[INFO] fetching crate ipmap 0.1.4...
[INFO] testing ipmap-0.1.4 against 1.59.0 for beta-1.60-1
[INFO] extracting crate ipmap 0.1.4 into /workspace/builds/worker-112/source
[INFO] validating manifest of crates.io crate ipmap 0.1.4 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ipmap 0.1.4
[INFO] finished tweaking crates.io crate ipmap 0.1.4
[INFO] tweaked toml for crates.io crate ipmap 0.1.4 written to /workspace/builds/worker-112/source/Cargo.toml
[INFO] crate crates.io crate ipmap 0.1.4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "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-112/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 704688b51d968d39e26fcc08dfc90c6efcb90bdb539f43729431fe2b0cb05337
[INFO] running `Command { std: "docker" "start" "-a" "704688b51d968d39e26fcc08dfc90c6efcb90bdb539f43729431fe2b0cb05337", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "704688b51d968d39e26fcc08dfc90c6efcb90bdb539f43729431fe2b0cb05337", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "704688b51d968d39e26fcc08dfc90c6efcb90bdb539f43729431fe2b0cb05337", kill_on_drop: false }`
[INFO] [stdout] 704688b51d968d39e26fcc08dfc90c6efcb90bdb539f43729431fe2b0cb05337
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 94e14e27d5d2b0f31b05de97e10441f80c03f47d7cb127503406d0090862c5a2
[INFO] running `Command { std: "docker" "start" "-a" "94e14e27d5d2b0f31b05de97e10441f80c03f47d7cb127503406d0090862c5a2", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling syn v1.0.54
[INFO] [stderr]    Compiling matches v0.1.8
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling yansi v0.5.0
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]    Compiling opaque-debug v0.2.3
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]    Compiling subtle v2.3.0
[INFO] [stderr]    Compiling subtle v1.0.0
[INFO] [stderr]    Compiling cc v1.0.66
[INFO] [stderr]    Compiling byte-tools v0.3.1
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling httparse v1.3.4
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling spin v0.5.2
[INFO] [stderr]    Compiling const_fn v0.4.4
[INFO] [stderr]    Compiling untrusted v0.7.1
[INFO] [stderr]    Compiling fake-simd v0.1.2
[INFO] [stderr]    Compiling safemem v0.3.3
[INFO] [stderr]    Compiling zeroize v1.2.0
[INFO] [stderr]    Compiling once_cell v1.5.2
[INFO] [stderr]    Compiling base64 v0.12.3
[INFO] [stderr]    Compiling hashbrown v0.9.1
[INFO] [stderr]    Compiling typeable v0.1.2
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling traitobject v0.1.0
[INFO] [stderr]    Compiling regex-syntax v0.6.21
[INFO] [stderr]    Compiling language-tags v0.2.2
[INFO] [stderr]    Compiling smallvec v1.5.1
[INFO] [stderr]    Compiling state v0.4.2
[INFO] [stderr]    Compiling serde_json v1.0.60
[INFO] [stderr]    Compiling itoa v0.4.6
[INFO] [stderr]    Compiling debug-helper v0.3.10
[INFO] [stderr]    Compiling base64 v0.13.0
[INFO] [stderr]    Compiling chunked_transfer v1.3.0
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling pcap v0.7.0
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling tinyvec v1.1.0
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling qstring v0.7.2
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling unicode-bidi v0.3.4
[INFO] [stderr]    Compiling form_urlencoded v1.0.0
[INFO] [stderr]    Compiling standback v0.2.13
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]    Compiling time v0.2.23
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling cookie v0.14.3
[INFO] [stderr]    Compiling block-padding v0.1.5
[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-1.0.66/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,future-incompat --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 -C metadata=611ddf10abbd28ff -C extra-filename=-611ddf10abbd28ff --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" "94e14e27d5d2b0f31b05de97e10441f80c03f47d7cb127503406d0090862c5a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94e14e27d5d2b0f31b05de97e10441f80c03f47d7cb127503406d0090862c5a2", kill_on_drop: false }`
[INFO] [stdout] 94e14e27d5d2b0f31b05de97e10441f80c03f47d7cb127503406d0090862c5a2