[INFO] cloning repository https://github.com/vadixidav/typeflow
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/vadixidav/typeflow" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvadixidav%2Ftypeflow", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvadixidav%2Ftypeflow'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6e7450b545c6fe7743c914d2eeb75033a688abb4
[INFO] testing vadixidav/typeflow against master#b70888601af92f6cdc0364abab3446e418b91d36 for pr-86479
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvadixidav%2Ftypeflow" "/workspace/builds/worker-57/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-57/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/vadixidav/typeflow on toolchain b70888601af92f6cdc0364abab3446e418b91d36
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/vadixidav/typeflow
[INFO] finished tweaking git repo https://github.com/vadixidav/typeflow
[INFO] tweaked toml for git repo https://github.com/vadixidav/typeflow written to /workspace/builds/worker-57/source/Cargo.toml
[INFO] crate git repo https://github.com/vadixidav/typeflow already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/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" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 533f62086f5c0e6967d8a9be5f000140f753c2b4efd6f689ced0478fbf029f57
[INFO] running `Command { std: "docker" "start" "-a" "533f62086f5c0e6967d8a9be5f000140f753c2b4efd6f689ced0478fbf029f57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "533f62086f5c0e6967d8a9be5f000140f753c2b4efd6f689ced0478fbf029f57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "533f62086f5c0e6967d8a9be5f000140f753c2b4efd6f689ced0478fbf029f57", kill_on_drop: false }`
[INFO] [stdout] 533f62086f5c0e6967d8a9be5f000140f753c2b4efd6f689ced0478fbf029f57
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/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" "+b70888601af92f6cdc0364abab3446e418b91d36" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 18681f0ab036d97eec54aebe06b4fc9e34a6516e42d8551eba0b82a4915416cb
[INFO] running `Command { std: "docker" "start" "-a" "18681f0ab036d97eec54aebe06b4fc9e34a6516e42d8551eba0b82a4915416cb", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling either v1.5.0
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling cfg-if v0.1.9
[INFO] [stderr]    Compiling byteorder v1.2.4
[INFO] [stderr]    Compiling ascii v0.9.1
[INFO] [stderr]    Compiling boolinator v2.4.0
[INFO] [stderr]    Compiling log v0.4.6
[INFO] [stderr]    Compiling unreachable v1.0.0
[INFO] [stderr]    Compiling itertools v0.7.8
[INFO] [stderr]    Compiling tf-engine v0.1.0 (/opt/rustwide/workdir/engine)
[INFO] [stderr]    Compiling combine v3.8.1
[INFO] [stdout] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to <[T; N] as IntoIterator>::into_iter in Rust 2021.
[INFO] [stdout]   --> engine/src/primitive.rs:72:34
[INFO] [stdout]    |
[INFO] [stdout] 72 |     [STYPE, FTYPE, ITYPE, UTYPE].into_iter().cloned()
[INFO] [stdout]    |                                  ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(array_into_iter)]` on by default
[INFO] [stdout]    = warning: this changes meaning in Rust 2021
[INFO] [stdout]    = note: for more information, see issue #66145 <https://github.com/rust-lang/rust/issues/66145>
[INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity
[INFO] [stdout]    |
[INFO] [stdout] 72 |     [STYPE, FTYPE, ITYPE, UTYPE].iter().cloned()
[INFO] [stdout]    |                                  ^^^^
[INFO] [stdout] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value
[INFO] [stdout]    |
[INFO] [stdout] 72 |     IntoIterator::into_iter([STYPE, FTYPE, ITYPE, UTYPE]).cloned()
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^                            ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling typeflow-lang v0.1.0 (/opt/rustwide/workdir/lang)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.83s
[INFO] running `Command { std: "docker" "inspect" "18681f0ab036d97eec54aebe06b4fc9e34a6516e42d8551eba0b82a4915416cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18681f0ab036d97eec54aebe06b4fc9e34a6516e42d8551eba0b82a4915416cb", kill_on_drop: false }`
[INFO] [stdout] 18681f0ab036d97eec54aebe06b4fc9e34a6516e42d8551eba0b82a4915416cb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/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" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 770d5cb60f66a078b2aa651ea944a8896cc58d85fc4f8460952578689fb0f77f
[INFO] running `Command { std: "docker" "start" "-a" "770d5cb60f66a078b2aa651ea944a8896cc58d85fc4f8460952578689fb0f77f", kill_on_drop: false }`
[INFO] [stderr]    Compiling ucd-util v0.1.3
[INFO] [stderr]    Compiling lazy_static v1.3.0
[INFO] [stderr]    Compiling regex v1.1.6
[INFO] [stderr]    Compiling quick-error v1.2.2
[INFO] [stderr]    Compiling utf8-ranges v1.0.2
[INFO] [stderr]    Compiling termcolor v1.0.4
[INFO] [stdout] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to <[T; N] as IntoIterator>::into_iter in Rust 2021.
