[INFO] fetching crate nametable 0.1.2...
[INFO] testing nametable-0.1.2 against beta-2021-08-01 for beta-1.55-1
[INFO] extracting crate nametable 0.1.2 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate nametable 0.1.2 on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate nametable 0.1.2
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate nametable 0.1.2
[INFO] tweaked toml for crates.io crate nametable 0.1.2 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "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-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: An explicit [[test]] section is specified in Cargo.toml which currently
[INFO] [stderr] disables Cargo from automatically inferring other test targets.
[INFO] [stderr] This inference behavior will change in the Rust 2018 edition and the following
[INFO] [stderr] files will be included as a test target:
[INFO] [stderr] 
[INFO] [stderr] * /workspace/builds/worker-1/source/tests/dynamic_tests.rs
[INFO] [stderr] * /workspace/builds/worker-1/source/tests/static_tests.rs
[INFO] [stderr] * /workspace/builds/worker-1/source/tests/hash_tests.rs
[INFO] [stderr] 
[INFO] [stderr] This is likely to break cargo build or cargo test as these files may not be
[INFO] [stderr] ready to be compiled as a test target today. You can future-proof yourself
[INFO] [stderr] and disable this warning by adding `autotests = false` to your [package]
[INFO] [stderr] section. You may also move the files to a location where Cargo would not
[INFO] [stderr] automatically infer them to be a target, such as in subfolders.
[INFO] [stderr] 
[INFO] [stderr] For more information on this warning you can consult
[INFO] [stderr] https://github.com/rust-lang/cargo/issues/5330
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", 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] 5319d8142a17e8068c81f7986bb50208000cc422d0081bf64c898f7d880daa2a
[INFO] running `Command { std: "docker" "start" "-a" "5319d8142a17e8068c81f7986bb50208000cc422d0081bf64c898f7d880daa2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5319d8142a17e8068c81f7986bb50208000cc422d0081bf64c898f7d880daa2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5319d8142a17e8068c81f7986bb50208000cc422d0081bf64c898f7d880daa2a", kill_on_drop: false }`
[INFO] [stdout] 5319d8142a17e8068c81f7986bb50208000cc422d0081bf64c898f7d880daa2a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "build" "--frozen" "--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] bc7913962b0a64103a2604c3b52d7c420957d5ddb9be984a494c09d4a6138f64
[INFO] running `Command { std: "docker" "start" "-a" "bc7913962b0a64103a2604c3b52d7c420957d5ddb9be984a494c09d4a6138f64", kill_on_drop: false }`
[INFO] [stderr] warning: An explicit [[test]] section is specified in Cargo.toml which currently
[INFO] [stderr] disables Cargo from automatically inferring other test targets.
[INFO] [stderr] This inference behavior will change in the Rust 2018 edition and the following
[INFO] [stderr] files will be included as a test target:
[INFO] [stderr] 
[INFO] [stderr] * /opt/rustwide/workdir/tests/dynamic_tests.rs
[INFO] [stderr] * /opt/rustwide/workdir/tests/static_tests.rs
[INFO] [stderr] * /opt/rustwide/workdir/tests/hash_tests.rs
[INFO] [stderr] 
[INFO] [stderr] This is likely to break cargo build or cargo test as these files may not be
[INFO] [stderr] ready to be compiled as a test target today. You can future-proof yourself
[INFO] [stderr] and disable this warning by adding `autotests = false` to your [package]
[INFO] [stderr] section. You may also move the files to a location where Cargo would not
[INFO] [stderr] automatically infer them to be a target, such as in subfolders.
