[INFO] fetching crate mx-tester 0.3.0-alpha.9...
[INFO] testing mx-tester-0.3.0-alpha.9 against 1.60.0 for beta-1.61-1
[INFO] extracting crate mx-tester 0.3.0-alpha.9 into /workspace/builds/worker-83/source
[INFO] validating manifest of crates.io crate mx-tester 0.3.0-alpha.9 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mx-tester 0.3.0-alpha.9
[INFO] finished tweaking crates.io crate mx-tester 0.3.0-alpha.9
[INFO] tweaked toml for crates.io crate mx-tester 0.3.0-alpha.9 written to /workspace/builds/worker-83/source/Cargo.toml
[INFO] crate crates.io crate mx-tester 0.3.0-alpha.9 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "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 tokio v1.15.0
[INFO] [stderr]   Downloaded gloo-timers v0.2.2
[INFO] [stderr]   Downloaded poly1305 v0.7.2
[INFO] [stderr]   Downloaded olm-rs v2.2.0
[INFO] [stderr]   Downloaded darling_macro v0.13.1
[INFO] [stderr]   Downloaded futures-sink v0.3.19
[INFO] [stderr]   Downloaded futures-core v0.3.19
[INFO] [stderr]   Downloaded fastrand v1.6.0
[INFO] [stderr]   Downloaded futures-io v0.3.19
[INFO] [stderr]   Downloaded futures-task v0.3.19
[INFO] [stderr]   Downloaded hyperlocal v0.8.0
[INFO] [stderr]   Downloaded rustls-pemfile v0.3.0
[INFO] [stderr]   Downloaded atomic v0.5.1
[INFO] [stderr]   Downloaded pbkdf2 v0.9.0
[INFO] [stderr]   Downloaded anyhow v1.0.52
[INFO] [stderr]   Downloaded ruma-serde v0.5.0
[INFO] [stderr]   Downloaded ruma-identifiers-macros v0.20.0
[INFO] [stderr]   Downloaded ruma-api v0.18.5
[INFO] [stderr]   Downloaded comma v1.0.0
[INFO] [stderr]   Downloaded futures v0.3.19
[INFO] [stderr]   Downloaded matrix-qrcode v0.2.0
[INFO] [stderr]   Downloaded matrix-sdk-common v0.4.1
[INFO] [stderr]   Downloaded ruma-client-api v0.12.3
[INFO] [stderr]   Downloaded darling v0.13.1
[INFO] [stderr]   Downloaded serde_with_macros v1.5.1
[INFO] [stderr]   Downloaded darling_core v0.13.1
[INFO] [stderr]   Downloaded serde_with v1.11.0
[INFO] [stderr]   Downloaded signature v1.5.0
[INFO] [stderr]   Downloaded futures-util v0.3.19
[INFO] [stderr]   Downloaded crossbeam-epoch v0.9.6
[INFO] [stderr]   Downloaded chacha20 v0.8.1
[INFO] [stderr]   Downloaded ruma-api-macros v0.18.5
[INFO] [stderr]   Downloaded ruma-federation-api v0.3.1
[INFO] [stderr]   Downloaded bollard-stubs v1.42.0-rc.0
[INFO] [stderr]   Downloaded futures-executor v0.3.19
[INFO] [stderr]   Downloaded security-framework v2.5.0
[INFO] [stderr]   Downloaded chacha20poly1305 v0.9.0
[INFO] [stderr]   Downloaded bollard v0.12.0
[INFO] [stderr]   Downloaded dircpy v0.3.8
[INFO] [stderr]   Downloaded ebacktrace v0.5.1
[INFO] [stderr]   Downloaded ruma-common v0.6.0
[INFO] [stderr]   Downloaded olm-sys v1.3.0
[INFO] [stderr]   Downloaded matrix-sdk-crypto v0.4.1
[INFO] [stderr]   Downloaded ezexec v0.3.0
[INFO] [stderr]   Downloaded sled v0.34.7
[INFO] [stderr]   Downloaded matrix-sdk-base v0.4.1
[INFO] [stderr]   Downloaded serde_json v1.0.75
[INFO] [stderr]   Downloaded serde v1.0.133
[INFO] [stderr]   Downloaded ruma-serde-macros v0.5.0
[INFO] [stderr]   Downloaded ruma-events v0.24.6
[INFO] [stderr]   Downloaded matrix-sdk v0.4.1
[INFO] [stderr]   Downloaded h2 v0.3.10
[INFO] [stderr]   Downloaded futures-channel v0.3.19
[INFO] [stderr]   Downloaded hyper v0.14.16
[INFO] [stderr]   Downloaded serde_yaml v0.8.23
[INFO] [stderr]   Downloaded tracing-attributes v0.1.18
[INFO] [stderr]   Downloaded tokio-util v0.7.0
[INFO] [stderr]   Downloaded hmac v0.12.0
[INFO] [stderr]   Downloaded ruma-events-macros v0.24.6
[INFO] [stderr]   Downloaded ruma v0.4.0
[INFO] [stderr]   Downloaded ruma-signatures v0.9.0
[INFO] [stderr]   Downloaded ruma-identifiers v0.20.0
[INFO] [stderr]   Downloaded ruma-identifiers-validation v0.5.0
[INFO] [stderr]   Downloaded ruma-state-res v0.4.1
[INFO] [stderr]   Downloaded futures-macro v0.3.19
[INFO] [stderr]   Downloaded security-framework-sys v2.5.0
[INFO] [stderr]   Downloaded typed-builder v0.10.0
[INFO] [stderr]   Downloaded serde_derive v1.0.133
[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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 25e814b63b827a1f0c56c3bc8e6bc815d1fcccf22342303351ee3fcb2ddf964f
[INFO] running `Command { std: "docker" "start" "-a" "25e814b63b827a1f0c56c3bc8e6bc815d1fcccf22342303351ee3fcb2ddf964f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "25e814b63b827a1f0c56c3bc8e6bc815d1fcccf22342303351ee3fcb2ddf964f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "25e814b63b827a1f0c56c3bc8e6bc815d1fcccf22342303351ee3fcb2ddf964f", kill_on_drop: false }`
[INFO] [stdout] 25e814b63b827a1f0c56c3bc8e6bc815d1fcccf22342303351ee3fcb2ddf964f
[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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0e71447134fec085df97aa2ae6db83230b644ec7096dde31ab90266c7b45ceb9
