[INFO] cloning repository https://github.com/lukas-tr/formal-semantics-of-programming-languages
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lukas-tr/formal-semantics-of-programming-languages" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flukas-tr%2Fformal-semantics-of-programming-languages", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flukas-tr%2Fformal-semantics-of-programming-languages'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d4a3a2f1a5fb6c53bc9cd69a0b13ab9616d22f18
[INFO] testing lukas-tr/formal-semantics-of-programming-languages against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flukas-tr%2Fformal-semantics-of-programming-languages" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/lukas-tr/formal-semantics-of-programming-languages
[INFO] finished tweaking git repo https://github.com/lukas-tr/formal-semantics-of-programming-languages
[INFO] tweaked toml for git repo https://github.com/lukas-tr/formal-semantics-of-programming-languages written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/lukas-tr/formal-semantics-of-programming-languages on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/lukas-tr/formal-semantics-of-programming-languages 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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f3a2ac4aeb2c115b9fdee047e0ace56c02f255640b8e133a10f8961a79e1975c
[INFO] running `Command { std: "docker" "start" "-a" "f3a2ac4aeb2c115b9fdee047e0ace56c02f255640b8e133a10f8961a79e1975c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f3a2ac4aeb2c115b9fdee047e0ace56c02f255640b8e133a10f8961a79e1975c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3a2ac4aeb2c115b9fdee047e0ace56c02f255640b8e133a10f8961a79e1975c", kill_on_drop: false }`
[INFO] [stdout] f3a2ac4aeb2c115b9fdee047e0ace56c02f255640b8e133a10f8961a79e1975c
[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=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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c1e1aba478c3932fe894f6defa4311770f9a26df4c7b8b198c34baf3ff56efad
[INFO] running `Command { std: "docker" "start" "-a" "c1e1aba478c3932fe894f6defa4311770f9a26df4c7b8b198c34baf3ff56efad", kill_on_drop: false }`
[INFO] [stderr]    Compiling formal-semantics-of-programming-languages v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/eval.rs:384:19
[INFO] [stdout]     |
[INFO] [stdout] 384 |     pub fn lookup(&self, signature: &Signature<'a>) -> Result<Procedure, String> {
[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] 384 |     pub fn lookup(&self, signature: &Signature<'a>) -> Result<Procedure<'_>, String> {
[INFO] [stdout]     |                                                                        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/typecheck.rs:12:22
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub fn typecheck(&self) -> Result<Program, String> {
[INFO] [stdout]    |                      ^^^^^            ^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub fn typecheck(&self) -> Result<Program<'_>, String> {
[INFO] [stdout]    |                                              ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.39s
[INFO] running `Command { std: "docker" "inspect" "c1e1aba478c3932fe894f6defa4311770f9a26df4c7b8b198c34baf3ff56efad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1e1aba478c3932fe894f6defa4311770f9a26df4c7b8b198c34baf3ff56efad", kill_on_drop: false }`
[INFO] [stdout] c1e1aba478c3932fe894f6defa4311770f9a26df4c7b8b198c34baf3ff56efad
[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=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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e71abece1ee46b62855297f17453ea22d3d3ac2897a427c8c6bf88b3edf066b2
[INFO] running `Command { std: "docker" "start" "-a" "e71abece1ee46b62855297f17453ea22d3d3ac2897a427c8c6bf88b3edf066b2", kill_on_drop: false }`
[INFO] [stderr]    Compiling formal-semantics-of-programming-languages v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/eval.rs:384:19
[INFO] [stdout]     |
[INFO] [stdout] 384 |     pub fn lookup(&self, signature: &Signature<'a>) -> Result<Procedure, String> {
[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] 384 |     pub fn lookup(&self, signature: &Signature<'a>) -> Result<Procedure<'_>, String> {
[INFO] [stdout]     |                                                                        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/typecheck.rs:12:22
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub fn typecheck(&self) -> Result<Program, String> {
[INFO] [stdout]    |                      ^^^^^            ^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub fn typecheck(&self) -> Result<Program<'_>, String> {
[INFO] [stdout]    |                                              ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.91s
[INFO] running `Command { std: "docker" "inspect" "e71abece1ee46b62855297f17453ea22d3d3ac2897a427c8c6bf88b3edf066b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e71abece1ee46b62855297f17453ea22d3d3ac2897a427c8c6bf88b3edf066b2", kill_on_drop: false }`
[INFO] [stdout] e71abece1ee46b62855297f17453ea22d3d3ac2897a427c8c6bf88b3edf066b2
[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=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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1343cac6bc07983e168e131d1997f659fe19ba2b3a1f5aeb472aa70da18b2a2f
[INFO] running `Command { std: "docker" "start" "-a" "1343cac6bc07983e168e131d1997f659fe19ba2b3a1f5aeb472aa70da18b2a2f", kill_on_drop: false }`
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout] 
[INFO] [stderr]    --> src/eval.rs:384:19
[INFO] [stdout] running 9 tests
[INFO] [stderr]     |
[INFO] [stdout] test eval::tests::test_gcd_60_12 ... ok
[INFO] [stderr] 384 |     pub fn lookup(&self, signature: &Signature<'a>) -> Result<Procedure, String> {
[INFO] [stdout] test eval::tests::test_gcd_11_13 ... ok
[INFO] [stderr]     |                   ^^^^^ the lifetime is elided here           ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout] test eval::tests::test_gcd_24_60 ... ok
[INFO] [stderr]     |
[INFO] [stdout] test eval::tests::test_eval_expression ... ok
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] test typecheck::tests::test_typecheck_undefined_variable ... ok
[INFO] [stderr]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] test typecheck::tests::test_typecheck_duplicate_parameters_2 ... ok
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stdout] test typecheck::tests::test_typecheck_gcd ... ok
[INFO] [stderr]     |
[INFO] [stdout] test typecheck::tests::test_typecheck_duplicate_parameters ... ok
[INFO] [stderr] 384 |     pub fn lookup(&self, signature: &Signature<'a>) -> Result<Procedure<'_>, String> {
[INFO] [stdout] test eval::tests::test_gcd_6_4 ... ok
[INFO] [stderr]     |                                                                        ++++
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout] 
[INFO] [stderr]   --> src/typecheck.rs:12:22
[INFO] [stderr]    |
[INFO] [stderr] 12 |     pub fn typecheck(&self) -> Result<Program, String> {
[INFO] [stderr]    |                      ^^^^^            ^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]    |                      |
[INFO] [stderr]    |                      the lifetime is elided here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 12 |     pub fn typecheck(&self) -> Result<Program<'_>, String> {
[INFO] [stderr]    |                                              ++++
[INFO] [stderr] 
[INFO] [stderr] warning: `formal-semantics-of-programming-languages` (bin "formal-semantics-of-programming-languages" test) generated 2 warnings (run `cargo fix --bin "formal-semantics-of-programming-languages" -p formal-semantics-of-programming-languages --tests` to apply 2 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/formal_semantics_of_programming_languages-6110effaf0e3c191)
[INFO] running `Command { std: "docker" "inspect" "1343cac6bc07983e168e131d1997f659fe19ba2b3a1f5aeb472aa70da18b2a2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1343cac6bc07983e168e131d1997f659fe19ba2b3a1f5aeb472aa70da18b2a2f", kill_on_drop: false }`
[INFO] [stdout] 1343cac6bc07983e168e131d1997f659fe19ba2b3a1f5aeb472aa70da18b2a2f