[INFO] cloning repository https://github.com/MerosCrypto/mc_ristretto
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/MerosCrypto/mc_ristretto" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMerosCrypto%2Fmc_ristretto", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMerosCrypto%2Fmc_ristretto'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2452d9cda6f579b35ba423c31b54a8561d807e59
[INFO] checking MerosCrypto/mc_ristretto against master#9ba3d315b4b2bea7485071eaf4b2681320cd2a27 for pr-124592
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMerosCrypto%2Fmc_ristretto" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/MerosCrypto/mc_ristretto on toolchain 9ba3d315b4b2bea7485071eaf4b2681320cd2a27
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9ba3d315b4b2bea7485071eaf4b2681320cd2a27" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/MerosCrypto/mc_ristretto
[INFO] finished tweaking git repo https://github.com/MerosCrypto/mc_ristretto
[INFO] tweaked toml for git repo https://github.com/MerosCrypto/mc_ristretto written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/MerosCrypto/mc_ristretto 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" "+9ba3d315b4b2bea7485071eaf4b2681320cd2a27" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[ERROR] this task or one of its parent failed!
[ERROR] no output for 300 seconds
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] checking MerosCrypto/mc_ristretto against try#2466b92ed5feb282a98bb984f45d1e6d39f8c1aa for pr-124592
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMerosCrypto%2Fmc_ristretto" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/MerosCrypto/mc_ristretto on toolchain 2466b92ed5feb282a98bb984f45d1e6d39f8c1aa
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2466b92ed5feb282a98bb984f45d1e6d39f8c1aa" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/MerosCrypto/mc_ristretto
[INFO] finished tweaking git repo https://github.com/MerosCrypto/mc_ristretto
[INFO] tweaked toml for git repo https://github.com/MerosCrypto/mc_ristretto written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/MerosCrypto/mc_ristretto 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" "+2466b92ed5feb282a98bb984f45d1e6d39f8c1aa" "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
[ERROR] error running command: no output for 300 seconds
[INFO] checking MerosCrypto/mc_ristretto against try#2466b92ed5feb282a98bb984f45d1e6d39f8c1aa for pr-124592
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMerosCrypto%2Fmc_ristretto" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/MerosCrypto/mc_ristretto on toolchain 2466b92ed5feb282a98bb984f45d1e6d39f8c1aa
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2466b92ed5feb282a98bb984f45d1e6d39f8c1aa" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/MerosCrypto/mc_ristretto
[INFO] finished tweaking git repo https://github.com/MerosCrypto/mc_ristretto
[INFO] tweaked toml for git repo https://github.com/MerosCrypto/mc_ristretto written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/MerosCrypto/mc_ristretto 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" "+2466b92ed5feb282a98bb984f45d1e6d39f8c1aa" "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]      Locking 1 package to latest compatible version
[INFO] [stderr]     Updating mc_ristretto v0.2.0 (/workspace/builds/worker-4-tc2/source) -> v0.3.0
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+2466b92ed5feb282a98bb984f45d1e6d39f8c1aa" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 290ec88d78250619d42ae64c1d9d6a261086c8bf74f27a40986519ea7d9ec2e1
[INFO] running `Command { std: "docker" "start" "-a" "290ec88d78250619d42ae64c1d9d6a261086c8bf74f27a40986519ea7d9ec2e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "290ec88d78250619d42ae64c1d9d6a261086c8bf74f27a40986519ea7d9ec2e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "290ec88d78250619d42ae64c1d9d6a261086c8bf74f27a40986519ea7d9ec2e1", kill_on_drop: false }`
[INFO] [stdout] 290ec88d78250619d42ae64c1d9d6a261086c8bf74f27a40986519ea7d9ec2e1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+2466b92ed5feb282a98bb984f45d1e6d39f8c1aa" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ed9b15517c16af007553d77e9657b15c3943255435ce1f33ac30b22ef430efb0
[INFO] running `Command { std: "docker" "start" "-a" "ed9b15517c16af007553d77e9657b15c3943255435ce1f33ac30b22ef430efb0", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling typenum v1.13.0
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]     Checking subtle v2.4.0
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]     Checking zeroize v1.3.0
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking crypto-mac v0.8.0
[INFO] [stderr]     Checking curve25519-dalek v3.1.0
[INFO] [stderr]     Checking blake2 v0.9.1
[INFO] [stderr]     Checking mc_ristretto v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.62s
[INFO] running `Command { std: "docker" "inspect" "ed9b15517c16af007553d77e9657b15c3943255435ce1f33ac30b22ef430efb0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed9b15517c16af007553d77e9657b15c3943255435ce1f33ac30b22ef430efb0", kill_on_drop: false }`
[INFO] [stdout] ed9b15517c16af007553d77e9657b15c3943255435ce1f33ac30b22ef430efb0