[INFO] fetching crate rtdlib 1.7.1...
[INFO] testing rtdlib-1.7.1 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] extracting crate rtdlib 1.7.1 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate rtdlib 1.7.1 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 rtdlib 1.7.1
[INFO] finished tweaking crates.io crate rtdlib 1.7.1
[INFO] tweaked toml for crates.io crate rtdlib 1.7.1 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] b4e63110cbc93fc9ba438bdcbe5ab262aa02d57a1fd73fc44cfa649ab2d43042
[INFO] running `Command { std: "docker" "start" "-a" "b4e63110cbc93fc9ba438bdcbe5ab262aa02d57a1fd73fc44cfa649ab2d43042", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b4e63110cbc93fc9ba438bdcbe5ab262aa02d57a1fd73fc44cfa649ab2d43042", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4e63110cbc93fc9ba438bdcbe5ab262aa02d57a1fd73fc44cfa649ab2d43042", kill_on_drop: false }`
[INFO] [stdout] b4e63110cbc93fc9ba438bdcbe5ab262aa02d57a1fd73fc44cfa649ab2d43042
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 73cca5005573b133900859a6239bd28f10cdfac17b28ca121ac0047b5b77bb85
[INFO] running `Command { std: "docker" "start" "-a" "73cca5005573b133900859a6239bd28f10cdfac17b28ca121ac0047b5b77bb85", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.108
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling serde_json v1.0.71
[INFO] [stderr]    Compiling itoa v0.4.8
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling time v0.1.43
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling uuid v0.8.2
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling serde-aux v0.6.1
[INFO] [stderr]    Compiling rtdlib v1.7.1 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not compile `rtdlib`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name rtdlib --edition=2018 src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="default"' -C metadata=72d661a323ff2f33 -C extra-filename=-72d661a323ff2f33 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern libc=/opt/rustwide/target/debug/deps/liblibc-91d257e9eed50cc0.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-e57a462b4d27402b.rmeta --extern serde_aux=/opt/rustwide/target/debug/deps/libserde_aux-9b4df629d6e981fe.rmeta --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-48c194fce46377df.so --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-e9b4c2af0204d1f1.rmeta --extern uuid=/opt/rustwide/target/debug/deps/libuuid-f1dc41435a33a64a.rmeta --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "73cca5005573b133900859a6239bd28f10cdfac17b28ca121ac0047b5b77bb85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "73cca5005573b133900859a6239bd28f10cdfac17b28ca121ac0047b5b77bb85", kill_on_drop: false }`
[INFO] [stdout] 73cca5005573b133900859a6239bd28f10cdfac17b28ca121ac0047b5b77bb85