[INFO] fetching crate cdbc-macro 0.1.23...
[INFO] checking cdbc-macro-0.1.23 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate cdbc-macro 0.1.23 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate cdbc-macro 0.1.23
[INFO] finished tweaking crates.io crate cdbc-macro 0.1.23
[INFO] tweaked toml for crates.io crate cdbc-macro 0.1.23 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate cdbc-macro 0.1.23 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]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 4 packages to latest compatible versions
[INFO] [stderr]       Adding syn v1.0.109 (available: v2.0.104)
[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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 57882038438d0868853500440ff133559b0e766ca36df78ccf4eb4a60c02e09f
[INFO] running `Command { std: "docker" "start" "-a" "57882038438d0868853500440ff133559b0e766ca36df78ccf4eb4a60c02e09f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "57882038438d0868853500440ff133559b0e766ca36df78ccf4eb4a60c02e09f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "57882038438d0868853500440ff133559b0e766ca36df78ccf4eb4a60c02e09f", kill_on_drop: false }`
[INFO] [stdout] 57882038438d0868853500440ff133559b0e766ca36df78ccf4eb4a60c02e09f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 453c8f5f1e5934b3880845198745681d583fc260393ad96056060159882445ad
[INFO] running `Command { std: "docker" "start" "-a" "453c8f5f1e5934b3880845198745681d583fc260393ad96056060159882445ad", kill_on_drop: false }`
[INFO] [stderr]     Checking unicode-ident v1.0.18
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking proc-macro2 v1.0.95
[INFO] [stderr]     Checking quote v1.0.40
[INFO] [stderr]     Checking cdbc-macro v0.1.23 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `quote::ToTokens`
[INFO] [stdout]  --> src/scan.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use quote::ToTokens;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Span`
[INFO] [stdout]  --> src/crud.rs:1:26
[INFO] [stdout]   |
[INFO] [stdout] 1 | use proc_macro2::{Ident, Span, TokenStream};
[INFO] [stdout]   |                          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `quote::ToTokens`
[INFO] [stdout]  --> src/crud.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use quote::ToTokens;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `quote::ToTokens`
[INFO] [stdout]  --> src/scan.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use quote::ToTokens;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Span`
[INFO] [stdout]  --> src/crud.rs:1:26
[INFO] [stdout]   |
[INFO] [stdout] 1 | use proc_macro2::{Ident, Span, TokenStream};
[INFO] [stdout]   |                          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `quote::ToTokens`
[INFO] [stdout]  --> src/crud.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use quote::ToTokens;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/crud.rs:28:17
[INFO] [stdout]    |
[INFO] [stdout] 28 |             let mut crud = do_impl_curd(name, &t, &field_idents);
[INFO] [stdout]    |                 ----^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/crud.rs:28:17
[INFO] [stdout]    |
[INFO] [stdout] 28 |             let mut crud = do_impl_curd(name, &t, &field_idents);
[INFO] [stdout]    |                 ----^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/crud.rs:129:9
[INFO] [stdout]     |
[INFO] [stdout] 129 |     let mut data = quote!(
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/lib.rs:95:13
[INFO] [stdout]    |
[INFO] [stdout] 95 | pub fn crud(args: TokenStream, input: TokenStream) -> TokenStream {
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/crud.rs:129:9
[INFO] [stdout]     |
[INFO] [stdout] 129 |     let mut data = quote!(
[INFO] [stdout]     |         ----^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/lib.rs:95:13
[INFO] [stdout]    |
[INFO] [stdout] 95 | pub fn crud(args: TokenStream, input: TokenStream) -> TokenStream {
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.08s
[INFO] running `Command { std: "docker" "inspect" "453c8f5f1e5934b3880845198745681d583fc260393ad96056060159882445ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "453c8f5f1e5934b3880845198745681d583fc260393ad96056060159882445ad", kill_on_drop: false }`
[INFO] [stdout] 453c8f5f1e5934b3880845198745681d583fc260393ad96056060159882445ad