[INFO] fetching crate sputnikvm-network-classic 0.11.0-beta.0...
[INFO] checking sputnikvm-network-classic-0.11.0-beta.0 against master#a5f164faad4a2fed606b8160fd7ecd2d5cbba381 for pr-84920
[INFO] extracting crate sputnikvm-network-classic 0.11.0-beta.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate sputnikvm-network-classic 0.11.0-beta.0 on toolchain a5f164faad4a2fed606b8160fd7ecd2d5cbba381
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sputnikvm-network-classic 0.11.0-beta.0
[INFO] finished tweaking crates.io crate sputnikvm-network-classic 0.11.0-beta.0
[INFO] tweaked toml for crates.io crate sputnikvm-network-classic 0.11.0-beta.0 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 40ea3402e063c7c80625bdb331d1aba1a39898cc44e7ce02066101ef6c9944b9
[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" "40ea3402e063c7c80625bdb331d1aba1a39898cc44e7ce02066101ef6c9944b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "40ea3402e063c7c80625bdb331d1aba1a39898cc44e7ce02066101ef6c9944b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "40ea3402e063c7c80625bdb331d1aba1a39898cc44e7ce02066101ef6c9944b9", kill_on_drop: false }`
[INFO] [stdout] 40ea3402e063c7c80625bdb331d1aba1a39898cc44e7ce02066101ef6c9944b9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c28b1e1020307923b1ac628810ad6b518b4ff86d1bf43c17a644f8eb0b1d5cad
[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" "c28b1e1020307923b1ac628810ad6b518b4ff86d1bf43c17a644f8eb0b1d5cad", kill_on_drop: false }`
[INFO] [stderr]     Checking sputnikvm-network-classic v0.11.0-beta.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:28:73
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub static ETC_PRECOMPILEDS: [(Address, Option<&'static [u8]>, &'static Precompiled); 4] = [
[INFO] [stdout]    |                                                                         ^^^^^^^^^^^ help: use `dyn`: `dyn Precompiled`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` 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 the 2021 edition!
[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/lib.rs:43:79
[INFO] [stdout]    |
[INFO] [stdout] 43 | pub static BYZANTIUM_PRECOMPILEDS: [(Address, Option<&'static [u8]>, &'static Precompiled); 8] = [
[INFO] [stdout]    |                                                                               ^^^^^^^^^^^ help: use `dyn`: `dyn Precompiled`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[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/lib.rs:98:78
[INFO] [stdout]    |
[INFO] [stdout] 98 |     fn precompileds() -> &'static [(Address, Option<&'static [u8]>, &'static Precompiled)] {
[INFO] [stdout]    |                                                                              ^^^^^^^^^^^ help: use `dyn`: `dyn Precompiled`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[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/lib.rs:130:78
[INFO] [stdout]     |
[INFO] [stdout] 130 |     fn precompileds() -> &'static [(Address, Option<&'static [u8]>, &'static Precompiled)] {
[INFO] [stdout]     |                                                                              ^^^^^^^^^^^ help: use `dyn`: `dyn Precompiled`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[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/lib.rs:162:78
[INFO] [stdout]     |
[INFO] [stdout] 162 |     fn precompileds() -> &'static [(Address, Option<&'static [u8]>, &'static Precompiled)] {
[INFO] [stdout]     |                                                                              ^^^^^^^^^^^ help: use `dyn`: `dyn Precompiled`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[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/lib.rs:194:78
[INFO] [stdout]     |
[INFO] [stdout] 194 |     fn precompileds() -> &'static [(Address, Option<&'static [u8]>, &'static Precompiled)] {
[INFO] [stdout]     |                                                                              ^^^^^^^^^^^ help: use `dyn`: `dyn Precompiled`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[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/lib.rs:226:78
[INFO] [stdout]     |
[INFO] [stdout] 226 |     fn precompileds() -> &'static [(Address, Option<&'static [u8]>, &'static Precompiled)] {
[INFO] [stdout]     |                                                                              ^^^^^^^^^^^ help: use `dyn`: `dyn Precompiled`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[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/lib.rs:259:78
[INFO] [stdout]     |
[INFO] [stdout] 259 |     fn precompileds() -> &'static [(Address, Option<&'static [u8]>, &'static Precompiled)] {
[INFO] [stdout]     |                                                                              ^^^^^^^^^^^ help: use `dyn`: `dyn Precompiled`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[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/lib.rs:28:73
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub static ETC_PRECOMPILEDS: [(Address, Option<&'static [u8]>, &'static Precompiled); 4] = [
[INFO] [stdout]    |                                                                         ^^^^^^^^^^^ help: use `dyn`: `dyn Precompiled`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` 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 the 2021 edition!
[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/lib.rs:43:79
[INFO] [stdout]    |
[INFO] [stdout] 43 | pub static BYZANTIUM_PRECOMPILEDS: [(Address, Option<&'static [u8]>, &'static Precompiled); 8] = [
[INFO] [stdout]    |                                                                               ^^^^^^^^^^^ help: use `dyn`: `dyn Precompiled`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[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/lib.rs:98:78
[INFO] [stdout]    |
[INFO] [stdout] 98 |     fn precompileds() -> &'static [(Address, Option<&'static [u8]>, &'static Precompiled)] {
[INFO] [stdout]    |                                                                              ^^^^^^^^^^^ help: use `dyn`: `dyn Precompiled`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[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/lib.rs:130:78
[INFO] [stdout]     |
[INFO] [stdout] 130 |     fn precompileds() -> &'static [(Address, Option<&'static [u8]>, &'static Precompiled)] {
[INFO] [stdout]     |                                                                              ^^^^^^^^^^^ help: use `dyn`: `dyn Precompiled`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[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/lib.rs:162:78
[INFO] [stdout]     |
[INFO] [stdout] 162 |     fn precompileds() -> &'static [(Address, Option<&'static [u8]>, &'static Precompiled)] {
[INFO] [stdout]     |                                                                              ^^^^^^^^^^^ help: use `dyn`: `dyn Precompiled`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[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/lib.rs:194:78
[INFO] [stdout]     |
[INFO] [stdout] 194 |     fn precompileds() -> &'static [(Address, Option<&'static [u8]>, &'static Precompiled)] {
[INFO] [stdout]     |                                                                              ^^^^^^^^^^^ help: use `dyn`: `dyn Precompiled`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[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/lib.rs:226:78
[INFO] [stdout]     |
[INFO] [stdout] 226 |     fn precompileds() -> &'static [(Address, Option<&'static [u8]>, &'static Precompiled)] {
[INFO] [stdout]     |                                                                              ^^^^^^^^^^^ help: use `dyn`: `dyn Precompiled`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[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/lib.rs:259:78
[INFO] [stdout]     |
[INFO] [stdout] 259 |     fn precompileds() -> &'static [(Address, Option<&'static [u8]>, &'static Precompiled)] {
[INFO] [stdout]     |                                                                              ^^^^^^^^^^^ help: use `dyn`: `dyn Precompiled`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[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: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.79s
[INFO] running `Command { std: "docker" "inspect" "c28b1e1020307923b1ac628810ad6b518b4ff86d1bf43c17a644f8eb0b1d5cad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c28b1e1020307923b1ac628810ad6b518b4ff86d1bf43c17a644f8eb0b1d5cad", kill_on_drop: false }`
[INFO] [stdout] c28b1e1020307923b1ac628810ad6b518b4ff86d1bf43c17a644f8eb0b1d5cad