[INFO] cloning repository https://github.com/smml1996/rust_program_synthesis
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/smml1996/rust_program_synthesis" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsmml1996%2Frust_program_synthesis", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsmml1996%2Frust_program_synthesis'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e0b3ded526f606577f665bd477e77af29d6f9356
[INFO] checking smml1996/rust_program_synthesis against try#8d46be77cd48fdbcced888d027457e2c9cf2aa16 for pr-142723
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsmml1996%2Frust_program_synthesis" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
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Updating files: 100% (122/122), done.
[INFO] validating manifest of git repo https://github.com/smml1996/rust_program_synthesis on toolchain 8d46be77cd48fdbcced888d027457e2c9cf2aa16
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8d46be77cd48fdbcced888d027457e2c9cf2aa16" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/smml1996/rust_program_synthesis
[INFO] finished tweaking git repo https://github.com/smml1996/rust_program_synthesis
[INFO] tweaked toml for git repo https://github.com/smml1996/rust_program_synthesis written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/smml1996/rust_program_synthesis 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" "+8d46be77cd48fdbcced888d027457e2c9cf2aa16" "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
[INFO] checking smml1996/rust_program_synthesis against try#8d46be77cd48fdbcced888d027457e2c9cf2aa16 for pr-142723
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsmml1996%2Frust_program_synthesis" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] [stderr] Updating files:  13% (16/122)
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Updating files: 100% (122/122), done.
[INFO] validating manifest of git repo https://github.com/smml1996/rust_program_synthesis on toolchain 8d46be77cd48fdbcced888d027457e2c9cf2aa16
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8d46be77cd48fdbcced888d027457e2c9cf2aa16" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/smml1996/rust_program_synthesis
[INFO] finished tweaking git repo https://github.com/smml1996/rust_program_synthesis
[INFO] tweaked toml for git repo https://github.com/smml1996/rust_program_synthesis written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/smml1996/rust_program_synthesis 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" "+8d46be77cd48fdbcced888d027457e2c9cf2aa16" "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 smml1996/rust_program_synthesis against try#8d46be77cd48fdbcced888d027457e2c9cf2aa16 for pr-142723
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsmml1996%2Frust_program_synthesis" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] [stderr] Updating files:  13% (16/122)
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Updating files: 100% (122/122), done.
[INFO] validating manifest of git repo https://github.com/smml1996/rust_program_synthesis on toolchain 8d46be77cd48fdbcced888d027457e2c9cf2aa16
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8d46be77cd48fdbcced888d027457e2c9cf2aa16" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/smml1996/rust_program_synthesis
[INFO] finished tweaking git repo https://github.com/smml1996/rust_program_synthesis
[INFO] tweaked toml for git repo https://github.com/smml1996/rust_program_synthesis written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/smml1996/rust_program_synthesis 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" "+8d46be77cd48fdbcced888d027457e2c9cf2aa16" "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 smml1996/rust_program_synthesis against try#8d46be77cd48fdbcced888d027457e2c9cf2aa16 for pr-142723
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsmml1996%2Frust_program_synthesis" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] [stderr] Updating files:  13% (17/122)
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Updating files: 100% (122/122), done.
[INFO] validating manifest of git repo https://github.com/smml1996/rust_program_synthesis on toolchain 8d46be77cd48fdbcced888d027457e2c9cf2aa16
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8d46be77cd48fdbcced888d027457e2c9cf2aa16" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/smml1996/rust_program_synthesis
[INFO] finished tweaking git repo https://github.com/smml1996/rust_program_synthesis
[INFO] tweaked toml for git repo https://github.com/smml1996/rust_program_synthesis written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/smml1996/rust_program_synthesis 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" "+8d46be77cd48fdbcced888d027457e2c9cf2aa16" "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 smml1996/rust_program_synthesis against try#8d46be77cd48fdbcced888d027457e2c9cf2aa16 for pr-142723
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsmml1996%2Frust_program_synthesis" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] [stderr] Updating files:  13% (16/122)
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[INFO] validating manifest of git repo https://github.com/smml1996/rust_program_synthesis on toolchain 8d46be77cd48fdbcced888d027457e2c9cf2aa16
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8d46be77cd48fdbcced888d027457e2c9cf2aa16" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/smml1996/rust_program_synthesis
[INFO] finished tweaking git repo https://github.com/smml1996/rust_program_synthesis
[INFO] tweaked toml for git repo https://github.com/smml1996/rust_program_synthesis written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/smml1996/rust_program_synthesis 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" "+8d46be77cd48fdbcced888d027457e2c9cf2aa16" "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


no output for 300 seconds