[INFO] fetching crate flag-algebra 0.1.11...
[INFO] testing flag-algebra-0.1.11 against 1.49.0 for beta-1.50-1
[INFO] extracting crate flag-algebra 0.1.11 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate flag-algebra 0.1.11 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate flag-algebra 0.1.11
[INFO] finished tweaking crates.io crate flag-algebra 0.1.11
[INFO] tweaked toml for crates.io crate flag-algebra 0.1.11 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate flag-algebra 0.1.11 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a9b8779d06978319f210581ac5589cf3d0e59e963557c879b1247e0694fb36c0
[INFO] running `Command { std: "docker" "start" "-a" "a9b8779d06978319f210581ac5589cf3d0e59e963557c879b1247e0694fb36c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a9b8779d06978319f210581ac5589cf3d0e59e963557c879b1247e0694fb36c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9b8779d06978319f210581ac5589cf3d0e59e963557c879b1247e0694fb36c0", kill_on_drop: false }`
[INFO] [stdout] a9b8779d06978319f210581ac5589cf3d0e59e963557c879b1247e0694fb36c0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c4cf0390bcc31bdd183088ef51e8393b3ef527762f20ca019d296e7eb1e2e4c3
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "c4cf0390bcc31bdd183088ef51e8393b3ef527762f20ca019d296e7eb1e2e4c3", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.79
[INFO] [stderr]    Compiling libm v0.2.1
[INFO] [stderr]    Compiling syn v1.0.44
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]    Compiling serde v1.0.116
[INFO] [stderr]    Compiling cc v1.0.61
[INFO] [stderr]    Compiling rayon-core v1.8.1
[INFO] [stderr]    Compiling rawpointer v0.2.1
[INFO] [stderr]    Compiling ndarray v0.13.1
[INFO] [stderr]    Compiling blas-src v0.2.1
[INFO] [stderr]    Compiling object v0.21.1
[INFO] [stderr]    Compiling rustc-demangle v0.1.17
[INFO] [stderr]    Compiling canonical-form v0.9.4
[INFO] [stderr]    Compiling svg v0.8.0
[INFO] [stderr]    Compiling find_folder v0.3.0
[INFO] [stderr]    Compiling arrayvec v0.5.1
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-bigint v0.3.0
[INFO] [stderr]    Compiling num-iter v0.1.41
[INFO] [stderr]    Compiling rayon v1.4.1
[INFO] [stderr]    Compiling num-rational v0.3.0
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling matrixmultiply v0.2.3
[INFO] [stderr]    Compiling crossbeam-channel v0.4.4
[INFO] [stderr]    Compiling cmake v0.1.44
[INFO] [stderr]    Compiling rand v0.5.6
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling cblas-sys v0.1.4
[INFO] [stderr]    Compiling lapacke-sys v0.1.4
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling netlib-src v0.8.0
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling backtrace v0.3.53
[INFO] [stderr]    Compiling approx v0.3.2
[INFO] [stderr]    Compiling num-complex v0.3.0
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling simplelog v0.8.0
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling num v0.3.0
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling bincode v1.3.1
[INFO] [stderr]    Compiling cauchy v0.2.2
[INFO] [stderr]    Compiling lapacke v0.2.0
[INFO] [stderr]    Compiling alga v0.9.3
[INFO] [stderr]    Compiling sprs v0.9.1
[INFO] [stderr]    Compiling blas-src v0.6.1
[INFO] [stderr]    Compiling lapack-src v0.6.0
[INFO] [stderr]    Compiling ndarray-linalg v0.12.1
[INFO] [stderr]    Compiling flag-algebra v0.1.11 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]   --> src/sdpa.rs:31:10
[INFO] [stdout]    |
[INFO] [stdout] 31 |   pub enum Error {
[INFO] [stdout]    |  __________^
[INFO] [stdout] 32 | |     #[fail(display = "Error while parsing matrix coefficient: {}", _0)]
[INFO] [stdout] 33 | |     ParseError(String),
[INFO] [stdout]    | |______________^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:81:5
[INFO] [stdout]    |
[INFO] [stdout] 81 |     unused_qualifications,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]   --> src/sdpa.rs:31:10
[INFO] [stdout]    |
[INFO] [stdout] 31 |   pub enum Error {
[INFO] [stdout]    |  __________^
[INFO] [stdout] 32 | |     #[fail(display = "Error while parsing matrix coefficient: {}", _0)]
[INFO] [stdout] 33 | |     ParseError(String),
[INFO] [stdout] 34 | |     #[fail(display = "{}", _0)]
