[INFO] fetching crate iron-middlefiddle 0.1.1...
[INFO] checking iron-middlefiddle-0.1.1 against 1.55.0 for beta-1.56-3
[INFO] extracting crate iron-middlefiddle 0.1.1 into /workspace/builds/worker-32/source
[INFO] validating manifest of crates.io crate iron-middlefiddle 0.1.1 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate iron-middlefiddle 0.1.1
[INFO] finished tweaking crates.io crate iron-middlefiddle 0.1.1
[INFO] tweaked toml for crates.io crate iron-middlefiddle 0.1.1 written to /workspace/builds/worker-32/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0bc0efb86aed21544710f80e3e26688ff5a68de3e1299163d7a79baaf8d8e301
[INFO] running `Command { std: "docker" "start" "-a" "0bc0efb86aed21544710f80e3e26688ff5a68de3e1299163d7a79baaf8d8e301", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0bc0efb86aed21544710f80e3e26688ff5a68de3e1299163d7a79baaf8d8e301", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0bc0efb86aed21544710f80e3e26688ff5a68de3e1299163d7a79baaf8d8e301", kill_on_drop: false }`
[INFO] [stdout] 0bc0efb86aed21544710f80e3e26688ff5a68de3e1299163d7a79baaf8d8e301
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-32/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 32d32583deffbdf270da5731e0d7d3d48cac772504b9f335e913f3dcb68385fe
[INFO] running `Command { std: "docker" "start" "-a" "32d32583deffbdf270da5731e0d7d3d48cac772504b9f335e913f3dcb68385fe", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking traitobject v0.1.0
[INFO] [stderr]     Checking modifier v0.1.0
[INFO] [stderr]     Checking conduit-mime-types v0.7.3
[INFO] [stderr]     Checking unsafe-any v0.4.2
[INFO] [stderr]     Checking hyper v0.10.16
[INFO] [stderr]     Checking error v0.1.9
[INFO] [stderr]     Checking typemap v0.3.3
[INFO] [stderr]     Checking plugin v0.2.6
[INFO] [stderr]     Checking iron v0.5.1
[INFO] [stderr]     Checking iron-middlefiddle v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:89:26
[INFO] [stdout]    |
[INFO] [stdout] 89 |     BeforeMiddleware(Box<iron::BeforeMiddleware>),
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn iron::BeforeMiddleware`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:103:25
[INFO] [stdout]     |
[INFO] [stdout] 103 |     AfterMiddleware(Box<iron::AfterMiddleware>),
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn iron::AfterMiddleware`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:116:29
[INFO] [stdout]     |
[INFO] [stdout] 116 |     pub handler: Option<Box<Handler>>,
[INFO] [stdout]     |                             ^^^^^^^ help: use `dyn`: `dyn Handler`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/lib.rs:89:26
[INFO] [stdout]    |
[INFO] [stdout] 89 |     BeforeMiddleware(Box<iron::BeforeMiddleware>),
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn iron::BeforeMiddleware`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:103:25
[INFO] [stdout]     |
[INFO] [stdout] 103 |     AfterMiddleware(Box<iron::AfterMiddleware>),
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn iron::AfterMiddleware`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/lib.rs:116:29
[INFO] [stdout]     |
[INFO] [stdout] 116 |     pub handler: Option<Box<Handler>>,
[INFO] [stdout]     |                             ^^^^^^^ help: use `dyn`: `dyn Handler`
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[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 5.60s
[INFO] running `Command { std: "docker" "inspect" "32d32583deffbdf270da5731e0d7d3d48cac772504b9f335e913f3dcb68385fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32d32583deffbdf270da5731e0d7d3d48cac772504b9f335e913f3dcb68385fe", kill_on_drop: false }`
[INFO] [stdout] 32d32583deffbdf270da5731e0d7d3d48cac772504b9f335e913f3dcb68385fe
