[INFO] fetching crate gluon_base 0.17.1...
[INFO] testing gluon_base-0.17.1 against beta-2020-10-09 for beta-1.48-1
[INFO] extracting crate gluon_base 0.17.1 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate gluon_base 0.17.1 on toolchain beta-2020-10-09
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate gluon_base 0.17.1
[INFO] finished tweaking crates.io crate gluon_base 0.17.1
[INFO] tweaked toml for crates.io crate gluon_base 0.17.1 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7bdcd641dae6c3b82f3395e71ce7c421b658755f0742c65b5cb3761fd8dc0c68
[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" "7bdcd641dae6c3b82f3395e71ce7c421b658755f0742c65b5cb3761fd8dc0c68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7bdcd641dae6c3b82f3395e71ce7c421b658755f0742c65b5cb3761fd8dc0c68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7bdcd641dae6c3b82f3395e71ce7c421b658755f0742c65b5cb3761fd8dc0c68", kill_on_drop: false }`
[INFO] [stdout] 7bdcd641dae6c3b82f3395e71ce7c421b658755f0742c65b5cb3761fd8dc0c68
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 412ed9046cd73523294f20a2789c0c3a019c7df1cc52b33b7ed04b047227ab8d
[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" "412ed9046cd73523294f20a2789c0c3a019c7df1cc52b33b7ed04b047227ab8d", kill_on_drop: false }`
[INFO] [stderr]    Compiling gluon_codegen v0.17.1
[INFO] [stderr]    Compiling gluon_base v0.17.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: taking a mutable reference to a `const` item
[INFO] [stdout]     --> src/ast.rs:1150:49
[INFO] [stdout]      |
[INFO] [stdout] 1150 |     let function_type = remove_aliases_cow(env, &mut NullInterner, alias_type);
[INFO] [stdout]      |                                                 ^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(const_item_mutation)]` on by default
[INFO] [stdout]      = note: each usage of a `const` item creates a new temporary
[INFO] [stdout]      = note: the mutable reference will refer to this temporary, not the original `const` item
[INFO] [stdout] note: `const` item defined here
[INFO] [stdout]     --> src/types/mod.rs:3825:1
[INFO] [stdout]      |
[INFO] [stdout] 3825 | pub const NullInterner: NullInterner = [];
[INFO] [stdout]      | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: taking a mutable reference to a `const` item
[INFO] [stdout]     --> src/types/mod.rs:1134:9
[INFO] [stdout]      |
[INFO] [stdout] 1134 |         NullInterner.tuple_(symbols, elems)
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: each usage of a `const` item creates a new temporary
[INFO] [stdout]      = note: the mutable reference will refer to this temporary, not the original `const` item
[INFO] [stdout] note: mutable reference created due to call to this method
[INFO] [stdout]     --> src/types/mod.rs:3593:5
[INFO] [stdout]      |
[INFO] [stdout] 3593 | /     fn tuple_<S, I>(&mut self, symbols: &mut S, elems: I) -> Type<Id, T>
[INFO] [stdout] 3594 | |     where
[INFO] [stdout] 3595 | |         S: ?Sized + IdentEnv<Ident = Id>,
[INFO] [stdout] 3596 | |         T::SpannedId: From<Id>,
[INFO] [stdout] 3597 | |         I: IntoIterator<Item = T>,
[INFO] [stdout]      | |__________________________________^
[INFO] [stdout] note: `const` item defined here
[INFO] [stdout]     --> src/types/mod.rs:3825:1
[INFO] [stdout]      |
[INFO] [stdout] 3825 | pub const NullInterner: NullInterner = [];
[INFO] [stdout]      | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: taking a mutable reference to a `const` item
[INFO] [stdout]     --> src/types/mod.rs:3233:9
[INFO] [stdout]      |
[INFO] [stdout] 3233 |         &mut NullInterner
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: each usage of a `const` item creates a new temporary
[INFO] [stdout]      = note: the mutable reference will refer to this temporary, not the original `const` item
[INFO] [stdout] note: `const` item defined here
[INFO] [stdout]     --> src/types/mod.rs:3825:1
