[INFO] fetching crate transaction 0.2.1...
[INFO] checking transaction-0.2.1 against try#45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 for pr-83744
[INFO] extracting crate transaction 0.2.1 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate transaction 0.2.1 on toolchain 45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate transaction 0.2.1
[INFO] finished tweaking crates.io crate transaction 0.2.1
[INFO] tweaked toml for crates.io crate transaction 0.2.1 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded mdo v0.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b2b880c98e78dcf6854d7abbd3dc8ced08ce936b6a974e2b3319271d6e99a1d7
[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" "b2b880c98e78dcf6854d7abbd3dc8ced08ce936b6a974e2b3319271d6e99a1d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b2b880c98e78dcf6854d7abbd3dc8ced08ce936b6a974e2b3319271d6e99a1d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2b880c98e78dcf6854d7abbd3dc8ced08ce936b6a974e2b3319271d6e99a1d7", kill_on_drop: false }`
[INFO] [stdout] b2b880c98e78dcf6854d7abbd3dc8ced08ce936b6a974e2b3319271d6e99a1d7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1e8c59fc0bb306bf683d8ffbac70632a6cf9f857721679251e026fae6d687ff0
[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" "1e8c59fc0bb306bf683d8ffbac70632a6cf9f857721679251e026fae6d687ff0", kill_on_drop: false }`
[INFO] [stderr]     Checking transaction v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/loop_fn.rs:23:27
[INFO] [stdout]    |
[INFO] [stdout] 23 |     _phantom: PhantomData<(Ctx)>,
[INFO] [stdout]    |                           ^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:168:31
[INFO] [stdout]     |
[INFO] [stdout] 168 |     fn boxed<'a>(self) -> Box<Transaction<Ctx = Self::Ctx, Item = Self::Item, Err = Self::Err> + 'a>
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Transaction<Ctx = Self::Ctx, Item = Self::Item, Err = Self::Err> + 'a`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:423:33
[INFO] [stdout]     |
[INFO] [stdout] 423 | impl<Ctx, T, E> Transaction for Fn(&mut Ctx) -> Result<T, E> {
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut Ctx) -> Result<T, E>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/loop_fn.rs:23:27
[INFO] [stdout]    |
[INFO] [stdout] 23 |     _phantom: PhantomData<(Ctx)>,
[INFO] [stdout]    |                           ^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:168:31
[INFO] [stdout]     |
[INFO] [stdout] 168 |     fn boxed<'a>(self) -> Box<Transaction<Ctx = Self::Ctx, Item = Self::Item, Err = Self::Err> + 'a>
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Transaction<Ctx = Self::Ctx, Item = Self::Item, Err = Self::Err> + 'a`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:423:33
[INFO] [stdout]     |
[INFO] [stdout] 423 | impl<Ctx, T, E> Transaction for Fn(&mut Ctx) -> Result<T, E> {
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&mut Ctx) -> Result<T, E>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.99s
[INFO] running `Command { std: "docker" "inspect" "1e8c59fc0bb306bf683d8ffbac70632a6cf9f857721679251e026fae6d687ff0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e8c59fc0bb306bf683d8ffbac70632a6cf9f857721679251e026fae6d687ff0", kill_on_drop: false }`
[INFO] [stdout] 1e8c59fc0bb306bf683d8ffbac70632a6cf9f857721679251e026fae6d687ff0