[INFO] fetching crate bigbro 0.5.2...
[INFO] checking bigbro-0.5.2 against try#1c5262aa6c045a581fb974488793f09ed51fc498 for pr-78376
[INFO] extracting crate bigbro 0.5.2 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate bigbro 0.5.2 on toolchain 1c5262aa6c045a581fb974488793f09ed51fc498
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1c5262aa6c045a581fb974488793f09ed51fc498" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-6/source/.cargo/config
[INFO] started tweaking crates.io crate bigbro 0.5.2
[INFO] finished tweaking crates.io crate bigbro 0.5.2
[INFO] tweaked toml for crates.io crate bigbro 0.5.2 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1c5262aa6c045a581fb974488793f09ed51fc498" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1c5262aa6c045a581fb974488793f09ed51fc498" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded seccomp-droundy v0.1.0
[INFO] [stderr]   Downloaded seccomp-droundy-sys v0.1.2
[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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1c5262aa6c045a581fb974488793f09ed51fc498" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] aef3691afcb4ec377235883aa8a5978892c0b9f1b6820ae800e27ef292e8bd16
[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" "aef3691afcb4ec377235883aa8a5978892c0b9f1b6820ae800e27ef292e8bd16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aef3691afcb4ec377235883aa8a5978892c0b9f1b6820ae800e27ef292e8bd16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aef3691afcb4ec377235883aa8a5978892c0b9f1b6820ae800e27ef292e8bd16", kill_on_drop: false }`
[INFO] [stdout] aef3691afcb4ec377235883aa8a5978892c0b9f1b6820ae800e27ef292e8bd16
[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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1c5262aa6c045a581fb974488793f09ed51fc498" "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] 60ef1e9e3ee3df59128ac91da2484f5851fd9976fa134e0ecdcefec7f567e076
[INFO] running `Command { std: "docker" "start" "-a" "60ef1e9e3ee3df59128ac91da2484f5851fd9976fa134e0ecdcefec7f567e076", kill_on_drop: false }`
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]    Compiling seccomp-droundy-sys v0.1.2
[INFO] [stderr]     Checking seccomp-droundy v0.1.0
[INFO] [stderr]     Checking bigbro v0.5.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/linux.rs:144:60
[INFO] [stdout]     |
[INFO] [stdout] 144 |     pub fn stdout(&mut self) -> std::io::Result<Option<Box<std::io::Read>>> {
[INFO] [stdout]     |                                                            ^^^^^^^^^^^^^ help: use `dyn`: `dyn std::io::Read`
[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/lib.rs:622:60
[INFO] [stdout]     |
[INFO] [stdout] 622 |     pub fn stdout(&mut self) -> std::io::Result<Option<Box<std::io::Read>>> {
[INFO] [stdout]     |                                                            ^^^^^^^^^^^^^ help: use `dyn`: `dyn std::io::Read`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/linux.rs:144:60
[INFO] [stdout]     |
[INFO] [stdout] 144 |     pub fn stdout(&mut self) -> std::io::Result<Option<Box<std::io::Read>>> {
[INFO] [stdout]     |                                                            ^^^^^^^^^^^^^ help: use `dyn`: `dyn std::io::Read`
[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/lib.rs:622:60
[INFO] [stdout]     |
[INFO] [stdout] 622 |     pub fn stdout(&mut self) -> std::io::Result<Option<Box<std::io::Read>>> {
[INFO] [stdout]     |                                                            ^^^^^^^^^^^^^ help: use `dyn`: `dyn std::io::Read`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.48s
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "60ef1e9e3ee3df59128ac91da2484f5851fd9976fa134e0ecdcefec7f567e076", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60ef1e9e3ee3df59128ac91da2484f5851fd9976fa134e0ecdcefec7f567e076", kill_on_drop: false }`
[INFO] [stdout] 60ef1e9e3ee3df59128ac91da2484f5851fd9976fa134e0ecdcefec7f567e076