[INFO] fetching crate polytype 6.2.1...
[INFO] testing polytype-6.2.1 against beta-2022-02-22 for beta-1.60-1
[INFO] extracting crate polytype 6.2.1 into /workspace/builds/worker-83/source
[INFO] validating manifest of crates.io crate polytype 6.2.1 on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate polytype 6.2.1
[INFO] finished tweaking crates.io crate polytype 6.2.1
[INFO] tweaked toml for crates.io crate polytype 6.2.1 written to /workspace/builds/worker-83/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded nom v4.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cb7d18aa5860be4b16bf6e4e97bbabffe5e1c1d6afaaa07e5f57f63cd8f38144
[INFO] running `Command { std: "docker" "start" "-a" "cb7d18aa5860be4b16bf6e4e97bbabffe5e1c1d6afaaa07e5f57f63cd8f38144", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cb7d18aa5860be4b16bf6e4e97bbabffe5e1c1d6afaaa07e5f57f63cd8f38144", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb7d18aa5860be4b16bf6e4e97bbabffe5e1c1d6afaaa07e5f57f63cd8f38144", kill_on_drop: false }`
[INFO] [stdout] cb7d18aa5860be4b16bf6e4e97bbabffe5e1c1d6afaaa07e5f57f63cd8f38144
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1c42852fe3b41e9fc2c1e39ae30ecb55d16e771031e8bbf6bdb1505278a2e86a
[INFO] running `Command { std: "docker" "start" "-a" "1c42852fe3b41e9fc2c1e39ae30ecb55d16e771031e8bbf6bdb1505278a2e86a", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling indexmap v1.8.0
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling nom v4.1.1
[INFO] [stderr]    Compiling polytype v6.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.38s
[INFO] running `Command { std: "docker" "inspect" "1c42852fe3b41e9fc2c1e39ae30ecb55d16e771031e8bbf6bdb1505278a2e86a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c42852fe3b41e9fc2c1e39ae30ecb55d16e771031e8bbf6bdb1505278a2e86a", kill_on_drop: false }`
[INFO] [stdout] 1c42852fe3b41e9fc2c1e39ae30ecb55d16e771031e8bbf6bdb1505278a2e86a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a46c9a2007b90f362f7dc04926c76ddc491cf3d91a227505af72805af3e5913c
[INFO] running `Command { std: "docker" "start" "-a" "a46c9a2007b90f362f7dc04926c76ddc491cf3d91a227505af72805af3e5913c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling polytype v6.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.58s
[INFO] running `Command { std: "docker" "inspect" "a46c9a2007b90f362f7dc04926c76ddc491cf3d91a227505af72805af3e5913c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a46c9a2007b90f362f7dc04926c76ddc491cf3d91a227505af72805af3e5913c", kill_on_drop: false }`
[INFO] [stdout] a46c9a2007b90f362f7dc04926c76ddc491cf3d91a227505af72805af3e5913c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4efc12a1ff40a6f8fe7805cf4d7926565eefb137125133824d630ce0d841dd70
[INFO] running `Command { std: "docker" "start" "-a" "4efc12a1ff40a6f8fe7805cf4d7926565eefb137125133824d630ce0d841dd70", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/polytype-67059c01eedd2ea7)
[INFO] [stdout] 
[INFO] [stderr]      Running tests/tests.rs (/opt/rustwide/target/debug/deps/tests-153e967c338dd79b)
[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 13 tests
[INFO] [stdout] test test_arrow_methods ... ok
[INFO] [stdout] test test_merge_with_sacreds ... ok
[INFO] [stdout] test test_merge_no_sacreds ... ok
[INFO] [stdout] test test_ptp_macro ... ok
[INFO] [stdout] test test_tp_from_vec ... ok
[INFO] [stdout] test test_tp_from_vecdeque ... ok
[INFO] [stdout] test test_unify_both_sides_polymorphic_occurs ... ok
[INFO] [stdout] test test_parse ... ok
[INFO] [stdout] test test_tp_macro ... ok
[INFO] [stdout] test test_unify_nonstring_name ... ok
[INFO] [stdout] test test_unify_both_sides_polymorphic ... ok
[INFO] [stdout] test test_unify_one_side_polymorphic ... ok
[INFO] [stderr]    Doc-tests polytype
[INFO] [stdout] test test_unify_one_side_polymorphic_fail ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 13 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 45 tests
[INFO] [stdout] test src/macros.rs - macros::ptp (line 119) ... ignored
[INFO] [stdout] test src/macros.rs - macros::tp (line 5) ... ignored
[INFO] [stdout] test src/lib.rs - Name (line 130) ... ok
[INFO] [stdout] test src/macros.rs - macros::ptp (line 185) ... ok
[INFO] [stdout] test src/lib.rs - Name (line 122) ... ok
[INFO] [stdout] test src/macros.rs - macros::tp (line 31) ... ok
[INFO] [stdout] test src/macros.rs - macros::tp (line 69) ... ok
[INFO] [stdout] test src/lib.rs - Infer (line 195) ... ok
[INFO] [stdout] test src/context.rs - context::Context<N>::confine (line 295) ... FAILED
[INFO] [stdout] test src/lib.rs - Infer (line 247) ... FAILED
[INFO] [stdout] test src/types.rs - types::Type<N>::apply (line 409) ... FAILED
[INFO] [stdout] test src/macros.rs - macros::tp (line 53) ... ok
[INFO] [stdout] test src/types.rs - types::Type<N>::generalize (line 483) ... FAILED
[INFO] [stdout] test src/types.rs - types::Type<N>::as_arrow (line 273) ... ok
