[INFO] fetching crate ident-util 1.0.0...
[INFO] testing ident-util-1.0.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate ident-util 1.0.0 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate ident-util 1.0.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ident-util 1.0.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate ident-util 1.0.0
[INFO] tweaked toml for crates.io crate ident-util 1.0.0 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate crates.io crate ident-util 1.0.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cd067ba62e1f695ff6ac215d8bab36a2eaeec92df0cdcdf2b402b4674ade8ebb
[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" "cd067ba62e1f695ff6ac215d8bab36a2eaeec92df0cdcdf2b402b4674ade8ebb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cd067ba62e1f695ff6ac215d8bab36a2eaeec92df0cdcdf2b402b4674ade8ebb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd067ba62e1f695ff6ac215d8bab36a2eaeec92df0cdcdf2b402b4674ade8ebb", kill_on_drop: false }`
[INFO] [stdout] cd067ba62e1f695ff6ac215d8bab36a2eaeec92df0cdcdf2b402b4674ade8ebb
[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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ef06c06c24d41615b9d2e74fc153963041719758406f028e26e74a4142487331
[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" "ef06c06c24d41615b9d2e74fc153963041719758406f028e26e74a4142487331", kill_on_drop: false }`
[INFO] [stderr]    Compiling ident-util v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.97s
[INFO] running `Command { std: "docker" "inspect" "ef06c06c24d41615b9d2e74fc153963041719758406f028e26e74a4142487331", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef06c06c24d41615b9d2e74fc153963041719758406f028e26e74a4142487331", kill_on_drop: false }`
[INFO] [stdout] ef06c06c24d41615b9d2e74fc153963041719758406f028e26e74a4142487331
[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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 08275afacf7ef5247847d56ae671f60fa5fe10fc01bf879862728dc91e487e2c
[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" "08275afacf7ef5247847d56ae671f60fa5fe10fc01bf879862728dc91e487e2c", kill_on_drop: false }`
[INFO] [stderr]    Compiling ident-util v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `test_fn`
[INFO] [stdout]    --> src/lib.rs:162:17
[INFO] [stdout]     |
[INFO] [stdout] 162 |             use $p;
[INFO] [stdout]     |                 ^^ no `test_fn` in the root
[INFO] [stdout] ...
[INFO] [stdout] 211 |         assert_eq!(path_of!(test_fn), "test_fn");
[INFO] [stdout]     |                    ----------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `path_of` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ident-util` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> examples/basic.rs:26:42
[INFO] [stdout]    |
[INFO] [stdout] 26 |     println!("Binding `{}` holds `{}`.", name_of!(text), text);
[INFO] [stdout]    |                                          ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `name_of` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> examples/basic.rs:28:42
[INFO] [stdout]    |
[INFO] [stdout] 28 |     println!("Function `{}` says `{}`.", name_of!(greet), greet());
[INFO] [stdout]    |                                          ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `name_of` (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] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "08275afacf7ef5247847d56ae671f60fa5fe10fc01bf879862728dc91e487e2c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08275afacf7ef5247847d56ae671f60fa5fe10fc01bf879862728dc91e487e2c", kill_on_drop: false }`
[INFO] [stdout] 08275afacf7ef5247847d56ae671f60fa5fe10fc01bf879862728dc91e487e2c