[INFO] fetching crate btfm 0.12.1...
[INFO] checking btfm-0.12.1 against try#3d9fdbff4f377de96b3a51174e7a64086bee9a5c for pr-81477
[INFO] extracting crate btfm 0.12.1 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate btfm 0.12.1 on toolchain 3d9fdbff4f377de96b3a51174e7a64086bee9a5c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate btfm 0.12.1
[INFO] finished tweaking crates.io crate btfm 0.12.1
[INFO] tweaked toml for crates.io crate btfm 0.12.1 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate btfm 0.12.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cpuid-bool v0.2.0
[INFO] [stderr]   Downloaded xsalsa20poly1305 v0.6.0
[INFO] [stderr]   Downloaded typemap_rev v0.1.5
[INFO] [stderr]   Downloaded poly1305 v0.6.2
[INFO] [stderr]   Downloaded spin_sleep v1.0.0
[INFO] [stderr]   Downloaded dasp_frame v0.11.0
[INFO] [stderr]   Downloaded dasp_sample v0.11.0
[INFO] [stderr]   Downloaded lewton v0.9.4
[INFO] [stderr]   Downloaded audrey v0.3.0
[INFO] [stderr]   Downloaded tokio v1.6.1
[INFO] [stderr]   Downloaded flume v0.10.5
[INFO] [stderr]   Downloaded serenity-voice-model v0.1.0
[INFO] [stderr]   Downloaded audiopus v0.2.0
[INFO] [stderr]   Downloaded streamcatcher v0.1.0
[INFO] [stderr]   Downloaded ogg v0.7.1
[INFO] [stderr]   Downloaded hyper v0.14.8
[INFO] [stderr]   Downloaded deepspeech-sys v0.9.0
[INFO] [stderr]   Downloaded songbird v0.1.6
[INFO] [stderr]   Downloaded loom v0.3.6
[INFO] [stderr]   Downloaded stderrlog v0.5.1
[INFO] [stderr]   Downloaded salsa20 v0.7.2
[INFO] [stderr]   Downloaded universal-hash v0.4.0
[INFO] [stderr]   Downloaded hyper-rustls v0.22.1
[INFO] [stderr]   Downloaded claxon v0.4.3
[INFO] [stderr]   Downloaded bitreader v0.3.4
[INFO] [stderr]   Downloaded pnet_macros v0.26.0
[INFO] [stderr]   Downloaded command_attr v0.3.6
[INFO] [stderr]   Downloaded deepspeech v0.9.0
[INFO] [stderr]   Downloaded pnet_macros_support v0.26.0
[INFO] [stderr]   Downloaded mp4parse v0.10.1
[INFO] [stderr]   Downloaded discortp v0.2.2
[INFO] [stderr]   Downloaded async-tungstenite v0.11.0
[INFO] [stderr]   Downloaded caf v0.1.0
[INFO] [stderr]   Downloaded webpki-roots v0.20.0
[INFO] [stderr]   Downloaded unicode-normalization v0.1.18
[INFO] [stderr]   Downloaded serenity v0.10.7
[INFO] [stderr]   Downloaded alac v0.5.0
[INFO] [stderr]   Downloaded audiopus_sys v0.1.8
[INFO] [stderr]   Downloaded pnet_base v0.26.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:ea7d7bff36b2ba8ce4de8bba1d2dea90376bc481f1a945a913994a8c492e40c1" "/opt/rustwide/cargo-home/bin/cargo" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 95988ac8054d2c99d7d42bde1ac49b3557a6bed27f1301760346264b7fbaf391
[INFO] running `Command { std: "docker" "start" "-a" "95988ac8054d2c99d7d42bde1ac49b3557a6bed27f1301760346264b7fbaf391", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "95988ac8054d2c99d7d42bde1ac49b3557a6bed27f1301760346264b7fbaf391", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "95988ac8054d2c99d7d42bde1ac49b3557a6bed27f1301760346264b7fbaf391", kill_on_drop: false }`
[INFO] [stdout] 95988ac8054d2c99d7d42bde1ac49b3557a6bed27f1301760346264b7fbaf391
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "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:ea7d7bff36b2ba8ce4de8bba1d2dea90376bc481f1a945a913994a8c492e40c1" "/opt/rustwide/cargo-home/bin/cargo" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4950b7192f18e0cafc6b00bbc36e2fb0c65f80a1d3d6ed8f1840494b82c3e627
[INFO] running `Command { std: "docker" "start" "-a" "4950b7192f18e0cafc6b00bbc36e2fb0c65f80a1d3d6ed8f1840494b82c3e627", 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 libc v0.2.95
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling typenum v1.13.0
[INFO] [stderr]    Compiling cc v1.0.68
[INFO] [stderr]    Compiling futures-core v0.3.15
[INFO] [stderr]    Compiling futures-task v0.3.15
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]    Compiling futures-channel v0.3.15
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]     Checking futures-sink v0.3.15
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]    Compiling once_cell v1.7.2
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking slab v0.4.3
[INFO] [stderr]     Checking futures-io v0.3.15
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling radium v0.5.3