[INFO] [stdout] test src/context.rs - context::Context<N>::merge (line 335) ... FAILED
[INFO] [stdout] test src/context.rs - context::Context<N>::merge (line 362) ... FAILED
[INFO] [stdout] test src/lib.rs - (line 44) ... FAILED
[INFO] [stdout] test src/context.rs - context::Context<N>::unify (line 174) ... FAILED
[INFO] [stdout] test src/lib.rs - Infer (line 210) ... FAILED
[INFO] [stdout] test src/lib.rs - (line 18) ... FAILED
[INFO] [stdout] test src/context.rs - context::Context<N>::new_variable (line 146) ... FAILED
[INFO] [stdout] test src/context.rs - context::Context<N>::unify (line 190) ... FAILED
[INFO] [stdout] test src/types.rs - types::Type<N>::arrow (line 261) ... ok
[INFO] [stdout] test src/macros.rs - macros::tp (line 42) ... ok
[INFO] [stdout] test src/types.rs - types::TypeSchema<N>::bound_vars (line 56) ... ok
[INFO] [stdout] test src/types.rs - types::TypeSchema<N>::is_bound (line 39) ... ok
[INFO] [stdout] test src/types.rs - types::Type::Variable (line 244) ... ok
[INFO] [stdout] test src/types.rs - types::Type::Constructed (line 188) ... ok
[INFO] [stdout] test src/types.rs - types::Type::Constructed (line 196) ... ok
[INFO] [stdout] test src/macros.rs - macros::ptp (line 141) ... ok
[INFO] [stdout] test src/macros.rs - macros::ptp (line 159) ... ok
[INFO] [stdout] test src/types.rs - types::Type<N>::args (line 324) ... ok
[INFO] [stdout] test src/types.rs - types::Type::Constructed (line 205) ... ok
[INFO] [stdout] test src/macros.rs - macros::tp (line 86) ... ok
[INFO] [stdout] test src/types.rs - types::Type<N>::substitute (line 548) ... ok
[INFO] [stdout] test src/types.rs - types::Type<N>::returns (line 378) ... ok
[INFO] [stdout] test src/types.rs - types::Type::Constructed (line 215) ... ok
[INFO] [stdout] test src/types.rs - types::Type<N>::vars (line 518) ... ok
[INFO] [stdout] test src/context.rs - context::Context<N>::unify (line 210) ... ok
[INFO] [stdout] test src/types.rs - types::Type::Variable (line 235) ... ok
[INFO] [stdout] test src/context.rs - context::Context<N>::clean (line 96) ... ok
[INFO] [stdout] test src/parser.rs - parser::Type<N>::parse (line 146) ... ok
[INFO] [stdout] test src/types.rs - types::TypeSchema<N>::instantiate (line 108) ... ok
[INFO] [stdout] test src/parser.rs - parser::TypeSchema<N>::parse (line 121) ... ok
[INFO] [stdout] test src/types.rs - types::TypeSchema<N>::free_vars (line 77) ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/context.rs - context::Context<N>::confine (line 295) stdout ----
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - Infer (line 247) stdout ----
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/types.rs - types::Type<N>::apply (line 409) stdout ----
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/types.rs - types::Type<N>::generalize (line 483) stdout ----
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/context.rs - context::Context<N>::merge (line 335) stdout ----
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/context.rs - context::Context<N>::merge (line 362) stdout ----
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - (line 44) stdout ----
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/context.rs - context::Context<N>::unify (line 174) stdout ----
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - Infer (line 210) stdout ----
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - (line 18) stdout ----
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/context.rs - context::Context<N>::new_variable (line 146) stdout ----
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/context.rs - context::Context<N>::unify (line 190) stdout ----
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/context.rs - context::Context<N>::confine (line 295)
[INFO] [stdout]     src/context.rs - context::Context<N>::merge (line 335)
[INFO] [stdout]     src/context.rs - context::Context<N>::merge (line 362)
[INFO] [stdout]     src/context.rs - context::Context<N>::new_variable (line 146)
[INFO] [stdout]     src/context.rs - context::Context<N>::unify (line 174)
[INFO] [stdout]     src/context.rs - context::Context<N>::unify (line 190)
[INFO] [stdout]     src/lib.rs - (line 18)
[INFO] [stdout]     src/lib.rs - (line 44)
[INFO] [stdout]     src/lib.rs - Infer (line 210)
[INFO] [stdout]     src/lib.rs - Infer (line 247)
[INFO] [stdout]     src/types.rs - types::Type<N>::apply (line 409)
[INFO] [stdout]     src/types.rs - types::Type<N>::generalize (line 483)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 31 passed; 12 failed; 2 ignored; 0 measured; 0 filtered out; finished in 31.12s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "4efc12a1ff40a6f8fe7805cf4d7926565eefb137125133824d630ce0d841dd70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4efc12a1ff40a6f8fe7805cf4d7926565eefb137125133824d630ce0d841dd70", kill_on_drop: false }`
[INFO] [stdout] 4efc12a1ff40a6f8fe7805cf4d7926565eefb137125133824d630ce0d841dd70