[INFO] [stderr] 
[INFO] [stderr] For more information on this warning you can consult
[INFO] [stderr] https://github.com/rust-lang/cargo/issues/5330
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling nametable v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/nametable.rs:21:43
[INFO] [stdout]    |
[INFO] [stdout] 21 |     fn parent<'a>(&'a self) -> Option<&'a NameTable>;
[INFO] [stdout]    |                                           ^^^^^^^^^ help: use `dyn`: `dyn NameTable`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/nametable.rs:65:24
[INFO] [stdout]    |
[INFO] [stdout] 65 |     parent: Option<Box<NameTable>>,
[INFO] [stdout]    |                        ^^^^^^^^^ help: use `dyn`: `dyn NameTable`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/nametable.rs:78:43
[INFO] [stdout]    |
[INFO] [stdout] 78 |     fn parent<'a>(&'a self) -> Option<&'a NameTable> {
[INFO] [stdout]    |                                           ^^^^^^^^^ help: use `dyn`: `dyn NameTable`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/nametable.rs:110:24
[INFO] [stdout]     |
[INFO] [stdout] 110 |     parent: Option<Box<NameTable>>,
[INFO] [stdout]     |                        ^^^^^^^^^ help: use `dyn`: `dyn NameTable`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/nametable.rs:123:43
[INFO] [stdout]     |
[INFO] [stdout] 123 |     fn parent<'a>(&'a self) -> Option<&'a NameTable> {
[INFO] [stdout]     |                                           ^^^^^^^^^ help: use `dyn`: `dyn NameTable`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/nametable.rs:164:24
[INFO] [stdout]     |
[INFO] [stdout] 164 |     parent: Option<Box<NameTable>>,
[INFO] [stdout]     |                        ^^^^^^^^^ help: use `dyn`: `dyn NameTable`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/nametable.rs:240:43
[INFO] [stdout]     |
[INFO] [stdout] 240 |     fn parent<'a>(&'a self) -> Option<&'a NameTable> {
[INFO] [stdout]     |                                           ^^^^^^^^^ help: use `dyn`: `dyn NameTable`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/nametable.rs:255:36
[INFO] [stdout]     |
[INFO] [stdout] 255 | impl<T: NameTableIdx> Index<T> for NameTable {
[INFO] [stdout]     |                                    ^^^^^^^^^ help: use `dyn`: `dyn NameTable`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.64s
[INFO] running `Command { std: "docker" "inspect" "bc7913962b0a64103a2604c3b52d7c420957d5ddb9be984a494c09d4a6138f64", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc7913962b0a64103a2604c3b52d7c420957d5ddb9be984a494c09d4a6138f64", kill_on_drop: false }`
[INFO] [stdout] bc7913962b0a64103a2604c3b52d7c420957d5ddb9be984a494c09d4a6138f64
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c4a81d731978e45cc30a6d819a1e77e6cd5a93c503eebff917aac8703f7c34da
[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" "c4a81d731978e45cc30a6d819a1e77e6cd5a93c503eebff917aac8703f7c34da", kill_on_drop: false }`
[INFO] [stderr] warning: An explicit [[test]] section is specified in Cargo.toml which currently
[INFO] [stderr] disables Cargo from automatically inferring other test targets.
[INFO] [stderr] This inference behavior will change in the Rust 2018 edition and the following
[INFO] [stderr] files will be included as a test target:
[INFO] [stderr] 
[INFO] [stderr] * /opt/rustwide/workdir/tests/dynamic_tests.rs
[INFO] [stderr] * /opt/rustwide/workdir/tests/static_tests.rs
[INFO] [stderr] * /opt/rustwide/workdir/tests/hash_tests.rs
[INFO] [stderr] 
[INFO] [stderr] This is likely to break cargo build or cargo test as these files may not be
[INFO] [stderr] ready to be compiled as a test target today. You can future-proof yourself
[INFO] [stderr] and disable this warning by adding `autotests = false` to your [package]
[INFO] [stderr] section. You may also move the files to a location where Cargo would not
[INFO] [stderr] automatically infer them to be a target, such as in subfolders.
[INFO] [stderr] 
[INFO] [stderr] For more information on this warning you can consult
[INFO] [stderr] https://github.com/rust-lang/cargo/issues/5330
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/nametable.rs:21:43
[INFO] [stdout]    |
[INFO] [stdout] 21 |     fn parent<'a>(&'a self) -> Option<&'a NameTable>;
[INFO] [stdout]    |                                           ^^^^^^^^^ help: use `dyn`: `dyn NameTable`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling nametable v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/nametable.rs:65:24
[INFO] [stdout]    |
[INFO] [stdout] 65 |     parent: Option<Box<NameTable>>,
[INFO] [stdout]    |                        ^^^^^^^^^ help: use `dyn`: `dyn NameTable`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/nametable.rs:78:43
[INFO] [stdout]    |
[INFO] [stdout] 78 |     fn parent<'a>(&'a self) -> Option<&'a NameTable> {