[INFO] [stdout]      |
[INFO] [stdout] 3825 | pub const NullInterner: NullInterner = [];
[INFO] [stdout]      | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: taking a mutable reference to a `const` item
[INFO] [stdout]     --> src/types/mod.rs:4270:9
[INFO] [stdout]      |
[INFO] [stdout] 4270 |         &mut NullInterner
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: each usage of a `const` item creates a new temporary
[INFO] [stdout]      = note: the mutable reference will refer to this temporary, not the original `const` item
[INFO] [stdout] note: `const` item defined here
[INFO] [stdout]     --> src/types/mod.rs:3825:1
[INFO] [stdout]      |
[INFO] [stdout] 3825 | pub const NullInterner: NullInterner = [];
[INFO] [stdout]      | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: taking a mutable reference to a `const` item
[INFO] [stdout]     --> src/types/mod.rs:4307:9
[INFO] [stdout]      |
[INFO] [stdout] 4307 |         &mut NullInterner
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: each usage of a `const` item creates a new temporary
[INFO] [stdout]      = note: the mutable reference will refer to this temporary, not the original `const` item
[INFO] [stdout] note: `const` item defined here
[INFO] [stdout]     --> src/types/mod.rs:3825:1
[INFO] [stdout]      |
[INFO] [stdout] 3825 | pub const NullInterner: NullInterner = [];
[INFO] [stdout]      | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.42s
[INFO] running `Command { std: "docker" "inspect" "412ed9046cd73523294f20a2789c0c3a019c7df1cc52b33b7ed04b047227ab8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "412ed9046cd73523294f20a2789c0c3a019c7df1cc52b33b7ed04b047227ab8d", kill_on_drop: false }`
[INFO] [stdout] 412ed9046cd73523294f20a2789c0c3a019c7df1cc52b33b7ed04b047227ab8d
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "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] 06800d843c91fc4a5e2ae2aa3ef502e38881705576d1aad4e0bf7861bfd8194f
[INFO] running `Command { std: "docker" "start" "-a" "06800d843c91fc4a5e2ae2aa3ef502e38881705576d1aad4e0bf7861bfd8194f", kill_on_drop: false }`
[INFO] [stdout] warning: taking a mutable reference to a `const` item
[INFO] [stdout]     --> src/ast.rs:1150:49
[INFO] [stdout]      |
[INFO] [stdout] 1150 |     let function_type = remove_aliases_cow(env, &mut NullInterner, alias_type);
[INFO] [stdout]      |                                                 ^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(const_item_mutation)]` on by default
[INFO] [stdout]      = note: each usage of a `const` item creates a new temporary
[INFO] [stdout]      = note: the mutable reference will refer to this temporary, not the original `const` item
[INFO] [stdout] note: `const` item defined here
[INFO] [stdout]     --> src/types/mod.rs:3825:1
[INFO] [stdout]      |
[INFO] [stdout] 3825 | pub const NullInterner: NullInterner = [];
[INFO] [stdout]      | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: taking a mutable reference to a `const` item
[INFO] [stdout]     --> src/types/mod.rs:1134:9
[INFO] [stdout]      |
[INFO] [stdout] 1134 |         NullInterner.tuple_(symbols, elems)
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: each usage of a `const` item creates a new temporary
[INFO] [stdout]      = note: the mutable reference will refer to this temporary, not the original `const` item
[INFO] [stdout] note: mutable reference created due to call to this method
[INFO] [stdout]     --> src/types/mod.rs:3593:5
[INFO] [stdout]      |
[INFO] [stdout] 3593 | /     fn tuple_<S, I>(&mut self, symbols: &mut S, elems: I) -> Type<Id, T>
[INFO] [stdout] 3594 | |     where
[INFO] [stdout] 3595 | |         S: ?Sized + IdentEnv<Ident = Id>,
[INFO] [stdout] 3596 | |         T::SpannedId: From<Id>,
[INFO] [stdout] 3597 | |         I: IntoIterator<Item = T>,
[INFO] [stdout]      | |__________________________________^
[INFO] [stdout] note: `const` item defined here
