[INFO] crate mut_guard 0.1.0 is already in cache
[INFO] testing mut_guard-0.1.0 against 1.45.2 for beta-1.46-1
[INFO] extracting crate mut_guard 0.1.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate mut_guard 0.1.0 on toolchain 1.45.2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mut_guard 0.1.0
[INFO] finished tweaking crates.io crate mut_guard 0.1.0
[INFO] tweaked toml for crates.io crate mut_guard 0.1.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 66747892ca3e8013b00866b97e62589c220fe998a5818dc0ecb9adebd42423ae
[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" "66747892ca3e8013b00866b97e62589c220fe998a5818dc0ecb9adebd42423ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "66747892ca3e8013b00866b97e62589c220fe998a5818dc0ecb9adebd42423ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66747892ca3e8013b00866b97e62589c220fe998a5818dc0ecb9adebd42423ae", kill_on_drop: false }`
[INFO] [stdout] 66747892ca3e8013b00866b97e62589c220fe998a5818dc0ecb9adebd42423ae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "build" "--frozen" "--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] 9daf3d3693658f9b35316dbc2fec6fe0f892c36a2be5c65739c1e2674c3037e5
[INFO] running `Command { std: "docker" "start" "-a" "9daf3d3693658f9b35316dbc2fec6fe0f892c36a2be5c65739c1e2674c3037e5", kill_on_drop: false }`
[INFO] [stderr]    Compiling mut_guard v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:211:12
[INFO] [stdout]     |
[INFO] [stdout] 211 |     f: Box<'a + FnMut(&mut T)>,
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn 'a + FnMut(&mut T)`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.28s
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "9daf3d3693658f9b35316dbc2fec6fe0f892c36a2be5c65739c1e2674c3037e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9daf3d3693658f9b35316dbc2fec6fe0f892c36a2be5c65739c1e2674c3037e5", kill_on_drop: false }`
[INFO] [stdout] 9daf3d3693658f9b35316dbc2fec6fe0f892c36a2be5c65739c1e2674c3037e5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e5b2e8b606977057047610799fe23f77e7c1049a693ffda4c860944243d6264e
[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" "e5b2e8b606977057047610799fe23f77e7c1049a693ffda4c860944243d6264e", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.37
[INFO] [stderr]    Compiling serde v1.0.114
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:211:12
[INFO] [stdout]     |
[INFO] [stdout] 211 |     f: Box<'a + FnMut(&mut T)>,
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn 'a + FnMut(&mut T)`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]    Compiling mut_guard v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:211:12
[INFO] [stdout]     |
[INFO] [stdout] 211 |     f: Box<'a + FnMut(&mut T)>,
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn 'a + FnMut(&mut T)`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 27.79s
[INFO] running `Command { std: "docker" "inspect" "e5b2e8b606977057047610799fe23f77e7c1049a693ffda4c860944243d6264e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e5b2e8b606977057047610799fe23f77e7c1049a693ffda4c860944243d6264e", kill_on_drop: false }`
[INFO] [stdout] e5b2e8b606977057047610799fe23f77e7c1049a693ffda4c860944243d6264e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9d6f03296f782a467ccbb59abb8da23266815057ee08c7967c85bdaa84dca6a4
[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" "9d6f03296f782a467ccbb59abb8da23266815057ee08c7967c85bdaa84dca6a4", kill_on_drop: false }`
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:211:12
[INFO] [stderr]     |
[INFO] [stderr] 211 |     f: Box<'a + FnMut(&mut T)>,
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn 'a + FnMut(&mut T)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/lib.rs:211:12
[INFO] [stderr]     |
[INFO] [stderr] 211 |     f: Box<'a + FnMut(&mut T)>,
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn 'a + FnMut(&mut T)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/mut_guard-ba460f3ae9a76557
[INFO] [stdout] running 4 tests
[INFO] [stdout] test tests::count_access ... ok
[INFO] [stdout] test tests::bank ... ok
[INFO] [stdout] test tests::less_than ... ok
[INFO] [stdout] test tests::invariant_bank ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests mut_guard
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/lib.rs -  (line 57) ... ok
[INFO] [stdout] test src/lib.rs -  (line 17) ... ok
[INFO] [stdout] test src/lib.rs -  (line 85) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "9d6f03296f782a467ccbb59abb8da23266815057ee08c7967c85bdaa84dca6a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d6f03296f782a467ccbb59abb8da23266815057ee08c7967c85bdaa84dca6a4", kill_on_drop: false }`
[INFO] [stdout] 9d6f03296f782a467ccbb59abb8da23266815057ee08c7967c85bdaa84dca6a4