[INFO] cloning repository https://github.com/jguyet/macro-class-render
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jguyet/macro-class-render" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjguyet%2Fmacro-class-render", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjguyet%2Fmacro-class-render'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a5b78cc9cac584f3a4804728cc3bb5a60e872b17
[INFO] testing jguyet/macro-class-render against 1.59.0 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjguyet%2Fmacro-class-render" "/workspace/builds/worker-64/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-64/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jguyet/macro-class-render on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jguyet/macro-class-render
[INFO] finished tweaking git repo https://github.com/jguyet/macro-class-render
[INFO] tweaked toml for git repo https://github.com/jguyet/macro-class-render written to /workspace/builds/worker-64/source/Cargo.toml
[INFO] crate git repo https://github.com/jguyet/macro-class-render already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "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-64/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-64/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d0d696b9133f1798f8530ff8a854ae0a2601f52f61e6cb32c98b3c8c8615949d
[INFO] running `Command { std: "docker" "start" "-a" "d0d696b9133f1798f8530ff8a854ae0a2601f52f61e6cb32c98b3c8c8615949d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d0d696b9133f1798f8530ff8a854ae0a2601f52f61e6cb32c98b3c8c8615949d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0d696b9133f1798f8530ff8a854ae0a2601f52f61e6cb32c98b3c8c8615949d", kill_on_drop: false }`
[INFO] [stdout] d0d696b9133f1798f8530ff8a854ae0a2601f52f61e6cb32c98b3c8c8615949d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-64/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-64/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3b4ebf6add8cc7ffd6a5c5e4ff2327694c00ce7dc9c7f7d6bf405ebfb1326b30
[INFO] running `Command { std: "docker" "start" "-a" "3b4ebf6add8cc7ffd6a5c5e4ff2327694c00ce7dc9c7f7d6bf405ebfb1326b30", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling macroclassrender v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/functions.rs:12:50
[INFO] [stdout]    |
[INFO] [stdout] 12 |        let generated = field.attrs.iter().map(|x| { (
[INFO] [stdout]    |   __________________________________________________^
[INFO] [stdout] 13 |  |             worker(&x, &impl_generics)
[INFO] [stdout]    |  |____________^__________________________^
[INFO] [stdout]    | ||____________|
[INFO] [stdout]    | |
[INFO] [stdout] 14 | |          ) }).collect::<Vec<_>>();
[INFO] [stdout]    | |__________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 12 -     let generated = field.attrs.iter().map(|x| { (
[INFO] [stdout] 12 +     let generated = field.attrs.iter().map(|x| { worker(&x, &impl_generics) }).collect::<Vec<_>>();
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/lib.rs:125:49
[INFO] [stdout]     |
[INFO] [stdout] 125 |            let generated = fields.iter().map(|x| { (
[INFO] [stdout]     |   _________________________________________________^
[INFO] [stdout] 126 |  |             worker(x, &classname)
[INFO] [stdout]     |  |____________^_____________________^
[INFO] [stdout]     | ||____________|
[INFO] [stdout]     | |
[INFO] [stdout] 127 | |          ) }).collect::<Vec<_>>();
[INFO] [stdout]     | |__________^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 125 -         let generated = fields.iter().map(|x| { (
[INFO] [stdout] 125 +         let generated = fields.iter().map(|x| { worker(x, &classname) }).collect::<Vec<_>>();
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::str::<impl str>::trim_left_matches`: superseded by `trim_start_matches`
[INFO] [stdout]   --> src/constructor.rs:84:23
[INFO] [stdout]    |
[INFO] [stdout] 84 |     s_slice = s_slice.trim_left_matches('{');
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_start_matches`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::str::<impl str>::trim_right_matches`: superseded by `trim_end_matches`
[INFO] [stdout]   --> src/constructor.rs:85:23
[INFO] [stdout]    |
[INFO] [stdout] 85 |     s_slice = s_slice.trim_right_matches('}');
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_end_matches`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::str::<impl str>::trim_left_matches`: superseded by `trim_start_matches`
[INFO] [stdout]   --> src/constructor.rs:93:23
[INFO] [stdout]    |
[INFO] [stdout] 93 |     s_slice = s_slice.trim_left_matches('(');
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_start_matches`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::str::<impl str>::trim_right_matches`: superseded by `trim_end_matches`