[INFO] [stdout]     --> src/types/mod.rs:3825:1
[INFO] [stdout]      |
[INFO] [stdout] 3825 | pub const NullInterner: NullInterner = [];
[INFO] [stdout]      | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: taking a mutable reference to a `const` item
[INFO] [stdout]     --> src/types/mod.rs:3233:9
[INFO] [stdout]      |
[INFO] [stdout] 3233 |         &mut NullInterner
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: each usage of a `const` item creates a new temporary
[INFO] [stdout]      = note: the mutable reference will refer to this temporary, not the original `const` item
[INFO] [stdout] note: `const` item defined here
[INFO] [stdout]     --> src/types/mod.rs:3825:1
[INFO] [stdout]      |
[INFO] [stdout] 3825 | pub const NullInterner: NullInterner = [];
[INFO] [stdout]      | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: taking a mutable reference to a `const` item
[INFO] [stdout]     --> src/types/mod.rs:4270:9
[INFO] [stdout]      |
[INFO] [stdout] 4270 |         &mut NullInterner
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: each usage of a `const` item creates a new temporary
[INFO] [stdout]      = note: the mutable reference will refer to this temporary, not the original `const` item
[INFO] [stdout] note: `const` item defined here
[INFO] [stdout]     --> src/types/mod.rs:3825:1
[INFO] [stdout]      |
[INFO] [stdout] 3825 | pub const NullInterner: NullInterner = [];
[INFO] [stdout]      | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: taking a mutable reference to a `const` item
[INFO] [stdout]     --> src/types/mod.rs:4307:9
[INFO] [stdout]      |
[INFO] [stdout] 4307 |         &mut NullInterner
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: each usage of a `const` item creates a new temporary
[INFO] [stdout]      = note: the mutable reference will refer to this temporary, not the original `const` item
[INFO] [stdout] note: `const` item defined here
[INFO] [stdout]     --> src/types/mod.rs:3825:1
[INFO] [stdout]      |
[INFO] [stdout] 3825 | pub const NullInterner: NullInterner = [];
[INFO] [stdout]      | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling gluon_base v0.17.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: taking a mutable reference to a `const` item
[INFO] [stdout]     --> tests/types.rs:468:13
[INFO] [stdout]      |
[INFO] [stdout] 468  |             &mut NullInterner,
[INFO] [stdout]      |             ^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(const_item_mutation)]` on by default
[INFO] [stdout]      = note: each usage of a `const` item creates a new temporary
[INFO] [stdout]      = note: the mutable reference will refer to this temporary, not the original `const` item
[INFO] [stdout] note: `const` item defined here
[INFO] [stdout]     --> /opt/rustwide/workdir/src/types/mod.rs:3825:1
[INFO] [stdout]      |
[INFO] [stdout] 3825 | pub const NullInterner: NullInterner = [];
[INFO] [stdout]      | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: taking a mutable reference to a `const` item
[INFO] [stdout]     --> src/ast.rs:1150:49
[INFO] [stdout]      |
[INFO] [stdout] 1150 |     let function_type = remove_aliases_cow(env, &mut NullInterner, alias_type);
[INFO] [stdout]      |                                                 ^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(const_item_mutation)]` on by default
[INFO] [stdout]      = note: each usage of a `const` item creates a new temporary
[INFO] [stdout]      = note: the mutable reference will refer to this temporary, not the original `const` item
[INFO] [stdout] note: `const` item defined here
[INFO] [stdout]     --> src/types/mod.rs:3825:1
[INFO] [stdout]      |
[INFO] [stdout] 3825 | pub const NullInterner: NullInterner = [];
[INFO] [stdout]      | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: taking a mutable reference to a `const` item
[INFO] [stdout]     --> src/types/mod.rs:1134:9
[INFO] [stdout]      |
