[INFO] fetching crate romans 0.1.0...
[INFO] building romans-0.1.0 against try#4987e9d4227139400384ab59296ffee3b0fb1183 for pr-146237-2
[INFO] extracting crate romans 0.1.0 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate romans 0.1.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate romans 0.1.0
[INFO] tweaked toml for crates.io crate romans 0.1.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate romans 0.1.0 on toolchain 4987e9d4227139400384ab59296ffee3b0fb1183
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate romans 0.1.0 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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "fetch" "--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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 62d009e58f944fd033f8e53763708ff21a8308d64949f6c8f5e6ab5710752b96
[INFO] running `Command { std: "docker" "start" "-a" "62d009e58f944fd033f8e53763708ff21a8308d64949f6c8f5e6ab5710752b96", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "62d009e58f944fd033f8e53763708ff21a8308d64949f6c8f5e6ab5710752b96", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "62d009e58f944fd033f8e53763708ff21a8308d64949f6c8f5e6ab5710752b96", kill_on_drop: false }`
[INFO] [stdout] 62d009e58f944fd033f8e53763708ff21a8308d64949f6c8f5e6ab5710752b96
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 977baf4862fd97ae7e2be7ab1c65bd01694bfc9d8bc2c5a756b82d86e017b54a
[INFO] running `Command { std: "docker" "start" "-a" "977baf4862fd97ae7e2be7ab1c65bd01694bfc9d8bc2c5a756b82d86e017b54a", kill_on_drop: false }`
[INFO] [stderr]    Compiling thiserror v1.0.63
[INFO] [stderr]    Compiling core-ext v0.1.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling syn v2.0.72
[INFO] [stderr]    Compiling thiserror-impl v1.0.63
[INFO] [stderr]    Compiling romans v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.88s
[INFO] running `Command { std: "docker" "inspect" "977baf4862fd97ae7e2be7ab1c65bd01694bfc9d8bc2c5a756b82d86e017b54a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "977baf4862fd97ae7e2be7ab1c65bd01694bfc9d8bc2c5a756b82d86e017b54a", kill_on_drop: false }`
[INFO] [stdout] 977baf4862fd97ae7e2be7ab1c65bd01694bfc9d8bc2c5a756b82d86e017b54a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 53ce894a11cba273c55bca6b750ab783816f2841d0dd6dc0277d1ed56b4deb08
[INFO] running `Command { std: "docker" "start" "-a" "53ce894a11cba273c55bca6b750ab783816f2841d0dd6dc0277d1ed56b4deb08", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.155
[INFO] [stderr]    Compiling rustc-serialize v0.3.25
[INFO] [stderr]    Compiling serde v1.0.204
[INFO] [stderr]    Compiling predicates-core v1.0.8
[INFO] [stderr]    Compiling anstyle v1.0.8
[INFO] [stderr]    Compiling anyhow v1.0.86
[INFO] [stderr]    Compiling fragile v2.0.0
[INFO] [stderr]    Compiling downcast v0.11.0
[INFO] [stderr]    Compiling similar v2.6.0
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling syn v2.0.72
[INFO] [stderr]    Compiling predicates v3.1.2
[INFO] [stderr]    Compiling predicates-tree v1.0.11
[INFO] [stderr]    Compiling num-iter v0.1.45
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling console v0.15.8
[INFO] [stderr]    Compiling num-complex v0.1.43
[INFO] [stdout] error: cannot find derive macro `RustcEncodable` in this scope
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/num-complex-0.1.43/src/lib.rs:65:48
[INFO] [stdout]    |
[INFO] [stdout] 65 | #[cfg_attr(feature = "rustc-serialize", derive(RustcEncodable, RustcDecodable))]
[INFO] [stdout]    |                                                ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find derive macro `RustcDecodable` in this scope
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/num-complex-0.1.43/src/lib.rs:65:64
[INFO] [stdout]    |
[INFO] [stdout] 65 | #[cfg_attr(feature = "rustc-serialize", derive(RustcEncodable, RustcDecodable))]
[INFO] [stdout]    |                                                                ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `num-complex` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "53ce894a11cba273c55bca6b750ab783816f2841d0dd6dc0277d1ed56b4deb08", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "53ce894a11cba273c55bca6b750ab783816f2841d0dd6dc0277d1ed56b4deb08", kill_on_drop: false }`
[INFO] [stdout] 53ce894a11cba273c55bca6b750ab783816f2841d0dd6dc0277d1ed56b4deb08