[INFO] fetching crate ketos 0.12.0...
[INFO] testing ketos-0.12.0 against 1.47.0 for beta-1.48-1
[INFO] extracting crate ketos 0.12.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate ketos 0.12.0 on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ketos 0.12.0
[INFO] finished tweaking crates.io crate ketos 0.12.0
[INFO] tweaked toml for crates.io crate ketos 0.12.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate ketos 0.12.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ecbe955e9c1de9b83a421c5bbebd2e3640b404c73f63628825716d12ab60d4c3
[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" "ecbe955e9c1de9b83a421c5bbebd2e3640b404c73f63628825716d12ab60d4c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ecbe955e9c1de9b83a421c5bbebd2e3640b404c73f63628825716d12ab60d4c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ecbe955e9c1de9b83a421c5bbebd2e3640b404c73f63628825716d12ab60d4c3", kill_on_drop: false }`
[INFO] [stdout] ecbe955e9c1de9b83a421c5bbebd2e3640b404c73f63628825716d12ab60d4c3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 70c5475e0be78a76cc46ffa05f87a3ee21b78e070d7b82a6594673890956c7a9
[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" "70c5475e0be78a76cc46ffa05f87a3ee21b78e070d7b82a6594673890956c7a9", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-bigint v0.2.3
[INFO] [stderr]    Compiling num-complex v0.2.3
[INFO] [stderr]    Compiling num-rational v0.2.2
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling dirs v1.0.5
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]    Compiling smallvec v0.6.13
[INFO] [stderr]    Compiling dirs v2.0.2
[INFO] [stderr]    Compiling gumdrop_derive v0.7.0
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling smallstr v0.1.0
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]    Compiling terminfo v0.6.1
[INFO] [stderr]    Compiling num v0.2.0
[INFO] [stderr]    Compiling gumdrop v0.7.0
[INFO] [stderr]    Compiling mortal v0.2.1
[INFO] [stderr]    Compiling linefeed v0.6.0
[INFO] [stderr]    Compiling ketos v0.12.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> src/ketos/compile.rs:333:9
[INFO] [stdout]     |
[INFO] [stdout] 333 |         replace(&mut self.blocks, new_blocks);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 26.49s
[INFO] running `Command { std: "docker" "inspect" "70c5475e0be78a76cc46ffa05f87a3ee21b78e070d7b82a6594673890956c7a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "70c5475e0be78a76cc46ffa05f87a3ee21b78e070d7b82a6594673890956c7a9", kill_on_drop: false }`
[INFO] [stdout] 70c5475e0be78a76cc46ffa05f87a3ee21b78e070d7b82a6594673890956c7a9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 81e9201abe516098ca260cb9f47818c9d27189bf5ddd93076fc262003b09fd56
[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" "81e9201abe516098ca260cb9f47818c9d27189bf5ddd93076fc262003b09fd56", kill_on_drop: false }`
[INFO] [stderr]    Compiling assert_matches v1.3.0
[INFO] [stderr]    Compiling ketos_derive v0.12.0
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> src/ketos/compile.rs:333:9
[INFO] [stdout]     |
[INFO] [stdout] 333 |         replace(&mut self.blocks, new_blocks);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling ketos v0.12.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not compile `ketos`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name conv --edition=2018 tests/conv.rs --error-format=json --json=diagnostic-rendered-ansi --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --test --cfg 'feature="default"' -C metadata=2bdc2f3e3b339520 -C extra-filename=-2bdc2f3e3b339520 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern assert_matches=/opt/rustwide/target/debug/deps/libassert_matches-be85dffef29dfb83.rlib --extern byteorder=/opt/rustwide/target/debug/deps/libbyteorder-6e2b66ea17cbcfed.rlib --extern dirs=/opt/rustwide/target/debug/deps/libdirs-df8627d7381e37f1.rlib --extern gumdrop=/opt/rustwide/target/debug/deps/libgumdrop-b0d5114f1a95bca1.rlib --extern ketos=/opt/rustwide/target/debug/deps/libketos-70228d56f4948ccb.rlib --extern ketos_derive=/opt/rustwide/target/debug/deps/libketos_derive-1b87d1ab18efb07f.so --extern linefeed=/opt/rustwide/target/debug/deps/liblinefeed-ef17f27cb284a0b0.rlib --extern num=/opt/rustwide/target/debug/deps/libnum-59993ebc9d106448.rlib --extern rand=/opt/rustwide/target/debug/deps/librand-0d826e0db237436a.rlib --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" "81e9201abe516098ca260cb9f47818c9d27189bf5ddd93076fc262003b09fd56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81e9201abe516098ca260cb9f47818c9d27189bf5ddd93076fc262003b09fd56", kill_on_drop: false }`
[INFO] [stdout] 81e9201abe516098ca260cb9f47818c9d27189bf5ddd93076fc262003b09fd56