[INFO] [stdout] 1134 |         NullInterner.tuple_(symbols, elems)
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: each usage of a `const` item creates a new temporary
[INFO] [stdout]      = note: the mutable reference will refer to this temporary, not the original `const` item
[INFO] [stdout] note: mutable reference created due to call to this method
[INFO] [stdout]     --> src/types/mod.rs:3593:5
[INFO] [stdout]      |
[INFO] [stdout] 3593 | /     fn tuple_<S, I>(&mut self, symbols: &mut S, elems: I) -> Type<Id, T>
[INFO] [stdout] 3594 | |     where
[INFO] [stdout] 3595 | |         S: ?Sized + IdentEnv<Ident = Id>,
[INFO] [stdout] 3596 | |         T::SpannedId: From<Id>,
[INFO] [stdout] 3597 | |         I: IntoIterator<Item = T>,
[INFO] [stdout]      | |__________________________________^
[INFO] [stdout] note: `const` item defined here
[INFO] [stdout]     --> src/types/mod.rs:3825:1
[INFO] [stdout]      |
[INFO] [stdout] 3825 | pub const NullInterner: NullInterner = [];
[INFO] [stdout]      | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: taking a mutable reference to a `const` item
[INFO] [stdout]     --> src/types/mod.rs:3233:9
[INFO] [stdout]      |
[INFO] [stdout] 3233 |         &mut NullInterner
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: each usage of a `const` item creates a new temporary
[INFO] [stdout]      = note: the mutable reference will refer to this temporary, not the original `const` item
[INFO] [stdout] note: `const` item defined here
[INFO] [stdout]     --> src/types/mod.rs:3825:1
[INFO] [stdout]      |
[INFO] [stdout] 3825 | pub const NullInterner: NullInterner = [];
[INFO] [stdout]      | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: taking a mutable reference to a `const` item
[INFO] [stdout]     --> src/types/mod.rs:4270:9
[INFO] [stdout]      |
[INFO] [stdout] 4270 |         &mut NullInterner
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: each usage of a `const` item creates a new temporary
[INFO] [stdout]      = note: the mutable reference will refer to this temporary, not the original `const` item
[INFO] [stdout] note: `const` item defined here
[INFO] [stdout]     --> src/types/mod.rs:3825:1
[INFO] [stdout]      |
[INFO] [stdout] 3825 | pub const NullInterner: NullInterner = [];
[INFO] [stdout]      | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: taking a mutable reference to a `const` item
[INFO] [stdout]     --> src/types/mod.rs:4307:9
[INFO] [stdout]      |
[INFO] [stdout] 4307 |         &mut NullInterner
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: each usage of a `const` item creates a new temporary
[INFO] [stdout]      = note: the mutable reference will refer to this temporary, not the original `const` item
[INFO] [stdout] note: `const` item defined here
[INFO] [stdout]     --> src/types/mod.rs:3825:1
[INFO] [stdout]      |
[INFO] [stdout] 3825 | pub const NullInterner: NullInterner = [];
[INFO] [stdout]      | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 11.74s
[INFO] running `Command { std: "docker" "inspect" "06800d843c91fc4a5e2ae2aa3ef502e38881705576d1aad4e0bf7861bfd8194f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06800d843c91fc4a5e2ae2aa3ef502e38881705576d1aad4e0bf7861bfd8194f", kill_on_drop: false }`
[INFO] [stdout] 06800d843c91fc4a5e2ae2aa3ef502e38881705576d1aad4e0bf7861bfd8194f
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "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] 5a504db66cc21ff942205da38dbb48339b2f3622f590119e7178d8dd813daae5
[INFO] running `Command { std: "docker" "start" "-a" "5a504db66cc21ff942205da38dbb48339b2f3622f590119e7178d8dd813daae5", kill_on_drop: false }`
[INFO] [stderr] warning: taking a mutable reference to a `const` item
[INFO] [stderr]     --> src/ast.rs:1150:49
[INFO] [stderr]      |
[INFO] [stderr] 1150 |     let function_type = remove_aliases_cow(env, &mut NullInterner, alias_type);