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]    Compiling httparse v1.4.1
[INFO] [stderr]    Compiling lexical-core v0.7.6
[INFO] [stderr]    Compiling pin-project-lite v0.2.6
[INFO] [stderr]     Checking cpufeatures v0.1.4
[INFO] [stderr]    Compiling spin v0.5.2
[INFO] [stderr]    Compiling untrusted v0.7.1
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling build_const v0.2.2
[INFO] [stderr]    Compiling term v0.4.6
[INFO] [stderr]    Compiling whoami v1.1.2
[INFO] [stderr]    Compiling bytes v1.0.1
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]    Compiling bitflags v0.5.0
[INFO] [stderr]    Compiling wyz v0.2.0
[INFO] [stderr]    Compiling base64 v0.13.0
[INFO] [stderr]    Compiling opaque-debug v0.3.0
[INFO] [stderr]    Compiling funty v1.1.0
[INFO] [stderr]     Checking utf-8 v0.7.6
[INFO] [stderr]     Checking try-lock v0.2.3
[INFO] [stderr]    Compiling tap v1.0.1
[INFO] [stderr]    Compiling arrayvec v0.5.2
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]    Compiling smallvec v1.6.1
[INFO] [stderr]    Compiling subtle v2.4.0
[INFO] [stderr]    Compiling encoding_rs v0.8.28
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]     Checking bytes v0.5.6
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]     Checking base64 v0.12.3
[INFO] [stderr]     Checking mime v0.3.16
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]    Compiling unicode_categories v0.1.1
[INFO] [stderr]    Compiling hex v0.4.3
[INFO] [stderr]     Checking zeroize v1.3.0
[INFO] [stderr]    Compiling deepspeech-sys v0.9.0
[INFO] [stderr]     Checking pnet_base v0.26.0
[INFO] [stderr]    Compiling serenity v0.10.7
[INFO] [stderr]     Checking typemap_rev v0.1.5
[INFO] [stderr]    Compiling songbird v0.1.6
[INFO] [stderr]     Checking dasp_sample v0.11.0
[INFO] [stderr]     Checking uwl v0.6.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]    Compiling dotenv v0.15.0
[INFO] [stderr]     Checking spin_sleep v1.0.0
[INFO] [stderr]    Compiling tokio v1.6.1
[INFO] [stderr]    Compiling futures-macro v0.3.15
[INFO] [stderr]    Compiling futures-util v0.3.15
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]     Checking tracing-core v0.1.18
[INFO] [stderr]     Checking instant v0.1.9
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]     Checking input_buffer v0.4.0
[INFO] [stderr]     Checking bitreader v0.3.4
[INFO] [stderr]     Checking unicode-bidi v0.3.5
[INFO] [stderr]     Checking http v0.2.4
[INFO] [stderr]     Checking tinyvec v1.2.0
[INFO] [stderr]    Compiling crossbeam-queue v0.3.2
[INFO] [stderr]     Checking lock_api v0.4.4
[INFO] [stderr]     Checking ogg v0.7.1
[INFO] [stderr]     Checking caf v0.1.0
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]    Compiling crc v1.8.1
[INFO] [stderr]     Checking pnet_macros_support v0.26.0
[INFO] [stderr]     Checking input_buffer v0.3.1
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling ahash v0.7.4
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling nom v6.1.2
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling unicode-normalization v0.1.18
[INFO] [stderr]     Checking dasp_frame v0.11.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking spinning_top v0.2.2
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking atoi v0.4.0
[INFO] [stderr]     Checking mp4parse v0.10.1
[INFO] [stderr]    Compiling crossbeam-channel v0.5.1
[INFO] [stderr]    Compiling bitvec v0.19.5
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]     Checking enum_primitive v0.1.1
[INFO] [stderr]    Compiling audiopus_sys v0.1.8
[INFO] [stderr]    Compiling syntex_pos v0.42.0
[INFO] [stderr] error: could not compile `rustc-serialize`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name rustc_serialize /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc-serialize-0.3.24/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=efb9cfa92b7c8c8d -C extra-filename=-efb9cfa92b7c8c8d --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --cap-lints allow --cap-lints=forbid` (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" "4950b7192f18e0cafc6b00bbc36e2fb0c65f80a1d3d6ed8f1840494b82c3e627", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4950b7192f18e0cafc6b00bbc36e2fb0c65f80a1d3d6ed8f1840494b82c3e627", kill_on_drop: false }`
[INFO] [stdout] 4950b7192f18e0cafc6b00bbc36e2fb0c65f80a1d3d6ed8f1840494b82c3e627