[INFO] [stdout] 35 | |     Io(#[cause] io::Error),
[INFO] [stdout]    | |______^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]   --> src/sdpa.rs:31:10
[INFO] [stdout]    |
[INFO] [stdout] 31 |   pub enum Error {
[INFO] [stdout]    |  __________^
[INFO] [stdout] 32 | |     #[fail(display = "Error while parsing matrix coefficient: {}", _0)]
[INFO] [stdout] 33 | |     ParseError(String),
[INFO] [stdout] 34 | |     #[fail(display = "{}", _0)]
[INFO] [stdout] 35 | |     Io(#[cause] io::Error),
[INFO] [stdout] 36 | |     #[fail(display = "Solver returned with code {}", _0)]
[INFO] [stdout] 37 | |     SdpNotSolved(i32),
[INFO] [stdout]    | |________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]   --> src/sdpa.rs:31:10
[INFO] [stdout]    |
[INFO] [stdout] 31 |   pub enum Error {
[INFO] [stdout]    |  __________^
[INFO] [stdout] 32 | |     #[fail(display = "Error while parsing matrix coefficient: {}", _0)]
[INFO] [stdout] 33 | |     ParseError(String),
[INFO] [stdout]    | |______________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5m 25s
[INFO] running `Command { std: "docker" "inspect" "c4cf0390bcc31bdd183088ef51e8393b3ef527762f20ca019d296e7eb1e2e4c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c4cf0390bcc31bdd183088ef51e8393b3ef527762f20ca019d296e7eb1e2e4c3", kill_on_drop: false }`
[INFO] [stdout] c4cf0390bcc31bdd183088ef51e8393b3ef527762f20ca019d296e7eb1e2e4c3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f9f9e8cc54725ec1273fb12e6374f672adeac283bd64ed05acc3b17b47f3b5da
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f9f9e8cc54725ec1273fb12e6374f672adeac283bd64ed05acc3b17b47f3b5da", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling serde_json v1.0.58
[INFO] [stderr]    Compiling regex-syntax v0.6.19
[INFO] [stderr]    Compiling oorandom v11.1.2
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling regex-automata v0.1.9
[INFO] [stderr]    Compiling plotters v0.2.15
[INFO] [stderr]    Compiling serde_cbor v0.11.1
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]   --> src/sdpa.rs:31:10
[INFO] [stdout]    |
[INFO] [stdout] 31 |   pub enum Error {
[INFO] [stdout]    |  __________^
[INFO] [stdout] 32 | |     #[fail(display = "Error while parsing matrix coefficient: {}", _0)]
[INFO] [stdout] 33 | |     ParseError(String),
[INFO] [stdout]    | |______________^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:81:5
[INFO] [stdout]    |
[INFO] [stdout] 81 |     unused_qualifications,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]   --> src/sdpa.rs:31:10
[INFO] [stdout]    |
[INFO] [stdout] 31 |   pub enum Error {
[INFO] [stdout]    |  __________^
[INFO] [stdout] 32 | |     #[fail(display = "Error while parsing matrix coefficient: {}", _0)]
[INFO] [stdout] 33 | |     ParseError(String),
[INFO] [stdout] 34 | |     #[fail(display = "{}", _0)]
[INFO] [stdout] 35 | |     Io(#[cause] io::Error),
[INFO] [stdout]    | |______^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]   --> src/sdpa.rs:31:10
[INFO] [stdout]    |
[INFO] [stdout] 31 |   pub enum Error {
[INFO] [stdout]    |  __________^
[INFO] [stdout] 32 | |     #[fail(display = "Error while parsing matrix coefficient: {}", _0)]
[INFO] [stdout] 33 | |     ParseError(String),
[INFO] [stdout] 34 | |     #[fail(display = "{}", _0)]
[INFO] [stdout] 35 | |     Io(#[cause] io::Error),
[INFO] [stdout] 36 | |     #[fail(display = "Solver returned with code {}", _0)]
[INFO] [stdout] 37 | |     SdpNotSolved(i32),
[INFO] [stdout]    | |________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]   --> src/sdpa.rs:31:10
[INFO] [stdout]    |
[INFO] [stdout] 31 |   pub enum Error {
[INFO] [stdout]    |  __________^
[INFO] [stdout] 32 | |     #[fail(display = "Error while parsing matrix coefficient: {}", _0)]
[INFO] [stdout] 33 | |     ParseError(String),
[INFO] [stdout]    | |______________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling bstr v0.2.13
[INFO] [stderr]    Compiling regex v1.4.0
[INFO] [stderr]    Compiling csv v1.1.3
[INFO] [stderr]    Compiling tinytemplate v1.1.0
[INFO] [stderr]    Compiling criterion v0.3.3
[INFO] [stderr]    Compiling flag-algebra v0.1.11 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]   --> src/sdpa.rs:31:10