[INFO] [stderr]      |                                                 ^^^^^^^^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(const_item_mutation)]` on by default
[INFO] [stderr]      = note: each usage of a `const` item creates a new temporary
[INFO] [stderr]      = note: the mutable reference will refer to this temporary, not the original `const` item
[INFO] [stderr] note: `const` item defined here
[INFO] [stderr]     --> src/types/mod.rs:3825:1
[INFO] [stderr]      |
[INFO] [stderr] 3825 | pub const NullInterner: NullInterner = [];
[INFO] [stderr]      | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: taking a mutable reference to a `const` item
[INFO] [stderr]     --> src/types/mod.rs:1134:9
[INFO] [stderr]      |
[INFO] [stderr] 1134 |         NullInterner.tuple_(symbols, elems)
[INFO] [stderr]      |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: each usage of a `const` item creates a new temporary
[INFO] [stderr]      = note: the mutable reference will refer to this temporary, not the original `const` item
[INFO] [stderr] note: mutable reference created due to call to this method
[INFO] [stderr]     --> src/types/mod.rs:3593:5
[INFO] [stderr]      |
[INFO] [stderr] 3593 | /     fn tuple_<S, I>(&mut self, symbols: &mut S, elems: I) -> Type<Id, T>
[INFO] [stderr] 3594 | |     where
[INFO] [stderr] 3595 | |         S: ?Sized + IdentEnv<Ident = Id>,
[INFO] [stderr] 3596 | |         T::SpannedId: From<Id>,
[INFO] [stderr] 3597 | |         I: IntoIterator<Item = T>,
[INFO] [stderr]      | |__________________________________^
[INFO] [stderr] note: `const` item defined here
[INFO] [stderr]     --> src/types/mod.rs:3825:1
[INFO] [stderr]      |
[INFO] [stderr] 3825 | pub const NullInterner: NullInterner = [];
[INFO] [stderr]      | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: taking a mutable reference to a `const` item
[INFO] [stderr]     --> src/types/mod.rs:3233:9
[INFO] [stderr]      |
[INFO] [stderr] 3233 |         &mut NullInterner
[INFO] [stderr]      |         ^^^^^^^^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: each usage of a `const` item creates a new temporary
[INFO] [stderr]      = note: the mutable reference will refer to this temporary, not the original `const` item
[INFO] [stderr] note: `const` item defined here
[INFO] [stderr]     --> src/types/mod.rs:3825:1
[INFO] [stderr]      |
[INFO] [stderr] 3825 | pub const NullInterner: NullInterner = [];
[INFO] [stderr]      | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: taking a mutable reference to a `const` item
[INFO] [stderr]     --> src/types/mod.rs:4270:9
[INFO] [stderr]      |
[INFO] [stderr] 4270 |         &mut NullInterner
[INFO] [stderr]      |         ^^^^^^^^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: each usage of a `const` item creates a new temporary
[INFO] [stderr]      = note: the mutable reference will refer to this temporary, not the original `const` item
[INFO] [stderr] note: `const` item defined here
[INFO] [stderr]     --> src/types/mod.rs:3825:1
[INFO] [stderr]      |
[INFO] [stderr] 3825 | pub const NullInterner: NullInterner = [];
[INFO] [stderr]      | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: taking a mutable reference to a `const` item
[INFO] [stderr]     --> src/types/mod.rs:4307:9
[INFO] [stderr]      |
[INFO] [stderr] 4307 |         &mut NullInterner
[INFO] [stderr]      |         ^^^^^^^^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: each usage of a `const` item creates a new temporary
[INFO] [stderr]      = note: the mutable reference will refer to this temporary, not the original `const` item
[INFO] [stderr] note: `const` item defined here
[INFO] [stderr]     --> src/types/mod.rs:3825:1
[INFO] [stderr]      |
[INFO] [stderr] 3825 | pub const NullInterner: NullInterner = [];
[INFO] [stderr]      | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 5 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: taking a mutable reference to a `const` item
[INFO] [stderr]     --> tests/types.rs:468:13
