[INFO] updating cached repository https://github.com/devnought/combine-test [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }` [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] e8ac868fca517438a93499fc7cf4f089e53e61e0 [INFO] checking devnought/combine-test against master#1557fb031b272b4c5bfcc7de5df7eddc7b36a584 for pr-73166 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdevnought%2Fcombine-test" "/workspace/builds/worker-14/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/devnought/combine-test on toolchain 1557fb031b272b4c5bfcc7de5df7eddc7b36a584 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/devnought/combine-test [INFO] finished tweaking git repo https://github.com/devnought/combine-test [INFO] tweaked toml for git repo https://github.com/devnought/combine-test written to /workspace/builds/worker-14/source/Cargo.toml [INFO] crate git repo https://github.com/devnought/combine-test already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "fetch" "--locked" "--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-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] c191ed9a9ab36a3180cb405e0d7f47503255a43f479c38086b0830f87c822c76 [INFO] running `Command { std: "docker" "start" "-a" "c191ed9a9ab36a3180cb405e0d7f47503255a43f479c38086b0830f87c822c76", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "c191ed9a9ab36a3180cb405e0d7f47503255a43f479c38086b0830f87c822c76", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c191ed9a9ab36a3180cb405e0d7f47503255a43f479c38086b0830f87c822c76", kill_on_drop: false }` [INFO] [stdout] c191ed9a9ab36a3180cb405e0d7f47503255a43f479c38086b0830f87c822c76 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e737a32e5d312415e4c429bc6aaca5b52261f61bf42d0cd90c16e0fb85d574de [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "e737a32e5d312415e4c429bc6aaca5b52261f61bf42d0cd90c16e0fb85d574de", kill_on_drop: false }` [INFO] [stderr] Compiling byteorder v1.3.1 [INFO] [stderr] Compiling unicode-segmentation v1.2.1 [INFO] [stderr] Compiling memchr v2.2.0 [INFO] [stderr] Checking strsim v0.8.0 [INFO] [stderr] Checking vec_map v0.8.1 [INFO] [stderr] Checking ansi_term v0.11.0 [INFO] [stderr] Checking ascii v0.9.1 [INFO] [stderr] Checking either v1.5.2 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Compiling proc-macro2 v0.4.29 [INFO] [stderr] Checking libc v0.2.54 [INFO] [stderr] Compiling heck v0.3.1 [INFO] [stderr] Compiling quote v0.6.12 [INFO] [stderr] Compiling syn v0.15.33 [INFO] [stderr] Checking atty v0.2.11 [INFO] [stderr] Checking clap v2.33.0 [INFO] [stderr] Checking combine v3.8.1 [INFO] [stderr] Compiling structopt-derive v0.2.15 [INFO] [stderr] Checking structopt v0.2.15 [INFO] [stderr] Checking combine-test v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused imports: `many1`, `many`, `satisfy`, `take_until_range`, `token` [INFO] [stdout] --> src/main.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 8 | many, many1, [INFO] [stdout] | ^^^^ ^^^^^ [INFO] [stdout] 9 | range::{range, take_until_range, take_while, take_while1}, [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] 10 | satisfy, skip_many, skip_many1, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] 11 | stream::state::State, [INFO] [stdout] 12 | token, ParseError, Parser, RangeStream, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `many1`, `many`, `satisfy`, `take_until_range`, `token` [INFO] [stdout] --> src/main.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 8 | many, many1, [INFO] [stdout] | ^^^^ ^^^^^ [INFO] [stdout] 9 | range::{range, take_until_range, take_while, take_while1}, [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] 10 | satisfy, skip_many, skip_many1, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] 11 | stream::state::State, [INFO] [stdout] 12 | token, ParseError, Parser, RangeStream, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/main.rs:30:5 [INFO] [stdout] | [INFO] [stdout] 30 | dbg!(res); [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/main.rs:30:5 [INFO] [stdout] | [INFO] [stdout] 30 | dbg!(res); [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 30.84s [INFO] running `Command { std: "docker" "inspect" "e737a32e5d312415e4c429bc6aaca5b52261f61bf42d0cd90c16e0fb85d574de", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e737a32e5d312415e4c429bc6aaca5b52261f61bf42d0cd90c16e0fb85d574de", kill_on_drop: false }` [INFO] [stdout] e737a32e5d312415e4c429bc6aaca5b52261f61bf42d0cd90c16e0fb85d574de