[INFO] fetching crate prometheus-exposition-format-rs 0.1.2... [INFO] building prometheus-exposition-format-rs-0.1.2 against master#ad85bc524b1ad696e42061ad8338d382dffbdbe5 for pr-146237-1 [INFO] extracting crate prometheus-exposition-format-rs 0.1.2 into /workspace/builds/worker-6-tc1/source [INFO] started tweaking crates.io crate prometheus-exposition-format-rs 0.1.2 [INFO] finished tweaking crates.io crate prometheus-exposition-format-rs 0.1.2 [INFO] tweaked toml for crates.io crate prometheus-exposition-format-rs 0.1.2 written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate prometheus-exposition-format-rs 0.1.2 on toolchain ad85bc524b1ad696e42061ad8338d382dffbdbe5 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "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" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 10 packages to latest compatible versions [INFO] [stderr] Adding nom v5.1.3 (available: v8.0.0) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded assert_approx_eq v1.1.0 [INFO] [stderr] Downloaded nom v5.1.3 [INFO] [stderr] Downloaded lexical-core v0.7.6 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 646b9fc99c38fb4c939183349e441675fd22cb7de0191ccbf1aa3979c2ef5e41 [INFO] running `Command { std: "docker" "start" "-a" "646b9fc99c38fb4c939183349e441675fd22cb7de0191ccbf1aa3979c2ef5e41", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "646b9fc99c38fb4c939183349e441675fd22cb7de0191ccbf1aa3979c2ef5e41", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "646b9fc99c38fb4c939183349e441675fd22cb7de0191ccbf1aa3979c2ef5e41", kill_on_drop: false }` [INFO] [stdout] 646b9fc99c38fb4c939183349e441675fd22cb7de0191ccbf1aa3979c2ef5e41 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 3f97e60bc79466be787dec85afc6962bffb657e35069e8608b558421c158959b [INFO] running `Command { std: "docker" "start" "-a" "3f97e60bc79466be787dec85afc6962bffb657e35069e8608b558421c158959b", kill_on_drop: false }` [INFO] [stderr] Compiling lexical-core v0.7.6 [INFO] [stderr] Compiling nom v5.1.3 [INFO] [stderr] Compiling static_assertions v1.1.0 [INFO] [stderr] Compiling arrayvec v0.5.2 [INFO] [stderr] Compiling memchr v2.7.6 [INFO] [stderr] Compiling prometheus-exposition-format-rs v0.1.2 (/opt/rustwide/workdir) [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/types.rs:15:16 [INFO] [stdout] | [INFO] [stdout] 15 | pub struct Err(String); [INFO] [stdout] | --- ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this struct [INFO] [stdout] | [INFO] [stdout] = help: consider removing this field [INFO] [stdout] = note: `Err` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/lib.rs:23:22 [INFO] [stdout] | [INFO] [stdout] 23 | fn parse_line(input: &str) -> IResult<&str, LineType> { [INFO] [stdout] | ^^^^ ^^^^ ^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | | [INFO] [stdout] | | the same lifetime is elided here [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 23 | fn parse_line(input: &str) -> IResult<&str, LineType<'_>> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/comment.rs:60:26 [INFO] [stdout] | [INFO] [stdout] 60 | pub fn comment_parser(i: &str) -> IResult<&str, CommentType> { [INFO] [stdout] | ^^^^ ^^^^ ^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | | [INFO] [stdout] | | the same lifetime is elided here [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 60 | pub fn comment_parser(i: &str) -> IResult<&str, CommentType<'_>> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/samples.rs:94:24 [INFO] [stdout] | [INFO] [stdout] 94 | pub fn parse_sample(i: &str) -> IResult<&str, SampleEntry> { [INFO] [stdout] | ^^^^ ^^^^ ^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | | [INFO] [stdout] | | the same lifetime is elided here [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 94 | pub fn parse_sample(i: &str) -> IResult<&str, SampleEntry<'_>> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.72s [INFO] running `Command { std: "docker" "inspect" "3f97e60bc79466be787dec85afc6962bffb657e35069e8608b558421c158959b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3f97e60bc79466be787dec85afc6962bffb657e35069e8608b558421c158959b", kill_on_drop: false }` [INFO] [stdout] 3f97e60bc79466be787dec85afc6962bffb657e35069e8608b558421c158959b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 4f5298b6d7b0554062e6885612ffb8671dd79eb9e3b2769a052ee4afb7c48d38 [INFO] running `Command { std: "docker" "start" "-a" "4f5298b6d7b0554062e6885612ffb8671dd79eb9e3b2769a052ee4afb7c48d38", kill_on_drop: false }` [INFO] [stderr] Compiling assert_approx_eq v1.1.0 [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/types.rs:15:16 [INFO] [stdout] | [INFO] [stdout] 15 | pub struct Err(String); [INFO] [stdout] | --- ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this struct [INFO] [stdout] | [INFO] [stdout] = help: consider removing this field [INFO] [stdout] = note: `Err` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/lib.rs:23:22 [INFO] [stdout] | [INFO] [stdout] 23 | fn parse_line(input: &str) -> IResult<&str, LineType> { [INFO] [stdout] | ^^^^ ^^^^ ^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | | [INFO] [stdout] | | the same lifetime is elided here [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 23 | fn parse_line(input: &str) -> IResult<&str, LineType<'_>> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/comment.rs:60:26 [INFO] [stdout] | [INFO] [stdout] 60 | pub fn comment_parser(i: &str) -> IResult<&str, CommentType> { [INFO] [stdout] | ^^^^ ^^^^ ^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | | [INFO] [stdout] | | the same lifetime is elided here [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 60 | pub fn comment_parser(i: &str) -> IResult<&str, CommentType<'_>> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/samples.rs:94:24 [INFO] [stdout] | [INFO] [stdout] 94 | pub fn parse_sample(i: &str) -> IResult<&str, SampleEntry> { [INFO] [stdout] | ^^^^ ^^^^ ^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | | [INFO] [stdout] | | the same lifetime is elided here [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 94 | pub fn parse_sample(i: &str) -> IResult<&str, SampleEntry<'_>> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling prometheus-exposition-format-rs v0.1.2 (/opt/rustwide/workdir) [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/types.rs:15:16 [INFO] [stdout] | [INFO] [stdout] 15 | pub struct Err(String); [INFO] [stdout] | --- ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this struct [INFO] [stdout] | [INFO] [stdout] = help: consider removing this field [INFO] [stdout] = note: `Err` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/lib.rs:23:22 [INFO] [stdout] | [INFO] [stdout] 23 | fn parse_line(input: &str) -> IResult<&str, LineType> { [INFO] [stdout] | ^^^^ ^^^^ ^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | | [INFO] [stdout] | | the same lifetime is elided here [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 23 | fn parse_line(input: &str) -> IResult<&str, LineType<'_>> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/comment.rs:60:26 [INFO] [stdout] | [INFO] [stdout] 60 | pub fn comment_parser(i: &str) -> IResult<&str, CommentType> { [INFO] [stdout] | ^^^^ ^^^^ ^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | | [INFO] [stdout] | | the same lifetime is elided here [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 60 | pub fn comment_parser(i: &str) -> IResult<&str, CommentType<'_>> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/samples.rs:94:24 [INFO] [stdout] | [INFO] [stdout] 94 | pub fn parse_sample(i: &str) -> IResult<&str, SampleEntry> { [INFO] [stdout] | ^^^^ ^^^^ ^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | | [INFO] [stdout] | | the same lifetime is elided here [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 94 | pub fn parse_sample(i: &str) -> IResult<&str, SampleEntry<'_>> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 1.44s [INFO] running `Command { std: "docker" "inspect" "4f5298b6d7b0554062e6885612ffb8671dd79eb9e3b2769a052ee4afb7c48d38", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4f5298b6d7b0554062e6885612ffb8671dd79eb9e3b2769a052ee4afb7c48d38", kill_on_drop: false }` [INFO] [stdout] 4f5298b6d7b0554062e6885612ffb8671dd79eb9e3b2769a052ee4afb7c48d38