[INFO] fetching crate lib_annex 0.1.4...
[INFO] checking lib_annex-0.1.4 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate lib_annex 0.1.4 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate lib_annex 0.1.4
[INFO] finished tweaking crates.io crate lib_annex 0.1.4
[INFO] tweaked toml for crates.io crate lib_annex 0.1.4 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate lib_annex 0.1.4 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "generate-lockfile" "--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: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9094bfda5f0f252673fb1dc1a6bb8e09cac11918136d485f3d158d728a23e6f9
[INFO] running `Command { std: "docker" "start" "-a" "9094bfda5f0f252673fb1dc1a6bb8e09cac11918136d485f3d158d728a23e6f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9094bfda5f0f252673fb1dc1a6bb8e09cac11918136d485f3d158d728a23e6f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9094bfda5f0f252673fb1dc1a6bb8e09cac11918136d485f3d158d728a23e6f9", kill_on_drop: false }`
[INFO] [stdout] 9094bfda5f0f252673fb1dc1a6bb8e09cac11918136d485f3d158d728a23e6f9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "RUSTDOCFLAGS=--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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 92830ebd022ca5a53741ac5084ed8034f60b74ad88f986e2c9126036eeac7555
[INFO] running `Command { std: "docker" "start" "-a" "92830ebd022ca5a53741ac5084ed8034f60b74ad88f986e2c9126036eeac7555", kill_on_drop: false }`
[INFO] [stderr]     Checking lib_annex v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/activation.rs:2:24
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub type ActivatorFn = Fn(Num) -> Num;
[INFO] [stdout]   |                        ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub type ActivatorFn = dyn Fn(Num) -> Num;
[INFO] [stdout]   |                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/activation.rs:2:24
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub type ActivatorFn = Fn(Num) -> Num;
[INFO] [stdout]   |                        ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]   = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub type ActivatorFn = dyn Fn(Num) -> Num;
[INFO] [stdout]   |                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `output` is never read
[INFO] [stdout]  --> src/neuron.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct Neuron {
[INFO] [stdout]   |            ------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 9 |     output: Num,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Neuron` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `output` is never read
[INFO] [stdout]  --> src/neuron.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct Neuron {
[INFO] [stdout]   |            ------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 9 |     output: Num,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Neuron` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.24s
[INFO] running `Command { std: "docker" "inspect" "92830ebd022ca5a53741ac5084ed8034f60b74ad88f986e2c9126036eeac7555", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92830ebd022ca5a53741ac5084ed8034f60b74ad88f986e2c9126036eeac7555", kill_on_drop: false }`
[INFO] [stdout] 92830ebd022ca5a53741ac5084ed8034f60b74ad88f986e2c9126036eeac7555