[INFO] fetching crate ftvf 0.5.0...
[INFO] testing ftvf-0.5.0 against master#61469b682c2b0bf9cebc4622f1859e2bb3b7ebca for pr-91743
[INFO] extracting crate ftvf 0.5.0 into /workspace/builds/worker-85/source
[INFO] validating manifest of crates.io crate ftvf 0.5.0 on toolchain 61469b682c2b0bf9cebc4622f1859e2bb3b7ebca
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+61469b682c2b0bf9cebc4622f1859e2bb3b7ebca" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ftvf 0.5.0
[INFO] finished tweaking crates.io crate ftvf 0.5.0
[INFO] tweaked toml for crates.io crate ftvf 0.5.0 written to /workspace/builds/worker-85/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+61469b682c2b0bf9cebc4622f1859e2bb3b7ebca" "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" "+61469b682c2b0bf9cebc4622f1859e2bb3b7ebca" "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-85/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-85/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+61469b682c2b0bf9cebc4622f1859e2bb3b7ebca" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 29bfd8cf57933555fd9cf48f4db1e23c7b346d5549db88176d4e4278307b19bf
[INFO] running `Command { std: "docker" "start" "-a" "29bfd8cf57933555fd9cf48f4db1e23c7b346d5549db88176d4e4278307b19bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "29bfd8cf57933555fd9cf48f4db1e23c7b346d5549db88176d4e4278307b19bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29bfd8cf57933555fd9cf48f4db1e23c7b346d5549db88176d4e4278307b19bf", kill_on_drop: false }`
[INFO] [stdout] 29bfd8cf57933555fd9cf48f4db1e23c7b346d5549db88176d4e4278307b19bf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-85/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-85/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+61469b682c2b0bf9cebc4622f1859e2bb3b7ebca" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 894d99bea4da90b362cfcce42d76fde8e6473f179320950a232469f61167cc18
[INFO] running `Command { std: "docker" "start" "-a" "894d99bea4da90b362cfcce42d76fde8e6473f179320950a232469f61167cc18", kill_on_drop: false }`
[INFO] [stderr]    Compiling ftvf v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.07s
[INFO] running `Command { std: "docker" "inspect" "894d99bea4da90b362cfcce42d76fde8e6473f179320950a232469f61167cc18", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "894d99bea4da90b362cfcce42d76fde8e6473f179320950a232469f61167cc18", kill_on_drop: false }`
[INFO] [stdout] 894d99bea4da90b362cfcce42d76fde8e6473f179320950a232469f61167cc18
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-85/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-85/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+61469b682c2b0bf9cebc4622f1859e2bb3b7ebca" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 893e401a73f0d2e8837fddcc9965b950e0d86714db551aae9eb93c33d05b4943
[INFO] running `Command { std: "docker" "start" "-a" "893e401a73f0d2e8837fddcc9965b950e0d86714db551aae9eb93c33d05b4943", 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]    Compiling ftvf v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 45.96s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/ftvf-73957080c40d4e6b)
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "893e401a73f0d2e8837fddcc9965b950e0d86714db551aae9eb93c33d05b4943", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "893e401a73f0d2e8837fddcc9965b950e0d86714db551aae9eb93c33d05b4943", kill_on_drop: false }`
[INFO] [stdout] 893e401a73f0d2e8837fddcc9965b950e0d86714db551aae9eb93c33d05b4943