[INFO] fetching crate tunnelto 0.1.19...
[INFO] checking tunnelto-0.1.19 against try#39e1293fce4b650061e85dda88aa428f726a8444 for pr-88041
[INFO] extracting crate tunnelto 0.1.19 into /workspace/builds/worker-44/source
[INFO] validating manifest of crates.io crate tunnelto 0.1.19 on toolchain 39e1293fce4b650061e85dda88aa428f726a8444
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tunnelto 0.1.19
[INFO] finished tweaking crates.io crate tunnelto 0.1.19
[INFO] tweaked toml for crates.io crate tunnelto 0.1.19 written to /workspace/builds/worker-44/source/Cargo.toml
[INFO] crate crates.io crate tunnelto 0.1.19 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "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-44/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 250fa5f4c8c9947e8fbd610cf0b23c9aae45b8854e8397aa79dda29708c63c2c
[INFO] running `Command { std: "docker" "start" "-a" "250fa5f4c8c9947e8fbd610cf0b23c9aae45b8854e8397aa79dda29708c63c2c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "250fa5f4c8c9947e8fbd610cf0b23c9aae45b8854e8397aa79dda29708c63c2c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "250fa5f4c8c9947e8fbd610cf0b23c9aae45b8854e8397aa79dda29708c63c2c", kill_on_drop: false }`
[INFO] [stdout] 250fa5f4c8c9947e8fbd610cf0b23c9aae45b8854e8397aa79dda29708c63c2c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b1d76961338f27443a3acca6c3b9fa2abccfd0b77265fb7a4cd08551708c6d68
[INFO] running `Command { std: "docker" "start" "-a" "b1d76961338f27443a3acca6c3b9fa2abccfd0b77265fb7a4cd08551708c6d68", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking bytes v1.0.1
[INFO] [stderr]    Compiling futures-core v0.3.15
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]    Compiling typenum v1.13.0
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking futures-sink v0.3.15
[INFO] [stderr]    Compiling futures-channel v0.3.15
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]    Compiling futures-task v0.3.15
[INFO] [stderr]     Checking untrusted v0.7.1
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]    Compiling httparse v1.4.1
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]     Checking futures-io v0.3.15
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking slab v0.4.3
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking try-lock v0.2.3
[INFO] [stderr]     Checking utf-8 v0.7.6
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking mime v0.3.16
[INFO] [stderr]     Checking tower-service v0.3.1
[INFO] [stderr]     Checking httpdate v1.0.1
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]    Compiling askama_escape v0.3.0
[INFO] [stderr]    Compiling encoding_rs v0.8.28
[INFO] [stderr]    Compiling humansize v1.1.1
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]     Checking safemem v0.3.3
[INFO] [stderr]     Checking ucd-trie v0.1.3
[INFO] [stderr]     Checking openssl-probe v0.1.4
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking number_prefix v0.3.0
[INFO] [stderr]     Checking bytes v0.5.6
[INFO] [stderr]     Checking ipnet v2.3.1
[INFO] [stderr]     Checking base64 v0.11.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking dtoa v0.4.8
[INFO] [stderr]     Checking scoped-tls v1.0.0
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]     Checking instant v0.1.10
[INFO] [stderr]    Compiling tokio v1.8.1
[INFO] [stderr]     Checking lock_api v0.4.4
[INFO] [stderr]    Compiling futures-macro v0.3.15
[INFO] [stderr]    Compiling futures-util v0.3.15
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking socket2 v0.4.0
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking terminal_size v0.1.17
[INFO] [stderr]     Checking dirs-sys v0.3.6
[INFO] [stderr]     Checking twoway v0.1.8
[INFO] [stderr]     Checking object v0.25.3
[INFO] [stderr]     Checking os_type v2.3.0
[INFO] [stderr]     Checking buf_redux v0.8.4
[INFO] [stderr]     Checking tracing-core v0.1.18
[INFO] [stderr]     Checking pest v2.1.3
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]     Checking unicode-bidi v0.3.5
[INFO] [stderr] error: could not compile `ring`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name build_script_build --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ring-0.16.20/build.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type bin --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="alloc"' --cfg 'feature="default"' --cfg 'feature="dev_urandom_fallback"' --cfg 'feature="once_cell"' -C metadata=9435017973c5b081 -C extra-filename=-9435017973c5b081 --out-dir /opt/rustwide/target/debug/build/ring-9435017973c5b081 -L dependency=/opt/rustwide/target/debug/deps --extern cc=/opt/rustwide/target/debug/deps/libcc-8592373f49399cbe.rlib --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" "b1d76961338f27443a3acca6c3b9fa2abccfd0b77265fb7a4cd08551708c6d68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b1d76961338f27443a3acca6c3b9fa2abccfd0b77265fb7a4cd08551708c6d68", kill_on_drop: false }`
[INFO] [stdout] b1d76961338f27443a3acca6c3b9fa2abccfd0b77265fb7a4cd08551708c6d68