[INFO] fetching crate single_value_channel 1.2.2...
[INFO] testing single_value_channel-1.2.2 against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] extracting crate single_value_channel 1.2.2 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate single_value_channel 1.2.2 on toolchain 62efba8a050c64249dab942951bb28f710208bc8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate single_value_channel 1.2.2
[INFO] finished tweaking crates.io crate single_value_channel 1.2.2
[INFO] tweaked toml for crates.io crate single_value_channel 1.2.2 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dc26fc86ff1371f4690cd30bed0c221c7e18564b9dc1bae9153e79e86d28312f
[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" "dc26fc86ff1371f4690cd30bed0c221c7e18564b9dc1bae9153e79e86d28312f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dc26fc86ff1371f4690cd30bed0c221c7e18564b9dc1bae9153e79e86d28312f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc26fc86ff1371f4690cd30bed0c221c7e18564b9dc1bae9153e79e86d28312f", kill_on_drop: false }`
[INFO] [stdout] dc26fc86ff1371f4690cd30bed0c221c7e18564b9dc1bae9153e79e86d28312f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 643c67948f31f4b763bf044ec8d88d5db482f22c702dd631c74851ab9d13085b
[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" "643c67948f31f4b763bf044ec8d88d5db482f22c702dd631c74851ab9d13085b", kill_on_drop: false }`
[INFO] [stderr]    Compiling single_value_channel v1.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.23s
[INFO] running `Command { std: "docker" "inspect" "643c67948f31f4b763bf044ec8d88d5db482f22c702dd631c74851ab9d13085b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "643c67948f31f4b763bf044ec8d88d5db482f22c702dd631c74851ab9d13085b", kill_on_drop: false }`
[INFO] [stdout] 643c67948f31f4b763bf044ec8d88d5db482f22c702dd631c74851ab9d13085b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ec9b8d871e55511cbb0cae9b677e0e68fdc95c1e0b11cf225066f83e931dcf0e
[INFO] running `Command { std: "docker" "start" "-a" "ec9b8d871e55511cbb0cae9b677e0e68fdc95c1e0b11cf225066f83e931dcf0e", kill_on_drop: false }`
[INFO] [stderr]    Compiling single_value_channel v1.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.02s
[INFO] running `Command { std: "docker" "inspect" "ec9b8d871e55511cbb0cae9b677e0e68fdc95c1e0b11cf225066f83e931dcf0e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec9b8d871e55511cbb0cae9b677e0e68fdc95c1e0b11cf225066f83e931dcf0e", kill_on_drop: false }`
[INFO] [stdout] ec9b8d871e55511cbb0cae9b677e0e68fdc95c1e0b11cf225066f83e931dcf0e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8e320b8e582f100e773aa0b5e94a31c2346206ade6b0038aa39d4eb02f02032c
[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" "8e320b8e582f100e773aa0b5e94a31c2346206ade6b0038aa39d4eb02f02032c", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] running 11 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/single_value_channel-a38fd01c480dad84)
[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] [stderr]    Doc-tests single_value_channel
[INFO] [stdout] test test::updater_has_no_receiver ... ok
[INFO] [stdout] test test::error_writing_to_dead_reader ... ok
[INFO] [stdout] test test::concurrent_send_recv ... ok
[INFO] [stdout] test test::receiver_has_no_updater ... 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::non_blocking_write_during_read ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[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; finished in 0.48s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "8e320b8e582f100e773aa0b5e94a31c2346206ade6b0038aa39d4eb02f02032c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e320b8e582f100e773aa0b5e94a31c2346206ade6b0038aa39d4eb02f02032c", kill_on_drop: false }`
[INFO] [stdout] 8e320b8e582f100e773aa0b5e94a31c2346206ade6b0038aa39d4eb02f02032c