[INFO] fetching crate maybe-sync 0.1.1...
[INFO] testing maybe-sync-0.1.1 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate maybe-sync 0.1.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate maybe-sync 0.1.1 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate maybe-sync 0.1.1
[INFO] finished tweaking crates.io crate maybe-sync 0.1.1
[INFO] tweaked toml for crates.io crate maybe-sync 0.1.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded lock_api v0.3.4
[INFO] [stderr]   Downloaded smallvec v1.6.0
[INFO] [stderr]   Downloaded parking_lot_core v0.7.2
[INFO] [stderr]   Downloaded parking_lot v0.10.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", 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] a6c32d378948868115267720856c7398a4c617486d27322bb5840d49a619df68
[INFO] running `Command { std: "docker" "start" "-a" "a6c32d378948868115267720856c7398a4c617486d27322bb5840d49a619df68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a6c32d378948868115267720856c7398a4c617486d27322bb5840d49a619df68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6c32d378948868115267720856c7398a4c617486d27322bb5840d49a619df68", kill_on_drop: false }`
[INFO] [stdout] a6c32d378948868115267720856c7398a4c617486d27322bb5840d49a619df68
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=warn" "-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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cc32026c7667510aef25af3bc71c40a5e9f3cba236742e60c2ffd9741bbd6513
[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" "cc32026c7667510aef25af3bc71c40a5e9f3cba236742e60c2ffd9741bbd6513", kill_on_drop: false }`
[INFO] [stderr]    Compiling maybe-sync v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.37s
[INFO] running `Command { std: "docker" "inspect" "cc32026c7667510aef25af3bc71c40a5e9f3cba236742e60c2ffd9741bbd6513", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc32026c7667510aef25af3bc71c40a5e9f3cba236742e60c2ffd9741bbd6513", kill_on_drop: false }`
[INFO] [stdout] cc32026c7667510aef25af3bc71c40a5e9f3cba236742e60c2ffd9741bbd6513
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=warn" "-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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b8ab028f8b88ada09c127bb16605f23d78656c87c551f8119aa6c5e6435cf513
[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" "b8ab028f8b88ada09c127bb16605f23d78656c87c551f8119aa6c5e6435cf513", kill_on_drop: false }`
[INFO] [stderr]    Compiling maybe-sync v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.72s
[INFO] running `Command { std: "docker" "inspect" "b8ab028f8b88ada09c127bb16605f23d78656c87c551f8119aa6c5e6435cf513", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8ab028f8b88ada09c127bb16605f23d78656c87c551f8119aa6c5e6435cf513", kill_on_drop: false }`
[INFO] [stdout] b8ab028f8b88ada09c127bb16605f23d78656c87c551f8119aa6c5e6435cf513
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=warn" "-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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", 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] 72d0061fb39ea059492e897d72f71493f82002eb12737e7acfe9079d02dbe2b9
[INFO] running `Command { std: "docker" "start" "-a" "72d0061fb39ea059492e897d72f71493f82002eb12737e7acfe9079d02dbe2b9", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/maybe_sync-88080562cac17935
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests maybe-sync
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test src/lib.rs - unsync::MaybeSync (line 310) ... ok
[INFO] [stdout] test src/lib.rs - dyn_maybe_send_sync (line 647) ... ok
[INFO] [stdout] test src/lib.rs - dyn_maybe_sync (line 603) ... ok
[INFO] [stdout] test src/lib.rs - unsync::MaybeSend (line 277) ... ok
[INFO] [stdout] test src/lib.rs - dyn_maybe_send (line 558) ... ok
[INFO] [stdout] test src/lib.rs - unsync::Rc (line 351) ... ok
[INFO] [stdout] test src/lib.rs - unsync::Mutex (line 378) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.15s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "72d0061fb39ea059492e897d72f71493f82002eb12737e7acfe9079d02dbe2b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72d0061fb39ea059492e897d72f71493f82002eb12737e7acfe9079d02dbe2b9", kill_on_drop: false }`
[INFO] [stdout] 72d0061fb39ea059492e897d72f71493f82002eb12737e7acfe9079d02dbe2b9