[INFO] crate single_value_channel 1.2.1 is already in cache
[INFO] testing single_value_channel-1.2.1 against beta-2019-09-28 for beta-1.39-1
[INFO] extracting crate single_value_channel 1.2.1 into work/builds/worker-9/source
[INFO] validating manifest of crates.io crate single_value_channel 1.2.1 on toolchain beta-2019-09-28
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "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 work/builds/worker-9/source/Cargo.toml
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-9/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "+beta-2019-09-28" "build" "--frozen"`
[INFO] [stdout] 5a4638319378db40793d551190c6a393d27fa43582dc26910d047c8cfd61cc9e
[INFO] running `"docker" "start" "-a" "5a4638319378db40793d551190c6a393d27fa43582dc26910d047c8cfd61cc9e"`
[INFO] [stderr]    Compiling single_value_channel v1.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.23s
[INFO] running `"docker" "inspect" "5a4638319378db40793d551190c6a393d27fa43582dc26910d047c8cfd61cc9e"`
[INFO] running `"docker" "rm" "-f" "5a4638319378db40793d551190c6a393d27fa43582dc26910d047c8cfd61cc9e"`
[INFO] [stdout] 5a4638319378db40793d551190c6a393d27fa43582dc26910d047c8cfd61cc9e
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-9/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "+beta-2019-09-28" "test" "--frozen" "--no-run"`
[INFO] [stdout] e6303a82030285c9bb3131a9bb32d790d4e076147900124e211fd990b31c996a
[INFO] running `"docker" "start" "-a" "e6303a82030285c9bb3131a9bb32d790d4e076147900124e211fd990b31c996a"`
[INFO] [stderr]    Compiling single_value_channel v1.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.53s
[INFO] running `"docker" "inspect" "e6303a82030285c9bb3131a9bb32d790d4e076147900124e211fd990b31c996a"`
[INFO] running `"docker" "rm" "-f" "e6303a82030285c9bb3131a9bb32d790d4e076147900124e211fd990b31c996a"`
[INFO] [stdout] e6303a82030285c9bb3131a9bb32d790d4e076147900124e211fd990b31c996a
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-9/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "+beta-2019-09-28" "test" "--frozen"`
[INFO] [stdout] ab31e3ce5f08a73fe35fa19276879c4ae25cbcbf7f9a2fbfdd820e321ee2ba29
[INFO] running `"docker" "start" "-a" "ab31e3ce5f08a73fe35fa19276879c4ae25cbcbf7f9a2fbfdd820e321ee2ba29"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/single_value_channel-eae949bfbca09d91
[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::no_args_channel ... ok
[INFO] [stdout] test test::multiple_updaters ... ok
[INFO] [stdout] test test::receiver_has_no_updater ... ok
[INFO] [stdout] test test::send_recv_value ... ok
[INFO] [stdout] test test::send_recv_option ... ok
[INFO] [stdout] test test::non_blocking_write_during_read ... ok
[INFO] [stdout] test test::unwrap_non_debug ... ok
[INFO] [stdout] test test::updater_has_no_receiver ... ok
[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] [stderr]    Doc-tests single_value_channel
[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" "ab31e3ce5f08a73fe35fa19276879c4ae25cbcbf7f9a2fbfdd820e321ee2ba29"`
[INFO] running `"docker" "rm" "-f" "ab31e3ce5f08a73fe35fa19276879c4ae25cbcbf7f9a2fbfdd820e321ee2ba29"`
[INFO] [stdout] ab31e3ce5f08a73fe35fa19276879c4ae25cbcbf7f9a2fbfdd820e321ee2ba29