[INFO] fetching crate async_chanx 0.1.0-alpha.1...
[INFO] testing async_chanx-0.1.0-alpha.1 against master#5d5ff84130da0d74c6ece368dbe821d8f83fa526 for pr-79296
[INFO] extracting crate async_chanx 0.1.0-alpha.1 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate async_chanx 0.1.0-alpha.1 on toolchain 5d5ff84130da0d74c6ece368dbe821d8f83fa526
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate async_chanx 0.1.0-alpha.1
[INFO] finished tweaking crates.io crate async_chanx 0.1.0-alpha.1
[INFO] tweaked toml for crates.io crate async_chanx 0.1.0-alpha.1 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 300d2a94dd98b32d0b78ef262963bfcb9430c32f11e02d52cf5f8b9eccba5dcb
[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" "300d2a94dd98b32d0b78ef262963bfcb9430c32f11e02d52cf5f8b9eccba5dcb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "300d2a94dd98b32d0b78ef262963bfcb9430c32f11e02d52cf5f8b9eccba5dcb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "300d2a94dd98b32d0b78ef262963bfcb9430c32f11e02d52cf5f8b9eccba5dcb", kill_on_drop: false }`
[INFO] [stdout] 300d2a94dd98b32d0b78ef262963bfcb9430c32f11e02d52cf5f8b9eccba5dcb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d2ec6682478d841382789e846b7cd56cf9db777a1f91d5650c6561113e0c72d1
[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" "d2ec6682478d841382789e846b7cd56cf9db777a1f91d5650c6561113e0c72d1", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.52
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling futures-core v0.3.8
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling proc-macro-nested v0.1.6
[INFO] [stderr]    Compiling futures-sink v0.3.8
[INFO] [stderr]    Compiling slab v0.4.2
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling futures-io v0.3.8
[INFO] [stderr]    Compiling pin-project-lite v0.1.11
[INFO] [stderr]    Compiling bytes v0.5.6
[INFO] [stderr]    Compiling async_chanx v0.1.0-alpha.1 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling futures-channel v0.3.8
[INFO] [stderr]    Compiling tokio v0.2.23
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling pin-project-internal v1.0.2
[INFO] [stderr]    Compiling futures-macro v0.3.8
[INFO] [stderr]    Compiling pin-project v1.0.2
[INFO] [stderr]    Compiling futures-util v0.3.8
[INFO] [stderr]    Compiling futures-executor v0.3.8
[INFO] [stderr]    Compiling futures v0.3.8
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 40.03s
[INFO] running `Command { std: "docker" "inspect" "d2ec6682478d841382789e846b7cd56cf9db777a1f91d5650c6561113e0c72d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2ec6682478d841382789e846b7cd56cf9db777a1f91d5650c6561113e0c72d1", kill_on_drop: false }`
[INFO] [stdout] d2ec6682478d841382789e846b7cd56cf9db777a1f91d5650c6561113e0c72d1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 939f7c056d1b48b4d3f1789d80278acd43da8e181aea049cc9b922057715dc6c
[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" "939f7c056d1b48b4d3f1789d80278acd43da8e181aea049cc9b922057715dc6c", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling cache-padded v1.1.1
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling parking v2.0.0
[INFO] [stderr]    Compiling waker-fn v1.1.0
[INFO] [stderr]    Compiling fastrand v1.4.0
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling async-task v4.0.3
[INFO] [stderr]    Compiling vec-arena v1.0.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling atomic-waker v1.0.0
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling assert_matches v1.4.0
[INFO] [stderr]    Compiling pretty_assertions v0.6.1
[INFO] [stderr]    Compiling concurrent-queue v1.2.2
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling async_executors v0.3.0
[INFO] [stderr]    Compiling walkdir v2.3.1
[INFO] [stderr]    Compiling bstr v0.2.14
[INFO] [stderr]    Compiling async-attributes v1.1.1
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]    Compiling async-channel v1.5.1
[INFO] [stderr]    Compiling futures-test v0.3.8
[INFO] [stderr]    Compiling futures-lite v1.11.2
[INFO] [stderr]    Compiling kv-log-macro v1.0.7
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling crossbeam-utils v0.8.1
[INFO] [stderr]    Compiling memoffset v0.6.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]    Compiling csv v1.1.5
[INFO] [stderr]    Compiling async-executor v1.4.0
[INFO] [stderr]    Compiling blocking v1.0.2
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling nb-connect v1.0.2
[INFO] [stderr]    Compiling polling v2.0.2
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.1
[INFO] [stderr]    Compiling crossbeam-channel v0.5.0
[INFO] [stderr]    Compiling async-io v1.2.0
[INFO] [stderr]    Compiling crossbeam-deque v0.8.0
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]    Compiling async-global-executor v1.4.3
[INFO] [stderr]    Compiling plotters v0.2.15
[INFO] [stderr]    Compiling async-std v1.7.0
[INFO] [stderr]    Compiling criterion v0.3.3
[INFO] [stderr]    Compiling async_chanx v0.1.0-alpha.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 43.81s
[INFO] running `Command { std: "docker" "inspect" "939f7c056d1b48b4d3f1789d80278acd43da8e181aea049cc9b922057715dc6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "939f7c056d1b48b4d3f1789d80278acd43da8e181aea049cc9b922057715dc6c", kill_on_drop: false }`
[INFO] [stdout] 939f7c056d1b48b4d3f1789d80278acd43da8e181aea049cc9b922057715dc6c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 08b126a28556a18769f8decef0fe5d30cf664051e619672956dd093022d3e3e7
[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" "08b126a28556a18769f8decef0fe5d30cf664051e619672956dd093022d3e3e7", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.18s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/async_chanx-6129dacfd9059f26
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests async_chanx
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 80) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "08b126a28556a18769f8decef0fe5d30cf664051e619672956dd093022d3e3e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08b126a28556a18769f8decef0fe5d30cf664051e619672956dd093022d3e3e7", kill_on_drop: false }`
[INFO] [stdout] 08b126a28556a18769f8decef0fe5d30cf664051e619672956dd093022d3e3e7