[INFO] fetching crate demi 0.1.3...
[INFO] testing demi-0.1.3 against beta-2022-02-22 for beta-1.60-1
[INFO] extracting crate demi 0.1.3 into /workspace/builds/worker-62/source
[INFO] validating manifest of crates.io crate demi 0.1.3 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 demi 0.1.3
[INFO] finished tweaking crates.io crate demi 0.1.3
[INFO] tweaked toml for crates.io crate demi 0.1.3 written to /workspace/builds/worker-62/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] [stderr]     Blocking waiting for file lock on package cache
[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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-62/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-62/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] e55c2ea746eb387bf1fc2da19daa56b636416b6f11573db4929f7e526e02a23d
[INFO] running `Command { std: "docker" "start" "-a" "e55c2ea746eb387bf1fc2da19daa56b636416b6f11573db4929f7e526e02a23d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e55c2ea746eb387bf1fc2da19daa56b636416b6f11573db4929f7e526e02a23d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e55c2ea746eb387bf1fc2da19daa56b636416b6f11573db4929f7e526e02a23d", kill_on_drop: false }`
[INFO] [stdout] e55c2ea746eb387bf1fc2da19daa56b636416b6f11573db4929f7e526e02a23d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-62/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-62/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] 7251604f16c9cda5e180ac5e05cc7ae62951ea23e60ef1968036008da5c73f1b
[INFO] running `Command { std: "docker" "start" "-a" "7251604f16c9cda5e180ac5e05cc7ae62951ea23e60ef1968036008da5c73f1b", kill_on_drop: false }`
[INFO] [stderr]    Compiling demi v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: private type `Keyword` in public interface (error E0446)
[INFO] [stdout]   --> src/tokenizer.rs:14:13
[INFO] [stdout]    |
[INFO] [stdout] 14 |     Keyword(Keyword),
[INFO] [stdout]    |             ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(private_in_public)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: private type `Type` in public interface (error E0446)
[INFO] [stdout]   --> src/tokenizer.rs:15:10
[INFO] [stdout]    |
[INFO] [stdout] 15 |     Type(Type),
[INFO] [stdout]    |          ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Constant`
[INFO] [stdout]  --> src/tokenizer.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     Constant,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `Keyword` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]  --> src/tokenizer.rs:1:10
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[derive(Debug, PartialEq)]
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout]   = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Integer`
[INFO] [stdout]  --> src/tokenizer.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     Integer,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] note: `Type` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]  --> src/tokenizer.rs:6:10
[INFO] [stdout]   |
[INFO] [stdout] 6 | #[derive(Debug, PartialEq)]
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout]   = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Identifier`
[INFO] [stdout]   --> src/tokenizer.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     Identifier(&'a str),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `Token` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/tokenizer.rs:11:10
[INFO] [stdout]    |
[INFO] [stdout] 11 | #[derive(Debug, PartialEq)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Keyword`
[INFO] [stdout]   --> src/tokenizer.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     Keyword(Keyword),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `Token` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/tokenizer.rs:11:10
[INFO] [stdout]    |
[INFO] [stdout] 11 | #[derive(Debug, PartialEq)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Type`
[INFO] [stdout]   --> src/tokenizer.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     Type(Type),
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `Token` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/tokenizer.rs:11:10
[INFO] [stdout]    |
[INFO] [stdout] 11 | #[derive(Debug, PartialEq)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.24s
[INFO] running `Command { std: "docker" "inspect" "7251604f16c9cda5e180ac5e05cc7ae62951ea23e60ef1968036008da5c73f1b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7251604f16c9cda5e180ac5e05cc7ae62951ea23e60ef1968036008da5c73f1b", kill_on_drop: false }`
[INFO] [stdout] 7251604f16c9cda5e180ac5e05cc7ae62951ea23e60ef1968036008da5c73f1b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-62/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-62/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] 5f308a102929186ca99e5273efe72d861421b6195cd10a77a7a2abb27a64a738
[INFO] running `Command { std: "docker" "start" "-a" "5f308a102929186ca99e5273efe72d861421b6195cd10a77a7a2abb27a64a738", kill_on_drop: false }`
[INFO] [stdout] warning: private type `Keyword` in public interface (error E0446)
[INFO] [stdout]   --> src/tokenizer.rs:14:13
[INFO] [stdout]    |
[INFO] [stdout] 14 |     Keyword(Keyword),
[INFO] [stdout]    |             ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(private_in_public)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: private type `Type` in public interface (error E0446)
[INFO] [stdout]   --> src/tokenizer.rs:15:10
[INFO] [stdout]    |
[INFO] [stdout] 15 |     Type(Type),
[INFO] [stdout]    |          ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Constant`
[INFO] [stdout]  --> src/tokenizer.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     Constant,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `Keyword` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]  --> src/tokenizer.rs:1:10
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[derive(Debug, PartialEq)]
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout]   = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Integer`
[INFO] [stdout]  --> src/tokenizer.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     Integer,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] note: `Type` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]  --> src/tokenizer.rs:6:10
[INFO] [stdout]   |
[INFO] [stdout] 6 | #[derive(Debug, PartialEq)]
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout]   = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling demi v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant is never constructed: `Identifier`
[INFO] [stdout]   --> src/tokenizer.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     Identifier(&'a str),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `Token` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/tokenizer.rs:11:10
[INFO] [stdout]    |
[INFO] [stdout] 11 | #[derive(Debug, PartialEq)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Keyword`
[INFO] [stdout]   --> src/tokenizer.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     Keyword(Keyword),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `Token` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/tokenizer.rs:11:10
