[INFO] fetching crate bigbro 0.5.2...
[INFO] checking bigbro-0.5.2 against try#38f08371587f97c145dedb2c055ac7b01bf1e788 for pr-65294
[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 38f08371587f97c145dedb2c055ac7b01bf1e788
[INFO] running `"/workspace/cargo-home/bin/cargo" "+38f08371587f97c145dedb2c055ac7b01bf1e788" "read-manifest" "--manifest-path" "Cargo.toml"`
[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 `"/workspace/cargo-home/bin/cargo" "+38f08371587f97c145dedb2c055ac7b01bf1e788" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+38f08371587f97c145dedb2c055ac7b01bf1e788" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded seccomp-droundy v0.1.0
[INFO] [stderr]   Downloaded seccomp-droundy-sys v0.1.2
[INFO] running `"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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+38f08371587f97c145dedb2c055ac7b01bf1e788" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] bc664b793c122bbb255c640c09c81f3a0389090d74c019fbad890dc24d9a4c4e
[INFO] running `"docker" "start" "-a" "bc664b793c122bbb255c640c09c81f3a0389090d74c019fbad890dc24d9a4c4e"`
[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] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/linux.rs:144:60
[INFO] [stderr]     |
[INFO] [stderr] 144 |     pub fn stdout(&mut self) -> std::io::Result<Option<Box<std::io::Read>>> {
[INFO] [stderr]     |                                                            ^^^^^^^^^^^^^ help: use `dyn`: `dyn std::io::Read`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:622:60
[INFO] [stderr]     |
[INFO] [stderr] 622 |     pub fn stdout(&mut self) -> std::io::Result<Option<Box<std::io::Read>>> {
[INFO] [stderr]     |                                                            ^^^^^^^^^^^^^ help: use `dyn`: `dyn std::io::Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/linux.rs:144:60
[INFO] [stderr]     |
[INFO] [stderr] 144 |     pub fn stdout(&mut self) -> std::io::Result<Option<Box<std::io::Read>>> {
[INFO] [stderr]     |                                                            ^^^^^^^^^^^^^ help: use `dyn`: `dyn std::io::Read`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:622:60
[INFO] [stderr]     |
[INFO] [stderr] 622 |     pub fn stdout(&mut self) -> std::io::Result<Option<Box<std::io::Read>>> {
[INFO] [stderr]     |                                                            ^^^^^^^^^^^^^ help: use `dyn`: `dyn std::io::Read`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.26s
[INFO] running `"docker" "inspect" "bc664b793c122bbb255c640c09c81f3a0389090d74c019fbad890dc24d9a4c4e"`
[INFO] running `"docker" "rm" "-f" "bc664b793c122bbb255c640c09c81f3a0389090d74c019fbad890dc24d9a4c4e"`
[INFO] [stdout] bc664b793c122bbb255c640c09c81f3a0389090d74c019fbad890dc24d9a4c4e