[INFO] fetching crate in_stream 0.0.52-alpha1...
[INFO] checking in_stream-0.0.52-alpha1 against try#075992eda207e1647b699c8c8ada67b32ce7b115 for pr-77271
[INFO] extracting crate in_stream 0.0.52-alpha1 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate in_stream 0.0.52-alpha1 on toolchain 075992eda207e1647b699c8c8ada67b32ce7b115
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+075992eda207e1647b699c8c8ada67b32ce7b115" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate in_stream 0.0.52-alpha1
[INFO] finished tweaking crates.io crate in_stream 0.0.52-alpha1
[INFO] tweaked toml for crates.io crate in_stream 0.0.52-alpha1 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+075992eda207e1647b699c8c8ada67b32ce7b115" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+075992eda207e1647b699c8c8ada67b32ce7b115" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded yasna v0.3.2
[INFO] [stderr]   Downloaded pem v0.7.0
[INFO] [stderr]   Downloaded serde_json v1.0.47
[INFO] [stderr]   Downloaded rcgen v0.8.0
[INFO] [stderr]   Downloaded url2 v0.0.4
[INFO] [stderr]   Downloaded nanoid v0.2.0
[INFO] [stderr]   Downloaded shrinkwraprs v0.2.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+075992eda207e1647b699c8c8ada67b32ce7b115" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9e629fc0b82316b8c8da0ce886d2abad3270cbb553f47966b067f30d8c35646d
[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" "9e629fc0b82316b8c8da0ce886d2abad3270cbb553f47966b067f30d8c35646d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9e629fc0b82316b8c8da0ce886d2abad3270cbb553f47966b067f30d8c35646d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e629fc0b82316b8c8da0ce886d2abad3270cbb553f47966b067f30d8c35646d", kill_on_drop: false }`
[INFO] [stdout] 9e629fc0b82316b8c8da0ce886d2abad3270cbb553f47966b067f30d8c35646d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+075992eda207e1647b699c8c8ada67b32ce7b115" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c54898c5c09523038117ce14127890833211e278a1fb8b59a23ff82be5d29313
[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" "c54898c5c09523038117ce14127890833211e278a1fb8b59a23ff82be5d29313", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling syn v1.0.42
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]     Checking untrusted v0.7.1
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling ring v0.16.15
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking net2 v0.2.35
[INFO] [stderr]     Checking smallvec v0.6.13
[INFO] [stderr]     Checking pem v0.7.0
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]     Checking url2 v0.0.4
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]     Checking sha-1 v0.8.2
[INFO] [stderr]     Checking crossbeam-channel v0.3.9
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling openssl-sys v0.9.58
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling indexmap v1.6.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking nanoid v0.2.0
[INFO] [stderr]     Checking input_buffer v0.2.0
[INFO] [stderr]     Checking http v0.1.21
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]    Compiling openssl v0.10.30
[INFO] [stderr]    Compiling native-tls v0.2.4
[INFO] [stderr]     Checking chrono v0.4.18
[INFO] [stderr]     Checking yasna v0.3.2
[INFO] [stderr]     Checking rcgen v0.8.0
[INFO] [stderr]     Checking serde_json v1.0.47
[INFO] [stderr]     Checking tungstenite v0.9.2
[INFO] [stderr]    Compiling shrinkwraprs v0.2.3
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]     Checking in_stream v0.0.52-alpha1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]    --> src/mem.rs:359:9
[INFO] [stdout]     |
[INFO] [stdout] 359 |         { parking_lot::Mutex::new(MemManager::new()) };
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_braces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]    --> src/mem.rs:359:9
[INFO] [stdout]     |
[INFO] [stdout] 359 |         { parking_lot::Mutex::new(MemManager::new()) };
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_braces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 54.56s
[INFO] running `Command { std: "docker" "inspect" "c54898c5c09523038117ce14127890833211e278a1fb8b59a23ff82be5d29313", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c54898c5c09523038117ce14127890833211e278a1fb8b59a23ff82be5d29313", kill_on_drop: false }`
[INFO] [stdout] c54898c5c09523038117ce14127890833211e278a1fb8b59a23ff82be5d29313