[INFO] fetching crate auto-diff 0.3.8...
[INFO] testing auto-diff-0.3.8 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] extracting crate auto-diff 0.3.8 into /workspace/builds/worker-29/source
[INFO] validating manifest of crates.io crate auto-diff 0.3.8 on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate auto-diff 0.3.8
[INFO] finished tweaking crates.io crate auto-diff 0.3.8
[INFO] tweaked toml for crates.io crate auto-diff 0.3.8 written to /workspace/builds/worker-29/source/Cargo.toml
[INFO] crate crates.io crate auto-diff 0.3.8 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "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-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0ab622bfa9bf26cb453b40dc4bc6fbaf7d6b2783411d169c72a44e8ab1cff1d3
[INFO] running `Command { std: "docker" "start" "-a" "0ab622bfa9bf26cb453b40dc4bc6fbaf7d6b2783411d169c72a44e8ab1cff1d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0ab622bfa9bf26cb453b40dc4bc6fbaf7d6b2783411d169c72a44e8ab1cff1d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ab622bfa9bf26cb453b40dc4bc6fbaf7d6b2783411d169c72a44e8ab1cff1d3", kill_on_drop: false }`
[INFO] [stdout] 0ab622bfa9bf26cb453b40dc4bc6fbaf7d6b2783411d169c72a44e8ab1cff1d3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 50505dd8951c201e56acd641c15b5013a47cc179d5d9f9a2ac974e6a07f4e4ed
[INFO] running `Command { std: "docker" "start" "-a" "50505dd8951c201e56acd641c15b5013a47cc179d5d9f9a2ac974e6a07f4e4ed", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]    Compiling serde v1.0.115
[INFO] [stderr]    Compiling matrixmultiply v0.1.15
[INFO] [stderr]    Compiling either v1.6.0
[INFO] [stderr]    Compiling ndarray v0.12.1
[INFO] [stderr]    Compiling rawpointer v0.1.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.8
[INFO] [stderr]    Compiling blas-src v0.2.1
[INFO] [stderr]    Compiling blas-src v0.3.0
[INFO] [stderr]    Compiling lapack-src v0.3.0
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling itertools v0.7.11
[INFO] [stderr]    Compiling rand v0.5.6
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling cblas-sys v0.1.4
[INFO] [stderr]    Compiling lapacke-sys v0.1.4
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling rand_distr v0.2.2
[INFO] [stderr]    Compiling lapacke v0.2.0
[INFO] [stderr]    Compiling cauchy v0.2.2
[INFO] [stderr]    Compiling ndarray-linalg v0.11.1
[INFO] [stderr]    Compiling tensor-rs v0.3.8
[INFO] [stderr]    Compiling auto-diff v0.3.8 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `cmd`
[INFO] [stdout]    --> src/var.rs:134:5
[INFO] [stdout]     |
[INFO] [stdout] 134 |     cmd: VarCmd,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.15s
[INFO] running `Command { std: "docker" "inspect" "50505dd8951c201e56acd641c15b5013a47cc179d5d9f9a2ac974e6a07f4e4ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "50505dd8951c201e56acd641c15b5013a47cc179d5d9f9a2ac974e6a07f4e4ed", kill_on_drop: false }`
[INFO] [stdout] 50505dd8951c201e56acd641c15b5013a47cc179d5d9f9a2ac974e6a07f4e4ed
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 68f8a06f75d8865127d44093fe0168ede0a8879dd6a798256a2e1938a8523d69
[INFO] running `Command { std: "docker" "start" "-a" "68f8a06f75d8865127d44093fe0168ede0a8879dd6a798256a2e1938a8523d69", kill_on_drop: false }`
[INFO] [stderr]    Compiling rayon-core v1.7.1
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling adler32 v1.2.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.38
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]    Compiling protobuf v2.17.0
[INFO] [stderr]    Compiling serde_derive v1.0.115
[INFO] [stderr]    Compiling scoped_threadpool v0.1.9
[INFO] [stderr]    Compiling bytemuck v1.3.1
[INFO] [stderr]    Compiling half v1.6.0
[INFO] [stderr]    Compiling regex-syntax v0.6.18
[INFO] [stderr]    Compiling openblas-src v0.9.0
[INFO] [stderr]    Compiling oorandom v11.1.2
[INFO] [stderr]    Compiling memoffset v0.5.5
[INFO] [stderr]    Compiling rayon v1.3.1
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling num-iter v0.1.41
[INFO] [stderr]    Compiling num-rational v0.3.0
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling walkdir v2.3.1
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling gethostname v0.2.1
[INFO] [stderr]    Compiling plotters v0.2.15
[INFO] [stdout] warning: field is never read: `cmd`
[INFO] [stdout]    --> src/var.rs:134:5
[INFO] [stdout]     |
[INFO] [stdout] 134 |     cmd: VarCmd,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling miniz_oxide v0.3.7
[INFO] [stderr]    Compiling deflate v0.8.6
[INFO] [stderr]    Compiling serde_cbor v0.11.1
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling bstr v0.2.13
[INFO] [stderr]    Compiling png v0.16.7
[INFO] [stderr]    Compiling tiff v0.5.0
[INFO] [stderr]    Compiling crossbeam-queue v0.2.3
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling criterion-plot v0.4.3
[INFO] [stderr]    Compiling crossbeam-deque v0.7.3
[INFO] [stderr]    Compiling csv v1.1.3
[INFO] [stderr]    Compiling tinytemplate v1.1.0
[INFO] [stderr]    Compiling regex v1.3.9
[INFO] [stderr]    Compiling jpeg-decoder v0.1.20
[INFO] [stderr]    Compiling image v0.23.8
[INFO] [stderr] error: could not compile `protobuf`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name protobuf --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/protobuf-2.17.0/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=f5514c2fed738869 -C extra-filename=-f5514c2fed738869 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --cap-lints allow --cap-lints=forbid --cfg rustc_nightly` (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" "68f8a06f75d8865127d44093fe0168ede0a8879dd6a798256a2e1938a8523d69", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68f8a06f75d8865127d44093fe0168ede0a8879dd6a798256a2e1938a8523d69", kill_on_drop: false }`
[INFO] [stdout] 68f8a06f75d8865127d44093fe0168ede0a8879dd6a798256a2e1938a8523d69