[INFO] fetching crate buguc 0.3.0...
[INFO] testing buguc-0.3.0 against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-7
[INFO] extracting crate buguc 0.3.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate buguc 0.3.0
[INFO] finished tweaking crates.io crate buguc 0.3.0
[INFO] tweaked toml for crates.io crate buguc 0.3.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate buguc 0.3.0 on toolchain c2e32f1c9652b13ed99608599c1e855462f421f3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate buguc 0.3.0 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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 486bea60c6b79701eeb359e627fabaa1bb8ae046eae9c99890bf353d67083f5e
[INFO] running `Command { std: "docker" "start" "-a" "486bea60c6b79701eeb359e627fabaa1bb8ae046eae9c99890bf353d67083f5e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "486bea60c6b79701eeb359e627fabaa1bb8ae046eae9c99890bf353d67083f5e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "486bea60c6b79701eeb359e627fabaa1bb8ae046eae9c99890bf353d67083f5e", kill_on_drop: false }`
[INFO] [stdout] 486bea60c6b79701eeb359e627fabaa1bb8ae046eae9c99890bf353d67083f5e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 63d0ff7697053e8479cc7b92f07ef6834e12f28ee8db0f6b5413178204e12966
[INFO] running `Command { std: "docker" "start" "-a" "63d0ff7697053e8479cc7b92f07ef6834e12f28ee8db0f6b5413178204e12966", kill_on_drop: false }`
[INFO] [stderr]    Compiling buguc v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `edges` is never read
[INFO] [stdout]    --> src/ir_handle/dataflow.rs:178:8
[INFO] [stdout]     |
[INFO] [stdout] 176 | pub struct BasicBlock<'a> {
[INFO] [stdout]     |            ---------- field in this struct
[INFO] [stdout] 177 |    pub stmts: Vec<&'a IrStmt>,
[INFO] [stdout] 178 |    pub edges: Vec<&'a BasicBlock<'a>>,  // from none,branch,cond branch
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `BasicBlock` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/symbols.rs:60:18
[INFO] [stdout]    |
[INFO] [stdout] 60 |     pub fn entry(&mut self, s: &Vec<u32>, name: &String) -> Entry<String, Symbol> {
[INFO] [stdout]    |                  ^^^^^^^^^ the lifetime is elided here      ^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 60 |     pub fn entry(&mut self, s: &Vec<u32>, name: &String) -> Entry<'_, String, Symbol> {
[INFO] [stdout]    |                                                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.93s
[INFO] running `Command { std: "docker" "inspect" "63d0ff7697053e8479cc7b92f07ef6834e12f28ee8db0f6b5413178204e12966", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63d0ff7697053e8479cc7b92f07ef6834e12f28ee8db0f6b5413178204e12966", kill_on_drop: false }`
[INFO] [stdout] 63d0ff7697053e8479cc7b92f07ef6834e12f28ee8db0f6b5413178204e12966
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f8596f98a5acdcc28438a2e9bc78b3108b64062c8549280312307b79fd481d61
[INFO] running `Command { std: "docker" "start" "-a" "f8596f98a5acdcc28438a2e9bc78b3108b64062c8549280312307b79fd481d61", kill_on_drop: false }`
[INFO] [stdout] warning: field `edges` is never read
[INFO] [stdout]    --> src/ir_handle/dataflow.rs:178:8
[INFO] [stdout]     |
[INFO] [stdout] 176 | pub struct BasicBlock<'a> {
[INFO] [stdout]     |            ---------- field in this struct
[INFO] [stdout] 177 |    pub stmts: Vec<&'a IrStmt>,
[INFO] [stdout] 178 |    pub edges: Vec<&'a BasicBlock<'a>>,  // from none,branch,cond branch
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `BasicBlock` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/symbols.rs:60:18
[INFO] [stdout]    |
[INFO] [stdout] 60 |     pub fn entry(&mut self, s: &Vec<u32>, name: &String) -> Entry<String, Symbol> {
