[INFO] fetching crate single_value_channel 1.2.1...
[INFO] testing single_value_channel-1.2.1 against 1.44.0 for beta-1.45-1
[INFO] extracting crate single_value_channel 1.2.1 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate single_value_channel 1.2.1 on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate single_value_channel 1.2.1
[INFO] finished tweaking crates.io crate single_value_channel 1.2.1
[INFO] tweaked toml for crates.io crate single_value_channel 1.2.1 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=warn" "-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" "+1.44.0" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a1d6efc09afb906d0bd121595d3624c874b41d686b50aec3f7398fcbb22b8b8f
[INFO] running `"docker" "start" "-a" "a1d6efc09afb906d0bd121595d3624c874b41d686b50aec3f7398fcbb22b8b8f"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling single_value_channel v1.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.17s
[INFO] running `"docker" "inspect" "a1d6efc09afb906d0bd121595d3624c874b41d686b50aec3f7398fcbb22b8b8f"`
[INFO] running `"docker" "rm" "-f" "a1d6efc09afb906d0bd121595d3624c874b41d686b50aec3f7398fcbb22b8b8f"`
[INFO] [stdout] a1d6efc09afb906d0bd121595d3624c874b41d686b50aec3f7398fcbb22b8b8f
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=warn" "-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" "+1.44.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] b64a7138c8755277640078ed765cc5653f5aae5cba6bf04f0d7699f666d0bb82
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "b64a7138c8755277640078ed765cc5653f5aae5cba6bf04f0d7699f666d0bb82"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling single_value_channel v1.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.68s
[INFO] running `"docker" "inspect" "b64a7138c8755277640078ed765cc5653f5aae5cba6bf04f0d7699f666d0bb82"`
[INFO] running `"docker" "rm" "-f" "b64a7138c8755277640078ed765cc5653f5aae5cba6bf04f0d7699f666d0bb82"`
[INFO] [stdout] b64a7138c8755277640078ed765cc5653f5aae5cba6bf04f0d7699f666d0bb82
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=warn" "-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" "+1.44.0" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f42eb189b5be593b59c5bbb5351c29dfa54d7180a7d8ab3128fd557709eb32fe
[INFO] running `"docker" "start" "-a" "f42eb189b5be593b59c5bbb5351c29dfa54d7180a7d8ab3128fd557709eb32fe"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/single_value_channel-94aa0b4915390aab
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test test::error_writing_to_dead_reader ... ok
[INFO] [stdout] test test::latest_mut ... ok
[INFO] [stdout] test test::receiver_has_no_updater ... ok
[INFO] [stdout] test test::no_args_channel ... ok
[INFO] [stdout] test test::non_blocking_write_during_read ... ok
[INFO] [stdout] test test::updater_has_no_receiver ... ok
[INFO] [stdout] test test::send_recv_option ... ok
[INFO] [stdout] test test::send_recv_value ... ok
[INFO] [stdout] test test::unwrap_non_debug ... ok
[INFO] [stdout] test test::multiple_updaters ... ok
[INFO] [stderr]    Doc-tests single_value_channel
[INFO] [stdout] test test::concurrent_send_recv ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs -  (line 18) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "f42eb189b5be593b59c5bbb5351c29dfa54d7180a7d8ab3128fd557709eb32fe"`
[INFO] running `"docker" "rm" "-f" "f42eb189b5be593b59c5bbb5351c29dfa54d7180a7d8ab3128fd557709eb32fe"`
[INFO] [stdout] f42eb189b5be593b59c5bbb5351c29dfa54d7180a7d8ab3128fd557709eb32fe