[INFO] [stdout]    |                                           ^^^^^^^^^ help: use `dyn`: `dyn NameTable`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/nametable.rs:110:24
[INFO] [stdout]     |
[INFO] [stdout] 110 |     parent: Option<Box<NameTable>>,
[INFO] [stdout]     |                        ^^^^^^^^^ help: use `dyn`: `dyn NameTable`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/nametable.rs:123:43
[INFO] [stdout]     |
[INFO] [stdout] 123 |     fn parent<'a>(&'a self) -> Option<&'a NameTable> {
[INFO] [stdout]     |                                           ^^^^^^^^^ help: use `dyn`: `dyn NameTable`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/nametable.rs:164:24
[INFO] [stdout]     |
[INFO] [stdout] 164 |     parent: Option<Box<NameTable>>,
[INFO] [stdout]     |                        ^^^^^^^^^ help: use `dyn`: `dyn NameTable`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/nametable.rs:240:43
[INFO] [stdout]     |
[INFO] [stdout] 240 |     fn parent<'a>(&'a self) -> Option<&'a NameTable> {
[INFO] [stdout]     |                                           ^^^^^^^^^ help: use `dyn`: `dyn NameTable`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/nametable.rs:255:36
[INFO] [stdout]     |
[INFO] [stdout] 255 | impl<T: NameTableIdx> Index<T> for NameTable {
[INFO] [stdout]     |                                    ^^^^^^^^^ help: use `dyn`: `dyn NameTable`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/nametable.rs:21:43
[INFO] [stdout]    |
[INFO] [stdout] 21 |     fn parent<'a>(&'a self) -> Option<&'a NameTable>;
[INFO] [stdout]    |                                           ^^^^^^^^^ help: use `dyn`: `dyn NameTable`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/nametable.rs:65:24
[INFO] [stdout]    |
[INFO] [stdout] 65 |     parent: Option<Box<NameTable>>,
[INFO] [stdout]    |                        ^^^^^^^^^ help: use `dyn`: `dyn NameTable`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/nametable.rs:78:43
[INFO] [stdout]    |
[INFO] [stdout] 78 |     fn parent<'a>(&'a self) -> Option<&'a NameTable> {
[INFO] [stdout]    |                                           ^^^^^^^^^ help: use `dyn`: `dyn NameTable`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/nametable.rs:110:24
[INFO] [stdout]     |
[INFO] [stdout] 110 |     parent: Option<Box<NameTable>>,
[INFO] [stdout]     |                        ^^^^^^^^^ help: use `dyn`: `dyn NameTable`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/nametable.rs:123:43
[INFO] [stdout]     |
[INFO] [stdout] 123 |     fn parent<'a>(&'a self) -> Option<&'a NameTable> {
[INFO] [stdout]     |                                           ^^^^^^^^^ help: use `dyn`: `dyn NameTable`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/nametable.rs:164:24
[INFO] [stdout]     |
[INFO] [stdout] 164 |     parent: Option<Box<NameTable>>,
[INFO] [stdout]     |                        ^^^^^^^^^ help: use `dyn`: `dyn NameTable`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/nametable.rs:240:43
[INFO] [stdout]     |
[INFO] [stdout] 240 |     fn parent<'a>(&'a self) -> Option<&'a NameTable> {
[INFO] [stdout]     |                                           ^^^^^^^^^ help: use `dyn`: `dyn NameTable`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/nametable.rs:255:36
[INFO] [stdout]     |
[INFO] [stdout] 255 | impl<T: NameTableIdx> Index<T> for NameTable {
[INFO] [stdout]     |                                    ^^^^^^^^^ help: use `dyn`: `dyn NameTable`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> tests/hash_tests.rs:38:23
[INFO] [stdout]    |
[INFO] [stdout] 38 | use std::sync::{Once, ONCE_INIT};
[INFO] [stdout]    |                       ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> tests/hash_tests.rs:40:22
[INFO] [stdout]    |
[INFO] [stdout] 40 | static START: Once = ONCE_INIT;
[INFO] [stdout]    |                      ^^^^^^^^^ help: replace the use of the deprecated constant: `Once::new()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.84s
[INFO] running `Command { std: "docker" "inspect" "c4a81d731978e45cc30a6d819a1e77e6cd5a93c503eebff917aac8703f7c34da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c4a81d731978e45cc30a6d819a1e77e6cd5a93c503eebff917aac8703f7c34da", kill_on_drop: false }`
[INFO] [stdout] c4a81d731978e45cc30a6d819a1e77e6cd5a93c503eebff917aac8703f7c34da
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "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] 840ddc8aa2f16566ac807db73597542c3f8c5bac709f4d98c96fc5ad8dd44c83
[INFO] running `Command { std: "docker" "start" "-a" "840ddc8aa2f16566ac807db73597542c3f8c5bac709f4d98c96fc5ad8dd44c83", kill_on_drop: false }`
[INFO] [stderr] warning: An explicit [[test]] section is specified in Cargo.toml which currently
[INFO] [stderr] disables Cargo from automatically inferring other test targets.
