[INFO] fetching crate nu-macros 0.12.0...
[INFO] testing nu-macros-0.12.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate nu-macros 0.12.0 into /workspace/builds/worker-75/source
[INFO] validating manifest of crates.io crate nu-macros 0.12.0 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 nu-macros 0.12.0
[INFO] finished tweaking crates.io crate nu-macros 0.12.0
[INFO] tweaked toml for crates.io crate nu-macros 0.12.0 written to /workspace/builds/worker-75/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] 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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded typetag-impl v0.1.7
[INFO] [stderr]   Downloaded erased-serde v0.3.16
[INFO] [stderr]   Downloaded typetag v0.1.7
[INFO] [stderr]   Downloaded nu-source v0.12.0
[INFO] [stderr]   Downloaded byte-unit v3.1.4
[INFO] [stderr]   Downloaded nu-errors v0.12.0
[INFO] [stderr]   Downloaded nu-build v0.12.0
[INFO] [stderr]   Downloaded nu-protocol v0.12.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/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] 03f9a2891b59954023cc9742ff120a4bff9a45d8865baef2d51c8f1e70cc1ee5
[INFO] running `Command { std: "docker" "start" "-a" "03f9a2891b59954023cc9742ff120a4bff9a45d8865baef2d51c8f1e70cc1ee5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "03f9a2891b59954023cc9742ff120a4bff9a45d8865baef2d51c8f1e70cc1ee5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "03f9a2891b59954023cc9742ff120a4bff9a45d8865baef2d51c8f1e70cc1ee5", kill_on_drop: false }`
[INFO] [stdout] 03f9a2891b59954023cc9742ff120a4bff9a45d8865baef2d51c8f1e70cc1ee5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/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] 3ef1b71143298f118d8f4b822f1682bbaffa83c8bb20747c23c874c3637a08bb
[INFO] running `Command { std: "docker" "start" "-a" "3ef1b71143298f118d8f4b822f1682bbaffa83c8bb20747c23c874c3637a08bb", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde_json v1.0.67
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling itoa v0.4.8
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling lexical-core v0.7.6
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling arrayvec v0.5.2
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling libc v0.2.101
[INFO] [stderr]    Compiling bytecount v0.3.2
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling erased-serde v0.3.16
[INFO] [stderr]    Compiling inventory v0.1.10
[INFO] [stderr]    Compiling linked-hash-map v0.5.4
[INFO] [stderr]    Compiling typed-arena v1.7.0
[INFO] [stderr]    Compiling dtoa v0.4.8
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]    Compiling natural v0.3.0
[INFO] [stderr]    Compiling query_interface v0.3.5
[INFO] [stderr]    Compiling byte-unit v3.1.4
[INFO] [stderr]    Compiling itertools v0.7.11
[INFO] [stderr]    Compiling pretty v0.5.2
[INFO] [stderr]    Compiling yaml-rust v0.4.5
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling render-tree v0.1.1
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling nom_locate v1.0.0
[INFO] [stderr]    Compiling nom-tracable-macros v0.4.1
[INFO] [stderr]    Compiling derive-new v0.5.9
[INFO] [stderr]    Compiling ctor v0.1.21
[INFO] [stderr]    Compiling ghost v0.1.2
[INFO] [stderr]    Compiling getset v0.0.9
[INFO] [stderr]    Compiling inventory-impl v0.1.10
[INFO] [stderr]    Compiling typetag-impl v0.1.7
[INFO] [stderr]    Compiling nom-tracable v0.4.1
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling language-reporting v0.4.0
[INFO] [stderr]    Compiling serde_bytes v0.11.5
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling serde_yaml v0.8.21
[INFO] [stderr]    Compiling typetag v0.1.7
[INFO] [stderr]    Compiling bigdecimal v0.1.2
[INFO] [stderr]    Compiling nu-build v0.12.0
[INFO] [stderr]    Compiling nu-source v0.12.0
[INFO] [stderr]    Compiling nu-errors v0.12.0
[INFO] [stderr]    Compiling nu-protocol v0.12.0
[INFO] [stderr] error: failed to run custom build command for `nu-source v0.12.0`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/nu-source-a42945595f735a7b/build-script-build` (exit status: 1)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   Error: Error("EOF while parsing a value", line: 1, column: 0)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "3ef1b71143298f118d8f4b822f1682bbaffa83c8bb20747c23c874c3637a08bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ef1b71143298f118d8f4b822f1682bbaffa83c8bb20747c23c874c3637a08bb", kill_on_drop: false }`
[INFO] [stdout] 3ef1b71143298f118d8f4b822f1682bbaffa83c8bb20747c23c874c3637a08bb