[INFO] running `Command { std: "docker" "start" "-a" "0e71447134fec085df97aa2ae6db83230b644ec7096dde31ab90266c7b45ceb9", 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling libc v0.2.112
[INFO] [stderr]    Compiling syn v1.0.85
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling serde_derive v1.0.133
[INFO] [stderr]    Compiling serde v1.0.133
[INFO] [stderr]    Compiling once_cell v1.9.0
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling cc v1.0.72
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling futures-core v0.3.19
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]    Compiling smallvec v1.8.0
[INFO] [stderr]    Compiling matches v0.1.9
[INFO] [stderr]    Compiling serde_json v1.0.75
[INFO] [stderr]    Compiling subtle v2.4.1
[INFO] [stderr]    Compiling futures-sink v0.3.19
[INFO] [stderr]    Compiling futures-channel v0.3.19
[INFO] [stderr]    Compiling crossbeam-utils v0.8.8
[INFO] [stderr]    Compiling cpufeatures v0.2.1
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling futures-task v0.3.19
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.6
[INFO] [stderr]    Compiling ruma-identifiers-validation v0.5.0
[INFO] [stderr]    Compiling futures-util v0.3.19
[INFO] [stderr]    Compiling paste v1.0.6
[INFO] [stderr]    Compiling slab v0.4.5
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling futures-io v0.3.19
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling pkg-config v0.3.24
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.78
[INFO] [stderr]    Compiling crc32fast v1.3.0
[INFO] [stderr]    Compiling adler32 v1.2.0
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling wildmatch v2.1.0
[INFO] [stderr]    Compiling unindent v0.1.7
[INFO] [stderr]    Compiling bumpalo v3.9.1
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling httparse v1.5.1
[INFO] [stderr]    Compiling weezl v0.1.5
[INFO] [stderr]    Compiling const-oid v0.6.2
[INFO] [stderr]    Compiling untrusted v0.7.1
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling signature v1.5.0
[INFO] [stderr]    Compiling spin v0.5.2
[INFO] [stderr]    Compiling color_quant v1.1.0
[INFO] [stderr]    Compiling g2poly v0.4.0
[INFO] [stderr]    Compiling tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling httpdate v1.0.2
[INFO] [stderr]    Compiling scoped_threadpool v0.1.9
[INFO] [stderr]    Compiling bytemuck v1.7.3
[INFO] [stderr]    Compiling wasm-bindgen v0.2.78
[INFO] [stderr]    Compiling async-trait v0.1.52
[INFO] [stderr]    Compiling native-tls v0.2.8
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]    Compiling assign v1.1.1
[INFO] [stderr]    Compiling checked_int_cast v1.0.0
[INFO] [stderr]    Compiling rustls v0.20.4
[INFO] [stderr]    Compiling rustversion v1.0.6
[INFO] [stderr]    Compiling unicode-bidi v0.3.7
[INFO] [stderr]    Compiling encoding_rs v0.8.30
[INFO] [stderr]    Compiling gimli v0.26.1
[INFO] [stderr]    Compiling rustc-demangle v0.1.21
[INFO] [stderr]    Compiling ipnet v2.3.1
[INFO] [stderr]    Compiling linked-hash-map v0.5.4
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling anyhow v1.0.52
[INFO] [stderr]    Compiling mime v0.3.16
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling send_wrapper v0.4.0
[INFO] [stderr]    Compiling event-listener v2.5.1
[INFO] [stderr]    Compiling textwrap v0.14.2
[INFO] [stderr]    Compiling humantime v2.1.0
[INFO] [stderr]    Compiling data-encoding v2.3.2
[INFO] [stderr]    Compiling comma v1.0.0
[INFO] [stderr]    Compiling instant v0.1.12
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling tracing-core v0.1.21
[INFO] [stderr]    Compiling itertools v0.10.3
[INFO] [stderr]    Compiling rustls-pemfile v0.2.1
[INFO] [stderr]    Compiling rustls-pemfile v0.3.0
[INFO] [stderr]    Compiling http-body v0.4.4
[INFO] [stderr]    Compiling object v0.27.1
[INFO] [stderr]    Compiling os_str_bytes v6.0.0
[INFO] [stderr]    Compiling cipher v0.3.0
[INFO] [stderr]    Compiling aead v0.4.3
[INFO] [stderr]    Compiling block-buffer v0.10.2
[INFO] [stderr]    Compiling crypto-common v0.1.1
[INFO] [stderr]    Compiling lock_api v0.4.5
[INFO] [stderr] error: could not compile `cc`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name cc --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/cc-1.0.72/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 -C metadata=a8f8b1f4fee8a484 -C extra-filename=-a8f8b1f4fee8a484 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --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" "0e71447134fec085df97aa2ae6db83230b644ec7096dde31ab90266c7b45ceb9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e71447134fec085df97aa2ae6db83230b644ec7096dde31ab90266c7b45ceb9", kill_on_drop: false }`
[INFO] [stdout] 0e71447134fec085df97aa2ae6db83230b644ec7096dde31ab90266c7b45ceb9