[INFO] [stderr]      |
[INFO] [stderr] 468  |             &mut NullInterner,
[INFO] [stderr]      |             ^^^^^^^^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(const_item_mutation)]` on by default
[INFO] [stderr]      = note: each usage of a `const` item creates a new temporary
[INFO] [stderr]      = note: the mutable reference will refer to this temporary, not the original `const` item
[INFO] [stderr] note: `const` item defined here
[INFO] [stderr]     --> /opt/rustwide/workdir/src/types/mod.rs:3825:1
[INFO] [stderr]      |
[INFO] [stderr] 3825 | pub const NullInterner: NullInterner = [];
[INFO] [stderr]      | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: taking a mutable reference to a `const` item
[INFO] [stderr]     --> src/ast.rs:1150:49
[INFO] [stderr]      |
[INFO] [stderr] 1150 |     let function_type = remove_aliases_cow(env, &mut NullInterner, alias_type);
[INFO] [stderr]      |                                                 ^^^^^^^^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(const_item_mutation)]` on by default
[INFO] [stderr]      = note: each usage of a `const` item creates a new temporary
[INFO] [stderr]      = note: the mutable reference will refer to this temporary, not the original `const` item
[INFO] [stderr] note: `const` item defined here
[INFO] [stderr]     --> src/types/mod.rs:3825:1
[INFO] [stderr]      |
[INFO] [stderr] 3825 | pub const NullInterner: NullInterner = [];
[INFO] [stderr]      | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: taking a mutable reference to a `const` item
[INFO] [stderr]     --> src/types/mod.rs:1134:9
[INFO] [stderr]      |
[INFO] [stderr] 1134 |         NullInterner.tuple_(symbols, elems)
[INFO] [stderr]      |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: each usage of a `const` item creates a new temporary
[INFO] [stderr]      = note: the mutable reference will refer to this temporary, not the original `const` item
[INFO] [stderr] note: mutable reference created due to call to this method
[INFO] [stderr]     --> src/types/mod.rs:3593:5
[INFO] [stderr]      |
[INFO] [stderr] 3593 | /     fn tuple_<S, I>(&mut self, symbols: &mut S, elems: I) -> Type<Id, T>
[INFO] [stderr] 3594 | |     where
[INFO] [stderr] 3595 | |         S: ?Sized + IdentEnv<Ident = Id>,
[INFO] [stderr] 3596 | |         T::SpannedId: From<Id>,
[INFO] [stderr] 3597 | |         I: IntoIterator<Item = T>,
[INFO] [stderr]      | |__________________________________^
[INFO] [stderr] note: `const` item defined here
[INFO] [stderr]     --> src/types/mod.rs:3825:1
[INFO] [stderr]      |
[INFO] [stderr] 3825 | pub const NullInterner: NullInterner = [];
[INFO] [stderr]      | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: taking a mutable reference to a `const` item
[INFO] [stderr]     --> src/types/mod.rs:3233:9
[INFO] [stderr]      |
[INFO] [stderr] 3233 |         &mut NullInterner
[INFO] [stderr]      |         ^^^^^^^^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: each usage of a `const` item creates a new temporary
[INFO] [stderr]      = note: the mutable reference will refer to this temporary, not the original `const` item
[INFO] [stderr] note: `const` item defined here
[INFO] [stderr]     --> src/types/mod.rs:3825:1
[INFO] [stderr]      |
[INFO] [stderr] 3825 | pub const NullInterner: NullInterner = [];
[INFO] [stderr]      | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: taking a mutable reference to a `const` item
[INFO] [stderr]     --> src/types/mod.rs:4270:9
[INFO] [stderr]      |
[INFO] [stderr] 4270 |         &mut NullInterner
[INFO] [stderr]      |         ^^^^^^^^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: each usage of a `const` item creates a new temporary
[INFO] [stderr]      = note: the mutable reference will refer to this temporary, not the original `const` item
[INFO] [stderr] note: `const` item defined here
[INFO] [stderr]     --> src/types/mod.rs:3825:1
