925 |     fn to_triple(value: Self) -> Result<(usize,Token<'input>,usize), __lalrpop_util::ParseError<usize, Token<'input>, NeverType>>;
[INFO] [stdout]      |        ^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `fixed_vars` is never read
[INFO] [stdout]   --> src/flat_eqlog/mod.rs:90:9
[INFO] [stdout]    |
[INFO] [stdout] 80 | pub struct FlatRuleAnalysis<'a> {
[INFO] [stdout]    |            ---------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 90 |     pub fixed_vars: BTreeMap<ByAddress<&'a [FlatStmt]>, BTreeSet<FlatVar>>,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `to_triple` is never used
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/eqlog-40f8f7c159c82cab/out/grammar.rs:8925:8
[INFO] [stdout]      |
[INFO] [stdout] 8923 | pub trait __ToTriple<'input, >
[INFO] [stdout]      |           ---------- associated function in this trait
[INFO] [stdout] 8924 | {
[INFO] [stdout] 8925 |     fn to_triple(value: Self) -> Result<(usize,Token<'input>,usize), __lalrpop_util::ParseError<usize, Token<'input>, NeverType>>;
[INFO] [stdout]      |        ^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `fixed_vars` is never read
[INFO] [stdout]   --> src/flat_eqlog/mod.rs:90:9
[INFO] [stdout]    |
[INFO] [stdout] 80 | pub struct FlatRuleAnalysis<'a> {
[INFO] [stdout]    |            ---------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 90 |     pub fixed_vars: BTreeMap<ByAddress<&'a [FlatStmt]>, BTreeSet<FlatVar>>,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 02s
[INFO] running `Command { std: "docker" "inspect" "3abcd3c254187378d82aa99cd8954300506697fbd42702a8591e5abb7d67668f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3abcd3c254187378d82aa99cd8954300506697fbd42702a8591e5abb7d67668f", kill_on_drop: false }`
[INFO] [stdout] 3abcd3c254187378d82aa99cd8954300506697fbd42702a8591e5abb7d67668f