[INFO] [stdout]    |
[INFO] [stdout] 11 | #[derive(Debug, PartialEq)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Type`
[INFO] [stdout]   --> src/tokenizer.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     Type(Type),
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `Token` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/tokenizer.rs:11:10
[INFO] [stdout]    |
[INFO] [stdout] 11 | #[derive(Debug, PartialEq)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: private type `Keyword` in public interface (error E0446)
[INFO] [stdout]   --> src/tokenizer.rs:14:13
[INFO] [stdout]    |
[INFO] [stdout] 14 |     Keyword(Keyword),
[INFO] [stdout]    |             ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(private_in_public)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: private type `Type` in public interface (error E0446)
[INFO] [stdout]   --> src/tokenizer.rs:15:10
[INFO] [stdout]    |
[INFO] [stdout] 15 |     Type(Type),
[INFO] [stdout]    |          ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Constant`
[INFO] [stdout]  --> src/tokenizer.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     Constant,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `Keyword` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]  --> src/tokenizer.rs:1:10
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[derive(Debug, PartialEq)]
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout]   = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Integer`
[INFO] [stdout]  --> src/tokenizer.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     Integer,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] note: `Type` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]  --> src/tokenizer.rs:6:10
[INFO] [stdout]   |
[INFO] [stdout] 6 | #[derive(Debug, PartialEq)]
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout]   = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Identifier`
[INFO] [stdout]   --> src/tokenizer.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     Identifier(&'a str),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `Token` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/tokenizer.rs:11:10
[INFO] [stdout]    |
[INFO] [stdout] 11 | #[derive(Debug, PartialEq)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Keyword`
[INFO] [stdout]   --> src/tokenizer.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     Keyword(Keyword),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `Token` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/tokenizer.rs:11:10
[INFO] [stdout]    |
[INFO] [stdout] 11 | #[derive(Debug, PartialEq)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Type`
[INFO] [stdout]   --> src/tokenizer.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     Type(Type),
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `Token` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/tokenizer.rs:11:10
[INFO] [stdout]    |
[INFO] [stdout] 11 | #[derive(Debug, PartialEq)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.47s
[INFO] running `Command { std: "docker" "inspect" "5f308a102929186ca99e5273efe72d861421b6195cd10a77a7a2abb27a64a738", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f308a102929186ca99e5273efe72d861421b6195cd10a77a7a2abb27a64a738", kill_on_drop: false }`
[INFO] [stdout] 5f308a102929186ca99e5273efe72d861421b6195cd10a77a7a2abb27a64a738
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-62/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-62/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] e0cbe4e1b3b4eec53b182cf76b154688cea181645bc0f6e773c0f64d47bdaefd
[INFO] running `Command { std: "docker" "start" "-a" "e0cbe4e1b3b4eec53b182cf76b154688cea181645bc0f6e773c0f64d47bdaefd", kill_on_drop: false }`
[INFO] [stderr] warning: private type `Keyword` in public interface (error E0446)
[INFO] [stderr]   --> src/tokenizer.rs:14:13
[INFO] [stderr]    |
[INFO] [stderr] 14 |     Keyword(Keyword),
[INFO] [stderr]    |             ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(private_in_public)]` on by default
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
[INFO] [stderr] 
[INFO] [stderr] warning: private type `Type` in public interface (error E0446)
[INFO] [stderr]   --> src/tokenizer.rs:15:10
[INFO] [stderr]    |
[INFO] [stderr] 15 |     Type(Type),
[INFO] [stderr]    |          ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Constant`
[INFO] [stderr]  --> src/tokenizer.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 |     Constant,
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] note: `Keyword` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]  --> src/tokenizer.rs:1:10
[INFO] [stderr]   |
[INFO] [stderr] 1 | #[derive(Debug, PartialEq)]
[INFO] [stderr]   |          ^^^^^
[INFO] [stderr]   = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Integer`
[INFO] [stderr]  --> src/tokenizer.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     Integer,
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr] note: `Type` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]  --> src/tokenizer.rs:6:10
[INFO] [stderr]   |
[INFO] [stderr] 6 | #[derive(Debug, PartialEq)]
[INFO] [stderr]   |          ^^^^^
[INFO] [stderr]   = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Identifier`
[INFO] [stderr]   --> src/tokenizer.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     Identifier(&'a str),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: `Token` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]   --> src/tokenizer.rs:11:10
[INFO] [stderr]    |
[INFO] [stderr] 11 | #[derive(Debug, PartialEq)]
[INFO] [stderr]    |          ^^^^^
[INFO] [stderr]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Keyword`
[INFO] [stderr]   --> src/tokenizer.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     Keyword(Keyword),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: `Token` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]   --> src/tokenizer.rs:11:10
[INFO] [stderr]    |
[INFO] [stderr] 11 | #[derive(Debug, PartialEq)]
[INFO] [stderr]    |          ^^^^^
[INFO] [stderr]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Type`
[INFO] [stderr]   --> src/tokenizer.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     Type(Type),
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: `Token` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]   --> src/tokenizer.rs:11:10
[INFO] [stderr]    |
[INFO] [stderr] 11 | #[derive(Debug, PartialEq)]
[INFO] [stderr]    |          ^^^^^
[INFO] [stderr]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `demi` (lib) generated 7 warnings
[INFO] [stderr] warning: `demi` (lib test) generated 7 warnings (7 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/demi-961e3214603296d0)
[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 demi
[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" "e0cbe4e1b3b4eec53b182cf76b154688cea181645bc0f6e773c0f64d47bdaefd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e0cbe4e1b3b4eec53b182cf76b154688cea181645bc0f6e773c0f64d47bdaefd", kill_on_drop: false }`
[INFO] [stdout] e0cbe4e1b3b4eec53b182cf76b154688cea181645bc0f6e773c0f64d47bdaefd