[INFO] [stdout]   --> src/constructor.rs:94:23
[INFO] [stdout]    |
[INFO] [stdout] 94 |     s_slice = s_slice.trim_right_matches(')');
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_end_matches`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::str::<impl str>::trim_left_matches`: superseded by `trim_start_matches`
[INFO] [stdout]    --> src/functions.rs:111:23
[INFO] [stdout]     |
[INFO] [stdout] 111 |     s_slice = s_slice.trim_left_matches('{');
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_start_matches`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::str::<impl str>::trim_right_matches`: superseded by `trim_end_matches`
[INFO] [stdout]    --> src/functions.rs:112:23
[INFO] [stdout]     |
[INFO] [stdout] 112 |     s_slice = s_slice.trim_right_matches('}');
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_end_matches`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::str::<impl str>::trim_left_matches`: superseded by `trim_start_matches`
[INFO] [stdout]    --> src/functions.rs:120:23
[INFO] [stdout]     |
[INFO] [stdout] 120 |     s_slice = s_slice.trim_left_matches('(');
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_start_matches`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::str::<impl str>::trim_right_matches`: superseded by `trim_end_matches`
[INFO] [stdout]    --> src/functions.rs:121:23
[INFO] [stdout]     |
[INFO] [stdout] 121 |     s_slice = s_slice.trim_right_matches(')');
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_end_matches`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `classname`
[INFO] [stdout]   --> src/functions.rs:29:17
[INFO] [stdout]    |
[INFO] [stdout] 29 |             let classname = Ident::from(impl_generics.clone());
[INFO] [stdout]    |                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_classname`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.66s
[INFO] running `Command { std: "docker" "inspect" "3b4ebf6add8cc7ffd6a5c5e4ff2327694c00ce7dc9c7f7d6bf405ebfb1326b30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b4ebf6add8cc7ffd6a5c5e4ff2327694c00ce7dc9c7f7d6bf405ebfb1326b30", kill_on_drop: false }`
[INFO] [stdout] 3b4ebf6add8cc7ffd6a5c5e4ff2327694c00ce7dc9c7f7d6bf405ebfb1326b30
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-64/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-64/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 83efe06687f16a0954b2647be9ee9257d6cf9663a32d96e4d8c504d12e457a74
[INFO] running `Command { std: "docker" "start" "-a" "83efe06687f16a0954b2647be9ee9257d6cf9663a32d96e4d8c504d12e457a74", kill_on_drop: false }`
[INFO] [stderr]    Compiling macroclassrender v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/functions.rs:12:50
[INFO] [stdout]    |
[INFO] [stdout] 12 |        let generated = field.attrs.iter().map(|x| { (
[INFO] [stdout]    |   __________________________________________________^
[INFO] [stdout] 13 |  |             worker(&x, &impl_generics)
[INFO] [stdout]    |  |____________^__________________________^
[INFO] [stdout]    | ||____________|
[INFO] [stdout]    | |
[INFO] [stdout] 14 | |          ) }).collect::<Vec<_>>();
[INFO] [stdout]    | |__________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 12 -     let generated = field.attrs.iter().map(|x| { (
[INFO] [stdout] 12 +     let generated = field.attrs.iter().map(|x| { worker(&x, &impl_generics) }).collect::<Vec<_>>();
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/lib.rs:125:49
[INFO] [stdout]     |
[INFO] [stdout] 125 |            let generated = fields.iter().map(|x| { (
[INFO] [stdout]     |   _________________________________________________^
[INFO] [stdout] 126 |  |             worker(x, &classname)
[INFO] [stdout]     |  |____________^_____________________^
[INFO] [stdout]     | ||____________|
[INFO] [stdout]     | |
[INFO] [stdout] 127 | |          ) }).collect::<Vec<_>>();
[INFO] [stdout]     | |__________^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 125 -         let generated = fields.iter().map(|x| { (
[INFO] [stdout] 125 +         let generated = fields.iter().map(|x| { worker(x, &classname) }).collect::<Vec<_>>();
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::str::<impl str>::trim_left_matches`: superseded by `trim_start_matches`
[INFO] [stdout]   --> src/constructor.rs:84:23
[INFO] [stdout]    |
[INFO] [stdout] 84 |     s_slice = s_slice.trim_left_matches('{');
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_start_matches`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::str::<impl str>::trim_right_matches`: superseded by `trim_end_matches`
[INFO] [stdout]   --> src/constructor.rs:85:23
[INFO] [stdout]    |
[INFO] [stdout] 85 |     s_slice = s_slice.trim_right_matches('}');
