[INFO] fetching crate langlang_lib 0.1.2...
[INFO] testing langlang_lib-0.1.2 against master#562dee4820c458d823175268e41601d4c060588a for pr-154210-1
[INFO] extracting crate langlang_lib 0.1.2 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate langlang_lib 0.1.2
[INFO] finished tweaking crates.io crate langlang_lib 0.1.2
[INFO] tweaked toml for crates.io crate langlang_lib 0.1.2 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate langlang_lib 0.1.2 on toolchain 562dee4820c458d823175268e41601d4c060588a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 20 packages to latest compatible versions
[INFO] [stderr]       Adding env_logger v0.8.4 (available: v0.11.10)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded langlang_syntax v0.1.2
[INFO] [stderr]   Downloaded langlang_value v0.1.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 41ae6caad104359ba2a46302fe0c7a9f73fbedeaf3f98d858af00dd4db1afa3a
[INFO] running `Command { std: "docker" "start" "-a" "41ae6caad104359ba2a46302fe0c7a9f73fbedeaf3f98d858af00dd4db1afa3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "41ae6caad104359ba2a46302fe0c7a9f73fbedeaf3f98d858af00dd4db1afa3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "41ae6caad104359ba2a46302fe0c7a9f73fbedeaf3f98d858af00dd4db1afa3a", kill_on_drop: false }`
[INFO] [stdout] 41ae6caad104359ba2a46302fe0c7a9f73fbedeaf3f98d858af00dd4db1afa3a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 783fba874ea8fe3f700a59c10051e41501d02a6ee77d4304d13f2321dada0b3a
[INFO] running `Command { std: "docker" "start" "-a" "783fba874ea8fe3f700a59c10051e41501d02a6ee77d4304d13f2321dada0b3a", kill_on_drop: false }`
[INFO] [stderr]    Compiling regex-automata v0.4.14
[INFO] [stderr]    Compiling humantime v2.3.0
[INFO] [stderr]    Compiling langlang_value v0.1.2
[INFO] [stderr]    Compiling langlang_syntax v0.1.2
[INFO] [stderr]    Compiling regex v1.12.3
[INFO] [stderr]    Compiling env_logger v0.8.4
[INFO] [stderr]    Compiling langlang_lib v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.43s
[INFO] running `Command { std: "docker" "inspect" "783fba874ea8fe3f700a59c10051e41501d02a6ee77d4304d13f2321dada0b3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "783fba874ea8fe3f700a59c10051e41501d02a6ee77d4304d13f2321dada0b3a", kill_on_drop: false }`
[INFO] [stdout] 783fba874ea8fe3f700a59c10051e41501d02a6ee77d4304d13f2321dada0b3a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3199ea81b2e6f3d390eab927050f7291e6b43b64f40e263c54e8433d57f1fa6b
[INFO] running `Command { std: "docker" "start" "-a" "3199ea81b2e6f3d390eab927050f7291e6b43b64f40e263c54e8433d57f1fa6b", kill_on_drop: false }`
[INFO] [stderr]    Compiling langlang_lib v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.09s
[INFO] running `Command { std: "docker" "inspect" "3199ea81b2e6f3d390eab927050f7291e6b43b64f40e263c54e8433d57f1fa6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3199ea81b2e6f3d390eab927050f7291e6b43b64f40e263c54e8433d57f1fa6b", kill_on_drop: false }`
[INFO] [stdout] 3199ea81b2e6f3d390eab927050f7291e6b43b64f40e263c54e8433d57f1fa6b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9c1a17f40fa469282177a15e7b2939f3c0ed89bd515c995980372353266b83bb
[INFO] running `Command { std: "docker" "start" "-a" "9c1a17f40fa469282177a15e7b2939f3c0ed89bd515c995980372353266b83bb", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/langlang_lib-5d58671defd07cc5)
[INFO] [stdout] 
[INFO] [stdout] running 30 tests
[INFO] [stdout] test compiler::tests::detect_left_recursion_direct_lr ... ok
[INFO] [stdout] test compiler::tests::detect_left_recursion_not_lr ... ok
[INFO] [stdout] test vm::tests::capture_choice_within_var ... ok
[INFO] [stdout] test vm::tests::ch_1 ... ok
[INFO] [stdout] test compiler::tests::detect_left_recursion_wrapping_precedence ... ok
[INFO] [stdout] test vm::tests::any_1 ... ok
[INFO] [stdout] test vm::tests::lrvar_1 ... ok
[INFO] [stdout] test vm::tests::any_2_eof ... ok
[INFO] [stdout] test vm::tests::lrvar_2 ... ok
[INFO] [stdout] test vm::tests::capture_choice_0 ... ok
[INFO] [stdout] test vm::tests::lrvar_3 ... ok
[INFO] [stdout] test vm::tests::lrvar_err ... ok
[INFO] [stdout] test vm::tests::not_1 ... ok
[INFO] [stdout] test vm::tests::not_2 ... ok
[INFO] [stdout] test vm::tests::ord_1 ... ok
[INFO] [stdout] test compiler::tests::detect_left_recursion_indirect_lr ... ok
[INFO] [stdout] test vm::tests::ord_2 ... ok
[INFO] [stdout] test vm::tests::ord_3 ... ok
[INFO] [stdout] test vm::tests::ch_2 ... ok
[INFO] [stdout] test compiler::tests::detect_left_recursion_mutual ... ok
[INFO] [stdout] test vm::tests::rep_1 ... ok
[INFO] [stdout] test vm::tests::rep_2 ... ok
[INFO] [stdout] test vm::tests::span_1 ... ok
[INFO] [stdout] test vm::tests::span_2 ... ok
[INFO] [stdout] test vm::tests::str_1 ... ok
[INFO] [stdout] test vm::tests::str_2 ... ok
[INFO] [stdout] test vm::tests::str_3 ... ok
[INFO] [stdout] test vm::tests::throw_1 ... ok
[INFO] [stdout] test vm::tests::var_1 ... ok
[INFO] [stdout] test vm::tests::var_2 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 30 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests langlang_lib
[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" "9c1a17f40fa469282177a15e7b2939f3c0ed89bd515c995980372353266b83bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c1a17f40fa469282177a15e7b2939f3c0ed89bd515c995980372353266b83bb", kill_on_drop: false }`
[INFO] [stdout] 9c1a17f40fa469282177a15e7b2939f3c0ed89bd515c995980372353266b83bb