[INFO] [stdout]    |                  ^^^^^^^^^ the lifetime is elided here      ^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 60 |     pub fn entry(&mut self, s: &Vec<u32>, name: &String) -> Entry<'_, String, Symbol> {
[INFO] [stdout]    |                                                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling buguc v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `edges` is never read
[INFO] [stdout]    --> src/ir_handle/dataflow.rs:178:8
[INFO] [stdout]     |
[INFO] [stdout] 176 | pub struct BasicBlock<'a> {
[INFO] [stdout]     |            ---------- field in this struct
[INFO] [stdout] 177 |    pub stmts: Vec<&'a IrStmt>,
[INFO] [stdout] 178 |    pub edges: Vec<&'a BasicBlock<'a>>,  // from none,branch,cond branch
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `BasicBlock` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/symbols.rs:60:18
[INFO] [stdout]    |
[INFO] [stdout] 60 |     pub fn entry(&mut self, s: &Vec<u32>, name: &String) -> Entry<String, Symbol> {
[INFO] [stdout]    |                  ^^^^^^^^^ the lifetime is elided here      ^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 60 |     pub fn entry(&mut self, s: &Vec<u32>, name: &String) -> Entry<'_, String, Symbol> {
[INFO] [stdout]    |                                                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.18s
[INFO] running `Command { std: "docker" "inspect" "f8596f98a5acdcc28438a2e9bc78b3108b64062c8549280312307b79fd481d61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f8596f98a5acdcc28438a2e9bc78b3108b64062c8549280312307b79fd481d61", kill_on_drop: false }`
[INFO] [stdout] f8596f98a5acdcc28438a2e9bc78b3108b64062c8549280312307b79fd481d61
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0b3a5275e35b68508e6f6af0d276f9bd3d5161d82b8c203d6518d667ddee0f25
[INFO] running `Command { std: "docker" "start" "-a" "0b3a5275e35b68508e6f6af0d276f9bd3d5161d82b8c203d6518d667ddee0f25", kill_on_drop: false }`
[INFO] [stderr] warning: field `edges` is never read
[INFO] [stderr]    --> src/ir_handle/dataflow.rs:178:8
[INFO] [stderr]     |
[INFO] [stderr] 176 | pub struct BasicBlock<'a> {
[INFO] [stderr]     |            ---------- field in this struct
[INFO] [stderr] 177 |    pub stmts: Vec<&'a IrStmt>,
[INFO] [stderr] 178 |    pub edges: Vec<&'a BasicBlock<'a>>,  // from none,branch,cond branch
[INFO] [stderr]     |        ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `BasicBlock` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/symbols.rs:60:18
[INFO] [stderr]    |
[INFO] [stderr] 60 |     pub fn entry(&mut self, s: &Vec<u32>, name: &String) -> Entry<String, Symbol> {
[INFO] [stderr]    |                  ^^^^^^^^^ the lifetime is elided here      ^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 60 |     pub fn entry(&mut self, s: &Vec<u32>, name: &String) -> Entry<'_, String, Symbol> {
[INFO] [stderr]    |                                                                   +++
[INFO] [stderr] 
[INFO] [stderr] warning: `buguc` (lib) generated 2 warnings (run `cargo fix --lib -p buguc` to apply 1 suggestion)
[INFO] [stderr] warning: `buguc` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/buguc-dbfbc391592add4a)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/buguc-ff145b0aab233582)
[INFO] [stdout] test symbols::tests::test_enter ... ok
[INFO] [stdout] test symbols::tests::test_enter2 ... ok
[INFO] [stdout] test symbols::tests::test_enter3 ... ok
[INFO] [stdout] test symbols::tests::test_fn_1 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests buguc
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "0b3a5275e35b68508e6f6af0d276f9bd3d5161d82b8c203d6518d667ddee0f25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b3a5275e35b68508e6f6af0d276f9bd3d5161d82b8c203d6518d667ddee0f25", kill_on_drop: false }`
[INFO] [stdout] 0b3a5275e35b68508e6f6af0d276f9bd3d5161d82b8c203d6518d667ddee0f25