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_end_matches`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::str::<impl str>::trim_left_matches`: superseded by `trim_start_matches`
[INFO] [stdout]   --> src/constructor.rs:93:23
[INFO] [stdout]    |
[INFO] [stdout] 93 |     s_slice = s_slice.trim_left_matches('(');
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_start_matches`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::str::<impl str>::trim_right_matches`: superseded by `trim_end_matches`
[INFO] [stdout]   --> src/constructor.rs:94:23
[INFO] [stdout]    |
[INFO] [stdout] 94 |     s_slice = s_slice.trim_right_matches(')');
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_end_matches`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::str::<impl str>::trim_left_matches`: superseded by `trim_start_matches`
[INFO] [stdout]    --> src/functions.rs:111:23
[INFO] [stdout]     |
[INFO] [stdout] 111 |     s_slice = s_slice.trim_left_matches('{');
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_start_matches`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::str::<impl str>::trim_right_matches`: superseded by `trim_end_matches`
[INFO] [stdout]    --> src/functions.rs:112:23
[INFO] [stdout]     |
[INFO] [stdout] 112 |     s_slice = s_slice.trim_right_matches('}');
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_end_matches`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::str::<impl str>::trim_left_matches`: superseded by `trim_start_matches`
[INFO] [stdout]    --> src/functions.rs:120:23
[INFO] [stdout]     |
[INFO] [stdout] 120 |     s_slice = s_slice.trim_left_matches('(');
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_start_matches`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::str::<impl str>::trim_right_matches`: superseded by `trim_end_matches`
[INFO] [stdout]    --> src/functions.rs:121:23
[INFO] [stdout]     |
[INFO] [stdout] 121 |     s_slice = s_slice.trim_right_matches(')');
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_end_matches`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `classname`
[INFO] [stdout]   --> src/functions.rs:29:17
[INFO] [stdout]    |
[INFO] [stdout] 29 |             let classname = Ident::from(impl_generics.clone());
[INFO] [stdout]    |                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_classname`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/functions.rs:12:50
[INFO] [stdout]    |
[INFO] [stdout] 12 |        let generated = field.attrs.iter().map(|x| { (
[INFO] [stdout]    |   __________________________________________________^
[INFO] [stdout] 13 |  |             worker(&x, &impl_generics)
[INFO] [stdout]    |  |____________^__________________________^
[INFO] [stdout]    | ||____________|
[INFO] [stdout]    | |
[INFO] [stdout] 14 | |          ) }).collect::<Vec<_>>();
[INFO] [stdout]    | |__________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 12 -     let generated = field.attrs.iter().map(|x| { (
[INFO] [stdout] 12 +     let generated = field.attrs.iter().map(|x| { worker(&x, &impl_generics) }).collect::<Vec<_>>();
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/lib.rs:125:49
[INFO] [stdout]     |
[INFO] [stdout] 125 |            let generated = fields.iter().map(|x| { (
[INFO] [stdout]     |   _________________________________________________^
[INFO] [stdout] 126 |  |             worker(x, &classname)
[INFO] [stdout]     |  |____________^_____________________^
[INFO] [stdout]     | ||____________|
[INFO] [stdout]     | |
[INFO] [stdout] 127 | |          ) }).collect::<Vec<_>>();
[INFO] [stdout]     | |__________^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 125 -         let generated = fields.iter().map(|x| { (
[INFO] [stdout] 125 +         let generated = fields.iter().map(|x| { worker(x, &classname) }).collect::<Vec<_>>();
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::str::<impl str>::trim_left_matches`: superseded by `trim_start_matches`
[INFO] [stdout]   --> src/constructor.rs:84:23
[INFO] [stdout]    |
[INFO] [stdout] 84 |     s_slice = s_slice.trim_left_matches('{');
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_start_matches`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::str::<impl str>::trim_right_matches`: superseded by `trim_end_matches`
[INFO] [stdout]   --> src/constructor.rs:85:23
[INFO] [stdout]    |
[INFO] [stdout] 85 |     s_slice = s_slice.trim_right_matches('}');
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_end_matches`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::str::<impl str>::trim_left_matches`: superseded by `trim_start_matches`
[INFO] [stdout]   --> src/constructor.rs:93:23
[INFO] [stdout]    |
[INFO] [stdout] 93 |     s_slice = s_slice.trim_left_matches('(');
