[INFO] fetching crate pa 0.1.5...
[INFO] testing pa-0.1.5 against 1.55.0 for beta-1.56-1
[INFO] extracting crate pa 0.1.5 into /workspace/builds/worker-48/source
[INFO] validating manifest of crates.io crate pa 0.1.5 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 pa 0.1.5
[INFO] finished tweaking crates.io crate pa 0.1.5
[INFO] tweaked toml for crates.io crate pa 0.1.5 written to /workspace/builds/worker-48/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-48/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-48/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] 3d2bd813011a0683093dadaa87b0c87eaa011122d42a453838da753decce8ec3
[INFO] running `Command { std: "docker" "start" "-a" "3d2bd813011a0683093dadaa87b0c87eaa011122d42a453838da753decce8ec3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3d2bd813011a0683093dadaa87b0c87eaa011122d42a453838da753decce8ec3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d2bd813011a0683093dadaa87b0c87eaa011122d42a453838da753decce8ec3", kill_on_drop: false }`
[INFO] [stdout] 3d2bd813011a0683093dadaa87b0c87eaa011122d42a453838da753decce8ec3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-48/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-48/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] 3f76ddab6081b0ed55402b4eb7f168ee96fba921d9113e4eb1003b6d168aa9e5
[INFO] running `Command { std: "docker" "start" "-a" "3f76ddab6081b0ed55402b4eb7f168ee96fba921d9113e4eb1003b6d168aa9e5", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling pa v0.1.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.09s
[INFO] running `Command { std: "docker" "inspect" "3f76ddab6081b0ed55402b4eb7f168ee96fba921d9113e4eb1003b6d168aa9e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f76ddab6081b0ed55402b4eb7f168ee96fba921d9113e4eb1003b6d168aa9e5", kill_on_drop: false }`
[INFO] [stdout] 3f76ddab6081b0ed55402b4eb7f168ee96fba921d9113e4eb1003b6d168aa9e5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-48/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-48/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] 4d3e4a46cd4a113c364b378372bb5b865e28a47d52a270451112007f91b8ba36
[INFO] running `Command { std: "docker" "start" "-a" "4d3e4a46cd4a113c364b378372bb5b865e28a47d52a270451112007f91b8ba36", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling pa v0.1.5 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> tests/basic_fn.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | #![feature(trace_macros)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> /opt/rustwide/workdir/src/basic_fn/mac.rs:203:28
[INFO] [stdout]     |
[INFO] [stdout] 203 |         $(ret.extend($it););*
[INFO] [stdout]     |                            ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> /opt/rustwide/workdir/src/basic_fn/mac.rs:203:28
[INFO] [stdout]     |
[INFO] [stdout] 203 |         $(ret.extend($it););*
[INFO] [stdout]     |                            ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `pa` due to 2 previous errors; 2 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "4d3e4a46cd4a113c364b378372bb5b865e28a47d52a270451112007f91b8ba36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d3e4a46cd4a113c364b378372bb5b865e28a47d52a270451112007f91b8ba36", kill_on_drop: false }`
[INFO] [stdout] 4d3e4a46cd4a113c364b378372bb5b865e28a47d52a270451112007f91b8ba36