[INFO] fetching crate modulator 0.1.0...
[INFO] checking modulator-0.1.0 against master#a5f164faad4a2fed606b8160fd7ecd2d5cbba381 for pr-84920
[INFO] extracting crate modulator 0.1.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate modulator 0.1.0 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 modulator 0.1.0
[INFO] finished tweaking crates.io crate modulator 0.1.0
[INFO] tweaked toml for crates.io crate modulator 0.1.0 written to /workspace/builds/worker-1/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-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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "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] 7d8f182f3dec32f8aa9e55aae65e4a4f6244a16f9e8ae81d1ea30755f886ad23
[INFO] running `Command { std: "docker" "start" "-a" "7d8f182f3dec32f8aa9e55aae65e4a4f6244a16f9e8ae81d1ea30755f886ad23", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7d8f182f3dec32f8aa9e55aae65e4a4f6244a16f9e8ae81d1ea30755f886ad23", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d8f182f3dec32f8aa9e55aae65e4a4f6244a16f9e8ae81d1ea30755f886ad23", kill_on_drop: false }`
[INFO] [stdout] 7d8f182f3dec32f8aa9e55aae65e4a4f6244a16f9e8ae81d1ea30755f886ad23
[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=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] 523dd165df01c97035e4c61c2b0f15d49e3e12b5795db04cb5c2cea1620b4dcc
[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" "523dd165df01c97035e4c61c2b0f15d49e3e12b5795db04cb5c2cea1620b4dcc", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking modulator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/sources.rs:25:19
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub wave: Box<Fn(&Wave, f32) -> f32>, // wave closure, receives self and time in s
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Wave, f32) -> f32`
[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/sources.rs:50:37
[INFO] [stdout]    |
[INFO] [stdout] 50 |     pub fn wave(mut self, wave: Box<Fn(&Wave, f32) -> f32>) -> Self {
[INFO] [stdout]    |                                     ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Wave, f32) -> f32`
[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/sources.rs:56:42
[INFO] [stdout]    |
[INFO] [stdout] 56 |     pub fn set_wave(&mut self, wave: Box<Fn(&Wave, f32) -> f32>) {
[INFO] [stdout]    |                                          ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Wave, f32) -> f32`
[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/sources.rs:76:34
[INFO] [stdout]    |
[INFO] [stdout] 76 |     fn as_any(&mut self) -> &mut Any {
[INFO] [stdout]    |                                  ^^^ help: use `dyn`: `dyn Any`
[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/sources.rs:162:34
[INFO] [stdout]     |
[INFO] [stdout] 162 |     fn as_any(&mut self) -> &mut Any {
[INFO] [stdout]     |                                  ^^^ help: use `dyn`: `dyn Any`
[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/sources.rs:309:34
[INFO] [stdout]     |
[INFO] [stdout] 309 |     fn as_any(&mut self) -> &mut Any {
[INFO] [stdout]     |                                  ^^^ help: use `dyn`: `dyn Any`
[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/sources.rs:528:34
[INFO] [stdout]     |
[INFO] [stdout] 528 |     fn as_any(&mut self) -> &mut Any {
[INFO] [stdout]     |                                  ^^^ help: use `dyn`: `dyn Any`
[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/sources.rs:701:34
[INFO] [stdout]     |
[INFO] [stdout] 701 |     fn as_any(&mut self) -> &mut Any {
[INFO] [stdout]     |                                  ^^^ help: use `dyn`: `dyn Any`
[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:396:34
[INFO] [stdout]     |
[INFO] [stdout] 396 |     fn as_any(&mut self) -> &mut Any;
[INFO] [stdout]     |                                  ^^^ help: use `dyn`: `dyn Any`
[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/sources.rs:25:19
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub wave: Box<Fn(&Wave, f32) -> f32>, // wave closure, receives self and time in s
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Wave, f32) -> f32`
[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/sources.rs:50:37
[INFO] [stdout]    |
[INFO] [stdout] 50 |     pub fn wave(mut self, wave: Box<Fn(&Wave, f32) -> f32>) -> Self {
[INFO] [stdout]    |                                     ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Wave, f32) -> f32`
[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/sources.rs:56:42
[INFO] [stdout]    |
[INFO] [stdout] 56 |     pub fn set_wave(&mut self, wave: Box<Fn(&Wave, f32) -> f32>) {
[INFO] [stdout]    |                                          ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Wave, f32) -> f32`
[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/sources.rs:76:34
[INFO] [stdout]    |
[INFO] [stdout] 76 |     fn as_any(&mut self) -> &mut Any {
[INFO] [stdout]    |                                  ^^^ help: use `dyn`: `dyn Any`
[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/sources.rs:162:34
[INFO] [stdout]     |
[INFO] [stdout] 162 |     fn as_any(&mut self) -> &mut Any {
[INFO] [stdout]     |                                  ^^^ help: use `dyn`: `dyn Any`
[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/sources.rs:309:34
[INFO] [stdout]     |
[INFO] [stdout] 309 |     fn as_any(&mut self) -> &mut Any {
[INFO] [stdout]     |                                  ^^^ help: use `dyn`: `dyn Any`
[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/sources.rs:528:34
[INFO] [stdout]     |
[INFO] [stdout] 528 |     fn as_any(&mut self) -> &mut Any {
[INFO] [stdout]     |                                  ^^^ help: use `dyn`: `dyn Any`
[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/sources.rs:701:34
[INFO] [stdout]     |
[INFO] [stdout] 701 |     fn as_any(&mut self) -> &mut Any {
[INFO] [stdout]     |                                  ^^^ help: use `dyn`: `dyn Any`
[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:396:34
[INFO] [stdout]     |
[INFO] [stdout] 396 |     fn as_any(&mut self) -> &mut Any;
[INFO] [stdout]     |                                  ^^^ help: use `dyn`: `dyn Any`
[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: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.76s
[INFO] running `Command { std: "docker" "inspect" "523dd165df01c97035e4c61c2b0f15d49e3e12b5795db04cb5c2cea1620b4dcc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "523dd165df01c97035e4c61c2b0f15d49e3e12b5795db04cb5c2cea1620b4dcc", kill_on_drop: false }`
[INFO] [stdout] 523dd165df01c97035e4c61c2b0f15d49e3e12b5795db04cb5c2cea1620b4dcc