[INFO] cloning repository https://github.com/rightfold/feldspar
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rightfold/feldspar" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frightfold%2Ffeldspar", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frightfold%2Ffeldspar'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 435aac58af0ff8833a6c18fe84fb35fff70315b8
[INFO] testing rightfold/feldspar against beta-2021-09-08 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frightfold%2Ffeldspar" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rightfold/feldspar on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rightfold/feldspar
[INFO] finished tweaking git repo https://github.com/rightfold/feldspar
[INFO] tweaked toml for git repo https://github.com/rightfold/feldspar written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/rightfold/feldspar already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded nom v2.2.1
[INFO] [stderr]   Downloaded typed-arena v1.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0ed7c67c3d558f74351f98a1fa0e2c0d0af7e456700538f1e94161b96265787c
[INFO] running `Command { std: "docker" "start" "-a" "0ed7c67c3d558f74351f98a1fa0e2c0d0af7e456700538f1e94161b96265787c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0ed7c67c3d558f74351f98a1fa0e2c0d0af7e456700538f1e94161b96265787c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ed7c67c3d558f74351f98a1fa0e2c0d0af7e456700538f1e94161b96265787c", kill_on_drop: false }`
[INFO] [stdout] 0ed7c67c3d558f74351f98a1fa0e2c0d0af7e456700538f1e94161b96265787c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b3bf5721fc37f38c3c4e44db230e43dc5f5963b1048b30d4679dea406c577d22
[INFO] running `Command { std: "docker" "start" "-a" "b3bf5721fc37f38c3c4e44db230e43dc5f5963b1048b30d4679dea406c577d22", kill_on_drop: false }`
[INFO] [stderr]    Compiling typed-arena v1.2.0
[INFO] [stderr]    Compiling nom v2.2.1
[INFO] [stderr]    Compiling feldspar v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/value.rs:28:26
[INFO] [stdout]    |
[INFO] [stdout] 28 |   FileHandle(RefCell<Box<io::Write>>),
[INFO] [stdout]    |                          ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/value.rs:91:52
[INFO] [stdout]    |
[INFO] [stdout] 91 |   pub fn file_handle_write(&self) -> Option<RefMut<io::Write>> {
[INFO] [stdout]    |                                                    ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Bytes`
[INFO] [stdout]   --> src/value.rs:21:3
[INFO] [stdout]    |
[INFO] [stdout] 21 |   Bytes(Vec<u8>),
[INFO] [stdout]    |   ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/bin/feldspar.rs:26:20
[INFO] [stdout]    |
[INFO] [stdout] 26 |     AnyError(other.description().to_string())
[INFO] [stdout]    |                    ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.38s
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b3bf5721fc37f38c3c4e44db230e43dc5f5963b1048b30d4679dea406c577d22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b3bf5721fc37f38c3c4e44db230e43dc5f5963b1048b30d4679dea406c577d22", kill_on_drop: false }`
[INFO] [stdout] b3bf5721fc37f38c3c4e44db230e43dc5f5963b1048b30d4679dea406c577d22
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 86239ae2f0fa1554366332dad996d1e26cc7f7cf4655fbf0d2e8977b4f62de9c
[INFO] running `Command { std: "docker" "start" "-a" "86239ae2f0fa1554366332dad996d1e26cc7f7cf4655fbf0d2e8977b4f62de9c", kill_on_drop: false }`
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/value.rs:28:26
[INFO] [stdout]    |
[INFO] [stdout] 28 |   FileHandle(RefCell<Box<io::Write>>),
[INFO] [stdout]    |                          ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/value.rs:91:52
[INFO] [stdout]    |
[INFO] [stdout] 91 |   pub fn file_handle_write(&self) -> Option<RefMut<io::Write>> {
[INFO] [stdout]    |                                                    ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling feldspar v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant is never constructed: `Bytes`
[INFO] [stdout]   --> src/value.rs:21:3
[INFO] [stdout]    |
[INFO] [stdout] 21 |   Bytes(Vec<u8>),
[INFO] [stdout]    |   ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> src/bin/feldspar.rs:26:20
[INFO] [stdout]    |
[INFO] [stdout] 26 |     AnyError(other.description().to_string())
[INFO] [stdout]    |                    ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/value.rs:28:26
[INFO] [stdout]    |
[INFO] [stdout] 28 |   FileHandle(RefCell<Box<io::Write>>),
[INFO] [stdout]    |                          ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/value.rs:91:52
[INFO] [stdout]    |
[INFO] [stdout] 91 |   pub fn file_handle_write(&self) -> Option<RefMut<io::Write>> {
[INFO] [stdout]    |                                                    ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Bytes`
[INFO] [stdout]   --> src/value.rs:21:3
[INFO] [stdout]    |
[INFO] [stdout] 21 |   Bytes(Vec<u8>),
[INFO] [stdout]    |   ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.93s
[INFO] running `Command { std: "docker" "inspect" "86239ae2f0fa1554366332dad996d1e26cc7f7cf4655fbf0d2e8977b4f62de9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "86239ae2f0fa1554366332dad996d1e26cc7f7cf4655fbf0d2e8977b4f62de9c", kill_on_drop: false }`
[INFO] [stdout] 86239ae2f0fa1554366332dad996d1e26cc7f7cf4655fbf0d2e8977b4f62de9c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7bb3c362f2604365da7e798404614832e9d4522ad3769fe3f1c1e1f5ad6d3c97
[INFO] running `Command { std: "docker" "start" "-a" "7bb3c362f2604365da7e798404614832e9d4522ad3769fe3f1c1e1f5ad6d3c97", kill_on_drop: false }`
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/value.rs:28:26
[INFO] [stderr]    |
[INFO] [stderr] 28 |   FileHandle(RefCell<Box<io::Write>>),
[INFO] [stderr]    |                          ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/value.rs:91:52
[INFO] [stderr]    |
[INFO] [stderr] 91 |   pub fn file_handle_write(&self) -> Option<RefMut<io::Write>> {
[INFO] [stderr]    |                                                    ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Bytes`
[INFO] [stderr]   --> src/value.rs:21:3
[INFO] [stderr]    |
[INFO] [stderr] 21 |   Bytes(Vec<u8>),
[INFO] [stderr]    |   ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `feldspar` (lib) generated 3 warnings
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]   --> src/bin/feldspar.rs:26:20
[INFO] [stderr]    |
[INFO] [stderr] 26 |     AnyError(other.description().to_string())
[INFO] [stderr]    |                    ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `feldspar` (lib test) generated 3 warnings (3 duplicates)
[INFO] [stderr] warning: `feldspar` (bin "feldspar" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/feldspar-62915f7137a8ed1e)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test parse::test::expr_test::test_app ... ok
[INFO] [stdout] test parse::test::expr_test::test_bool ... ok
[INFO] [stdout] test parse::test::expr_test::test_abs ... ok
[INFO] [stdout] test parse::test::expr_test::test_let ... ok
[INFO] [stdout] test parse::test::expr_test::test_var ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/feldspar-9e1273a297d11b04)
[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 feldspar
[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" "7bb3c362f2604365da7e798404614832e9d4522ad3769fe3f1c1e1f5ad6d3c97", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7bb3c362f2604365da7e798404614832e9d4522ad3769fe3f1c1e1f5ad6d3c97", kill_on_drop: false }`
[INFO] [stdout] 7bb3c362f2604365da7e798404614832e9d4522ad3769fe3f1c1e1f5ad6d3c97