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_start_matches`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::str::<impl str>::trim_right_matches`: superseded by `trim_end_matches`
[INFO] [stdout]   --> src/constructor.rs:94:23
[INFO] [stdout]    |
[INFO] [stdout] 94 |     s_slice = s_slice.trim_right_matches(')');
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_end_matches`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::str::<impl str>::trim_left_matches`: superseded by `trim_start_matches`
[INFO] [stdout]    --> src/functions.rs:111:23
[INFO] [stdout]     |
[INFO] [stdout] 111 |     s_slice = s_slice.trim_left_matches('{');
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_start_matches`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::str::<impl str>::trim_right_matches`: superseded by `trim_end_matches`
[INFO] [stdout]    --> src/functions.rs:112:23
[INFO] [stdout]     |
[INFO] [stdout] 112 |     s_slice = s_slice.trim_right_matches('}');
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_end_matches`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::str::<impl str>::trim_left_matches`: superseded by `trim_start_matches`
[INFO] [stdout]    --> src/functions.rs:120:23
[INFO] [stdout]     |
[INFO] [stdout] 120 |     s_slice = s_slice.trim_left_matches('(');
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_start_matches`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `core::str::<impl str>::trim_right_matches`: superseded by `trim_end_matches`
[INFO] [stdout]    --> src/functions.rs:121:23
[INFO] [stdout]     |
[INFO] [stdout] 121 |     s_slice = s_slice.trim_right_matches(')');
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_end_matches`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `classname`
[INFO] [stdout]   --> src/functions.rs:29:17
[INFO] [stdout]    |
[INFO] [stdout] 29 |             let classname = Ident::from(impl_generics.clone());
[INFO] [stdout]    |                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_classname`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.19s
[INFO] running `Command { std: "docker" "inspect" "83efe06687f16a0954b2647be9ee9257d6cf9663a32d96e4d8c504d12e457a74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "83efe06687f16a0954b2647be9ee9257d6cf9663a32d96e4d8c504d12e457a74", kill_on_drop: false }`
[INFO] [stdout] 83efe06687f16a0954b2647be9ee9257d6cf9663a32d96e4d8c504d12e457a74
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-64/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-64/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 206f89f4207174ad0b75de12a9ecc608a8b9b50eb23008cf791a14987c4324a4
[INFO] running `Command { std: "docker" "start" "-a" "206f89f4207174ad0b75de12a9ecc608a8b9b50eb23008cf791a14987c4324a4", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stdout] running 0 tests
[INFO] [stderr]   --> src/functions.rs:12:50
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 12 |        let generated = field.attrs.iter().map(|x| { (
[INFO] [stdout] 
[INFO] [stderr]    |   __________________________________________________^
[INFO] [stderr] 13 |  |             worker(&x, &impl_generics)
[INFO] [stderr]    |  |____________^__________________________^
[INFO] [stderr]    | ||____________|
[INFO] [stderr]    | |
[INFO] [stderr] 14 | |          ) }).collect::<Vec<_>>();
[INFO] [stderr]    | |__________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 12 -     let generated = field.attrs.iter().map(|x| { (
[INFO] [stderr] 12 +     let generated = field.attrs.iter().map(|x| { worker(&x, &impl_generics) }).collect::<Vec<_>>();
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]    --> src/lib.rs:125:49
[INFO] [stderr]     |
[INFO] [stderr] 125 |            let generated = fields.iter().map(|x| { (
[INFO] [stderr]     |   _________________________________________________^
[INFO] [stderr] 126 |  |             worker(x, &classname)
[INFO] [stderr]     |  |____________^_____________________^
[INFO] [stderr]     | ||____________|
[INFO] [stderr]     | |
[INFO] [stderr] 127 | |          ) }).collect::<Vec<_>>();
[INFO] [stderr]     | |__________^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 125 -         let generated = fields.iter().map(|x| { (
[INFO] [stderr] 125 +         let generated = fields.iter().map(|x| { worker(x, &classname) }).collect::<Vec<_>>();
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `core::str::<impl str>::trim_left_matches`: superseded by `trim_start_matches`
[INFO] [stderr]   --> src/constructor.rs:84:23
[INFO] [stderr]    |
[INFO] [stderr] 84 |     s_slice = s_slice.trim_left_matches('{');
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_start_matches`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `core::str::<impl str>::trim_right_matches`: superseded by `trim_end_matches`
[INFO] [stderr]   --> src/constructor.rs:85:23
[INFO] [stderr]    |
