[INFO] fetching crate in_stream 0.0.52-alpha2...
[INFO] checking in_stream-0.0.52-alpha2 against master#4d0dd02ee07bddad9136f95c9f7846ebf3eb3fc5 for pr-81174
[INFO] extracting crate in_stream 0.0.52-alpha2 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate in_stream 0.0.52-alpha2 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 in_stream 0.0.52-alpha2
[INFO] finished tweaking crates.io crate in_stream 0.0.52-alpha2
[INFO] tweaked toml for crates.io crate in_stream 0.0.52-alpha2 written to /workspace/builds/worker-5/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-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] 91ebc9025b4a42bc0858c93a4351335a3c688b4d6d93c561ade5ad9049eb82b2
[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" "91ebc9025b4a42bc0858c93a4351335a3c688b4d6d93c561ade5ad9049eb82b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "91ebc9025b4a42bc0858c93a4351335a3c688b4d6d93c561ade5ad9049eb82b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "91ebc9025b4a42bc0858c93a4351335a3c688b4d6d93c561ade5ad9049eb82b2", kill_on_drop: false }`
[INFO] [stdout] 91ebc9025b4a42bc0858c93a4351335a3c688b4d6d93c561ade5ad9049eb82b2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] [stdout] 0d7dc6d2511c54e844692bbbb21772f4a06d981dbc7790f538f7d97bdd86b41f
[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" "0d7dc6d2511c54e844692bbbb21772f4a06d981dbc7790f538f7d97bdd86b41f", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling log v0.4.13
[INFO] [stderr]    Compiling openssl v0.10.32
[INFO] [stderr]     Checking byte-tools v0.3.1
[INFO] [stderr]     Checking regex-syntax v0.6.22
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking fake-simd v0.1.2
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking untrusted v0.7.1
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]     Checking opaque-debug v0.2.3
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking thread_local v1.1.2
[INFO] [stderr]    Compiling ring v0.16.19
[INFO] [stderr]    Compiling indexmap v1.6.1
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]     Checking block-padding v0.1.5
[INFO] [stderr]     Checking foreign-types v0.3.2
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking openssl-sys v0.9.60
[INFO] [stderr]    Compiling native-tls v0.2.7
[INFO] [stderr]     Checking input_buffer v0.2.0
[INFO] [stderr]     Checking crossbeam-channel v0.3.9
[INFO] [stderr]     Checking parking_lot_core v0.6.2
[INFO] [stderr]     Checking url2 v0.0.4
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking parking_lot v0.9.0
[INFO] [stderr]     Checking nanoid v0.2.0
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking generic-array v0.12.3
[INFO] [stderr]     Checking digest v0.8.1
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking regex v1.4.3
[INFO] [stderr]     Checking sha-1 v0.8.2
[INFO] [stderr]     Checking yasna v0.3.2
[INFO] [stderr]     Checking tungstenite v0.9.2
[INFO] [stderr]     Checking pem v0.7.0
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]     Checking rcgen v0.8.0
[INFO] [stderr]     Checking serde_json v1.0.47
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]    Compiling shrinkwraprs v0.2.3
[INFO] [stderr]     Checking in_stream v0.0.52-alpha2 (/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 1m 00s
[INFO] running `Command { std: "docker" "inspect" "0d7dc6d2511c54e844692bbbb21772f4a06d981dbc7790f538f7d97bdd86b41f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d7dc6d2511c54e844692bbbb21772f4a06d981dbc7790f538f7d97bdd86b41f", kill_on_drop: false }`
[INFO] [stdout] 0d7dc6d2511c54e844692bbbb21772f4a06d981dbc7790f538f7d97bdd86b41f