[INFO] fetching crate stocker 0.2.0...
[INFO] checking stocker-0.2.0 against beta for pr-78714
[INFO] extracting crate stocker 0.2.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate stocker 0.2.0 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-1/source/.cargo/config
[INFO] started tweaking crates.io crate stocker 0.2.0
[INFO] finished tweaking crates.io crate stocker 0.2.0
[INFO] tweaked toml for crates.io crate stocker 0.2.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate stocker 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9010ded5c20d4fff6597ce074af2bad5555110371fcb90fdb8eecc55e9695e6d
[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" "9010ded5c20d4fff6597ce074af2bad5555110371fcb90fdb8eecc55e9695e6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9010ded5c20d4fff6597ce074af2bad5555110371fcb90fdb8eecc55e9695e6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9010ded5c20d4fff6597ce074af2bad5555110371fcb90fdb8eecc55e9695e6d", kill_on_drop: false }`
[INFO] [stdout] 9010ded5c20d4fff6597ce074af2bad5555110371fcb90fdb8eecc55e9695e6d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 522e8eee2bff6a6558c1124629aedb3a6ee3615217914c274df6d49d595cdbdf
[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" "522e8eee2bff6a6558c1124629aedb3a6ee3615217914c274df6d49d595cdbdf", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]    Compiling syn v1.0.41
[INFO] [stderr]    Compiling cc v1.0.60
[INFO] [stderr]     Checking hashbrown v0.9.0
[INFO] [stderr]    Compiling encoding_rs v0.8.24
[INFO] [stderr]     Checking async-task v4.0.1
[INFO] [stderr]     Checking trilean v1.0.1
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling num-iter v0.1.41
[INFO] [stderr]     Checking bimap v0.4.0
[INFO] [stderr]     Checking input_buffer v0.3.1
[INFO] [stderr]    Compiling im v15.0.0
[INFO] [stderr]     Checking tracing-core v0.1.16
[INFO] [stderr]     Checking async-mutex v1.3.0
[INFO] [stderr]     Checking bit-set v0.2.0
[INFO] [stderr]     Checking async-channel v1.4.2
[INFO] [stderr]     Checking futures-lite v1.7.0
[INFO] [stderr]     Checking bitmaps v2.1.0
[INFO] [stderr]     Checking num-complex v0.1.43
[INFO] [stderr]     Checking itertools-num v0.1.3
[INFO] [stderr]     Checking blocking v0.4.7
[INFO] [stderr]     Checking sha-1 v0.9.1
[INFO] [stderr]     Checking tracing v0.1.19
[INFO] [stderr]     Checking async-executor v1.3.0
[INFO] [stderr]     Checking blocking v1.0.0
[INFO] [stderr]     Checking indexmap v1.6.0
[INFO] [stderr]    Compiling openssl-sys v0.9.58
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking net2 v0.2.35
[INFO] [stderr]     Checking getrandom v0.1.15
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking socket2 v0.3.15
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking mio v0.7.0
[INFO] [stderr]     Checking nb-connect v1.0.0
[INFO] [stderr]     Checking polling v1.1.0
[INFO] [stderr]     Checking parking_lot_core v0.7.2
[INFO] [stderr]     Checking backtrace v0.3.50
[INFO] [stderr]     Checking signal-hook-registry v1.2.1
[INFO] [stderr]     Checking termios v0.3.2
[INFO] [stderr]     Checking clicolors-control v1.0.1
[INFO] [stderr]     Checking slice-deque v0.1.16
[INFO] [stderr]     Checking sized-chunks v0.6.2
[INFO] [stderr]     Checking async-io v1.1.2
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking parking_lot v0.10.2
[INFO] [stderr]     Checking console v0.9.2
[INFO] [stderr]     Checking signal-hook v0.1.16
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]     Checking error-chain v0.11.0
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand_xoshiro v0.4.0
[INFO] [stderr]     Checking num-bigint v0.1.44
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking reactive-rs v0.1.1
[INFO] [stderr]     Checking async-global-executor v1.1.1
[INFO] [stderr]     Checking libmath v0.2.1
[INFO] [stderr]     Checking ta v0.1.5
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling openssl v0.10.30
[INFO] [stderr]    Compiling native-tls v0.2.4
[INFO] [stderr]     Checking better-panic v0.2.0
[INFO] [stderr]     Checking async-std v1.6.4
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking gcollections v1.4.0
[INFO] [stderr]     Checking intervallum v1.3.0
[INFO] [stderr]     Checking tungstenite v0.11.1
[INFO] [stderr]    Compiling pin-project-internal v0.4.23
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]    Compiling snafu-derive v0.6.9
[INFO] [stderr]    Compiling smol-potat-derive v0.1.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]    Compiling argh_derive v0.1.1
[INFO] [stderr]    Compiling shrinkwraprs v0.3.0
[INFO] [stderr]    Compiling derive-new v0.5.8
[INFO] [stderr]    Compiling strum_macros v0.18.0
[INFO] [stderr]    Compiling derive_more v0.99.10
[INFO] [stderr]    Compiling derivative v2.1.1
[INFO] [stderr] error: could not compile `snafu-derive`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name snafu_derive --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/snafu-derive-0.6.9/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type proc-macro --emit=dep-info,link -C prefer-dynamic -C embed-bitcode=no -C debuginfo=2 -C metadata=90723eb36db3d7e0 -C extra-filename=-90723eb36db3d7e0 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-02b16d29db92268e.rlib --extern quote=/opt/rustwide/target/debug/deps/libquote-e236ef9e5629a006.rlib --extern syn=/opt/rustwide/target/debug/deps/libsyn-4c8594347456d102.rlib --extern proc_macro --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" "522e8eee2bff6a6558c1124629aedb3a6ee3615217914c274df6d49d595cdbdf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "522e8eee2bff6a6558c1124629aedb3a6ee3615217914c274df6d49d595cdbdf", kill_on_drop: false }`
[INFO] [stdout] 522e8eee2bff6a6558c1124629aedb3a6ee3615217914c274df6d49d595cdbdf