[INFO] cloning repository https://github.com/khayliang/fe2o3-cc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/khayliang/fe2o3-cc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkhayliang%2Ffe2o3-cc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkhayliang%2Ffe2o3-cc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e15db7a6eff494a7dac346af1ed52977d56b9a2b
[INFO] testing khayliang/fe2o3-cc against master#432e145bd5a974c5b6f4dd9b352891bd7502b69d for pr-87041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkhayliang%2Ffe2o3-cc" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/khayliang/fe2o3-cc on toolchain 432e145bd5a974c5b6f4dd9b352891bd7502b69d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/khayliang/fe2o3-cc
[INFO] finished tweaking git repo https://github.com/khayliang/fe2o3-cc
[INFO] tweaked toml for git repo https://github.com/khayliang/fe2o3-cc written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/khayliang/fe2o3-cc already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c0962d0f73a84e3792239f3b0cf00118ac22db617d17bc115b018fe25f68a42b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "c0962d0f73a84e3792239f3b0cf00118ac22db617d17bc115b018fe25f68a42b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c0962d0f73a84e3792239f3b0cf00118ac22db617d17bc115b018fe25f68a42b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0962d0f73a84e3792239f3b0cf00118ac22db617d17bc115b018fe25f68a42b", kill_on_drop: false }`
[INFO] [stdout] c0962d0f73a84e3792239f3b0cf00118ac22db617d17bc115b018fe25f68a42b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4b5de56ec221d5609fbe40769dca765759eacd7ea0c0f827be699e530eb00707
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "4b5de56ec221d5609fbe40769dca765759eacd7ea0c0f827be699e530eb00707", kill_on_drop: false }`
[INFO] [stderr]    Compiling unindent v0.1.7
[INFO] [stderr]    Compiling smawk v0.3.1
[INFO] [stderr]    Compiling textwrap v0.13.4
[INFO] [stderr]    Compiling indoc v1.0.3
[INFO] [stderr]    Compiling rust_cc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.28s
[INFO] running `Command { std: "docker" "inspect" "4b5de56ec221d5609fbe40769dca765759eacd7ea0c0f827be699e530eb00707", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b5de56ec221d5609fbe40769dca765759eacd7ea0c0f827be699e530eb00707", kill_on_drop: false }`
[INFO] [stdout] 4b5de56ec221d5609fbe40769dca765759eacd7ea0c0f827be699e530eb00707
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d3683626e78e00f444e024bf571272e02c900f29c89499126e78af1797385a52
[INFO] running `Command { std: "docker" "start" "-a" "d3683626e78e00f444e024bf571272e02c900f29c89499126e78af1797385a52", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_cc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.05s
[INFO] running `Command { std: "docker" "inspect" "d3683626e78e00f444e024bf571272e02c900f29c89499126e78af1797385a52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3683626e78e00f444e024bf571272e02c900f29c89499126e78af1797385a52", kill_on_drop: false }`
[INFO] [stdout] d3683626e78e00f444e024bf571272e02c900f29c89499126e78af1797385a52
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 82e1d0718d93f52ead616b3d6f171b5f07a0c937cea678a54cbc9712602e99d3
[INFO] running `Command { std: "docker" "start" "-a" "82e1d0718d93f52ead616b3d6f171b5f07a0c937cea678a54cbc9712602e99d3", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] running 19 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_cc-be3c6b4e38275fcc)
[INFO] [stdout] test parser::tests::test_parse_expression_tokens ... ok
[INFO] [stdout] test parser::tests::test_parse_return_statement_tokens ... ok
[INFO] [stdout] test syntax::tests::tests::test_constant_expression ... ok
[INFO] [stdout] test syntax::tests::tests::test_function ... ok
[INFO] [stdout] test syntax::tests::tests::test_integer_variable ... ok
[INFO] [stdout] test syntax::tests::tests::test_program ... ok
[INFO] [stdout] test syntax::tests::tests::test_return_statement ... ok
[INFO] [stdout] test tokenizer::tests::test_token_builder_builds_return_2 ... ok
[INFO] [stdout] test tokenizer::tests::test_token_factory_builds_identifiers ... ok
[INFO] [stdout] test tokenizer::tests::test_token_factory_builds_integer_constants ... ok
[INFO] [stdout] test tokenizer::tests::test_token_factory_builds_keywords ... ok
[INFO] [stdout] test tokenizer::tests::test_token_factory_builds_punctuation ... ok
[INFO] [stdout] test tokenizer::tests::test_token_factory_builds_unary_operations ... ok
[INFO] [stdout] test tokenizer::tests::test_tokenize_func_tokenizes_string ... ok
[INFO] [stdout] test parser::tests::test_parse_all_tokens_into_program_with_main ... ok
[INFO] [stdout] test parser::tests::test_parse_function_statement_tokens ... ok
[INFO] [stdout] test tokenizer::tests::test_tokenize_empty_string ... ok
[INFO] [stdout] test syntax::tests::tests::create_new_program_fails - should panic ... ok
[INFO] [stdout] test parser::tests::test_parse_tokens_into_program_without_main_function - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 19 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_cc-929785238af6ab4c)
[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 rust_cc
[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" "82e1d0718d93f52ead616b3d6f171b5f07a0c937cea678a54cbc9712602e99d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82e1d0718d93f52ead616b3d6f171b5f07a0c937cea678a54cbc9712602e99d3", kill_on_drop: false }`
[INFO] [stdout] 82e1d0718d93f52ead616b3d6f171b5f07a0c937cea678a54cbc9712602e99d3