[INFO] fetching crate counters 0.5.0...
[INFO] checking counters-0.5.0 against master#4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5 for pr-81174
[INFO] extracting crate counters 0.5.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate counters 0.5.0 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 counters 0.5.0
[INFO] finished tweaking crates.io crate counters 0.5.0
[INFO] tweaked toml for crates.io crate counters 0.5.0 written to /workspace/builds/worker-6/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-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 55ca086f08be7b042f8cc5d444c047a8f8008e4d72d4d811e791e1b3523cff34
[INFO] running `Command { std: "docker" "start" "-a" "55ca086f08be7b042f8cc5d444c047a8f8008e4d72d4d811e791e1b3523cff34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "55ca086f08be7b042f8cc5d444c047a8f8008e4d72d4d811e791e1b3523cff34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "55ca086f08be7b042f8cc5d444c047a8f8008e4d72d4d811e791e1b3523cff34", kill_on_drop: false }`
[INFO] [stdout] 55ca086f08be7b042f8cc5d444c047a8f8008e4d72d4d811e791e1b3523cff34
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 2068ed3b456bff432800cefb020d36d76d6643a6369fba3a33aa4901ee15cbbf
[INFO] running `Command { std: "docker" "start" "-a" "2068ed3b456bff432800cefb020d36d76d6643a6369fba3a33aa4901ee15cbbf", kill_on_drop: false }`
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]     Checking counters v0.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/counters.rs:86:60
[INFO] [stdout]    |
[INFO] [stdout] 86 |     pub fn print<F: Filter>(&self, mut filter: F, to: &mut io::Write) -> io::Result<()> {
[INFO] [stdout]    |                                                            ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[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/table.rs:65:34
[INFO] [stdout]    |
[INFO] [stdout] 65 |     pub fn print(&self, to: &mut io::Write) -> io::Result<()> {
[INFO] [stdout]    |                                  ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/noop.rs:17:69
[INFO] [stdout]    |
[INFO] [stdout] 17 |     #[inline] pub fn print<F: Filter>(&self, _filter: F, _out: &mut io::Write) -> io::Result<()> { Ok(()) }
[INFO] [stdout]    |                                                                     ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/noop.rs:27:45
[INFO] [stdout]    |
[INFO] [stdout] 27 |     #[inline] pub fn print(&self, _to: &mut io::Write) -> io::Result<()> { Ok(()) }
[INFO] [stdout]    |                                             ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/counters.rs:86:60
[INFO] [stdout]    |
[INFO] [stdout] 86 |     pub fn print<F: Filter>(&self, mut filter: F, to: &mut io::Write) -> io::Result<()> {
[INFO] [stdout]    |                                                            ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[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/table.rs:65:34
[INFO] [stdout]    |
[INFO] [stdout] 65 |     pub fn print(&self, to: &mut io::Write) -> io::Result<()> {
[INFO] [stdout]    |                                  ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/noop.rs:17:69
[INFO] [stdout]    |
[INFO] [stdout] 17 |     #[inline] pub fn print<F: Filter>(&self, _filter: F, _out: &mut io::Write) -> io::Result<()> { Ok(()) }
[INFO] [stdout]    |                                                                     ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/noop.rs:27:45
[INFO] [stdout]    |
[INFO] [stdout] 27 |     #[inline] pub fn print(&self, _to: &mut io::Write) -> io::Result<()> { Ok(()) }
[INFO] [stdout]    |                                             ^^^^^^^^^ help: use `dyn`: `dyn io::Write`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.61s
[INFO] running `Command { std: "docker" "inspect" "2068ed3b456bff432800cefb020d36d76d6643a6369fba3a33aa4901ee15cbbf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2068ed3b456bff432800cefb020d36d76d6643a6369fba3a33aa4901ee15cbbf", kill_on_drop: false }`
[INFO] [stdout] 2068ed3b456bff432800cefb020d36d76d6643a6369fba3a33aa4901ee15cbbf