[INFO] [stdout]   --> engine/src/primitive.rs:72:34
[INFO] [stdout]    |
[INFO] [stdout] 72 |     [STYPE, FTYPE, ITYPE, UTYPE].into_iter().cloned()
[INFO] [stdout]    |                                  ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(array_into_iter)]` on by default
[INFO] [stdout]    = warning: this changes meaning in Rust 2021
[INFO] [stdout]    = note: for more information, see issue #66145 <https://github.com/rust-lang/rust/issues/66145>
[INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity
[INFO] [stdout]    |
[INFO] [stdout] 72 |     [STYPE, FTYPE, ITYPE, UTYPE].iter().cloned()
[INFO] [stdout]    |                                  ^^^^
[INFO] [stdout] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value
[INFO] [stdout]    |
[INFO] [stdout] 72 |     IntoIterator::into_iter([STYPE, FTYPE, ITYPE, UTYPE]).cloned()
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^                            ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling aho-corasick v0.7.3
[INFO] [stderr]    Compiling typeflow-lang v0.1.0 (/opt/rustwide/workdir/lang)
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling humantime v1.2.0
[INFO] [stderr]    Compiling regex-syntax v0.6.6
[INFO] [stderr]    Compiling env_logger v0.6.1
[INFO] [stderr]    Compiling tf-engine v0.1.0 (/opt/rustwide/workdir/engine)
[INFO] [stdout] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to <[T; N] as IntoIterator>::into_iter in Rust 2021.
[INFO] [stdout]   --> engine/src/primitive.rs:72:34
[INFO] [stdout]    |
[INFO] [stdout] 72 |     [STYPE, FTYPE, ITYPE, UTYPE].into_iter().cloned()
[INFO] [stdout]    |                                  ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(array_into_iter)]` on by default
[INFO] [stdout]    = warning: this changes meaning in Rust 2021
[INFO] [stdout]    = note: for more information, see issue #66145 <https://github.com/rust-lang/rust/issues/66145>
[INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity
[INFO] [stdout]    |
[INFO] [stdout] 72 |     [STYPE, FTYPE, ITYPE, UTYPE].iter().cloned()
[INFO] [stdout]    |                                  ^^^^
[INFO] [stdout] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value
[INFO] [stdout]    |
[INFO] [stdout] 72 |     IntoIterator::into_iter([STYPE, FTYPE, ITYPE, UTYPE]).cloned()
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^                            ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 8.23s
[INFO] running `Command { std: "docker" "inspect" "770d5cb60f66a078b2aa651ea944a8896cc58d85fc4f8460952578689fb0f77f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "770d5cb60f66a078b2aa651ea944a8896cc58d85fc4f8460952578689fb0f77f", kill_on_drop: false }`
[INFO] [stdout] 770d5cb60f66a078b2aa651ea944a8896cc58d85fc4f8460952578689fb0f77f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-57/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" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 40a9fac633989df37f97a471ecf3b78eb2f68623d1456516cd94a7f90ac5be6b
[INFO] running `Command { std: "docker" "start" "-a" "40a9fac633989df37f97a471ecf3b78eb2f68623d1456516cd94a7f90ac5be6b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to <[T; N] as IntoIterator>::into_iter in Rust 2021.
[INFO] [stderr]   --> engine/src/primitive.rs:72:34
[INFO] [stderr]    |
[INFO] [stderr] 72 |     [STYPE, FTYPE, ITYPE, UTYPE].into_iter().cloned()
[INFO] [stderr]    |                                  ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(array_into_iter)]` on by default
[INFO] [stderr]    = warning: this changes meaning in Rust 2021
[INFO] [stderr]    = note: for more information, see issue #66145 <https://github.com/rust-lang/rust/issues/66145>
[INFO] [stderr] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity
[INFO] [stderr]    |
[INFO] [stderr] 72 |     [STYPE, FTYPE, ITYPE, UTYPE].iter().cloned()
[INFO] [stderr]    |                                  ^^^^
[INFO] [stderr] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value
[INFO] [stderr]    |
[INFO] [stderr] 72 |     IntoIterator::into_iter([STYPE, FTYPE, ITYPE, UTYPE]).cloned()
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^                            ^
[INFO] [stderr] 
[INFO] [stderr] warning: `tf-engine` (lib) generated 1 warning
[INFO] [stderr] warning: `tf-engine` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/tf-0b9fc3b5df3cddb7)
[INFO] [stdout] 
[INFO] [stderr]      Running tests/add.rs (/opt/rustwide/target/debug/deps/add-5d6d923c68e82ea3)
[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] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test add_newtype_nodef ... ok
[INFO] [stdout] test add_newtype ... ok
[INFO] [stdout] test add_upcasting ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/bank.rs (/opt/rustwide/target/debug/deps/bank-ad49b155d55982b4)
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/tfl-f9ec6c2583e1800c)
[INFO] [stdout] running 1 test
[INFO] [stderr]      Running tests/add.rs (/opt/rustwide/target/debug/deps/add-39ad8acd71cfbca3)
[INFO] [stdout] test deposit ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test add_infix ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test add_newtype ... ok
[INFO] [stdout] test add_infix ... ok
[INFO] [stdout] test add ... ok
[INFO] [stdout] test add_newtype_prim_upcast ... ok
[INFO] [stdout] test add_strings ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests tf
[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 tfl
[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" "40a9fac633989df37f97a471ecf3b78eb2f68623d1456516cd94a7f90ac5be6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "40a9fac633989df37f97a471ecf3b78eb2f68623d1456516cd94a7f90ac5be6b", kill_on_drop: false }`
[INFO] [stdout] 40a9fac633989df37f97a471ecf3b78eb2f68623d1456516cd94a7f90ac5be6b