[INFO] fetching crate libpatron 0.1.0...
[INFO] testing libpatron-0.1.0 against 1.75.0 for beta-1.76-1
[INFO] extracting crate libpatron 0.1.0 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate libpatron 0.1.0 on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate libpatron 0.1.0
[INFO] finished tweaking crates.io crate libpatron 0.1.0
[INFO] tweaked toml for crates.io crate libpatron 0.1.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded fuzzy-matcher v0.3.7
[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" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ec313cf98a88a2465e1350d28c1eb9fcce6c0d4643d6123da33fc13c429b8322
[INFO] running `Command { std: "docker" "start" "-a" "ec313cf98a88a2465e1350d28c1eb9fcce6c0d4643d6123da33fc13c429b8322", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ec313cf98a88a2465e1350d28c1eb9fcce6c0d4643d6123da33fc13c429b8322", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec313cf98a88a2465e1350d28c1eb9fcce6c0d4643d6123da33fc13c429b8322", kill_on_drop: false }`
[INFO] [stdout] ec313cf98a88a2465e1350d28c1eb9fcce6c0d4643d6123da33fc13c429b8322
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+1.75.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 524582d57f11389d3c82c69d32a6c6cd71790cd1799d8277ea44ebc73a0763ca
[INFO] running `Command { std: "docker" "start" "-a" "524582d57f11389d3c82c69d32a6c6cd71790cd1799d8277ea44ebc73a0763ca", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]    Compiling serde v1.0.194
[INFO] [stderr]    Compiling ahash v0.7.7
[INFO] [stderr]    Compiling codespan-reporting v0.11.1
[INFO] [stderr]    Compiling fuzzy-matcher v0.3.7
[INFO] [stderr]    Compiling getrandom v0.2.11
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling string-interner v0.14.0
[INFO] [stderr]    Compiling libpatron v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::fmt::Display`
[INFO] [stdout]  --> src/ir/serialize.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::fmt::Display;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ctx`
[INFO] [stdout]    --> src/ir/serialize.rs:279:25
[INFO] [stdout]     |
[INFO] [stdout] 279 |     fn serialize(&self, ctx: &Context, writer: &mut impl Write) -> std::io::Result<()> {
[INFO] [stdout]     |                         ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `writer`
[INFO] [stdout]    --> src/ir/serialize.rs:279:40
[INFO] [stdout]     |
[INFO] [stdout] 279 |     fn serialize(&self, ctx: &Context, writer: &mut impl Write) -> std::io::Result<()> {
[INFO] [stdout]     |                                        ^^^^^^ help: if this is intentional, prefix it with an underscore: `_writer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `ctx` is never read
[INFO] [stdout]   --> src/btor2/serialize.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 23 | struct Serializer<'a, W: std::io::Write> {
[INFO] [stdout]    |        ---------- field in this struct
[INFO] [stdout] 24 |     ctx: &'a Context,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.31s
[INFO] running `Command { std: "docker" "inspect" "524582d57f11389d3c82c69d32a6c6cd71790cd1799d8277ea44ebc73a0763ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "524582d57f11389d3c82c69d32a6c6cd71790cd1799d8277ea44ebc73a0763ca", kill_on_drop: false }`
[INFO] [stdout] 524582d57f11389d3c82c69d32a6c6cd71790cd1799d8277ea44ebc73a0763ca
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+1.75.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 23a838533079646f1e7fb1d75cc65a6634726c30f6e7d0252bae83672e7f334a
[INFO] running `Command { std: "docker" "start" "-a" "23a838533079646f1e7fb1d75cc65a6634726c30f6e7d0252bae83672e7f334a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libpatron v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::fmt::Display`
[INFO] [stdout]  --> src/ir/serialize.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::fmt::Display;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ctx`
[INFO] [stdout]    --> src/ir/serialize.rs:279:25
[INFO] [stdout]     |
[INFO] [stdout] 279 |     fn serialize(&self, ctx: &Context, writer: &mut impl Write) -> std::io::Result<()> {
[INFO] [stdout]     |                         ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `writer`
[INFO] [stdout]    --> src/ir/serialize.rs:279:40
[INFO] [stdout]     |
[INFO] [stdout] 279 |     fn serialize(&self, ctx: &Context, writer: &mut impl Write) -> std::io::Result<()> {
[INFO] [stdout]     |                                        ^^^^^^ help: if this is intentional, prefix it with an underscore: `_writer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `ctx` is never read
[INFO] [stdout]   --> src/btor2/serialize.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 23 | struct Serializer<'a, W: std::io::Write> {
[INFO] [stdout]    |        ---------- field in this struct
[INFO] [stdout] 24 |     ctx: &'a Context,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `patron`
[INFO] [stdout]  --> tests/btor2_test.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use patron::ir::Context;
[INFO] [stdout]   |     ^^^^^^ use of undeclared crate or module `patron`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `patron`
[INFO] [stdout]  --> tests/btor2_test.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use patron::ir::SerializableIrNode;
[INFO] [stdout]   |     ^^^^^^ use of undeclared crate or module `patron`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `patron`
[INFO] [stdout]  --> tests/btor2_test.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use patron::btor2;
[INFO] [stdout]   |     ^^^^^^ use of undeclared crate or module `patron`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `libpatron` (test "btor2_test") due to 4 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unused import: `std::fmt::Display`
[INFO] [stdout]  --> src/ir/serialize.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::fmt::Display;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ctx`
[INFO] [stdout]    --> src/ir/serialize.rs:279:25
[INFO] [stdout]     |
[INFO] [stdout] 279 |     fn serialize(&self, ctx: &Context, writer: &mut impl Write) -> std::io::Result<()> {
[INFO] [stdout]     |                         ^^^ help: if this is intentional, prefix it with an underscore: `_ctx`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `writer`
[INFO] [stdout]    --> src/ir/serialize.rs:279:40
[INFO] [stdout]     |
[INFO] [stdout] 279 |     fn serialize(&self, ctx: &Context, writer: &mut impl Write) -> std::io::Result<()> {
[INFO] [stdout]     |                                        ^^^^^^ help: if this is intentional, prefix it with an underscore: `_writer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `ctx` is never read
[INFO] [stdout]   --> src/btor2/serialize.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 23 | struct Serializer<'a, W: std::io::Write> {
[INFO] [stdout]    |        ---------- field in this struct
[INFO] [stdout] 24 |     ctx: &'a Context,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "23a838533079646f1e7fb1d75cc65a6634726c30f6e7d0252bae83672e7f334a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23a838533079646f1e7fb1d75cc65a6634726c30f6e7d0252bae83672e7f334a", kill_on_drop: false }`
[INFO] [stdout] 23a838533079646f1e7fb1d75cc65a6634726c30f6e7d0252bae83672e7f334a
