[INFO] fetching crate bittwiddler 0.0.2... [INFO] checking bittwiddler-0.0.2 against try#a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d for pr-145342-1 [INFO] extracting crate bittwiddler 0.0.2 into /workspace/builds/worker-5-tc2/source [INFO] started tweaking crates.io crate bittwiddler 0.0.2 [INFO] finished tweaking crates.io crate bittwiddler 0.0.2 [INFO] tweaked toml for crates.io crate bittwiddler 0.0.2 written to /workspace/builds/worker-5-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate bittwiddler 0.0.2 on toolchain a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "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" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 4 packages to latest compatible versions [INFO] [stderr] Adding quote v0.5.2 (available: v1.0.40) [INFO] [stderr] Adding syn v0.13.11 (available: v2.0.106) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] e6ff26125c6e21156d7c66046ed5baf62c0754db2f96c3c0ab6a75cb1991b86e [INFO] running `Command { std: "docker" "start" "-a" "e6ff26125c6e21156d7c66046ed5baf62c0754db2f96c3c0ab6a75cb1991b86e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e6ff26125c6e21156d7c66046ed5baf62c0754db2f96c3c0ab6a75cb1991b86e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e6ff26125c6e21156d7c66046ed5baf62c0754db2f96c3c0ab6a75cb1991b86e", kill_on_drop: false }` [INFO] [stdout] e6ff26125c6e21156d7c66046ed5baf62c0754db2f96c3c0ab6a75cb1991b86e [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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 298eca7540c77ed962d1fb0f81ba79cba0e94f278518b503212516cfd7b84ac2 [INFO] running `Command { std: "docker" "start" "-a" "298eca7540c77ed962d1fb0f81ba79cba0e94f278518b503212516cfd7b84ac2", kill_on_drop: false }` [INFO] [stderr] Checking unicode-xid v0.1.0 [INFO] [stderr] Checking proc-macro2 v0.3.8 [INFO] [stderr] Checking quote v0.5.2 [INFO] [stderr] Checking syn v0.13.11 [INFO] [stderr] Checking bittwiddler v0.0.2 (/opt/rustwide/workdir) [INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement [INFO] [stdout] --> src/lib.rs:129:13 [INFO] [stdout] | [INFO] [stdout] 129 | / quote! { [INFO] [stdout] 130 | | impl #input_ident { [INFO] [stdout] 131 | | pub fn decode(x: (#(#bools2),*)) -> Self { [INFO] [stdout] 132 | | match x { [INFO] [stdout] ... | [INFO] [stdout] 138 | | } [INFO] [stdout] | |_____________^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(for_loops_over_fallibles)]` on by default [INFO] [stdout] help: to check pattern in a loop use `while let` [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/quote-0.5.2/src/lib.rs:381:29 [INFO] [stdout] | [INFO] [stdout] 381 ~ nested_tuples_pat!((while let Some(for pounded_var_names!(nested_tuples_pat () $($inner)*) [INFO] [stdout] 382 ~ nested_tuples_pat!(() = ) $($rest)*) [INFO] [stdout] | [INFO] [stdout] help: consider using `if let` to clear intent [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/quote-0.5.2/src/lib.rs:381:29 [INFO] [stdout] | [INFO] [stdout] 381 ~ nested_tuples_pat!((if let Some(for pounded_var_names!(nested_tuples_pat () $($inner)*) [INFO] [stdout] 382 ~ nested_tuples_pat!(() = ) $($rest)*) [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement [INFO] [stdout] --> src/lib.rs:141:13 [INFO] [stdout] | [INFO] [stdout] 141 | / quote! { [INFO] [stdout] 142 | | impl #input_ident { [INFO] [stdout] 143 | | pub fn decode(x: (#(#bools2),*)) -> Result { [INFO] [stdout] 144 | | Ok(match x { [INFO] [stdout] ... | [INFO] [stdout] 150 | | } [INFO] [stdout] | |_____________^ [INFO] [stdout] | [INFO] [stdout] help: to check pattern in a loop use `while let` [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/quote-0.5.2/src/lib.rs:381:29 [INFO] [stdout] | [INFO] [stdout] 381 ~ nested_tuples_pat!