[INFO] cloning repository https://github.com/dragan2234/sha2-256-fhe
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dragan2234/sha2-256-fhe" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdragan2234%2Fsha2-256-fhe", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdragan2234%2Fsha2-256-fhe'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 784257d43d0cc64b315f0705c4c06b25e7859cd6
[INFO] checking dragan2234/sha2-256-fhe against try#94e848735e78b58442e0b82e9c60f8f430840389 for pr-149218
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdragan2234%2Fsha2-256-fhe" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/dragan2234/sha2-256-fhe
[INFO] finished tweaking git repo https://github.com/dragan2234/sha2-256-fhe
[INFO] tweaked toml for git repo https://github.com/dragan2234/sha2-256-fhe written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/dragan2234/sha2-256-fhe on toolchain 94e848735e78b58442e0b82e9c60f8f430840389
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+94e848735e78b58442e0b82e9c60f8f430840389" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/dragan2234/sha2-256-fhe already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+94e848735e78b58442e0b82e9c60f8f430840389" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking dragan2234/sha2-256-fhe against try#94e848735e78b58442e0b82e9c60f8f430840389 for pr-149218
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdragan2234%2Fsha2-256-fhe" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/dragan2234/sha2-256-fhe
[INFO] finished tweaking git repo https://github.com/dragan2234/sha2-256-fhe
[INFO] tweaked toml for git repo https://github.com/dragan2234/sha2-256-fhe written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/dragan2234/sha2-256-fhe on toolchain 94e848735e78b58442e0b82e9c60f8f430840389
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+94e848735e78b58442e0b82e9c60f8f430840389" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/dragan2234/sha2-256-fhe already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+94e848735e78b58442e0b82e9c60f8f430840389" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded dyn-stack v0.9.0
[INFO] [stderr]   Downloaded reborrow v0.5.4
[INFO] [stderr]   Downloaded concrete-csprng v0.3.0
[INFO] [stderr]   Downloaded crossbeam-epoch v0.9.14
[INFO] [stderr]   Downloaded pulp v0.11.11
[INFO] [stderr]   Downloaded concrete-fft v0.2.1
[INFO] [stderr]   Downloaded aes v0.8.2
[INFO] [stderr]   Downloaded syn v2.0.14
[INFO] [stderr]   Downloaded tfhe v0.2.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+94e848735e78b58442e0b82e9c60f8f430840389" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 33c5e6fc3cf926f7e2396501dc4ea4261b2c61d78046f3a1ff4b74bd767d1ef9
[INFO] running `Command { std: "docker" "start" "-a" "33c5e6fc3cf926f7e2396501dc4ea4261b2c61d78046f3a1ff4b74bd767d1ef9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "33c5e6fc3cf926f7e2396501dc4ea4261b2c61d78046f3a1ff4b74bd767d1ef9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33c5e6fc3cf926f7e2396501dc4ea4261b2c61d78046f3a1ff4b74bd767d1ef9", kill_on_drop: false }`
[INFO] [stdout] 33c5e6fc3cf926f7e2396501dc4ea4261b2c61d78046f3a1ff4b74bd767d1ef9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "RUSTDOCFLAGS=--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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+94e848735e78b58442e0b82e9c60f8f430840389" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 87a1347308a2b6b3e9cc3318c9fa730b7bb2c5417ac6216d5badda26f93c8b1d
[INFO] running `Command { std: "docker" "start" "-a" "87a1347308a2b6b3e9cc3318c9fa730b7bb2c5417ac6216d5badda26f93c8b1d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.56
[INFO] [stderr]    Compiling crossbeam-utils v0.8.15
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.14
[INFO] [stderr]    Compiling serde_derive v1.0.160
[INFO] [stderr]    Compiling libc v0.2.141
[INFO] [stderr]    Compiling serde v1.0.160
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]     Checking either v1.8.1
[INFO] [stderr]     Checking reborrow v0.5.4
[INFO] [stderr]    Compiling paste v1.0.12
[INFO] [stderr]     Checking cpufeatures v0.2.6
[INFO] [stderr]    Compiling concrete-csprng v0.3.0
[INFO] [stderr]     Checking pulp v0.11.11
[INFO] [stderr]    Compiling tfhe v0.2.3
[INFO] [stderr]     Checking inout v0.1.3
[INFO] [stderr]     Checking dyn-stack v0.9.0
[INFO] [stderr]     Checking cipher v0.4.4
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking aes v0.8.2
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.56/src/lib.rs:92:30
[INFO] [stdout]    |
[INFO] [stdout] 92 |     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking crossbeam-channel v0.5.8
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `proc-macro2` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "87a1347308a2b6b3e9cc3318c9fa730b7bb2c5417ac6216d5badda26f93c8b1d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "87a1347308a2b6b3e9cc3318c9fa730b7bb2c5417ac6216d5badda26f93c8b1d", kill_on_drop: false }`
[INFO] [stdout] 87a1347308a2b6b3e9cc3318c9fa730b7bb2c5417ac6216d5badda26f93c8b1d