[INFO] fetching crate slog-extra 0.1.2...
[INFO] checking slog-extra-0.1.2 against try#ddfd70ee3c3748e597b32f416b0d15a4f6e37685 for pr-87050
[INFO] extracting crate slog-extra 0.1.2 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate slog-extra 0.1.2 on toolchain ddfd70ee3c3748e597b32f416b0d15a4f6e37685
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate slog-extra 0.1.2
[INFO] finished tweaking crates.io crate slog-extra 0.1.2
[INFO] tweaked toml for crates.io crate slog-extra 0.1.2 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a20f4111e4fe5d3f657d2b98626f738f6ed1a67ec3e1016648896ce30d75006a
[INFO] running `Command { std: "docker" "start" "-a" "a20f4111e4fe5d3f657d2b98626f738f6ed1a67ec3e1016648896ce30d75006a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a20f4111e4fe5d3f657d2b98626f738f6ed1a67ec3e1016648896ce30d75006a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a20f4111e4fe5d3f657d2b98626f738f6ed1a67ec3e1016648896ce30d75006a", kill_on_drop: false }`
[INFO] [stdout] a20f4111e4fe5d3f657d2b98626f738f6ed1a67ec3e1016648896ce30d75006a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 09b3d40ec48e167c37d9fd536c0e421fe9fd6e20349e48f10dffdd80160eb878
[INFO] running `Command { std: "docker" "start" "-a" "09b3d40ec48e167c37d9fd536c0e421fe9fd6e20349e48f10dffdd80160eb878", kill_on_drop: false }`
[INFO] [stderr]     Checking slog v1.7.1
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking slog-extra v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> lib.rs:54:62
[INFO] [stdout]    |
[INFO] [stdout] 54 | ...                   .map(|&(k, ref v)| (k, v as &Serialize))
[INFO] [stdout]    |                                                    ^^^^^^^^^ help: use `dyn`: `dyn Serialize`
[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]   --> lib.rs:94:44
[INFO] [stdout]    |
[INFO] [stdout] 94 | type RecordValues = Vec<(&'static str, Box<Serialize + Send>)>;
[INFO] [stdout]    |                                            ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Serialize + Send`
[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: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> lib.rs:194:13
[INFO] [stdout]     |
[INFO] [stdout] 194 |             try!(v.serialize(record, k, &mut ser))
[INFO] [stdout]     |             ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> lib.rs:222:43
[INFO] [stdout]     |
[INFO] [stdout] 222 |     record_values: Vec<(&'static str, Box<Serialize + Send>)>,
[INFO] [stdout]     |                                           ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Serialize + Send`
[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]   --> lib.rs:54:62
[INFO] [stdout]    |
[INFO] [stdout] 54 | ...                   .map(|&(k, ref v)| (k, v as &Serialize))
[INFO] [stdout]    |                                                    ^^^^^^^^^ help: use `dyn`: `dyn Serialize`
[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]   --> lib.rs:94:44
[INFO] [stdout]    |
[INFO] [stdout] 94 | type RecordValues = Vec<(&'static str, Box<Serialize + Send>)>;
[INFO] [stdout]    |                                            ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Serialize + Send`
[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: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> lib.rs:194:13
[INFO] [stdout]     |
[INFO] [stdout] 194 |             try!(v.serialize(record, k, &mut ser))
[INFO] [stdout]     |             ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> lib.rs:222:43
[INFO] [stdout]     |
[INFO] [stdout] 222 |     record_values: Vec<(&'static str, Box<Serialize + Send>)>,
[INFO] [stdout]     |                                           ^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Serialize + Send`
[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: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.47s
[INFO] running `Command { std: "docker" "inspect" "09b3d40ec48e167c37d9fd536c0e421fe9fd6e20349e48f10dffdd80160eb878", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "09b3d40ec48e167c37d9fd536c0e421fe9fd6e20349e48f10dffdd80160eb878", kill_on_drop: false }`
[INFO] [stdout] 09b3d40ec48e167c37d9fd536c0e421fe9fd6e20349e48f10dffdd80160eb878