[INFO] cloning repository https://github.com/mmmpa/treeer [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mmmpa/treeer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmmmpa%2Ftreeer", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmmmpa%2Ftreeer'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] df131f871c0e09b8d4baae8912c033d079809288 [INFO] checking mmmpa/treeer against try#3c75d5844aa65b4aa19243ac44ceda49fe4e61ca for pr-143545 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmmmpa%2Ftreeer" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'... [INFO] [stderr] done. [INFO] removed /workspace/builds/worker-7-tc2/source/rust-toolchain [INFO] started tweaking git repo https://github.com/mmmpa/treeer [INFO] finished tweaking git repo https://github.com/mmmpa/treeer [INFO] tweaked toml for git repo https://github.com/mmmpa/treeer written to /workspace/builds/worker-7-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/mmmpa/treeer on toolchain 3c75d5844aa65b4aa19243ac44ceda49fe4e61ca [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3c75d5844aa65b4aa19243ac44ceda49fe4e61ca" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/mmmpa/treeer already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3c75d5844aa65b4aa19243ac44ceda49fe4e61ca" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+3c75d5844aa65b4aa19243ac44ceda49fe4e61ca" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] a4406906f62f32f46370dc8c007ba66cfe43a9f22e5e056fce0f3e5cc26b23e7 [INFO] running `Command { std: "docker" "start" "-a" "a4406906f62f32f46370dc8c007ba66cfe43a9f22e5e056fce0f3e5cc26b23e7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a4406906f62f32f46370dc8c007ba66cfe43a9f22e5e056fce0f3e5cc26b23e7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a4406906f62f32f46370dc8c007ba66cfe43a9f22e5e056fce0f3e5cc26b23e7", kill_on_drop: false }` [INFO] [stdout] a4406906f62f32f46370dc8c007ba66cfe43a9f22e5e056fce0f3e5cc26b23e7 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+3c75d5844aa65b4aa19243ac44ceda49fe4e61ca" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] c53636d111b0d6586267755c4ef0ebd754145a291e5c4b89e968f796151e644e [INFO] running `Command { std: "docker" "start" "-a" "c53636d111b0d6586267755c4ef0ebd754145a291e5c4b89e968f796151e644e", kill_on_drop: false }` [INFO] [stderr] Checking json v0.12.1 [INFO] [stderr] Checking modifier v0.1.0 [INFO] [stderr] Checking treeer v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: field `errors` is never read [INFO] [stdout] --> src/treeer/errors.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 5 | pub struct TreeerErr { [INFO] [stdout] | --------- field in this struct [INFO] [stdout] 6 | errors: Errors [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `TreeerErr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/treeer/errors.rs:16:13 [INFO] [stdout] | [INFO] [stdout] 16 | IoError(std::io::Error), [INFO] [stdout] | ------- ^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `Errors` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 16 - IoError(std::io::Error), [INFO] [stdout] 16 + IoError(()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/treeer/errors.rs:17:19 [INFO] [stdout] | [INFO] [stdout] 17 | FromUtf8Error(std::string::FromUtf8Error), [INFO] [stdout] | ------------- ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `Errors` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 17 - FromUtf8Error(std::string::FromUtf8Error), [INFO] [stdout] 17 + FromUtf8Error(()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `set_mut` is never used [INFO] [stdout] --> src/treeer/tag.rs:16:8 [INFO] [stdout] | [INFO] [stdout] 10 | pub trait Tag: Debug + 'static + StateAccessor + Sized { [INFO] [stdout] | --- method in this trait [INFO] [stdout] ... [INFO] [stdout] 16 | fn set_mut>(&mut self, m: M) { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/treeer/attr_helpers.rs:3:22 [INFO] [stdout] | [INFO] [stdout] 3 | pub fn class<'a>(v: &'a [&'a str]) -> Class { Class(v) } [INFO] [stdout] | ^^ ^^ ----- the lifetime gets resolved as `'a` [INFO] [stdout] | | | [INFO] [stdout] | | these lifetimes flow to the output [INFO] [stdout] | these lifetimes flow to the output [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: one option is to consistently use `'a` [INFO] [stdout] | [INFO] [stdout] 3 | pub fn class<'a>(v: &'a [&'a str]) -> Class<'a> { Class(v) } [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `errors` is never read [INFO] [stdout] --> src/treeer/errors.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 5 | pub struct TreeerErr { [INFO] [stdout] | --------- field in this struct [INFO] [stdout] 6 | errors: Errors [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `TreeerErr` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/treeer/errors.rs:16:13 [INFO] [stdout] | [INFO] [stdout] 16 | IoError(std::io::Error), [INFO] [stdout] | ------- ^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `Errors` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 16 - IoError(std::io::Error), [INFO] [stdout] 16 + IoError(()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/treeer/errors.rs:17:19 [INFO] [stdout] | [INFO] [stdout] 17 | FromUtf8Error(std::string::FromUtf8Error), [INFO] [stdout] | ------------- ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `Errors` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 17 - FromUtf8Error(std::string::FromUtf8Error), [INFO] [stdout] 17 + FromUtf8Error(()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `set_mut` is never used [INFO] [stdout] --> src/treeer/tag.rs:16:8 [INFO] [stdout] | [INFO] [stdout] 10 | pub trait Tag: Debug + 'static + StateAccessor + Sized { [INFO] [stdout] | --- method in this trait [INFO] [stdout] ... [INFO] [stdout] 16 | fn set_mut>(&mut self, m: M) { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/treeer/attr_helpers.rs:3:22 [INFO] [stdout] | [INFO] [stdout] 3 | pub fn class<'a>(v: &'a [&'a str]) -> Class { Class(v) } [INFO] [stdout] | ^^ ^^ ----- the lifetime gets resolved as `'a` [INFO] [stdout] | | | [INFO] [stdout] | | these lifetimes flow to the output [INFO] [stdout] | these lifetimes flow to the output [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: one option is to consistently use `'a` [INFO] [stdout] | [INFO] [stdout] 3 | pub fn class<'a>(v: &'a [&'a str]) -> Class<'a> { Class(v) } [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.39s [INFO] running `Command { std: "docker" "inspect" "c53636d111b0d6586267755c4ef0ebd754145a291e5c4b89e968f796151e644e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c53636d111b0d6586267755c4ef0ebd754145a291e5c4b89e968f796151e644e", kill_on_drop: false }` [INFO] [stdout] c53636d111b0d6586267755c4ef0ebd754145a291e5c4b89e968f796151e644e