[INFO] [stderr] This inference behavior will change in the Rust 2018 edition and the following
[INFO] [stderr] files will be included as a test target:
[INFO] [stderr] 
[INFO] [stderr] * /opt/rustwide/workdir/tests/dynamic_tests.rs
[INFO] [stderr] * /opt/rustwide/workdir/tests/static_tests.rs
[INFO] [stderr] * /opt/rustwide/workdir/tests/hash_tests.rs
[INFO] [stderr] 
[INFO] [stderr] This is likely to break cargo build or cargo test as these files may not be
[INFO] [stderr] ready to be compiled as a test target today. You can future-proof yourself
[INFO] [stderr] and disable this warning by adding `autotests = false` to your [package]
[INFO] [stderr] section. You may also move the files to a location where Cargo would not
[INFO] [stderr] automatically infer them to be a target, such as in subfolders.
[INFO] [stderr] 
[INFO] [stderr] For more information on this warning you can consult
[INFO] [stderr] https://github.com/rust-lang/cargo/issues/5330
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/nametable.rs:21:43
[INFO] [stderr]    |
[INFO] [stderr] 21 |     fn parent<'a>(&'a self) -> Option<&'a NameTable>;
[INFO] [stderr]    |                                           ^^^^^^^^^ help: use `dyn`: `dyn NameTable`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/nametable.rs:65:24
[INFO] [stderr]    |
[INFO] [stderr] 65 |     parent: Option<Box<NameTable>>,
[INFO] [stderr]    |                        ^^^^^^^^^ help: use `dyn`: `dyn NameTable`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/nametable.rs:78:43
[INFO] [stderr]    |
[INFO] [stderr] 78 |     fn parent<'a>(&'a self) -> Option<&'a NameTable> {
[INFO] [stderr]    |                                           ^^^^^^^^^ help: use `dyn`: `dyn NameTable`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/nametable.rs:110:24
[INFO] [stderr]     |
[INFO] [stderr] 110 |     parent: Option<Box<NameTable>>,
[INFO] [stderr]     |                        ^^^^^^^^^ help: use `dyn`: `dyn NameTable`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/nametable.rs:123:43
[INFO] [stderr]     |
[INFO] [stderr] 123 |     fn parent<'a>(&'a self) -> Option<&'a NameTable> {
[INFO] [stderr]     |                                           ^^^^^^^^^ help: use `dyn`: `dyn NameTable`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/nametable.rs:164:24
[INFO] [stderr]     |
[INFO] [stderr] 164 |     parent: Option<Box<NameTable>>,
[INFO] [stderr]     |                        ^^^^^^^^^ help: use `dyn`: `dyn NameTable`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/nametable.rs:240:43
[INFO] [stderr]     |
[INFO] [stderr] 240 |     fn parent<'a>(&'a self) -> Option<&'a NameTable> {
[INFO] [stderr]     |                                           ^^^^^^^^^ help: use `dyn`: `dyn NameTable`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/nametable.rs:255:36
[INFO] [stderr]     |
[INFO] [stderr] 255 | impl<T: NameTableIdx> Index<T> for NameTable {
[INFO] [stderr]     |                                    ^^^^^^^^^ help: use `dyn`: `dyn NameTable`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: `nametable` (lib) generated 8 warnings
[INFO] [stderr] warning: `nametable` (lib test) generated 8 warnings (8 duplicates)
[INFO] [stderr] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stderr]   --> tests/hash_tests.rs:38:23
[INFO] [stderr]    |
[INFO] [stderr] 38 | use std::sync::{Once, ONCE_INIT};
[INFO] [stderr]    |                       ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated constant `std::sync::ONCE_INIT`: the `new` function is now preferred
[INFO] [stderr]   --> tests/hash_tests.rs:40:22
[INFO] [stderr]    |
[INFO] [stderr] 40 | static START: Once = ONCE_INIT;
[INFO] [stderr]    |                      ^^^^^^^^^ help: replace the use of the deprecated constant: `Once::new()`
[INFO] [stderr] 
[INFO] [stderr] warning: `nametable` (test "tests") generated 2 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/nametable-2e28db720e2759d6)
[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]      Running tests/tests.rs (/opt/rustwide/target/debug/deps/tests-78ffcc4d32274dcf)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test dynamic_tests::test3 ... ok
[INFO] [stdout] test static_tests::test1 ... ok
[INFO] [stdout] test hash_tests::test1 ... ok
[INFO] [stdout] test static_tests::test2 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests nametable
[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" "840ddc8aa2f16566ac807db73597542c3f8c5bac709f4d98c96fc5ad8dd44c83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "840ddc8aa2f16566ac807db73597542c3f8c5bac709f4d98c96fc5ad8dd44c83", kill_on_drop: false }`
[INFO] [stdout] 840ddc8aa2f16566ac807db73597542c3f8c5bac709f4d98c96fc5ad8dd44c83