[INFO] [stderr]      |
[INFO] [stderr] 3825 | pub const NullInterner: NullInterner = [];
[INFO] [stderr]      | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: taking a mutable reference to a `const` item
[INFO] [stderr]     --> src/types/mod.rs:4307:9
[INFO] [stderr]      |
[INFO] [stderr] 4307 |         &mut NullInterner
[INFO] [stderr]      |         ^^^^^^^^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: each usage of a `const` item creates a new temporary
[INFO] [stderr]      = note: the mutable reference will refer to this temporary, not the original `const` item
[INFO] [stderr] note: `const` item defined here
[INFO] [stderr]     --> src/types/mod.rs:3825:1
[INFO] [stderr]      |
[INFO] [stderr] 3825 | pub const NullInterner: NullInterner = [];
[INFO] [stderr]      | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 5 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.21s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/gluon_base-4c6eb561080ee98e
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test scoped_map::tests::remove ... ok
[INFO] [stdout] test scoped_map::tests::test ... ok
[INFO] [stdout] test source::tests::empty_comment_iter ... ok
[INFO] [stdout] test fixed::tests::truncate_buffer ... ok
[INFO] [stdout] test tests::filename_to_module_test ... ok
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/compiletest-3ad30d1b1cda233e
[INFO] [stdout] test types::tests::walk_move_types_test ... ok
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/types-89a74b5be0c7529a
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[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
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 19 tests
[INFO] [stdout] test break_record ... ok
[INFO] [stdout] test show_record_multifield ... ok
[INFO] [stdout] test show_variant ... ok
[INFO] [stdout] test show_kind ... ok
[INFO] [stdout] test show_record_empty ... ok
[INFO] [stdout] test take_implicits_into_account_on_infix_type ... ok
[INFO] [stdout] test forall_hides_generic_flag ... ok
[INFO] [stdout] test resolve_partially_applied_alias ... ok
[INFO] [stdout] test show_polymorphic_record ... ok
[INFO] [stdout] test show_forall ... ok
[INFO] [stdout] test show_polymorphic_record_associated_type ... ok
[INFO] [stdout] test show_record_singleton ... ok
[INFO] [stdout] test show_record_singleton_polymorphic ... ok
[INFO] [stdout] test tuple ... ok
[INFO] [stdout] test show_record_multiline ... ok
[INFO] [stdout] test show_function ... ok
[INFO] [stdout] test show_record_multi_line_nested ... ok
[INFO] [stderr]    Doc-tests gluon_base
[INFO] [stdout] test show_record_long_type ... ok
[INFO] [stdout] test show_record_filtered ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 19 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test src/symbol.rs - symbol::SymbolModule::scoped_symbol (line 732) ... ok
[INFO] [stdout] test src/pos.rs - pos::Span<I>::between (line 268) ... ok
[INFO] [stdout] test src/pos.rs - pos::Span<I>::new (line 69) ... ok
[INFO] [stdout] test src/pos.rs - pos::Span<I>::new (line 79) ... ok
[INFO] [stdout] test src/pos.rs - pos::Span<I>::with_start (line 143) ... ok
[INFO] [stdout] test src/pos.rs - pos::Span<I>::until (line 288) ... ok
[INFO] [stdout] test src/pos.rs - pos::Span<I>::containment (line 192) ... ok
[INFO] [stdout] test src/pos.rs - pos::Span<I>::contains (line 171) ... ok
[INFO] [stdout] test src/pos.rs - pos::Span<I>::with_end (line 157) ... ok
[INFO] [stdout] test src/pos.rs - pos::Span<I>::containment_exclusive (line 217) ... ok
[INFO] [stdout] test src/pos.rs - pos::Span<I>::to (line 245) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "5a504db66cc21ff942205da38dbb48339b2f3622f590119e7178d8dd813daae5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a504db66cc21ff942205da38dbb48339b2f3622f590119e7178d8dd813daae5", kill_on_drop: false }`
[INFO] [stdout] 5a504db66cc21ff942205da38dbb48339b2f3622f590119e7178d8dd813daae5
