[INFO] fetching crate ludus 0.2.2...
[INFO] checking ludus-0.2.2 against master#4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5 for pr-81174
[INFO] extracting crate ludus 0.2.2 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate ludus 0.2.2 on toolchain 4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ludus 0.2.2
[INFO] finished tweaking crates.io crate ludus 0.2.2
[INFO] tweaked toml for crates.io crate ludus 0.2.2 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c5fa139dedf16bcae476ea3717163f321226865fbd82538b703a9a2baf101253
[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" "c5fa139dedf16bcae476ea3717163f321226865fbd82538b703a9a2baf101253", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c5fa139dedf16bcae476ea3717163f321226865fbd82538b703a9a2baf101253", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5fa139dedf16bcae476ea3717163f321226865fbd82538b703a9a2baf101253", kill_on_drop: false }`
[INFO] [stdout] c5fa139dedf16bcae476ea3717163f321226865fbd82538b703a9a2baf101253
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5" "check" "--frozen" "--all" "--all-targets" "--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] dd7faa4172b2ff62d967e6c2f9732da2c5528d77bf108d0aacc88fe63598b82f
[INFO] running `Command { std: "docker" "start" "-a" "dd7faa4172b2ff62d967e6c2f9732da2c5528d77bf108d0aacc88fe63598b82f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.82
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]     Checking ludus v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling memoffset v0.6.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]     Checking rand_xoshiro v0.1.0
[INFO] [stderr]     Checking crossbeam-channel v0.5.0
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/memory/mod.rs:17:6
[INFO] [stdout]    |
[INFO] [stdout] 17 | impl Mapper {
[INFO] [stdout]    |      ^^^^^^ help: use `dyn`: `dyn Mapper`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/memory/mod.rs:20:41
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn with_cart(cart: Cart) -> Box<Mapper> {
[INFO] [stdout]    |                                         ^^^^^^ help: use `dyn`: `dyn Mapper`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/memory/mod.rs:33:21
[INFO] [stdout]    |
[INFO] [stdout] 33 |     pub mapper: Box<Mapper>,
[INFO] [stdout]    |                     ^^^^^^ help: use `dyn`: `dyn Mapper`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ppu.rs:344:43
[INFO] [stdout]     |
[INFO] [stdout] 344 |     fn write_data(&mut self, mapper: &mut Mapper, value: u8) {
[INFO] [stdout]     |                                           ^^^^^^ help: use `dyn`: `dyn Mapper`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking serde_json v1.0.61
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking bstr v0.2.14
[INFO] [stderr]     Checking crossbeam-epoch v0.9.1
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]     Checking csv v1.1.5
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking tinytemplate v1.2.0
[INFO] [stderr]     Checking rayon-core v1.9.0
[INFO] [stderr]     Checking criterion-plot v0.3.1
[INFO] [stderr]    Compiling serde_derive v1.0.123
[INFO] [stderr]     Checking criterion v0.2.11
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/memory/mod.rs:17:6
[INFO] [stdout]    |
[INFO] [stdout] 17 | impl Mapper {
[INFO] [stdout]    |      ^^^^^^ help: use `dyn`: `dyn Mapper`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/memory/mod.rs:20:41
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn with_cart(cart: Cart) -> Box<Mapper> {
[INFO] [stdout]    |                                         ^^^^^^ help: use `dyn`: `dyn Mapper`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/memory/mod.rs:33:21
[INFO] [stdout]    |
[INFO] [stdout] 33 |     pub mapper: Box<Mapper>,
[INFO] [stdout]    |                     ^^^^^^ help: use `dyn`: `dyn Mapper`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ppu.rs:344:43
[INFO] [stdout]     |
[INFO] [stdout] 344 |     fn write_data(&mut self, mapper: &mut Mapper, value: u8) {
[INFO] [stdout]     |                                           ^^^^^^ help: use `dyn`: `dyn Mapper`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 36.54s
[INFO] running `Command { std: "docker" "inspect" "dd7faa4172b2ff62d967e6c2f9732da2c5528d77bf108d0aacc88fe63598b82f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd7faa4172b2ff62d967e6c2f9732da2c5528d77bf108d0aacc88fe63598b82f", kill_on_drop: false }`
[INFO] [stdout] dd7faa4172b2ff62d967e6c2f9732da2c5528d77bf108d0aacc88fe63598b82f