[INFO] [stderr] 85 |     s_slice = s_slice.trim_right_matches('}');
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_end_matches`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `core::str::<impl str>::trim_left_matches`: superseded by `trim_start_matches`
[INFO] [stderr]   --> src/constructor.rs:93:23
[INFO] [stderr]    |
[INFO] [stderr] 93 |     s_slice = s_slice.trim_left_matches('(');
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_start_matches`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `core::str::<impl str>::trim_right_matches`: superseded by `trim_end_matches`
[INFO] [stderr]   --> src/constructor.rs:94:23
[INFO] [stderr]    |
[INFO] [stderr] 94 |     s_slice = s_slice.trim_right_matches(')');
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_end_matches`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `core::str::<impl str>::trim_left_matches`: superseded by `trim_start_matches`
[INFO] [stderr]    --> src/functions.rs:111:23
[INFO] [stderr]     |
[INFO] [stderr] 111 |     s_slice = s_slice.trim_left_matches('{');
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_start_matches`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `core::str::<impl str>::trim_right_matches`: superseded by `trim_end_matches`
[INFO] [stderr]    --> src/functions.rs:112:23
[INFO] [stderr]     |
[INFO] [stderr] 112 |     s_slice = s_slice.trim_right_matches('}');
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_end_matches`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `core::str::<impl str>::trim_left_matches`: superseded by `trim_start_matches`
[INFO] [stderr]    --> src/functions.rs:120:23
[INFO] [stderr]     |
[INFO] [stderr] 120 |     s_slice = s_slice.trim_left_matches('(');
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_start_matches`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated associated function `core::str::<impl str>::trim_right_matches`: superseded by `trim_end_matches`
[INFO] [stderr]    --> src/functions.rs:121:23
[INFO] [stderr]     |
[INFO] [stderr] 121 |     s_slice = s_slice.trim_right_matches(')');
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^^^^^ help: replace the use of the deprecated associated function: `trim_end_matches`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `classname`
[INFO] [stderr]   --> src/functions.rs:29:17
[INFO] [stderr]    |
[INFO] [stderr] 29 |             let classname = Ident::from(impl_generics.clone());
[INFO] [stderr]    |                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_classname`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `macroclassrender` (lib) generated 11 warnings
[INFO] [stderr] warning: `macroclassrender` (lib test) generated 11 warnings (11 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/macroclassrender-8d4892d95ea38500)
[INFO] [stderr]    Doc-tests macroclassrender
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]   --> /opt/rustwide/workdir/src/functions.rs:12:50
[INFO] [stderr]    |
[INFO] [stderr] 12 |        let generated = field.attrs.iter().map(|x| { (
[INFO] [stderr]    |   __________________________________________________^
[INFO] [stderr] 13 |  |             worker(&x, &impl_generics)
[INFO] [stderr]    |  |____________^__________________________^
[INFO] [stderr]    | ||____________|
[INFO] [stderr]    | |
[INFO] [stderr] 14 | |          ) }).collect::<Vec<_>>();
[INFO] [stderr]    | |__________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 12 -     let generated = field.attrs.iter().map(|x| { (
[INFO] [stderr] 12 +     let generated = field.attrs.iter().map(|x| { worker(&x, &impl_generics) }).collect::<Vec<_>>();
[INFO] [stderr]    | 
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]    --> /opt/rustwide/workdir/src/lib.rs:125:49
[INFO] [stderr]     |
[INFO] [stderr] 125 |            let generated = fields.iter().map(|x| { (
[INFO] [stderr]     |   _________________________________________________^
[INFO] [stderr] 126 |  |             worker(x, &classname)
[INFO] [stderr]     |  |____________^_____________________^
[INFO] [stderr]     | ||____________|
[INFO] [stderr]     | |
[INFO] [stderr] 127 | |          ) }).collect::<Vec<_>>();
[INFO] [stderr]     | |__________^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 125 -         let generated = fields.iter().map(|x| { (
[INFO] [stderr] 125 +         let generated = fields.iter().map(|x| { worker(x, &classname) }).collect::<Vec<_>>();
[INFO] [stderr]     | 
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "206f89f4207174ad0b75de12a9ecc608a8b9b50eb23008cf791a14987c4324a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "206f89f4207174ad0b75de12a9ecc608a8b9b50eb23008cf791a14987c4324a4", kill_on_drop: false }`
[INFO] [stdout] 206f89f4207174ad0b75de12a9ecc608a8b9b50eb23008cf791a14987c4324a4