((while let Some(for pounded_var_names!(nested_tuples_pat () $($inner)*) [INFO] [stdout] 382 ~ nested_tuples_pat!(() = ) $($rest)*) [INFO] [stdout] | [INFO] [stdout] help: consider using `if let` to clear intent [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/quote-0.5.2/src/lib.rs:381:29 [INFO] [stdout] | [INFO] [stdout] 381 ~ nested_tuples_pat!((if let Some(for pounded_var_names!(nested_tuples_pat () $($inner)*) [INFO] [stdout] 382 ~ nested_tuples_pat!(() = ) $($rest)*) [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement [INFO] [stdout] --> src/lib.rs:129:13 [INFO] [stdout] | [INFO] [stdout] 129 | / quote! { [INFO] [stdout] 130 | | impl #input_ident { [INFO] [stdout] 131 | | pub fn decode(x: (#(#bools2),*)) -> Self { [INFO] [stdout] 132 | | match x { [INFO] [stdout] ... | [INFO] [stdout] 138 | | } [INFO] [stdout] | |_____________^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(for_loops_over_fallibles)]` on by default [INFO] [stdout] help: to check pattern in a loop use `while let` [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/quote-0.5.2/src/lib.rs:381:29 [INFO] [stdout] | [INFO] [stdout] 381 ~ nested_tuples_pat!((while let Some(for pounded_var_names!(nested_tuples_pat () $($inner)*) [INFO] [stdout] 382 ~ nested_tuples_pat!(() = ) $($rest)*) [INFO] [stdout] | [INFO] [stdout] help: consider using `if let` to clear intent [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/quote-0.5.2/src/lib.rs:381:29 [INFO] [stdout] | [INFO] [stdout] 381 ~ nested_tuples_pat!((if let Some(for pounded_var_names!(nested_tuples_pat () $($inner)*) [INFO] [stdout] 382 ~ nested_tuples_pat!(() = ) $($rest)*) [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement [INFO] [stdout] --> src/lib.rs:141:13 [INFO] [stdout] | [INFO] [stdout] 141 | / quote! { [INFO] [stdout] 142 | | impl #input_ident { [INFO] [stdout] 143 | | pub fn decode(x: (#(#bools2),*)) -> Result { [INFO] [stdout] 144 | | Ok(match x { [INFO] [stdout] ... | [INFO] [stdout] 150 | | } [INFO] [stdout] | |_____________^ [INFO] [stdout] | [INFO] [stdout] help: to check pattern in a loop use `while let` [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/quote-0.5.2/src/lib.rs:381:29 [INFO] [stdout] | [INFO] [stdout] 381 ~ nested_tuples_pat!((while let Some(for pounded_var_names!(nested_tuples_pat () $($inner)*) [INFO] [stdout] 382 ~ nested_tuples_pat!(() = ) $($rest)*) [INFO] [stdout] | [INFO] [stdout] help: consider using `if let` to clear intent [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/quote-0.5.2/src/lib.rs:381:29 [INFO] [stdout] | [INFO] [stdout] 381 ~ nested_tuples_pat!((if let Some(for pounded_var_names!(nested_tuples_pat () $($inner)*) [INFO] [stdout] 382 ~ nested_tuples_pat!(() = ) $($rest)*) [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.41s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: syn v0.13.11 [INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1` [INFO] running `Command { std: "docker" "inspect" "298eca7540c77ed962d1fb0f81ba79cba0e94f278518b503212516cfd7b84ac2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "298eca7540c77ed962d1fb0f81ba79cba0e94f278518b503212516cfd7b84ac2", kill_on_drop: false }` [INFO] [stdout] 298eca7540c77ed962d1fb0f81ba79cba0e94f278518b503212516cfd7b84ac2