[INFO] fetching crate paperoni 0.6.1-alpha1...
[INFO] testing paperoni-0.6.1-alpha1 against 1.55.0 for beta-1.56-1
[INFO] extracting crate paperoni 0.6.1-alpha1 into /workspace/builds/worker-83/source
[INFO] validating manifest of crates.io crate paperoni 0.6.1-alpha1 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] removed /workspace/builds/worker-83/source/rust-toolchain
[INFO] started tweaking crates.io crate paperoni 0.6.1-alpha1
[INFO] finished tweaking crates.io crate paperoni 0.6.1-alpha1
[INFO] tweaked toml for crates.io crate paperoni 0.6.1-alpha1 written to /workspace/builds/worker-83/source/Cargo.toml
[INFO] crate crates.io crate paperoni 0.6.1-alpha1 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] [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-83/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/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] c5785a940590de9775ca10e4831dc7b885ca701d0be85d05bc4a8a5c727403bb
[INFO] running `Command { std: "docker" "start" "-a" "c5785a940590de9775ca10e4831dc7b885ca701d0be85d05bc4a8a5c727403bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c5785a940590de9775ca10e4831dc7b885ca701d0be85d05bc4a8a5c727403bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5785a940590de9775ca10e4831dc7b885ca701d0be85d05bc4a8a5c727403bb", kill_on_drop: false }`
[INFO] [stdout] c5785a940590de9775ca10e4831dc7b885ca701d0be85d05bc4a8a5c727403bb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/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] de443a565fdd677ab5396da8a00a05182726c75819b67158a52215a733e21f1c
[INFO] running `Command { std: "docker" "start" "-a" "de443a565fdd677ab5396da8a00a05182726c75819b67158a52215a733e21f1c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling syn v1.0.71
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling cc v1.0.67
[INFO] [stderr]    Compiling value-bag v1.0.0-alpha.6
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling typenum v1.13.0
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling futures-core v0.3.15
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]    Compiling siphasher v0.3.5
[INFO] [stderr]    Compiling pin-project-lite v0.2.6
[INFO] [stderr]    Compiling futures-io v0.3.15
[INFO] [stderr]    Compiling matches v0.1.8
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling subtle v2.4.0
[INFO] [stderr]    Compiling slab v0.4.3
[INFO] [stderr]    Compiling cache-padded v1.1.1
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling fastrand v1.4.1
[INFO] [stderr]    Compiling parking v2.0.0
[INFO] [stderr]    Compiling waker-fn v1.1.0
[INFO] [stderr]    Compiling opaque-debug v0.3.0
[INFO] [stderr]    Compiling once_cell v1.7.2
[INFO] [stderr]    Compiling percent-encoding v2.1.0
[INFO] [stderr]    Compiling futures-channel v0.3.15
[INFO] [stderr]    Compiling event-listener v2.5.1
[INFO] [stderr]    Compiling futures-sink v0.3.15
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling cpuid-bool v0.2.0
[INFO] [stderr]    Compiling smallvec v1.6.1
[INFO] [stderr]    Compiling async-task v4.0.3
[INFO] [stderr]    Compiling const_fn v0.4.7
[INFO] [stderr]    Compiling atomic-waker v1.0.0
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling futures-task v0.3.15
[INFO] [stderr]    Compiling new_debug_unreachable v1.0.4
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]    Compiling mac v0.1.1
[INFO] [stderr]    Compiling signal-hook v0.3.9
[INFO] [stderr]    Compiling cpuid-bool v0.1.2
[INFO] [stderr]    Compiling curl v0.4.36
[INFO] [stderr]    Compiling precomputed-hash v0.1.1
[INFO] [stderr]    Compiling openssl-probe v0.1.2
[INFO] [stderr]    Compiling gimli v0.23.0
[INFO] [stderr]    Compiling base64 v0.13.0
[INFO] [stderr]    Compiling data-encoding v2.3.2
[INFO] [stderr]    Compiling dtoa v0.4.8
[INFO] [stderr]    Compiling isahc v0.9.14
[INFO] [stderr]    Compiling http-types v2.11.0
[INFO] [stderr]    Compiling async-trait v0.1.50
[INFO] [stderr]    Compiling utf-8 v0.7.6
[INFO] [stderr]    Compiling bytes v1.0.1
[INFO] [stderr]    Compiling object v0.23.0
[INFO] [stderr]    Compiling nodrop v0.1.14
[INFO] [stderr]    Compiling bytes v0.5.6
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling convert_case v0.4.0
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]    Compiling rustc-demangle v0.1.18
[INFO] [stderr]    Compiling infer v0.2.3
[INFO] [stderr]    Compiling encoding_rs v0.8.28
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]    Compiling thin-slice v0.1.1
[INFO] [stderr]    Compiling mime v0.3.16
[INFO] [stderr]    Compiling utf8-width v0.1.5
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling number_prefix v0.4.0
[INFO] [stderr]    Compiling yansi v0.5.0
[INFO] [stderr]    Compiling strum v0.21.0
[INFO] [stderr]    Compiling md5 v0.7.0
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling tracing-core v0.1.17
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling instant v0.1.9
[INFO] [stderr]    Compiling fxhash v0.2.1
[INFO] [stderr]    Compiling concurrent-queue v1.2.2
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling anyhow v1.0.40
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling async-mutex v1.4.0
[INFO] [stderr]    Compiling async-lock v2.4.0
[INFO] [stderr]    Compiling unicode-bidi v0.3.5
[INFO] [stderr]    Compiling tinyvec v1.2.0
[INFO] [stderr]    Compiling lock_api v0.4.3
[INFO] [stderr]    Compiling phf_shared v0.8.0
[INFO] [stderr]    Compiling form_urlencoded v1.0.1
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling standback v0.2.17
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling time v0.2.26
[INFO] [stderr]    Compiling cookie v0.14.4
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr] error: could not compile `encoding_rs`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name encoding_rs --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/encoding_rs-0.8.28/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 -C metadata=34b9d2a12e311f65 -C extra-filename=-34b9d2a12e311f65 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern cfg_if=/opt/rustwide/target/debug/deps/libcfg_if-dece450273084492.rmeta --cap-lints allow --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "de443a565fdd677ab5396da8a00a05182726c75819b67158a52215a733e21f1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de443a565fdd677ab5396da8a00a05182726c75819b67158a52215a733e21f1c", kill_on_drop: false }`
[INFO] [stdout] de443a565fdd677ab5396da8a00a05182726c75819b67158a52215a733e21f1c