[INFO] [stdout]    |
[INFO] [stdout] 31 |   pub enum Error {
[INFO] [stdout]    |  __________^
[INFO] [stdout] 32 | |     #[fail(display = "Error while parsing matrix coefficient: {}", _0)]
[INFO] [stdout] 33 | |     ParseError(String),
[INFO] [stdout]    | |______________^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:81:5
[INFO] [stdout]    |
[INFO] [stdout] 81 |     unused_qualifications,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]   --> src/sdpa.rs:31:10
[INFO] [stdout]    |
[INFO] [stdout] 31 |   pub enum Error {
[INFO] [stdout]    |  __________^
[INFO] [stdout] 32 | |     #[fail(display = "Error while parsing matrix coefficient: {}", _0)]
[INFO] [stdout] 33 | |     ParseError(String),
[INFO] [stdout] 34 | |     #[fail(display = "{}", _0)]
[INFO] [stdout] 35 | |     Io(#[cause] io::Error),
[INFO] [stdout]    | |______^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]   --> src/sdpa.rs:31:10
[INFO] [stdout]    |
[INFO] [stdout] 31 |   pub enum Error {
[INFO] [stdout]    |  __________^
[INFO] [stdout] 32 | |     #[fail(display = "Error while parsing matrix coefficient: {}", _0)]
[INFO] [stdout] 33 | |     ParseError(String),
[INFO] [stdout] 34 | |     #[fail(display = "{}", _0)]
[INFO] [stdout] 35 | |     Io(#[cause] io::Error),
[INFO] [stdout] 36 | |     #[fail(display = "Solver returned with code {}", _0)]
[INFO] [stdout] 37 | |     SdpNotSolved(i32),
[INFO] [stdout]    | |________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]   --> src/sdpa.rs:31:10
[INFO] [stdout]    |
[INFO] [stdout] 31 |   pub enum Error {
[INFO] [stdout]    |  __________^
[INFO] [stdout] 32 | |     #[fail(display = "Error while parsing matrix coefficient: {}", _0)]
[INFO] [stdout] 33 | |     ParseError(String),
[INFO] [stdout]    | |______________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `flag-algebra`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name strong --edition=2018 examples/strong.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type bin --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 -C metadata=63e3ca22d15b9f4a -C extra-filename=-63e3ca22d15b9f4a --out-dir /opt/rustwide/target/debug/examples -L dependency=/opt/rustwide/target/debug/deps --extern arrayvec=/opt/rustwide/target/debug/deps/libarrayvec-a4960cd48f705d1b.rlib --extern bincode=/opt/rustwide/target/debug/deps/libbincode-4d59b06ce11aa811.rlib --extern canonical_form=/opt/rustwide/target/debug/deps/libcanonical_form-4b0d0a875f97fbb1.rlib --extern criterion=/opt/rustwide/target/debug/deps/libcriterion-c627fa62a5632e8c.rlib --extern failure=/opt/rustwide/target/debug/deps/libfailure-3167d43fe5fd5e44.rlib --extern failure_derive=/opt/rustwide/target/debug/deps/libfailure_derive-389a8960e7dad3b3.so --extern find_folder=/opt/rustwide/target/debug/deps/libfind_folder-b6e70bae9b7cf777.rlib --extern flag_algebra=/opt/rustwide/target/debug/deps/libflag_algebra-ec073db8bf5c7f2f.rlib --extern log=/opt/rustwide/target/debug/deps/liblog-e85f58044ae91ffe.rlib --extern ndarray=/opt/rustwide/target/debug/deps/libndarray-2c62ade43bfa1f64.rlib --extern ndarray_linalg=/opt/rustwide/target/debug/deps/libndarray_linalg-39a925669e539056.rlib --extern num=/opt/rustwide/target/debug/deps/libnum-a532e48deb03c0f4.rlib --extern rand=/opt/rustwide/target/debug/deps/librand-0e7b39ac874c528c.rlib --extern serde=/opt/rustwide/target/debug/deps/libserde-7ce97802efa54fa3.rlib --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-3882651ab703a674.so --extern simplelog=/opt/rustwide/target/debug/deps/libsimplelog-ac0361564dd7d927.rlib --extern sprs=/opt/rustwide/target/debug/deps/libsprs-e569662a9b92e807.rlib --extern svg=/opt/rustwide/target/debug/deps/libsvg-0cd29591826991a0.rlib --extern typenum=/opt/rustwide/target/debug/deps/libtypenum-a5e8dd74bd8dfb37.rlib --cap-lints=warn -L /opt/rustwide/target/debug/build/netlib-src-8e29d2589b12bcf2/out/lib` (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" "f9f9e8cc54725ec1273fb12e6374f672adeac283bd64ed05acc3b17b47f3b5da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9f9e8cc54725ec1273fb12e6374f672adeac283bd64ed05acc3b17b47f3b5da", kill_on_drop: false }`
[INFO] [stdout] f9f9e8cc54725ec1273fb12e6374f672adeac283bd64ed05acc3b17b47f3b5da